/* ================================================
   ThreadHaven Case Study - Premium Design System
   ================================================ */

/* CSS Custom Properties */
:root {
    /* Colors */
    --black: #0a0a0a;
    --black-light: #141414;
    --black-lighter: #1a1a1a;
    --white: #ffffff;
    --white-dim: #f5f5f5;
    --gray: #888888;
    --gray-dark: #444444;
    --gold: #d4af37;
    --gold-light: #e8c252;
    --gold-dark: #b8962e;
    --gold-glow: rgba(212, 175, 55, 0.3);
    
    /* Gradients */
    --gradient-gold: linear-gradient(135deg, #d4af37 0%, #f4e3a1 50%, #d4af37 100%);
    --gradient-dark: linear-gradient(180deg, #0a0a0a 0%, #1a1a1a 100%);
    --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 100%);
    
    /* Spacing */
    --section-padding: 120px;
    --container-max: 1200px;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    /* Effects */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --shadow-soft: 0 4px 30px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(212, 175, 55, 0.15);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

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

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

/* Particle Canvas */
#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.6;
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
    z-index: 1;
}

/* Typography Utilities */
.gradient-text {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gold {
    color: var(--gold);
}

.large-text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--white-dim);
}

.centered {
    text-align: center;
}

/* ================================================
   Header (Contact Page Style)
   ================================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 12px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: transparent;
    transition: var(--transition-smooth);
}

.header.scrolled {
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

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

.logo-link img {
    height: 100px;
    width: auto;
    transition: transform 0.3s ease;
}

.logo-link:hover img {
    transform: scale(1.05);
}

.back-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 10px 20px;
    border-radius: 50px;
    border: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.back-btn:hover {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.back-btn svg {
    width: 16px;
    height: 16px;
    transition: transform 0.3s ease;
}

.back-btn:hover svg {
    transform: translateX(-4px);
}

/* Legacy Nav (kept for compatibility) */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    background: linear-gradient(180deg, rgba(10,10,10,0.95) 0%, rgba(10,10,10,0) 100%);
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    text-decoration: none;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--white);
    letter-spacing: 0.02em;
}

.nav-back {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.nav-back:hover {
    color: var(--gold);
}

.nav-back svg {
    transition: transform var(--transition-fast);
}

.nav-back:hover svg {
    transform: translateX(-4px);
}

/* ================================================
   Hero Section
   ================================================ */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
    padding: 140px 40px 100px;
    max-width: var(--container-max);
    margin: 0 auto;
    position: relative;
}

.hero-bg-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 80% 20%, rgba(212, 175, 55, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 20% 80%, rgba(212, 175, 55, 0.05) 0%, transparent 40%);
    pointer-events: none;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    padding: 10px 20px;
    font-size: 0.85rem;
    color: var(--gold);
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.badge-icon {
    font-size: 1rem;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 3.2rem;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.highlight-stat {
    color: var(--gold);
    position: relative;
}

.highlight-stat::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gold);
    opacity: 0.3;
    border-radius: 2px;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 540px;
}

.hero-stats {
    display: flex;
    gap: 24px;
    margin-bottom: 40px;
}

.stat-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 20px 28px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: var(--transition-smooth);
}

.stat-card:hover {
    border-color: var(--gold);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

.stat-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--gold);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--gradient-gold);
    color: var(--black);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    padding: 16px 32px;
    border-radius: 12px;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3);
}

.hero-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.4);
}

.hero-cta svg {
    transition: transform var(--transition-fast);
}

.hero-cta:hover svg {
    transform: translateX(4px);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
}

.visual-glow {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--gold-glow) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(60px);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.7; }
}

.phone-mockup {
    position: relative;
    width: 320px;
    height: 640px;
    background: var(--black-lighter);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-soft),
                inset 0 0 0 2px rgba(255,255,255,0.1);
    overflow: hidden;
}

.mockup-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 28px;
}

.floating-tag {
    position: absolute;
    background: var(--glass-bg);
    border: 1px solid var(--gold);
    color: var(--gold);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
    white-space: nowrap;
    animation: float 3s ease-in-out infinite;
}

.tag-1 {
    top: 15%;
    right: -60px;
    animation-delay: 0s;
}

.tag-2 {
    top: 45%;
    left: -70px;
    animation-delay: 1s;
}

.tag-3 {
    bottom: 20%;
    right: -50px;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* ================================================
   Sections Common
   ================================================ */
.section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header.left-aligned {
    text-align: left;
}

.section-label {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-display);
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.subsection-title {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 24px;
    text-align: center;
}

/* ================================================
   Challenge Section
   ================================================ */
.challenge {
    background: linear-gradient(180deg, var(--black) 0%, var(--black-light) 100%);
}

.challenge-intro {
    max-width: 800px;
    margin: 0 auto 60px;
    text-align: center;
}

.pain-points {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.pain-card {
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 40px 30px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: var(--transition-smooth);
}

.pain-card:hover {
    border-color: rgba(212, 175, 55, 0.3);
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
}

.pain-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(212, 175, 55, 0.1);
    border-radius: 16px;
    margin: 0 auto 20px;
    color: var(--gold);
}

.pain-stat {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--gold);
    margin-bottom: 8px;
}

.pain-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 12px;
}

.pain-desc {
    font-size: 0.9rem;
    color: var(--gray);
    line-height: 1.6;
}

/* Quote Block */
.quote-block {
    max-width: 800px;
    margin: 0 auto;
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    border-left: 4px solid var(--gold);
    border-radius: 16px;
    padding: 40px 50px;
    position: relative;
}

.quote-icon {
    font-family: var(--font-display);
    font-size: 5rem;
    color: var(--gold);
    opacity: 0.3;
    position: absolute;
    top: 10px;
    left: 30px;
    line-height: 1;
}

.quote-block blockquote {
    font-size: 1.2rem;
    font-style: italic;
    color: var(--white-dim);
    line-height: 1.8;
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}

.quote-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--black);
    font-size: 0.9rem;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-info strong {
    color: var(--white);
    font-weight: 600;
}

.author-info span {
    font-size: 0.85rem;
    color: var(--gray);
}

/* ================================================
   Solution Section
   ================================================ */
.solution {
    background: var(--black-light);
}

.solution-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.solution-content .large-text {
    margin-bottom: 30px;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 1rem;
    color: var(--white-dim);
}

.check-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: rgba(212, 175, 55, 0.2);
    color: var(--gold);
    border-radius: 50%;
    font-size: 0.8rem;
    flex-shrink: 0;
    margin-top: 2px;
}

/* AI Process Visual */
.solution-visual {
    display: flex;
    justify-content: center;
}

.ai-process {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 40px;
}

.process-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    text-align: center;
}

.step-icon {
    width: 64px;
    height: 64px;
    background: rgba(212, 175, 55, 0.1);
    border: 2px solid var(--gold);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    transition: var(--transition-smooth);
}

.process-step:hover .step-icon {
    background: var(--gold);
    transform: scale(1.1);
}

.process-step span {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gray);
}

.process-arrow {
    font-size: 1.5rem;
    color: var(--gold);
    opacity: 0.5;
}

/* Integration Section */
.integration-section {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 80px;
    padding: 40px;
    background: rgba(212, 175, 55, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 24px;
}

.integration-text {
    font-size: 1.1rem;
    color: var(--white-dim);
    line-height: 1.8;
}

/* Workflow Grid */
.workflow-grid {
    text-align: center;
}

.workflow-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.workflow-card {
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition-smooth);
}

.workflow-card:hover {
    border-color: var(--gold);
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
}

.workflow-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.workflow-card h4 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--white);
}

.workflow-card p {
    font-size: 0.9rem;
    color: var(--gray);
    line-height: 1.6;
}

/* ================================================
   Impact Section
   ================================================ */
.impact {
    background: linear-gradient(180deg, var(--black-light) 0%, var(--black) 100%);
}

.impact-hero {
    max-width: 800px;
    margin: 0 auto 60px;
}

/* Charts Container */
.charts-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.chart-card {
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 40px;
    position: relative;
}

.chart-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 30px;
    text-align: center;
    color: var(--white);
}

/* Bar Chart */
.bar-chart {
    display: flex;
    justify-content: center;
    gap: 60px;
    height: 250px;
    align-items: flex-end;
    padding-bottom: 40px;
}

.bar-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.bar-wrapper {
    height: 200px;
    width: 80px;
    display: flex;
    align-items: flex-end;
}

.bar {
    width: 100%;
    border-radius: 8px 8px 0 0;
    position: relative;
    transition: height 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.bar-before {
    background: linear-gradient(180deg, #ff6b6b 0%, #c92a2a 100%);
    height: 0;
}

.bar-after {
    background: var(--gradient-gold);
    height: 0;
}

.bar-label {
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    font-weight: 700;
    font-size: 1.1rem;
    white-space: nowrap;
}

.bar-category {
    font-size: 0.85rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.chart-callout {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid var(--gold);
    border-radius: 12px;
    padding: 12px 20px;
    text-align: center;
}

.callout-value {
    display: block;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gold);
}

.callout-label {
    font-size: 0.75rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Pie Chart */
.pie-chart-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.pie-chart {
    position: relative;
    width: 200px;
    height: 200px;
}

.pie-svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.pie-segment {
    fill: none;
    stroke-width: 20;
    stroke-linecap: round;
    transition: stroke-dasharray 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.segment-1 { stroke: var(--gold); }
.segment-2 { stroke: #c9a227; }
.segment-3 { stroke: #a88a20; }

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

.pie-total {
    display: block;
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--gold);
}

.pie-label {
    font-size: 0.75rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pie-legend {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--white-dim);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 3px;
}

.color-1 { background: var(--gold); }
.color-2 { background: #c9a227; }
.color-3 { background: #a88a20; }

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 80px;
}

.metric-card {
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition-smooth);
}

.metric-card:hover {
    border-color: var(--gold);
    transform: translateY(-4px);
}

.metric-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.metric-value {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gold);
    margin-bottom: 8px;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--gray);
}

/* Testimonial Card */
.testimonial-card {
    max-width: 900px;
    margin: 0 auto;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1) 0%, rgba(212, 175, 55, 0.02) 100%);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 32px;
    padding: 60px;
    position: relative;
    overflow: hidden;
}

.testimonial-glow {
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--gold-glow) 0%, transparent 70%);
    filter: blur(80px);
    pointer-events: none;
}

.testimonial-content {
    position: relative;
    z-index: 1;
}

.testimonial-quote {
    font-family: var(--font-display);
    font-size: 6rem;
    color: var(--gold);
    opacity: 0.2;
    line-height: 1;
    margin-bottom: -40px;
}

.testimonial-card blockquote {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 400;
    font-style: italic;
    line-height: 1.6;
    color: var(--white);
    margin-bottom: 32px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 20px;
}

.author-image {
    width: 60px;
    height: 60px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--black);
}

.author-details {
    display: flex;
    flex-direction: column;
}

.author-details strong {
    font-size: 1.1rem;
    color: var(--white);
}

.author-details span {
    font-size: 0.9rem;
    color: var(--gold);
}

/* ================================================
   Why Us Section
   ================================================ */
.why-us {
    background: var(--black);
    padding: 100px 0;
}

.why-us .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.why-text {
    font-size: 1.15rem;
    color: var(--white-dim);
    line-height: 1.8;
    margin-bottom: 16px;
}

.cta-text {
    font-size: 1.25rem;
    color: var(--gold);
    font-weight: 500;
    margin-bottom: 32px;
}

.demo-cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--gradient-gold);
    color: var(--black);
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    padding: 18px 40px;
    border-radius: 14px;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 25px rgba(212, 175, 55, 0.35);
}

.demo-cta:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 10px 40px rgba(212, 175, 55, 0.5);
}

.demo-cta svg {
    transition: transform var(--transition-fast);
}

.demo-cta:hover svg {
    transform: translateX(6px);
}

/* Service Cards */
.service-cards {
    display: grid;
    gap: 20px;
}

.service-card {
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 28px 32px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition-smooth);
}

.service-card:hover {
    border-color: var(--gold);
    transform: translateX(10px);
}

.service-icon {
    font-size: 2rem;
}

.service-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--white);
}

.service-card p {
    font-size: 0.85rem;
    color: var(--gray);
}

/* ================================================
   Footer
   ================================================ */
.footer {
    background: var(--black-lighter);
    border-top: 1px solid var(--glass-border);
    padding: 60px 0;
}

.footer-nav {
    margin-bottom: 40px;
}

.footer-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--gold);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

.footer-back:hover {
    color: var(--gold-light);
}

.footer-back:hover svg {
    transform: translateX(-4px);
}

.footer-back svg {
    transition: transform var(--transition-fast);
}

.footer-disclaimer {
    text-align: center;
    margin-bottom: 40px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
}

.footer-disclaimer p {
    font-size: 0.85rem;
    color: var(--gray);
    font-style: italic;
}

.related-studies {
    text-align: center;
    margin-bottom: 50px;
}

.related-label {
    display: block;
    font-size: 0.85rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 20px;
}

.related-links {
    display: flex;
    justify-content: center;
    gap: 30px;
}

.related-link {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 16px 24px;
    text-decoration: none;
    color: var(--white-dim);
    font-weight: 500;
    transition: var(--transition-smooth);
}

.related-link:hover {
    border-color: var(--gold);
    color: var(--gold);
    transform: translateY(-2px);
}

.related-icon {
    font-size: 1.2rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid var(--glass-border);
}

.footer-logo {
    margin-bottom: 12px;
}

.footer-logo .logo-text {
    font-size: 1.3rem;
}

.copyright {
    font-size: 0.85rem;
    color: var(--gray);
}

/* ================================================
   Responsive Design
   ================================================ */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 60px;
    }
    
    .hero-content {
        order: 1;
    }
    
    .hero-visual {
        order: 0;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .solution-hero {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .feature-list {
        align-items: center;
    }
    
    .why-us .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .section-header.left-aligned {
        text-align: center;
    }
}

@media (max-width: 900px) {
    .pain-points {
        grid-template-columns: 1fr;
    }
    
    .workflow-cards {
        grid-template-columns: 1fr;
    }
    
    .charts-container {
        grid-template-columns: 1fr;
    }
    
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 80px;
    }
    
    .container {
        padding: 0 24px;
    }
    
    .nav-container {
        padding: 0 24px;
    }
    
    .hero {
        padding: 120px 24px 80px;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .phone-mockup {
        width: 260px;
        height: 520px;
    }
    
    .floating-tag {
        display: none;
    }
    
    .quote-block {
        padding: 30px;
    }
    
    .quote-icon {
        font-size: 3rem;
        left: 20px;
    }
    
    .ai-process {
        flex-direction: column;
        padding: 30px;
    }
    
    .process-arrow {
        transform: rotate(90deg);
    }
    
    .testimonial-card {
        padding: 40px 30px;
    }
    
    .testimonial-card blockquote {
        font-size: 1.3rem;
    }
    
    .related-links {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    
    .bar-chart {
        gap: 40px;
    }
    
    .bar-wrapper {
        width: 60px;
    }
}

/* ================================================
   Animation Classes (for GSAP)
   ================================================ */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
}

.fade-in {
    opacity: 0;
}

.scale-in {
    opacity: 0;
    transform: scale(0.9);
}

.slide-left {
    opacity: 0;
    transform: translateX(-40px);
}

.slide-right {
    opacity: 0;
    transform: translateX(40px);
}