/* =====================================================
   coldbrewjp - Premium Landing Page
   Main Stylesheet
   ===================================================== */

/* =====================================================
   CSS CUSTOM PROPERTIES
   ===================================================== */
:root {
    /* Colors */
    --color-bg: #fafafa;
    --color-bg-alt: #f5f5f5;
    --color-text: #111111;
    --color-text-secondary: #666666;
    --color-text-muted: #999999;
    --color-accent: #45e3c6;
    --color-accent-dark: #3bc4a8;
    --color-white: #ffffff;
    --color-black: #111111;
    --color-border: #e8e8e8;
    --color-border-light: #f0f0f0;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 64px;
    --spacing-2xl: 120px;

    /* Typography */
    --font-family:
        "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    --font-size-2xl: 32px;
    --font-size-3xl: 48px;
    --font-size-4xl: 64px;
    --font-size-5xl: 80px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 32px 96px rgba(0, 0, 0, 0.16);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

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

html {
    scroll-behavior: smooth;
}

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

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

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

ul {
    list-style: none;
}

img {
    max-width: calc(100% + 40px);
    margin-left: -20px;
    height: auto;
}

/* =====================================================
   TYPOGRAPHY
   ===================================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: var(--font-size-5xl);
}
h2 {
    font-size: var(--font-size-3xl);
}
h3 {
    font-size: var(--font-size-2xl);
}
h4 {
    font-size: var(--font-size-xl);
}
h5 {
    font-size: var(--font-size-lg);
}
h6 {
    font-size: var(--font-size-base);
}

/* =====================================================
   NAVBAR
   ===================================================== */
.navbar {
    padding: 12px 0;
    transition:
        background-color var(--transition-base),
        box-shadow var(--transition-base);
}

.navbar.scrolled {
    background-color: rgba(250, 250, 250, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
}

.navbar-brand {
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--color-text);
    letter-spacing: -0.03em;
}

.logo-text {
    background: linear-gradient(
        135deg,
        var(--color-text) 0%,
        var(--color-accent) 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-img {
    height: 100px;
    width: auto;
    transition: transform var(--transition-base);
}

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

.navbar-nav {
    gap: var(--spacing-md);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast);
}

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

.navbar-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 14px 28px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-black);
}

.btn-primary:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline-primary {
    border: 2px solid var(--color-border);
    color: var(--color-text);
}

.btn-outline-primary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background-color: transparent;
}

.btn-lg {
    padding: 16px 36px;
    font-size: var(--font-size-base);
}

.btn svg {
    width: 20px;
    height: 20px;
}

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero-section {
    min-height: 100vh;
    padding-top: 82px;
    padding-bottom: var(--spacing-2xl);
    position: relative;
}

.hero-content {
    padding-right: var(--spacing-xl);
}

.hero-title {
    font-size: clamp(48px, 6vw, 80px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.04em;
    margin-bottom: var(--spacing-md);
}

.hero-text {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
    max-width: 520px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* =====================================================
   DASHBOARD MOCKUP
   ===================================================== */
.hero-visual {
    position: relative;
}

.dashboard-mockup {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    border: 1px solid var(--color-border-light);
}

.mockup-header {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border-light);
    gap: var(--spacing-sm);
}

.mockup-dots {
    display: flex;
    gap: 6px;
}

.mockup-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--color-border);
}

.mockup-dots span:nth-child(1) {
    background-color: #ff5f57;
}
.mockup-dots span:nth-child(2) {
    background-color: #febc2e;
}
.mockup-dots span:nth-child(3) {
    background-color: #28c840;
}

.mockup-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
}

.mockup-body {
    padding: var(--spacing-md);
}

.mockup-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.stat-card {
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    text-align: center;
}

.stat-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-xs);
}

.stat-icon.reward-icon {
    background-color: rgba(69, 227, 198, 0.15);
    color: var(--color-accent);
}

.stat-icon.penalty-icon {
    background-color: rgba(255, 95, 87, 0.15);
    color: #ff5f57;
}

.stat-icon.students-icon {
    background-color: rgba(102, 126, 234, 0.15);
    color: #667eea;
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    margin-bottom: 4px;
}

.stat-value {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text);
}

/* Leaderboard */
.mockup-leaderboard {
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.leaderboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.badge-accent {
    background-color: var(--color-accent);
    color: var(--color-black);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.leaderboard-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
}

.rank {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 700;
    background: var(--color-border);
}

.rank.rank-1 {
    background: linear-gradient(135deg, #ffd700, #ffa500);
    color: white;
}

.rank.rank-2 {
    background: linear-gradient(135deg, #c0c0c0, #808080);
    color: white;
}

.rank.rank-3 {
    background: linear-gradient(135deg, #cd7f32, #8b4513);
    color: white;
}

.student-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex: 1;
}

.student-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: linear-gradient(
        135deg,
        var(--color-accent),
        var(--color-accent-dark)
    );
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-black);
}

.student-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
}

.student-class {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.student-points {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--color-accent-dark);
}

/* Action Buttons */
.mockup-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.action-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 12px;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.action-btn.reward-btn {
    background-color: var(--color-accent);
    color: var(--color-black);
}

.action-btn.penalty-btn {
    background-color: var(--color-bg-alt);
    color: var(--color-text);
}

.action-btn:hover {
    transform: translateY(-2px);
}

/* Chart */
.mockup-chart {
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
}

.chart-header {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.chart-bars {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    height: 80px;
    margin-bottom: var(--spacing-xs);
}

.chart-bar {
    flex: 1;
    margin: 0 4px;
    background: linear-gradient(
        180deg,
        var(--color-accent),
        var(--color-accent-dark)
    );
    border-radius: 4px 4px 0 0;
    transition: height var(--transition-slow);
}

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

/* =====================================================
   HERO IMAGE WRAPPER
   ===================================================== */
.hero-image-wrapper {
    position: relative;
}

.hero-image {
    width: calc(100% + 40px);
    margin-left: -20px;
    height: auto;
    display: block;
}

/* =====================================================
   PRICING
   ===================================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-tag {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.03em;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* =====================================================
   FEATURES SECTION
   ===================================================== */
.features-section {
    padding: var(--spacing-2xl) 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border-light);
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(
        135deg,
        rgba(69, 227, 198, 0.15),
        rgba(69, 227, 198, 0.05)
    );
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* =====================================================
   STATS / DASHBOARD SECTION
   ===================================================== */
.stats-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-bg-alt);
}

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

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

.stats-row:nth-child(2) {
    grid-template-columns: 1fr 1fr;
}

.stat-card-large,
.stat-card-small,
.top-students-card,
.activity-timeline-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border-light);
}

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.stat-header h4 {
    font-size: var(--font-size-lg);
}

.stat-period {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.view-all {
    font-size: var(--font-size-sm);
    color: var(--color-accent);
    font-weight: 600;
}

.live-badge {
    background: linear-gradient(135deg, #ff5f57, #ff3b30);
    color: white;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* Line Chart */
.line-chart {
    height: 200px;
    margin-bottom: var(--spacing-sm);
}

.chart-svg {
    width: calc(100% + 40px);
    margin-left: -20px;
    height: 100%;
}

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

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.legend-dot.accent {
    background-color: var(--color-accent);
}
.legend-dot.dark {
    background-color: var(--color-black);
}
.legend-dot.light {
    background-color: var(--color-border);
}

/* Pie Chart */
.pie-chart {
    position: relative;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pie-svg {
    width: calc(100% + 40px);
    margin-left: -20px;
    height: 100%;
}

.pie-label {
    position: absolute;
    text-align: center;
}

.pie-value {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text);
}

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

.pie-legend {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

/* Top Students */
.top-students-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.top-student-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    background: var(--color-bg-alt);
    transition: background var(--transition-fast);
}

.top-student-item:hover {
    background: var(--color-border-light);
}

.top-rank {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    background: var(--color-accent);
    color: var(--color-black);
}

.top-avatar {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
}

.top-info {
    flex: 1;
}

.top-name {
    font-weight: 600;
    color: var(--color-text);
}

.top-class {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.top-score {
    font-weight: 700;
    color: var(--color-accent-dark);
}

/* Activity Timeline */
.activity-timeline {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.activity-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    background: var(--color-bg-alt);
}

.activity-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.activity-dot.reward {
    background-color: var(--color-accent);
}
.activity-dot.penalty {
    background-color: #ff5f57;
}
.activity-dot.milestone {
    background: linear-gradient(135deg, #ffd700, #ffa500);
}

.activity-content {
    flex: 1;
}

.activity-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
}

.activity-time {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.activity-value {
    font-weight: 700;
    color: var(--color-accent-dark);
}

.activity-negative {
    color: #ff5f57;
}

.activity-icon {
    font-size: var(--font-size-lg);
}

/* =====================================================
   WORKFLOW SECTION
   ===================================================== */
.workflow-section {
    padding: var(--spacing-2xl) 0;
}

.workflow-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.workflow-step {
    flex: 1;
    max-width: 300px;
    text-align: center;
}

.step-number {
    font-size: var(--font-size-5xl);
    font-weight: 900;
    color: var(--color-border);
    margin-bottom: var(--spacing-md);
    -webkit-text-stroke: 2px var(--color-border);
    color: transparent;
}

.step-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
}

.workflow-step h3 {
    margin-bottom: var(--spacing-sm);
}

.workflow-step p {
    color: var(--color-text-secondary);
}

.workflow-arrow {
    color: var(--color-accent);
    flex-shrink: 0;
}

/* =====================================================
   TESTIMONIALS SECTION
   ===================================================== */
.testimonials-section {
    padding: var(--spacing-2xl) 0;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.testimonial-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border-light);
    transition: all var(--transition-base);
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.testimonial-content {
    margin-bottom: var(--spacing-md);
}

.testimonial-rating {
    display: flex;
    gap: 4px;
    margin-bottom: var(--spacing-sm);
}

.testimonial-text {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    font-size: var(--font-size-sm);
}

.author-name {
    font-weight: 600;
    color: var(--color-text);
}

.author-role {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* =====================================================
   PRICING SECTION
   ===================================================== */
.pricing-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-bg-alt);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border-light);
    position: relative;
    transition: all var(--transition-base);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.pricing-popular {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(69, 227, 198, 0.15);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(
        135deg,
        var(--color-accent),
        var(--color-accent-dark)
    );
    color: var(--color-black);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

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

.pricing-desc {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.pricing-price {
    margin: var(--spacing-md) 0;
}

.price-currency {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--color-text-secondary);
}

.price-value {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    color: var(--color-text);
}

.price-value.custom {
    font-size: var(--font-size-2xl);
}

.price-period {
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
}

.pricing-features {
    margin-bottom: var(--spacing-lg);
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    color: var(--color-text-secondary);
}

.pricing-features li svg {
    flex-shrink: 0;
}

.pricing-cta {
    width: calc(100% + 40px);
    margin-left: -20px;
}

/* =====================================================
   CTA SECTION
   ===================================================== */
.cta-section {
    padding: var(--spacing-2xl) 0;
}

.cta-card {
    background: linear-gradient(
        135deg,
        var(--color-accent),
        var(--color-accent-dark)
    );
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
    color: var(--color-black);
}

.cta-card h2 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-black);
}

.cta-card p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-card .btn-primary {
    background: var(--color-black);
    color: var(--color-white);
}

.cta-card .btn-outline-primary {
    border-color: var(--color-black);
    color: var(--color-black);
}

.cta-card .btn-outline-primary:hover {
    background: rgba(0, 0, 0, 0.1);
    color: var(--color-black);
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    background-color: var(--color-bg-alt);
    border-top: 1px solid var(--color-border-light);
}

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

.footer-brand {
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.footer-logo-img {
    height: 96px;
    width: auto;
    margin-bottom: var(--spacing-sm);
}

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

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.footer-column h4 {
    font-size: var(--font-size-sm);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-column a {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    padding: 6px 0;
    transition: color var(--transition-fast);
}

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

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

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */
@media (max-width: 992px) {
    .hero-content {
        padding-right: 0;
        margin-bottom: var(--spacing-lg);
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .stats-row {
        grid-template-columns: 1fr;
    }

    .workflow-steps {
        flex-direction: column;
    }

    .workflow-arrow {
        transform: rotate(90deg);
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-2xl: 80px;
        --spacing-xl: 48px;
    }

    .navbar {
        padding: 8px 0;
    }

    .navbar-buttons {
        display: none;
    }

    .hero-section {
        padding-top: 62px;
    }

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

    .hero-text {
        font-size: var(--font-size-base);
    }

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

    .features-grid,
    .testimonials-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .mockup-stats {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        width: calc(100% + 40px);
        margin-left: -20px;
    }

    .hero-buttons .btn {
        width: calc(100% + 40px);
        margin-left: -20px;
    }

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

/* =====================================================
   UTILITY CLASSES
   ===================================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

.text-center {
    text-align: center;
}
.text-muted {
    color: var(--color-text-muted);
}
.mt-1 {
    margin-top: var(--spacing-xs);
}
.mt-2 {
    margin-top: var(--spacing-sm);
}
.mt-3 {
    margin-top: var(--spacing-md);
}
.mb-1 {
    margin-bottom: var(--spacing-xs);
}
.mb-2 {
    margin-bottom: var(--spacing-sm);
}
.mb-3 {
    margin-bottom: var(--spacing-md);
}
.me-3 {
    margin-right: var(--spacing-md);
}
.gap-2 {
    gap: var(--spacing-sm);
}
.gap-3 {
    gap: var(--spacing-md);
}

/* =====================================================
   ACCESSIBILITY
   ===================================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    z-index: 9999;
}

.skip-link:focus {
    top: 0;
}