/* Custom Properties / Variables */
:root {
    --color-bg: #0f172a;
    /* Deep Navy */
    --color-surface: #1e293b;
    /* Muted Blue */
    --color-surface-hover: #334155;
    --color-accent: #f59e0b;
    /* Accent Orange */
    --color-accent-hover: #d97706;
    --color-text: #f8fafc;
    /* Light string for contrast */
    --color-text-muted: #94a3b8;
    --color-border: rgba(255, 255, 255, 0.1);

    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-glow: 0 0 20px rgba(245, 158, 11, 0.3);

    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.text-accent {
    color: var(--color-accent);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    text-decoration: none;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 12px 24px;
    font-size: 1rem;
    border-radius: var(--radius-md);
}

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

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

.btn-secondary {
    background-color: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background-color: var(--color-surface-hover);
    border-color: var(--color-text-muted);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    background-color: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
    display: flex;
    align-items: center;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-accent);
}

.nav-links {
    display: none;
    gap: 32px;
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-muted);
}

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

/* Sections */
main {
    padding-top: 72px;
    /* For fixed navbar */
}

.section-bg {
    background-color: rgba(30, 41, 59, 0.3);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
    padding-top: 80px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* Hero Section */
.hero {
    padding: 80px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 64px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, rgba(15, 23, 42, 0) 70%);
    border-radius: 50%;
    z-index: -1;
    pointer-events: none;
}

@media (min-width: 1024px) {
    .hero {
        padding: 120px 24px;
    }
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--color-accent);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 3rem;
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 24px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 4.5rem;
    }
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 700px;
    margin: 0 auto 40px auto;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 1.25rem;
    }
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 16px;
    justify-content: center;
}

@media (min-width: 480px) {
    .hero-actions {
        flex-direction: row;
    }
}

/* Placeholder Graphic */
.hero-image-wrapper {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    perspective: 1000px;
}

.mock-browser {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    transform: rotateX(5deg) translateY(0);
    transition: transform 0.5s ease;
}

.mock-browser:hover {
    transform: rotateX(0deg) translateY(-10px);
}

.mock-browser-header {
    height: 48px;
    background-color: rgba(15, 23, 42, 0.5);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red {
    background-color: #ef4444;
}

.dot.yellow {
    background-color: #f59e0b;
}

.dot.green {
    background-color: #10b981;
}

.mock-browser-body {
    position: relative;
    height: 400px;
    background-color: #0f172a;
    color: #e2e8f0;
    background-image: linear-gradient(rgba(148, 163, 184, 0.08) 1px, transparent 1px), linear-gradient(90deg, rgba(148, 163, 184, 0.08) 1px, transparent 1px);
    background-size: 36px 36px;
}

.mock-website {
    padding: 28px 28px 32px;
    text-align: left;
    max-width: 60%;
    position: relative;
}

.mock-site-badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: var(--radius-full);
    background-color: rgba(245, 158, 11, 0.14);
    color: #fbbf24;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.mock-shortcut-list {
    margin-top: 22px;
    border-radius: 20px;
    border: 1px solid rgba(148, 163, 184, 0.14);
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.92), rgba(15, 23, 42, 0.98));
    overflow: hidden;
    box-shadow: 0 18px 40px -28px rgba(2, 6, 23, 0.9);
}

.mock-shortcut-row {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 64px;
    padding: 0 18px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.mock-shortcut-row:last-child {
    border-bottom: none;
}

.mock-shortcut-row.active {
    background-color: rgba(255, 255, 255, 0.02);
}

.mock-key {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 39px;
    height: 30px;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(148, 163, 184, 0.18);
    background: #0f172a;
    color: #f8fafc;
    font-size: 0.98rem;
    font-weight: 600;
    box-shadow: inset 0 -1px 0 rgba(255, 255, 255, 0.04);
}

.mock-key.accent {
    border-color: rgba(245, 158, 11, 0.8);
    box-shadow: 0 0 0 1px rgba(245, 158, 11, 0.14), inset 0 -1px 0 rgba(255, 255, 255, 0.04);
}

.mock-plus {
    color: #cbd5e1;
    font-weight: 700;
    font-size: 1.05rem;
}

.mock-inspector-card {
    position: absolute;
    top: 72px;
    left: 52px;
    width: 265px;
    border-radius: 16px;
    border: 1px solid rgba(148, 163, 184, 0.16);
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.98), rgba(15, 23, 42, 0.98));
    box-shadow: 0 30px 40px -28px rgba(2, 6, 23, 0.95);
    overflow: hidden;
}

.mock-inspector-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.mock-inspector-title {
    color: #f59e0b;
    font-size: 0.9rem;
    font-weight: 700;
}

.mock-inspector-size {
    color: #94a3b8;
    font-size: 0.8rem;
}

.mock-inspector-grid {
    display: grid;
    gap: 2px;
    padding: 10px 0;
}

.mock-inspector-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 8px 16px;
}

.mock-label {
    color: #94a3b8;
    font-size: 0.84rem;
}

.mock-value {
    color: #e2e8f0;
    font-size: 0.84rem;
    font-family: monospace;
    text-align: right;
}

.mock-extension-popup {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 280px;
    height: auto;
    display: block;
    overflow: hidden;
    background-color: var(--color-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    color: var(--color-text);
}

@media (max-width: 900px) {
    .mock-website {
        max-width: 100%;
        padding: 32px;
    }

    .mock-inspector-card {
        position: relative;
        top: auto;
        left: auto;
        width: 100%;
        max-width: 320px;
        margin-top: 20px;
    }
}

.popup-header {
    padding: 16px;
    border-bottom: 1px solid var(--color-border);
    font-weight: 600;
}

.popup-body {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.toggle-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
}

/* Toggle Switch UI */
.toggle-switch {
    width: 44px;
    height: 24px;
    background-color: var(--color-surface-hover);
    border-radius: 12px;
    position: relative;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background-color: white;
    border-radius: 50%;
    transition: transform var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.toggle-switch.active {
    background-color: var(--color-accent);
}

.toggle-switch.active::after {
    transform: translateX(20px);
}

/* Feature Grid */
.features {
    padding-bottom: 80px;
}

.feature-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

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

    .feature-grid .feature-card:first-child {
        grid-column: span 2;
    }
}

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

    .feature-grid .feature-card:first-child {
        grid-column: span 2;
    }
}

.feature-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(245, 158, 11, 0.3);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--color-accent);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    flex-grow: 1;
}

.feature-shortcut {
    position: absolute;
    top: 16px;
    right: 16px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.feature-shortcut kbd {
    padding: 2px 6px;
    font-size: 0.75rem;
    border-radius: 5px;
}

.interactive-demo {
    margin-top: 24px;
    padding: 16px;
    background-color: rgba(15, 23, 42, 0.5);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.toggle-switch-demo {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
}

.toggle-switch-demo:hover .toggle-switch {
    background-color: var(--color-accent);
}

.toggle-switch-demo:hover .toggle-switch:not(.active)::after {
    transform: translateX(20px);
}

.toggle-switch-demo:hover .toggle-switch.active {
    background-color: var(--color-surface-hover);
}

.toggle-switch-demo:hover .toggle-switch.active::after {
    transform: translateX(0);
}

/* How it Works */
.how-it-works {
    padding: 80px 24px;
}

.steps-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}

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

.step-card {
    position: relative;
    padding: 32px;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    text-align: center;
}

@media (min-width: 768px) {
    .step-card::after {
        content: '';
        position: absolute;
        top: 50%;
        right: -32px;
        width: 32px;
        height: 2px;
        background-color: var(--color-border);
        z-index: -1;
    }

    .step-card:last-child::after {
        display: none;
    }
}

.step-number {
    width: 56px;
    height: 56px;
    background-color: var(--color-accent);
    color: var(--color-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 24px auto;
}

.step-content h3 {
    margin-bottom: 12px;
    font-size: 1.25rem;
}

.step-content p {
    color: var(--color-text-muted);
}

/* Shortcuts */
.shortcuts {
    padding-bottom: 80px;
}

.shortcuts-table-wrapper {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    overflow: hidden;
}

.shortcuts-table {
    width: 100%;
    border-collapse: collapse;
}

.shortcuts-table th,
.shortcuts-table td {
    padding: 16px 24px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.shortcuts-table th {
    background-color: rgba(15, 23, 42, 0.4);
    font-weight: 600;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.shortcuts-table tr:last-child td {
    border-bottom: none;
}

.shortcuts-table tr:hover td {
    background-color: rgba(255, 255, 255, 0.02);
}

kbd {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-bottom-width: 2px;
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    font-size: 0.875rem;
    font-family: inherit;
    font-weight: 500;
    color: var(--color-text);
}

/* Footer */
.footer {
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: 64px 0 24px 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 48px;
    margin-bottom: 48px;
}

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

.footer-brand {
    max-width: 300px;
}

.footer-brand p {
    margin-top: 16px;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.footer-links {
    display: flex;
    gap: 64px;
}

.link-group {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.link-group h4 {
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: 8px;
}

.link-group a {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.link-group a:hover {
    color: var(--color-accent);
}

.buy-coffee {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: #2a3b52;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    color: #ffd166 !important;
}

.buy-coffee:hover {
    background-color: #3b506b;
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}