/* ============================================
   NEURAL GRID DESIGN SYSTEM
   Visual Concept: Research Notebook + Systems Diagram
   ============================================ */

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors - Vibrant Dynamic Palette */
    --color-bg: #0a0e27;
    --color-text: #ffffff;
    --color-text-secondary: #a0aec0;
    --color-border: #2d3748;
    --color-accent: #00d9ff;
    --color-accent-secondary: #ff006e;
    --color-accent-tertiary: #8338ec;
    --color-accent-subtle: rgba(0, 217, 255, 0.1);
    --color-signal: #ffbe0b;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-warm: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    
    /* Typography Scale */
    --font-serif: "Charter", "Georgia", "Cambria", serif;
    --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-mono: "SF Mono", "Cascadia Code", "Consolas", monospace;
    
    /* Spacing Grid (8px base) */
    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 48px;
    --space-xl: 96px;
    
    /* Grid System */
    --grid-margin: 32px;
    --grid-max: 1120px;
    --grid-annotation: 72px;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    position: relative;
    background-image: 
        radial-gradient(at 0% 0%, rgba(102, 126, 234, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(131, 56, 236, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(255, 0, 110, 0.1) 0px, transparent 50%),
        radial-gradient(at 0% 100%, rgba(0, 217, 255, 0.1) 0px, transparent 50%);
}

/* === SIGNAL PATH (Signature Feature) === */
.signal-path {
    position: fixed;
    top: 0;
    left: 0;
    width: 4px;
    height: 0%;
    background: linear-gradient(to bottom, var(--color-accent), var(--color-accent-secondary), var(--color-signal));
    z-index: 1000;
    transition: height 0.1s ease-out;
    box-shadow: 0 0 20px var(--color-accent);
}

/* === GRID ANNOTATIONS (Research Notebook Style) === */
.grid-annotation {
    position: absolute;
    left: calc(-1 * var(--grid-annotation));
    top: 0;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-text-secondary);
    letter-spacing: 0.05em;
    opacity: 0.4;
}

.annotation {
    position: absolute;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-text-secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.annotation.left {
    left: 0;
    top: -24px;
}

.annotation.right {
    right: 0;
    top: -24px;
}

/* === LAYOUT === */
.container {
    max-width: var(--grid-max);
    margin: 0 auto;
    padding: 0 var(--grid-margin);
    position: relative;
}

.section {
    position: relative;
    margin-bottom: var(--space-xl);
}

/* === HEADER === */
header {
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-lg) 0 var(--space-md);
    margin-bottom: var(--space-xl);
    position: relative;
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(10px);
}

.site-identity {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: var(--space-md);
}

.site-name {
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.site-status {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-indicator {
    width: 6px;
    height: 6px;
    background: var(--color-signal);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 0 0 10px var(--color-signal);
}

@keyframes pulse {
    0%, 100% { 
        opacity: 1;
        transform: scale(1);
    }
    50% { 
        opacity: 0.6;
        transform: scale(1.2);
    }
}

nav {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

nav a {
    font-size: 15px;
    color: var(--color-text-secondary);
    text-decoration: none;
    position: relative;
    transition: color 0.2s;
    padding: 4px 0;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

nav a:hover {
    color: var(--color-text);
}

nav a:hover::after,
nav a.active::after {
    width: 100%;
}

nav a.active {
    color: var(--color-text);
}

/* Center nav in header */
.header-inner {
    position: relative;
}

/* Keep identity at left, nav centered */
.site-identity {
    margin-bottom: 0; /* nav centering için boşluğu kaldır */
}

/* Nav: true centered */
header nav {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 50%;
    translate: 0 -50%;
    justify-content: center;
    flex-wrap: nowrap;
    gap: var(--space-lg);
}

/* Optional: prevent nav from pushing layout */
header nav a {
    white-space: nowrap;
}

@media (max-width: 760px) {
    header nav {
        position: static;
        transform: none;
        translate: none;
        margin-top: var(--space-md);
        flex-wrap: wrap;
        justify-content: flex-start;
        gap: var(--space-md);
    }

    .site-identity {
        margin-bottom: var(--space-md);
    }
}

/* === HERO === */
.hero {
    padding: var(--space-xl) 0;
    position: relative;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-xl);
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ffffff 0%, var(--color-accent) 50%, var(--color-accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--color-text-secondary);
    font-weight: 400;
}

/* === IDENTITY BLOCK === */
.identity-block {
    max-width: 800px;
}

.lead-text {
    font-size: 19px;
    line-height: 1.7;
    color: var(--color-text);
    font-weight: 400;
}

/* === LENS SELECTOR (Signature Feature) === */
.lens-selector {
    padding: var(--space-lg) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    background: rgba(0, 217, 255, 0.03);
}

.lens-controls {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.lens-btn {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.lens-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    transition: left 0.3s ease;
    z-index: -1;
}

.lens-btn:hover::before,
.lens-btn.active::before {
    left: 0;
}

.lens-btn:hover,
.lens-btn.active {
    border-color: var(--color-accent);
    color: var(--color-text);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 217, 255, 0.3);
}

.lens-btn.active {
    font-weight: 500;
}

/* === NOW SECTION (Signature Feature) === */
.now-section {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(131, 56, 236, 0.1) 100%);
    padding: var(--space-lg);
    border-left: 4px solid var(--color-accent);
    margin-bottom: var(--space-xl);
    position: relative;
    overflow: hidden;
}

.now-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 217, 255, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.now-label {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
    position: relative;
    z-index: 1;
}

.now-content {
    font-size: 17px;
    line-height: 1.7;
    color: var(--color-text);
    position: relative;
    z-index: 1;
}

.now-item {
    margin-bottom: var(--space-md);
}

.now-item:last-child {
    margin-bottom: 0;
}

.now-item strong {
    font-weight: 600;
}

/* === SECTION HEADINGS === */
.section-heading {
    font-family: var(--font-serif);
    font-size: 32px;
    font-weight: 400;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.01em;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* === PILLAR GRID === */
.pillar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-md);
}

.pillar-card {
    position: relative;
    padding: var(--space-lg);
    border: 1px solid var(--color-border);
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
    overflow: hidden;
}

.pillar-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.pillar-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(0, 217, 255, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.pillar-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0, 217, 255, 0.2);
}

.pillar-card:hover::before {
    transform: scaleX(1);
}

.pillar-card:hover::after {
    opacity: 1;
}

.pillar-number {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
    letter-spacing: 0.1em;
    position: relative;
    z-index: 1;
}

.pillar-title {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 400;
    margin-bottom: var(--space-sm);
    line-height: 1.3;
    position: relative;
    z-index: 1;
}

.pillar-description {
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    position: relative;
    z-index: 1;
}

.pillar-meta {
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    position: relative;
    z-index: 1;
}

/* === PROJECT CARDS === */
.project-card {
    position: relative;
    padding: var(--space-lg);
    border: 1px solid var(--color-border);
    margin-bottom: var(--space-lg);
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--gradient-accent);
    transition: height 0.3s ease;
}

.project-card:hover {
    border-color: var(--color-accent-secondary);
    transform: translateX(4px);
    box-shadow: 0 10px 40px rgba(255, 0, 110, 0.2);
}

.project-card:hover::before {
    height: 100%;
}

.project-meta {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-accent-secondary);
    margin-bottom: var(--space-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-title {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 400;
    margin-bottom: var(--space-lg);
    line-height: 1.3;
}

.project-section {
    margin-bottom: var(--space-md);
}

.section-label {
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
}

.project-section p {
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
}

.stack {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--color-accent);
}

/* === PUBLICATIONS === */
.publication {
    padding: var(--space-lg) 0;
    border-bottom: 1px solid var(--color-border);
}

.publication:last-child {
    border-bottom: none;
}

.pub-meta {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-text-secondary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pub-title {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 400;
    line-height: 1.4;
    margin-bottom: 12px;
}

.pub-venue {
    font-size: 15px;
    color: var(--color-text-secondary);
    margin-bottom: 12px;
}

.pub-link {
    font-size: 14px;
    color: var(--color-accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.pub-link:hover {
    border-bottom-color: var(--color-accent);
}

/* === RESEARCH TAGS === */
.research-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: var(--space-lg);
}

.research-tag {
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 8px 16px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2), rgba(131, 56, 236, 0.2));
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    border-radius: 20px;
    letter-spacing: 0.02em;
    transition: all 0.3s ease;
}

.research-tag:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

/* === MUSIC & CHESS === */
.content-card {
    padding: var(--space-lg);
    border: 1px solid var(--color-border);
    margin-bottom: var(--space-lg);
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.content-card:hover {
    border-color: var(--color-accent-tertiary);
    box-shadow: 0 10px 40px rgba(131, 56, 236, 0.2);
}

.card-label {
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent-tertiary);
    margin-bottom: var(--space-sm);
}

.card-title {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 400;
    margin-bottom: var(--space-sm);
}

.card-text {
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.audio-embed {
    height: 120px;
    background: linear-gradient(135deg, rgba(131, 56, 236, 0.2), rgba(0, 217, 255, 0.2));
    border: 1px solid var(--color-accent-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent-tertiary);
    font-family: var(--font-mono);
    font-size: 12px;
    backdrop-filter: blur(10px);
}

/* === NOTES === */
.note {
    padding: var(--space-lg) 0;
    border-bottom: 1px solid var(--color-border);
}

.note:last-child {
    border-bottom: none;
}

.note-date {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-text-secondary);
    margin-bottom: 12px;
    letter-spacing: 0.05em;
}

.note-title {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 400;
    margin-bottom: 12px;
    line-height: 1.3;
    cursor: pointer;
    transition: color 0.2s;
}

.note-title:hover {
    color: var(--color-accent);
}

.note-excerpt {
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.note-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.note-tag {
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 6px 12px;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.2), rgba(255, 190, 11, 0.2));
    color: var(--color-accent);
    letter-spacing: 0.02em;
    border: 1px solid var(--color-accent);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.note-tag:hover {
    background: var(--gradient-success);
    color: white;
    transform: scale(1.05);
}

/* === CONTACT === */
.contact-grid {
    display: grid;
    gap: var(--space-md);
    max-width: 600px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
}

.contact-item:hover {
    border-color: var(--color-signal);
    box-shadow: 0 10px 40px rgba(255, 190, 11, 0.2);
    transform: translateX(8px);
}

.contact-icon {
    width: 20px;
    height: 20px;
    color: var(--color-signal);
}

.contact-link {
    font-size: 16px;
    color: var(--color-text);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.contact-link:hover {
    border-bottom-color: var(--color-signal);
    color: var(--color-signal);
}

/* === FOOTER === */
footer {
    border-top: 1px solid var(--color-border);
    padding: var(--space-lg) 0;
    margin-top: var(--space-xl);
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(10px);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--color-text-secondary);
}

.footer-note {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.05em;
    color: var(--color-accent);
}

/* === UTILITY CLASSES === */
.margin-note {
    position: absolute;
    right: calc(100% + 32px);
    width: 200px;
    font-family: var(--font-mono);
    font-size: 11px;
    line-height: 1.5;
    color: var(--color-text-secondary);
    text-align: right;
}

/* === FEATURED MEDIA CARDS === */
.featured-media {
    margin-bottom: var(--space-xl);
}

.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.media-card {
    padding: var(--space-lg);
    border: 1px solid var(--color-border);
    text-decoration: none;
    color: var(--color-text);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.media-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.youtube-card::before {
    background: linear-gradient(135deg, rgba(255, 0, 0, 0.1), rgba(255, 0, 0, 0.05));
}

.medium-card::before {
    background: linear-gradient(135deg, rgba(0, 170, 85, 0.1), rgba(0, 170, 85, 0.05));
}

.soundcloud-card::before {
    background: linear-gradient(135deg, rgba(255, 85, 0, 0.1), rgba(255, 85, 0, 0.05));
}

.spotify-card::before {
    background: linear-gradient(135deg, rgba(30, 215, 96, 0.1), rgba(30, 215, 96, 0.05));
}

.media-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 217, 255, 0.3);
}

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

.media-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.youtube-card .media-icon { color: #ff0000; }
.medium-card .media-icon { color: #00aa55; }
.soundcloud-card .media-icon { color: #ff5500; }
.spotify-card .media-icon { color: #1ed760; }

.media-title {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    position: relative;
    z-index: 1;
}

.media-handle {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-text-secondary);
    position: relative;
    z-index: 1;
}

/* === VIDEO EMBED === */
.video-showcase {
    margin-bottom: var(--space-xl);
}

.video-embed {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 8px;
    margin: var(--space-lg) 0;
    border: 1px solid var(--color-border);
}

.video-embed iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* === MEDIUM HIGHLIGHTS === */
.medium-list {
    list-style: none;
    margin: var(--space-lg) 0;
}

.medium-list li {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

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

.medium-list a {
    color: var(--color-text);
    text-decoration: none;
    font-size: 16px;
    transition: color 0.2s;
    display: flex;
    align-items: center;
    gap: 12px;
}

.medium-list a::before {
    content: '→';
    color: var(--color-accent);
    font-size: 20px;
}

.medium-list a:hover {
    color: var(--color-accent);
}

/* === BUTTONS === */
.btn-secondary {
    display: inline-block;
    padding: 12px 32px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-accent);
    color: var(--color-accent);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 217, 255, 0.3);
}

/* === RESPONSIVE === */
@media (max-width: 1200px) {
    .margin-note {
        display: none;
    }
    
    .grid-annotation {
        display: none;
    }
}

@media (max-width: 768px) {
    :root {
        --grid-margin: 20px;
        --space-lg: 32px;
        --space-xl: 64px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .lead-text {
        font-size: 17px;
    }
    
    .pillar-grid {
        grid-template-columns: 1fr;
    }
    
    nav {
        gap: var(--space-sm);
    }
    
    .lens-controls {
        gap: 8px;
    }
    
    .lens-btn {
        font-size: 11px;
        padding: 8px 16px;
    }
    
    .annotation {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: var(--space-lg) 0;
    }
    
    .section-heading {
        font-size: 24px;
    }
    
    .now-section {
        padding: var(--space-md);
    }
}