/* ===================================
   TILLRUN Homepage - Main Styles
   Theme: The Intelligent Blueprint
   =================================== */

/* CSS Variables - Dark Mode Color Palette */
:root {
    /* Background Colors */
    --color-bg-primary: #0a0e1a;
    --color-bg-secondary: #111827;
    --color-bg-tertiary: #1a2332;
    
    /* Accent Colors */
    --color-accent-cyan: #00d9ff;
    --color-accent-purple: #a855f7;
    --color-accent-blue: #3b82f6;
    
    /* Text Colors */
    --color-text-primary: #f9fafb;
    --color-text-secondary: #d1d5db;
    --color-text-muted: #9ca3af;
    
    /* Gradient */
    --gradient-primary: linear-gradient(135deg, #00d9ff 0%, #a855f7 100%);
    --gradient-secondary: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 3rem;
    --font-size-4xl: 4rem;
    
    /* Effects */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 20px rgba(0, 217, 255, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

.section-title {
    color: var(--color-text-primary);
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* Buttons */
.btn-primary,
.btn-secondary,
.btn-hero {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    font-size: var(--font-size-base);
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 217, 255, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--color-accent-cyan);
    border: 2px solid var(--color-accent-cyan);
}

.btn-secondary:hover {
    background: var(--color-accent-cyan);
    color: var(--color-bg-primary);
}

.btn-hero {
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    padding: 1.25rem 3rem;
    font-size: var(--font-size-lg);
    box-shadow: var(--shadow-glow);
}

.btn-hero:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 0 40px rgba(0, 217, 255, 0.6);
}

/* ===================================
   GNB (Global Navigation Bar)
   =================================== */
.gnb {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 26, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
}

.gnb.scrolled {
    background: rgba(10, 14, 26, 0.95);
    box-shadow: var(--shadow-lg);
}

.gnb-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 0;
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-img {
    height: 28px;
    width: auto;
    transition: all var(--transition-base);
}

/* Footer logo should match header logo size */
.footer-logo-img {
    height: 28px;
    width: auto;
    transition: all var(--transition-base);
}

.logo-img:hover {
    filter: brightness(1.1);
    transform: scale(1.05);
}

.menu {
    display: flex;
    gap: var(--spacing-md);
}

.menu-item {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-sm);
    letter-spacing: 0.05em;
    position: relative;
    padding: 0.5rem 0;
    transition: color var(--transition-base);
}

.menu-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

.menu-item:hover {
    color: var(--color-text-primary);
}

.menu-item:hover::after {
    width: 100%;
    box-shadow: 0 0 10px var(--color-accent-cyan);
}

.mobile-menu-toggle {
    display: none;
    font-size: var(--font-size-xl);
    color: var(--color-text-primary);
    cursor: pointer;
}

/* ===================================
   Hero Section
   =================================== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

#heroCanvas {
    width: 100%;
    height: 100%;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.gradient-text {
    color: var(--color-text-primary);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.accent {
    color: var(--color-accent-cyan);
    font-weight: 600;
}

.hero-cta {
    margin-top: var(--spacing-lg);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.scroll-arrow {
    width: 30px;
    height: 50px;
    border: 2px solid var(--color-accent-cyan);
    border-radius: 20px;
    position: relative;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--color-accent-cyan);
    border-radius: 50%;
    animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
    0%, 100% {
        top: 10px;
        opacity: 1;
    }
    50% {
        top: 25px;
        opacity: 0.5;
    }
}

/* ===================================
   Narrative Section
   =================================== */
.narrative-section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.narrative-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.narrative-background {
    position: absolute;
    top: -50px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.1;
    font-size: var(--font-size-2xl);
    white-space: nowrap;
}

.connection-diagram {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-accent-cyan);
    font-weight: 700;
}

.connector {
    font-size: var(--font-size-3xl);
}

.narrative-text {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.highlight {
    color: var(--color-accent-cyan);
    font-weight: 700;
}

/* Footnote style used in page content */
.footnote {
    display: block;
    width: 100%;
    text-align: right;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    /* pull closer to the box above */
    margin-top: -1rem;
    margin-bottom: 0.4rem;
}

@media (max-width: 768px) {
    .footnote {
        font-size: var(--font-size-xs);
    }
}

/* Vision AI demo styles */
.vision-demo {
    position: relative;
    width: 100%;
    max-width: 820px;
    margin: 1.25rem auto 1rem auto;
    border-radius: 0.75rem;
    overflow: hidden;
    background: linear-gradient(180deg, rgba(10,14,26,0.6), rgba(10,14,26,0.4));
    box-shadow: 0 8px 30px rgba(0,0,0,0.45);
}
.vision-image {
    display: block;
    width: 100%;
    height: auto;
    object-fit: cover;
    vertical-align: middle;
}
.vision-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
}
.vision-overlay .bbox {
    position: absolute;
    border: 2px solid rgba(0,217,255,0.95);
    box-shadow: 0 6px 18px rgba(0,217,255,0.06), 0 0 10px rgba(0,217,255,0.06) inset;
    border-radius: 6px;
    backdrop-filter: blur(2px);
    transform-origin: center;
    opacity: 0;
    animation: bboxFadeIn 0.6s ease forwards;
}
.vision-overlay .bbox.pulse {
    animation: bboxPulse 2.2s ease-in-out infinite;
}
.vision-overlay .bbox-label {
    position: absolute;
    top: -2.25rem;
    right: 0.25rem;
    background: rgba(0, 217, 255, 0.08);
    color: var(--color-accent-cyan);
    padding: 6px 10px;
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: 999px;
    border: 1px solid rgba(0,217,255,0.12);
    box-shadow: 0 6px 18px rgba(0,217,255,0.04);
    text-shadow: 0 1px 0 rgba(0,0,0,0.25);
}

@keyframes bboxFadeIn {
    from { opacity: 0; transform: translateY(6px) scale(0.995); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes bboxPulse {
    0% { box-shadow: 0 6px 18px rgba(0,217,255,0.06); }
    50% { box-shadow: 0 10px 28px rgba(0,217,255,0.12); }
    100% { box-shadow: 0 6px 18px rgba(0,217,255,0.06); }
}

@media (max-width: 768px) {
    .vision-demo { max-width: 100%; margin: 0.75rem auto; }
    .vision-overlay .bbox-label { font-size: 0.75rem; top: -1.9rem; }
}

/* ===================================
   CORE Section
   =================================== */
.core-section {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg-secondary);
    position: relative;
}

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

.core-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.core-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.core-brain {
    position: relative;
    width: 400px;
    height: 400px;
}

#coreCanvas {
    width: 100%;
    height: 100%;
}

.core-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.pulse-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    border: 2px solid var(--color-accent-cyan);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.5;
    }
}

.core-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    box-shadow: var(--shadow-glow);
}

.core-modules {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.core-module {
    background: var(--color-bg-tertiary);
    padding: var(--spacing-md);
    border-radius: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.core-module:hover {
    border-color: var(--color-accent-cyan);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.2);
    transform: translateY(-5px);
}

.module-icon {
    width: 60px;
    height: 60px;
    background: rgba(0, 217, 255, 0.1);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: var(--color-accent-cyan);
    margin-bottom: var(--spacing-sm);
}

.core-module h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.core-module p {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.module-animation {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-slow);
}

.core-module:hover .module-animation {
    transform: scaleX(1);
}

/* ===================================
   BUILD Section
   =================================== */
.build-section {
    padding: var(--spacing-xl) 0;
}

.platform-tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.tab-button {
    padding: 0.75rem 1.5rem;
    background: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-base);
}

.tab-button:hover {
    border-color: var(--color-accent-cyan);
    color: var(--color-text-primary);
}

.tab-button.active {
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

.platform-content {
    position: relative;
    min-height: 500px;
}

.platform-panel {
    display: none;
    animation: fadeIn var(--transition-slow);
}

.platform-panel.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.platform-dashboard {
    background: var(--color-bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    padding: var(--spacing-lg);
}

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

.dashboard-header h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xs);
}

.dashboard-header p {
    color: var(--color-text-secondary);
}

.dashboard-preview {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-md);
}

.dashboard-widget {
    background: var(--color-bg-tertiary);
    padding: var(--spacing-md);
    border-radius: 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.widget-title {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.widget-graph {
    height: 200px;
    background: linear-gradient(180deg, rgba(0, 217, 255, 0.1) 0%, transparent 100%);
    border-radius: 0.5rem;
    position: relative;
}

.widget-graph::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
}

.widget-metrics {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.metric {
    display: flex;
    flex-direction: column;
}

.metric span:first-child {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-accent-cyan);
}

.metric span:last-child {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* ===================================
   APPLY & CASE Section
   =================================== */
.apply-section {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg-secondary);
}

.industry-filters {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-btn:hover {
    border-color: var(--color-accent-cyan);
    color: var(--color-text-primary);
}

.filter-btn.active {
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    border-color: transparent;
}

.cases-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.case-item {
    position: relative;
    height: 300px;
    border-radius: 1rem;
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--transition-base);
}

.case-item:hover {
    transform: scale(1.02);
}

.case-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-bg-tertiary) 0%, var(--color-bg-secondary) 100%);
}

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 0%, rgba(10, 14, 26, 0.9) 100%);
}

.case-content {
    position: relative;
    height: 100%;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    z-index: 1;
}

.case-industry {
    font-size: var(--font-size-sm);
    color: var(--color-accent-cyan);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.case-metric {
    margin-bottom: var(--spacing-sm);
}

.metric-number {
    font-size: var(--font-size-3xl);
    font-weight: 900;
    color: var(--color-text-primary);
    display: block;
    line-height: 1;
}

.metric-label {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
}

.case-description {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* ===================================
   INSIGHTS Section
   =================================== */
.insights-section {
    padding: var(--spacing-xl) 0;
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.insight-card {
    background: var(--color-bg-secondary);
    border-radius: 1rem;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
    cursor: pointer;
}

.insight-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border-color: var(--color-accent-cyan);
}

.card-image {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, var(--color-bg-tertiary) 0%, var(--color-bg-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-placeholder {
    font-size: var(--font-size-3xl);
    color: var(--color-accent-cyan);
    opacity: 0.3;
}

.card-category {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
}

.card-content {
    padding: var(--spacing-md);
}

.card-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.card-excerpt {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.card-meta {
    display: flex;
    justify-content: space-between;
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
}

.insights-cta {
    text-align: center;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--color-bg-secondary);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-column h3,
.footer-column h4 {
    margin-bottom: var(--spacing-sm);
}

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

/* Apply gradient clipping only when supported to keep fallbacks visible */
@supports (-webkit-background-clip: text) {
    .gradient-text,
    .section-title,
    .footer-title {
        background: var(--gradient-primary);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
}

.footer-description {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--color-bg-tertiary);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.social-links a:hover {
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    transform: translateY(-2px);
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 0.75rem;
}

.footer-column ul li a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color var(--transition-base);
}

.footer-column ul li a:hover {
    color: var(--color-accent-cyan);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-xs);
}

.newsletter-form input {
    flex: 1;
    padding: 0.75rem;
    background: var(--color-bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--color-accent-cyan);
}

.newsletter-form button {
    padding: 0.75rem 1.5rem;
    background: var(--gradient-primary);
    border: none;
    border-radius: 0.5rem;
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.newsletter-form button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

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

.footer-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-accent-cyan);
}

/* ===================================
   Modal
   =================================== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--color-bg-secondary);
    margin: 5% auto;
    padding: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    width: 90%;
    max-width: 600px;
    position: relative;
}

.close {
    color: var(--color-text-muted);
    float: right;
    font-size: var(--font-size-2xl);
    font-weight: bold;
    cursor: pointer;
    transition: color var(--transition-base);
}

.close:hover {
    color: var(--color-accent-cyan);
}

.contact-form {
    margin-top: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--color-bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-cyan);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .core-content {
        grid-template-columns: 1fr;
    }
    
    .core-brain {
        width: 300px;
        height: 300px;
    }
    
    .dashboard-preview {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .menu {
        display: none;
    }
    .menu.active {
        display: block;
        right: 0;
        position: absolute;
        top: 76px;
        padding: 10px;
        background-color: black;
        border-radius: 10px;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .logo-img {
        height: 24px;
    }
    .footer-logo-img {
        height: 24px;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .core-modules {
        grid-template-columns: 1fr 1fr;
    }
    
    .cases-container {
        grid-template-columns: 1fr;
    }
    
    .insights-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-4xl: 2.5rem;
        --font-size-3xl: 2rem;
        --font-size-2xl: 1.5rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .logo-img {
        height: 24px;
    }
    
    .core-modules {
        grid-template-columns: 1fr;
    }
    
    .platform-tabs {
        flex-direction: column;
    }
    
    .industry-filters {
        flex-direction: column;
    }
}