/* ==========================================================================
   Recustomer Engineer Entrance Book - Premium Light Theme
   Apple-inspired minimalist design
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables - Premium Light Theme
   -------------------------------------------------------------------------- */
:root {
    /* Colors - Ultra Clean Light Theme */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #fafafa;
    --color-bg-tertiary: #f5f5f7;
    --color-bg-card: #ffffff;
    --color-bg-card-hover: #fafafa;

    --color-text-primary: #1d1d1f;
    --color-text-secondary: #515154;
    --color-text-tertiary: #86868b;

    --color-border: rgba(0, 0, 0, 0.04);
    --color-border-hover: rgba(0, 0, 0, 0.08);
    --color-border-strong: rgba(0, 0, 0, 0.12);

    /* Accent - Premium accent colors */
    --color-accent-1: #1d1d1f;
    --color-accent-2: #0071e3;
    --color-accent-3: #515154;
    --color-accent-gradient-start: #2563eb;
    --color-accent-gradient-end: #7c3aed;

    /* Premium gradients for special elements */
    --gradient-primary: linear-gradient(135deg, #1d1d1f, #424245);
    --gradient-secondary: linear-gradient(135deg, #f5f5f7, #e8e8ed);
    --gradient-text: linear-gradient(135deg, #2563eb, #7c3aed, #1d1d1f);
    --gradient-text-animated: linear-gradient(90deg, #2563eb, #7c3aed, #ec4899, #2563eb);
    --gradient-hero: linear-gradient(180deg, #fafafa 0%, #ffffff 100%);
    --gradient-cta: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 50%, #e2e8f0 100%);

    /* Typography - Larger, bolder */
    --font-family: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.8125rem;
    --font-size-sm: 0.9375rem;
    --font-size-base: 1.0625rem;
    --font-size-lg: 1.1875rem;
    --font-size-xl: 1.375rem;
    --font-size-2xl: 1.75rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3.25rem;
    --font-size-5xl: 4.5rem;
    --font-size-6xl: 6rem;

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    --line-height-tight: 1.05;
    --line-height-snug: 1.2;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    --letter-spacing-tight: -0.03em;
    --letter-spacing-normal: -0.01em;

    /* Spacing - More generous */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 5rem;
    --spacing-4xl: 8rem;
    --spacing-5xl: 12rem;

    /* Border Radius - Softer */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.25rem;
    --radius-2xl: 1.75rem;
    --radius-3xl: 2.5rem;
    --radius-full: 9999px;

    /* Shadows - Ultra subtle */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.02);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.06);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.08);
    --shadow-2xl: 0 24px 64px rgba(0, 0, 0, 0.1);
    --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.02);

    /* Transitions - Smoother */
    --transition-fast: 200ms cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-normal: 400ms cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-slow: 600ms cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Layout */
    --container-max: 1280px;
    --container-narrow: 900px;
    --nav-height: 56px;
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    overflow-x: hidden;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

::selection {
    background: rgba(29, 29, 31, 0.1);
    color: var(--color-text-primary);
}

a {
    color: inherit;
    text-decoration: none;
    transition: all var(--transition-fast);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-3xl);
    }
}

.gradient-text {
    background: var(--gradient-text);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmerText 4s ease-in-out infinite;
}

@keyframes shimmerText {
    0%, 100% { background-position: 0% center; }
    50% { background-position: 100% center; }
}

.text-balance {
    text-wrap: balance;
}

/* --------------------------------------------------------------------------
   Buttons - Premium Style
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 14px 32px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
    white-space: nowrap;
    border: none;
    cursor: pointer;
    letter-spacing: var(--letter-spacing-normal);
}

.btn-primary {
    background: var(--color-text-primary);
    color: var(--color-bg-primary);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: #424245;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 1.5px solid var(--color-border-strong);
}

.btn-outline:hover {
    background: var(--color-bg-secondary);
    border-color: var(--color-text-tertiary);
}

.btn-large {
    padding: 18px 40px;
    font-size: var(--font-size-base);
}

.btn-glow {
    position: relative;
    overflow: hidden;
}

.btn-glow::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
}

.btn-glow:hover::before {
    left: 100%;
}

.btn-primary.btn-glow {
    background: linear-gradient(135deg, #1d1d1f, #2d2d30);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
}

.btn-primary.btn-glow:hover {
    background: linear-gradient(135deg, #2d2d30, #3d3d40);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(255, 255, 255, 0.08) inset;
}

/* --------------------------------------------------------------------------
   Navigation - Minimal & Clean
   -------------------------------------------------------------------------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(29, 29, 31, 0.92);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--color-border);
    height: var(--nav-height);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-logo {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.logo-text {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: #ffffff;
    letter-spacing: -0.02em;
}

.logo-subtitle {
    font-size: 10px;
    color: rgba(255, 255, 255, 0.6);
    color: var(--color-text-tertiary);
    letter-spacing: 0.02em;
    font-weight: var(--font-weight-medium);
}

.nav-menu {
    display: none;
    align-items: center;
    gap: var(--spacing-2xl);
}

@media (min-width: 1024px) {
    .nav-menu {
        display: flex;
    }
}

.nav-link {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent-gradient-start), var(--color-accent-gradient-end));
    transition: width var(--transition-normal);
    border-radius: 1px;
}

.nav-link:hover {
    color: #ffffff;
}

.nav-link:hover::after {
    width: 100%;
}


/* --------------------------------------------------------------------------
   Hero Section - Breathtaking
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 75vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4xl) var(--spacing-xl);
    overflow: hidden;
    background: var(--gradient-hero);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 100% 100% at 50% -20%, rgba(37, 99, 235, 0.08), transparent 60%),
                radial-gradient(ellipse 80% 60% at 80% 90%, rgba(124, 58, 237, 0.05), transparent 50%),
                radial-gradient(ellipse 60% 40% at 20% 80%, rgba(236, 72, 153, 0.03), transparent 40%);
    animation: heroGradientShift 15s ease-in-out infinite;
}

@keyframes heroGradientShift {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.85;
    }
}

.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-content {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-eyebrow {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-tertiary);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-lg);
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, var(--font-size-6xl));
    font-weight: var(--font-weight-extrabold);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
    margin-bottom: var(--spacing-xl);
    color: var(--color-text-primary);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-2xl);
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

@media (min-width: 768px) {
    .hero-description {
        font-size: var(--font-size-xl);
    }
}

.hero-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-3xl);
}

@media (min-width: 640px) {
    .hero-cta {
        flex-direction: row;
        justify-content: center;
    }
}

/* Scroll Indicator */
.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-3xl);
}

.scroll-indicator span {
    font-size: 10px;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-tertiary);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, var(--color-text-tertiary), transparent);
    animation: scroll-line 2s ease-in-out infinite;
}

@keyframes scroll-line {
    0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
    50% { opacity: 1; transform: scaleY(1); }
}

.hide-mobile {
    display: none;
}

.nowrap {
    white-space: nowrap;
}

@media (min-width: 768px) {
    .hide-mobile {
        display: inline;
    }
}

/* --------------------------------------------------------------------------
   Section Styles - Generous Spacing
   -------------------------------------------------------------------------- */
.section {
    padding: var(--spacing-4xl) 0;
}

.section-alt {
    background: var(--color-bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.section-label {
    display: inline-block;
    font-size: 11px;
    font-weight: var(--font-weight-bold);
    color: transparent;
    background: linear-gradient(135deg, var(--color-accent-gradient-start), var(--color-accent-gradient-end));
    -webkit-background-clip: text;
    background-clip: text;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
    color: var(--color-text-primary);
}

@media (min-width: 768px) {
    .section-title {
        font-size: var(--font-size-4xl);
    }
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-top: var(--spacing-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.subsection-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xl);
    letter-spacing: var(--letter-spacing-normal);
}

.conference-highlight-text {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin-top: calc(-1 * var(--spacing-md));
    margin-bottom: var(--spacing-xl);
    line-height: var(--line-height-relaxed);
}

.pycon-photos {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.pycon-photo {
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.pycon-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

@media (max-width: 640px) {
    .pycon-photos {
        grid-template-columns: 1fr;
    }
}

/* --------------------------------------------------------------------------
   Deck Embed Section
   -------------------------------------------------------------------------- */
.deck-section {
    padding-bottom: var(--spacing-4xl);
}

.deck-embed {
    max-width: 900px;
    margin: 0 auto;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    background: var(--color-bg-tertiary);
}

.deck-embed iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* --------------------------------------------------------------------------
   Video Section
   -------------------------------------------------------------------------- */
.video-section {
    max-width: 900px;
    margin: 0 auto var(--spacing-4xl);
}

.video-wrapper {
    position: relative;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    background: var(--color-bg-tertiary);
    box-shadow: var(--shadow-2xl);
}

.video-wrapper iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.video-thumbnail-link {
    display: block;
    text-decoration: none;
}

.video-thumbnail {
    position: relative;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    background: var(--color-bg-tertiary);
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

.video-thumbnail:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-xl);
}

.video-thumbnail:hover img {
    transform: scale(1.05);
}

.video-play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.3);
    transition: var(--transition-normal);
}

.video-thumbnail:hover .video-play-overlay {
    background: rgba(0, 0, 0, 0.4);
}

.video-play-button {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    transition: var(--transition-normal);
}

.video-play-button svg {
    width: 32px;
    height: 32px;
    color: #ff0000;
    margin-left: 4px;
}

.video-thumbnail:hover .video-play-button {
    transform: scale(1.1);
}

.video-play-text {
    margin-top: var(--spacing-md);
    color: #ffffff;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* --------------------------------------------------------------------------
   Products Grid
   -------------------------------------------------------------------------- */
.products-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-4xl);
    margin-top: var(--spacing-3xl);
}

@media (min-width: 768px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.product-card {
    display: block;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent-gradient-start), var(--color-accent-gradient-end));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.product-card:hover {
    border-color: rgba(37, 99, 235, 0.2);
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 24px 48px rgba(37, 99, 235, 0.08), 0 12px 24px rgba(0, 0, 0, 0.06);
}

.product-card:hover::before {
    opacity: 1;
}

.product-icon {
    width: 56px;
    height: 56px;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
    opacity: 0.8;
    transition: all var(--transition-normal);
}

.product-card:hover .product-icon {
    opacity: 1;
    transform: scale(1.05);
}

.product-icon svg {
    width: 100%;
    height: 100%;
}

.product-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.product-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-lg);
}

.product-link {
    font-size: var(--font-size-sm);
    color: var(--color-accent-2);
    font-weight: var(--font-weight-medium);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.product-card:hover .product-link {
    color: var(--color-text-primary);
}

/* --------------------------------------------------------------------------
   Mission Section
   -------------------------------------------------------------------------- */
.mission-section {
    max-width: 900px;
    margin: var(--spacing-4xl) auto;
}

.mission-card {
    text-align: center;
    padding: var(--spacing-3xl);
}

.mission-quote {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-relaxed);
    color: var(--color-text-secondary);
}

@media (min-width: 768px) {
    .mission-quote {
        font-size: var(--font-size-2xl);
    }
}

/* --------------------------------------------------------------------------
   Team Photo Gallery
   -------------------------------------------------------------------------- */
.team-photo-gallery {
    max-width: 960px;
    margin: 0 auto var(--spacing-4xl);
    display: grid;
    gap: var(--spacing-md);
}

.team-photo-main {
    border-radius: var(--radius-3xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.team-photo-main img {
    width: 100%;
    height: auto;
    display: block;
}

.team-photo-sub {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.team-photo-item {
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    aspect-ratio: 16 / 10;
}

.team-photo-item:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-xl);
}

.team-photo-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

@media (max-width: 640px) {
    .team-photo-sub {
        grid-template-columns: 1fr;
    }
}

/* --------------------------------------------------------------------------
   Tech Stack
   -------------------------------------------------------------------------- */
.tech-stack-section {
    margin-bottom: var(--spacing-4xl);
}

.tech-description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-2xl);
    max-width: 800px;
}

/* Tech Categories Layout */
.tech-categories-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 1024px) {
    .tech-categories-row {
        grid-template-columns: repeat(3, 1fr);
    }
    .tech-categories-row:first-of-type {
        grid-template-columns: 25% 25% 44%;
    }
    .tech-categories-row:last-child {
        grid-template-columns: repeat(2, 1fr);
    }
}

.tech-category {
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
}

.tech-category-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--color-accent-gradient-start);
}

.tech-category-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-sm);
}

@media (min-width: 640px) {
    .tech-category-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.tech-category-grid.tech-category-grid--2col {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tech-category-grid.tech-category-grid--4col {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-sm);
    background: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    transition: all 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.tech-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.tech-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-icon img {
    width: 36px;
    height: 36px;
    object-fit: contain;
    transition: all var(--transition-normal);
}

.tech-name {
    font-size: 11px;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    text-align: center;
    white-space: nowrap;
}

/* AWS & Text-based Tech Icons */
.tech-icon-aws {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #FF9900, #FFB347);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 9px;
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.02em;
    line-height: 1;
}

.tech-icon-text {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: var(--font-weight-extrabold);
    letter-spacing: -0.02em;
    line-height: 1;
}

/* --------------------------------------------------------------------------
   Architecture Section
   -------------------------------------------------------------------------- */
.architecture-info {
    margin-bottom: var(--spacing-4xl);
}

.architecture-card {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-sm);
}

.architecture-card h4 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

.architecture-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
}

@media (min-width: 768px) {
    .architecture-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

.architecture-list li {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
}

.architecture-list li:last-child {
    border-bottom: none;
}

.architecture-list li strong {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-semibold);
}

.architecture-diagram {
    margin-top: var(--spacing-xl);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.architecture-diagram img {
    width: 100%;
    height: auto;
    display: block;
}

/* Metrics Image */
.metrics-image {
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    max-width: 800px;
    margin: 0 auto;
}

.metrics-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* --------------------------------------------------------------------------
   Features Grid
   -------------------------------------------------------------------------- */
.features-section {
    margin-top: var(--spacing-4xl);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 640px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-xs);
}

.feature-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-highlight {
    grid-column: span 1;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.03), rgba(124, 58, 237, 0.02));
    border-color: rgba(37, 99, 235, 0.1);
}

@media (min-width: 640px) {
    .feature-highlight {
        grid-column: span 2;
    }
}

/* Rich feature card for detailed descriptions */
.feature-card-rich {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl) var(--spacing-2xl) var(--spacing-xl);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-xs);
}

.feature-card-rich:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-card-rich .feature-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.feature-card-rich .feature-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

.feature-card-rich .feature-text + .feature-text {
    margin-top: var(--spacing-sm);
}

.feature-accent {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    color: transparent;
    background: linear-gradient(135deg, var(--color-accent-gradient-start), var(--color-accent-gradient-end));
    -webkit-background-clip: text;
    background-clip: text;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

/* Rich features stacked layout */
.features-stack {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    max-width: 900px;
    margin: 0 auto;
}

.feature-number {
    display: inline-block;
    font-size: 11px;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-tertiary);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.05em;
}

.feature-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.feature-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* --------------------------------------------------------------------------
   Selection Section
   -------------------------------------------------------------------------- */
.positions-section,
.flow-section,
.ideal-section {
    margin-bottom: var(--spacing-4xl);
}

.positions-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .positions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.position-card {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
}

.position-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.position-card.featured {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.04), rgba(124, 58, 237, 0.02));
    border-color: rgba(37, 99, 235, 0.2);
    grid-column: span 1;
    position: relative;
    overflow: hidden;
}

.position-card.featured::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent-gradient-start), var(--color-accent-gradient-end));
}

.position-card.featured:hover {
    border-color: rgba(37, 99, 235, 0.3);
    box-shadow: 0 24px 48px rgba(37, 99, 235, 0.1), 0 12px 24px rgba(0, 0, 0, 0.06);
}

@media (min-width: 768px) {
    .position-card.featured {
        grid-column: span 2;
    }
}

.position-header {
    margin-bottom: var(--spacing-md);
}

.position-badge {
    display: inline-block;
    padding: 6px 14px;
    background: linear-gradient(135deg, var(--color-accent-gradient-start), var(--color-accent-gradient-end));
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: var(--font-weight-bold);
    color: #ffffff;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.02em;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.position-badge.pulse {
    animation: badgePulse 2s ease-in-out infinite;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25), 0 0 0 0 rgba(37, 99, 235, 0.4);
}

@keyframes badgePulse {
    0%, 100% {
        opacity: 1;
        box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25), 0 0 0 0 rgba(37, 99, 235, 0.4);
    }
    50% {
        opacity: 0.9;
        box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25), 0 0 0 8px rgba(37, 99, 235, 0);
    }
}

.position-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
}

.position-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-lg);
}

.position-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.position-tags li {
    padding: 6px 12px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
}

.position-link {
    display: inline-block;
    padding: 12px 24px;
    background: var(--color-text-primary);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-bg-primary);
    transition: all var(--transition-fast);
}

.position-link:hover {
    background: #424245;
    transform: translateY(-2px);
}

/* Selection Flow */
.flow-timeline {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    max-width: 700px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .flow-timeline {
        flex-direction: row;
        max-width: none;
        justify-content: space-between;
    }
}

.flow-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .flow-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        flex: 1;
    }
}

.flow-step {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--color-accent-gradient-start), var(--color-accent-gradient-end));
    border: none;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    color: #ffffff;
    flex-shrink: 0;
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.25);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s ease;
}

.flow-item:hover .flow-step {
    transform: scale(1.1);
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
}

.flow-content h4 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.flow-content p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* Ideal Candidate */
.ideal-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 640px) {
    .ideal-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.ideal-item {
    padding: var(--spacing-2xl);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-xs);
}

.ideal-item:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.ideal-content h4 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.ideal-content p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

.note-box {
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.note-box h4 {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.note-box p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* --------------------------------------------------------------------------
   Environment Section
   -------------------------------------------------------------------------- */
.environment-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-4xl);
}

@media (min-width: 640px) {
    .environment-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .environment-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.env-card {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-xs);
}

.env-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.env-title {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.env-text {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.env-detail {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

/* Office Gallery */
.office-section {
    margin-top: var(--spacing-4xl);
}

.office-gallery {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .office-gallery {
        grid-template-columns: repeat(3, 1fr);
    }
}

.office-photo {
    aspect-ratio: 16 / 10;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.office-photo:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-xl);
}

.office-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* --------------------------------------------------------------------------
   Members Section
   -------------------------------------------------------------------------- */
.members-section {
    margin-bottom: var(--spacing-4xl);
}

.board-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .board-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* CTO card with announcement image side by side */
.cto-card-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .cto-card-row {
        grid-template-columns: 1fr 1fr;
        grid-column: 1 / -1;
    }
}

.cto-announcement-img {
    border-radius: var(--radius-2xl);
    overflow: hidden;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.cto-announcement-img:hover {
    box-shadow: var(--shadow-lg);
}

.cto-announcement-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.member-card {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.member-card:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-lg);
}

.member-card.board {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.member-photo {
    width: 140px;
    height: 140px;
    border-radius: var(--radius-full);
    overflow: hidden;
    flex-shrink: 0;
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.member-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.member-photo.placeholder {
    background: var(--color-bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-tertiary);
    font-size: var(--font-size-2xl);
}

.member-tag {
    display: inline-block;
    padding: 5px 10px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.02em;
}

.member-tag.cto,
.member-tag.coo {
    background: var(--color-text-primary);
    color: var(--color-bg-primary);
}

.member-tag.engineer {
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
}

.member-tag.em {
    background: #1d3557;
    color: #ffffff;
}

.member-tag.po {
    background: #2a6f4e;
    color: #ffffff;
}

.member-name {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.member-bio {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

.member-quote {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    font-style: italic;
    padding-left: var(--spacing-md);
    border-left: 2px solid var(--color-border-strong);
    margin-top: var(--spacing-lg);
}

.member-quote.small {
    font-size: var(--font-size-xs);
}

/* Clickable Member Cards */
.member-card.clickable {
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                box-shadow 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.member-card.clickable:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.member-card.clickable:active {
    transform: translateY(-2px);
}

.member-more {
    display: inline-block;
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-xs);
    color: var(--color-accent-2);
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.01em;
    transition: opacity 0.2s;
}

.member-card.clickable:hover .member-more {
    opacity: 0.7;
}

/* Member Detail Modal */
.member-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0);
    backdrop-filter: blur(0px);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    pointer-events: none;
    transition: background 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                backdrop-filter 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.member-modal-overlay.active {
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    pointer-events: auto;
}

.member-modal {
    background: var(--color-bg-primary);
    width: 100%;
    max-width: 680px;
    max-height: 90vh;
    border-radius: 20px 20px 0 0;
    overflow: hidden;
    transform: translateY(100%);
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
}

.member-modal-overlay.active .member-modal {
    transform: translateY(0);
}

.member-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 10;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, transform 0.2s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.member-modal-close:hover {
    background: rgba(255, 255, 255, 1);
    transform: scale(1.1);
}

.member-modal-close svg {
    width: 18px;
    height: 18px;
    color: var(--color-text-primary);
}

.member-modal-content {
    overflow-y: auto;
    max-height: 90vh;
    -webkit-overflow-scrolling: touch;
}

/* Modal Hero */
.modal-hero {
    position: relative;
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-2xl) var(--spacing-2xl) var(--spacing-xl);
    align-items: center;
    border-bottom: 1px solid var(--color-border);
}

.modal-hero img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.modal-hero-info {
    flex: 1;
}

.modal-hero-info h2 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin: var(--spacing-xs) 0;
    line-height: 1.3;
}

.modal-hero-info .member-tag {
    margin-bottom: 0;
}

.modal-summary {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-top: var(--spacing-xs);
}

/* Modal Sections */
.modal-sections {
    padding: var(--spacing-lg) var(--spacing-2xl) var(--spacing-3xl);
}

.modal-section {
    margin-bottom: var(--spacing-xl);
}

.modal-section:last-child {
    margin-bottom: 0;
}

.modal-section h3 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.01em;
}

.modal-section p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-sm);
}

.modal-section p:last-child {
    margin-bottom: 0;
}

.modal-section.highlight {
    background: var(--color-bg-tertiary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
}

.modal-section.highlight h3 {
    color: var(--color-accent-1);
}

/* Modal responsive */
@media (min-width: 768px) {
    .member-modal {
        border-radius: 20px;
        max-height: 85vh;
        margin-bottom: 5vh;
    }

    .member-modal-content {
        max-height: 85vh;
    }

    .member-modal-overlay {
        align-items: center;
    }

    .member-modal-overlay .member-modal {
        transform: translateY(40px);
        opacity: 0;
        transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    opacity 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    .member-modal-overlay.active .member-modal {
        transform: translateY(0);
        opacity: 1;
    }

    .modal-hero img {
        width: 140px;
        height: 140px;
    }

    .modal-hero-info h2 {
        font-size: var(--font-size-2xl);
    }
}

@media (max-width: 480px) {
    .modal-hero {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-lg);
    }

    .modal-hero img {
        width: 100px;
        height: 100px;
    }

    .modal-sections {
        padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-2xl);
    }
}

/* CTO Announcement */
.cto-announcement {
    margin-top: var(--spacing-lg);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.cto-announcement img {
    width: 100%;
    height: auto;
    display: block;
}

/* Company Photo */
.company-photo-section {
    margin-bottom: var(--spacing-4xl);
}

.company-photo {
    border-radius: var(--radius-3xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    max-width: 900px;
    margin: 0 auto;
}

.company-photo img {
    width: 100%;
    height: auto;
    display: block;
}

.featured-member {
    grid-column: 1 / -1;
}

@media (min-width: 768px) {
    .featured-member {
        display: grid;
        grid-template-columns: 200px 1fr;
        gap: var(--spacing-2xl);
        text-align: left;
        align-items: start;
    }

    .featured-member .member-photo {
        width: 200px;
        height: 200px;
        margin-bottom: 0;
    }
}

.team-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 640px) {
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .team-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* --------------------------------------------------------------------------
   Activities Section
   -------------------------------------------------------------------------- */
.activities-section {
    margin-bottom: var(--spacing-4xl);
}

.award-highlight {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.02), rgba(124, 58, 237, 0.02));
    border: 1px solid rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-3xl);
    padding: var(--spacing-4xl);
    text-align: center;
    margin-bottom: var(--spacing-4xl);
    box-shadow: 0 24px 64px rgba(37, 99, 235, 0.06), 0 12px 32px rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.award-highlight::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent-gradient-start), var(--color-accent-gradient-end), #ec4899);
}

.award-category {
    font-size: 11px;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: var(--spacing-sm);
}

.award-main-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    letter-spacing: var(--letter-spacing-tight);
}

@media (min-width: 768px) {
    .award-main-title {
        font-size: var(--font-size-3xl);
    }
}

.award-sub-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-2xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* CTO of the Year content layout */
.cto-year-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto var(--spacing-xl);
}

@media (min-width: 768px) {
    .cto-year-content {
        grid-template-columns: 1fr 1fr;
    }
}

.cto-year-image {
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.cto-year-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.cto-year-video {
    display: flex;
    align-items: stretch;
}

.cto-year-video .video-thumbnail-link {
    flex: 1;
}

.cto-year-video .video-thumbnail {
    height: 100%;
}

.cto-year-video .video-thumbnail img {
    height: 100%;
    object-fit: cover;
}

.video-embed {
    max-width: 750px;
    margin: 0 auto;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.video-embed iframe {
    width: 100%;
    height: 100%;
}

.activities-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .activities-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.activity-card {
    display: block;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.activity-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.activity-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.activity-badge {
    display: inline-block;
    padding: 6px 12px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-secondary);
    letter-spacing: 0.02em;
}

.activity-badge.talk {
    background: transparent;
    border: 1px solid var(--color-border-strong);
}

.activity-year {
    font-size: 12px;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-tertiary);
    margin-left: auto;
}

.activity-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.activity-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-lg);
}

.activity-link {
    font-size: var(--font-size-sm);
    color: var(--color-accent-2);
    font-weight: var(--font-weight-medium);
}

.activity-link:hover {
    color: var(--color-text-primary);
}

/* Talk List - Individual presentation links */
.talk-list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-md) 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.talk-list li {
    font-size: var(--font-size-xs);
    line-height: var(--line-height-snug);
    padding-left: var(--spacing-md);
    position: relative;
}

.talk-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.45em;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent-gradient-start), var(--color-accent-gradient-end));
}

.talk-list li a {
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.talk-list li a:hover {
    color: var(--color-accent-2);
}

/* Multiple activity links container */
.activity-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm) var(--spacing-md);
}

/* Award photos */
.award-photos {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.award-photo {
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.award-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

@media (max-width: 640px) {
    .award-photos {
        grid-template-columns: 1fr;
    }
}

/* Award links container */
.award-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm) var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

/* PyCon Gallery */
.pycon-gallery {
    margin-bottom: var(--spacing-4xl);
}

.pycon-gallery-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .pycon-gallery-grid {
        grid-template-columns: 3fr 2fr;
        align-items: stretch;
    }
}

.pycon-gallery-item {
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.pycon-gallery-item:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-xl);
}

.pycon-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Articles Grid */
.articles-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

@media (min-width: 640px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .articles-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.article-card {
    display: block;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-xs);
}

.article-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.article-source {
    font-size: 11px;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.article-card h4 {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-snug);
    color: var(--color-text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-note {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    margin-top: var(--spacing-sm);
    display: block;
}

/* Tech Blog Featured Section */
.techblog-featured {
    margin-bottom: var(--spacing-4xl);
}

.techblog-featured-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-3xl);
    background: linear-gradient(135deg, #f0f4ff, #f5f0ff, #fff0f8);
    border: 1px solid rgba(37, 99, 235, 0.08);
    border-radius: var(--radius-3xl);
    padding: var(--spacing-3xl) var(--spacing-4xl);
}

.techblog-featured-content {
    flex: 1;
}

.techblog-label {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent-gradient-start);
    margin-bottom: var(--spacing-md);
}

.techblog-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-extrabold);
    letter-spacing: var(--letter-spacing-tight);
    line-height: var(--line-height-tight);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.techblog-desc {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-xl);
    max-width: 540px;
}

.techblog-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-md);
}

.advent-calendar-section {
    margin-top: var(--spacing-xl);
}

.advent-calendar-intro {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.trending-articles-list {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--spacing-md) 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.trending-articles-list li a {
    font-size: var(--font-size-sm);
    color: var(--color-accent-gradient-start);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.trending-articles-list li a::before {
    content: "📈 ";
}

.trending-articles-list li a:hover {
    opacity: 0.7;
}

.advent-calendar-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.advent-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.advent-card:hover {
    border-color: rgba(0, 0, 0, 0.12);
    background: rgba(255, 255, 255, 0.95);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.advent-card-badge {
    font-size: 10px;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #e25d10;
}

.advent-card-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    line-height: var(--line-height-snug);
}

@media (max-width: 640px) {
    .advent-calendar-cards {
        grid-template-columns: 1fr;
    }
}

.techblog-featured-logo {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    opacity: 0.15;
}

.techblog-featured-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

@media (max-width: 768px) {
    .techblog-featured-inner {
        flex-direction: column;
        padding: var(--spacing-2xl);
        text-align: center;
    }

    .techblog-title {
        font-size: var(--font-size-2xl);
    }

    .techblog-desc {
        max-width: none;
    }

    .techblog-featured-logo {
        width: 80px;
        height: 80px;
        order: -1;
    }
}

/* --------------------------------------------------------------------------
   Productivity Section
   -------------------------------------------------------------------------- */
.productivity-intro {
    margin-bottom: var(--spacing-4xl);
}

.productivity-points {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 640px) {
    .productivity-points {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .productivity-points {
        grid-template-columns: repeat(2, 1fr);
    }
}

.productivity-point {
    padding: var(--spacing-2xl);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-xs);
}

.productivity-point:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.point-content h4 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.point-content p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* Award Section */
.award-section {
    margin-bottom: var(--spacing-4xl);
}

.award-card {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-3xl);
    padding: var(--spacing-3xl);
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    box-shadow: var(--shadow-lg);
}

.award-header {
    margin-bottom: var(--spacing-lg);
}

.award-title-group {
    text-align: center;
}

.award-category-small {
    font-size: 11px;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: var(--spacing-xs);
}

.award-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

.award-desc {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* Metrics */
.metrics-section {
    margin-top: var(--spacing-4xl);
}

.metrics-note {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .metrics-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.metric-card {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.metric-value {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-text-primary);
    line-height: 1;
    letter-spacing: var(--letter-spacing-tight);
}

.metric-unit {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    margin-left: var(--spacing-xs);
}

.metric-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-top: var(--spacing-sm);
}

/* --------------------------------------------------------------------------
   CTA Section
   -------------------------------------------------------------------------- */
.cta-section {
    position: relative;
    padding: var(--spacing-5xl) 0;
    overflow: hidden;
    background: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 50%, var(--color-bg-tertiary) 100%);
}

.cta-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.cta-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 100% 80% at 50% 30%, rgba(37, 99, 235, 0.06), transparent 60%),
                radial-gradient(ellipse 80% 50% at 30% 70%, rgba(124, 58, 237, 0.04), transparent 50%),
                radial-gradient(ellipse 60% 40% at 70% 80%, rgba(236, 72, 153, 0.03), transparent 40%);
    animation: ctaGradientPulse 10s ease-in-out infinite;
}

@keyframes ctaGradientPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.05); }
}

.cta-content {
    text-align: center;
    max-width: 750px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-thanks {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    margin-bottom: var(--spacing-lg);
}

.cta-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-extrabold);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
    margin-bottom: var(--spacing-xl);
    color: var(--color-text-primary);
}

.cta-title .gradient-text {
    background: linear-gradient(135deg, var(--color-accent-gradient-start), var(--color-accent-gradient-end), #ec4899);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

@media (min-width: 768px) {
    .cta-title {
        font-size: var(--font-size-5xl);
    }
}

.cta-desc {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-2xl);
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

@media (min-width: 640px) {
    .cta-buttons {
        flex-direction: row;
        justify-content: center;
    }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    background: linear-gradient(180deg, var(--color-bg-tertiary), var(--color-bg-secondary));
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-4xl) 0 var(--spacing-2xl);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-brand {
    text-align: center;
}

@media (min-width: 768px) {
    .footer-brand {
        text-align: left;
    }
}

.footer-logo-img {
    height: 28px;
    width: auto;
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
}

.footer-links {
    display: flex;
    gap: var(--spacing-xl);
}

.footer-links a {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-text-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.footer-bottom p {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 640px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .section {
        padding: var(--spacing-lg) 0;
    }

    .section-header {
        margin-bottom: var(--spacing-lg);
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .award-highlight {
        padding: var(--spacing-2xl);
    }

    .mission-quote {
        font-size: var(--font-size-lg);
    }
}

/* --------------------------------------------------------------------------
   Print
   -------------------------------------------------------------------------- */
@media print {
    .nav,
    .scroll-indicator,
    .cta-section {
        display: none;
    }

    .section {
        padding: 2rem 0;
    }
}