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

:root {
    --primary: #0078D4;
    --primary-dark: #005A9E;
    --primary-light: #4DA3E8;
    --accent: #00B4D8;
    --dark: #0A0A0F;
    --dark-surface: #14141B;
    --dark-card: #1C1C26;
    --dark-border: #2A2A38;
    --text: #E8E8F0;
    --text-muted: #8888A0;
    --text-dim: #5A5A72;
    --green: #00C853;
    --red: #FF4757;
    --orange: #FF9F43;
    --gradient-1: linear-gradient(135deg, #0078D4, #00B4D8);
    --gradient-2: linear-gradient(135deg, #0078D4 0%, #6C5CE7 50%, #00B4D8 100%);
    --gradient-glow: radial-gradient(ellipse at 50% 0%, rgba(0, 120, 212, 0.15) 0%, transparent 60%);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
    --shadow-md: 0 8px 32px rgba(0,0,0,0.3);
    --shadow-lg: 0 16px 64px rgba(0,0,0,0.4);
    --shadow-glow: 0 0 40px rgba(0, 120, 212, 0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: var(--dark);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

/* ===== NAVIGATION ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.3s ease;
    background: transparent;
}

.nav.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--dark-border);
    padding: 10px 0;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
    font-size: 1.4rem;
    font-weight: 800;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    letter-spacing: -0.5px;
}

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

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: 0.3s;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: inherit;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all 0.25s ease;
    white-space: nowrap;
}

.btn-sm {
    padding: 8px 20px;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 14px 32px;
    font-size: 1rem;
}

.btn-xl {
    padding: 18px 40px;
    font-size: 1.1rem;
    border-radius: var(--radius-lg);
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 4px 16px rgba(0, 120, 212, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 120, 212, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1.5px solid var(--dark-border);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary-light);
    background: rgba(0, 120, 212, 0.05);
}

.btn-icon {
    font-size: 1.1em;
}

/* ===== HERO ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 100px 0 60px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-glow);
    pointer-events: none;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 120, 212, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 120, 212, 0.1);
    border: 1px solid rgba(0, 120, 212, 0.2);
    border-radius: 100px;
    color: var(--primary-light);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 3.8rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: 20px;
}

.gradient-text {
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 520px;
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 24px;
}

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

.stat-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-dim);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--dark-border);
}

/* App Window Preview */
.hero-visual {
    display: flex;
    justify-content: center;
}

.app-window {
    width: 100%;
    max-width: 480px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    transform: perspective(1000px) rotateY(-3deg) rotateX(2deg);
    transition: transform 0.4s ease;
}

.app-window:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.app-titlebar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--dark-surface);
    border-bottom: 1px solid var(--dark-border);
}

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

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

.dot-red { background: #FF5F57; }
.dot-yellow { background: #FFBD2E; }
.dot-green { background: #28C840; }

.app-title {
    font-size: 0.7rem;
    color: var(--text-dim);
}

.app-body {
    padding: 16px;
}

.app-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
}

.app-tab {
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--text-dim);
    cursor: default;
    transition: 0.2s;
}

.app-tab.active {
    background: rgba(0, 120, 212, 0.15);
    color: var(--primary-light);
}

.app-content {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.app-card {
    background: var(--dark-surface);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
}

.app-card.highlight {
    border-color: rgba(0, 200, 83, 0.2);
    background: rgba(0, 200, 83, 0.03);
}

.app-card-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.app-select {
    padding: 4px 10px;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 4px;
    font-size: 0.7rem;
    color: var(--text);
    display: inline-block;
    margin-right: 8px;
}

.app-btn-small {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary);
    color: white;
    border-radius: 4px;
    font-size: 0.65rem;
    font-weight: 600;
}

.app-btn-accent {
    display: inline-block;
    padding: 6px 14px;
    background: var(--primary);
    color: white;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.app-btn-boost {
    display: block;
    padding: 8px 14px;
    background: linear-gradient(135deg, #00C853, #00A844);
    color: white;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 4px;
}

.app-check {
    font-size: 0.65rem;
    color: var(--text-dim);
}

.app-note {
    font-size: 0.6rem;
    color: var(--text-dim);
    text-align: center;
}

.app-footer-bar {
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid var(--dark-border);
    display: flex;
    align-items: center;
    gap: 10px;
}

.app-progress {
    width: 120px;
    height: 4px;
    background: var(--dark-border);
    border-radius: 2px;
    overflow: hidden;
}

.app-progress::after {
    content: '';
    display: block;
    width: 40%;
    height: 100%;
    background: var(--primary);
    border-radius: 2px;
}

.app-status {
    font-size: 0.65rem;
    color: var(--text-dim);
}

.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-dim);
    font-size: 0.75rem;
    animation: fade-in-up 1s ease 1s both;
}

.scroll-arrow {
    animation: bounce 2s infinite;
    font-size: 1.2rem;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

@keyframes fade-in-up {
    from { opacity: 0; transform: translateX(-50%) translateY(20px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ===== SECTIONS ===== */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 120, 212, 0.1);
    border: 1px solid rgba(0, 120, 212, 0.15);
    border-radius: 100px;
    color: var(--primary-light);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== FEATURES ===== */
.features {
    padding: 120px 0;
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--dark-border), transparent);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.feature-performance::before { background: var(--gradient-1); }
.feature-privacy::before { background: linear-gradient(90deg, #6C5CE7, #A29BFE); }
.feature-cleanup::before { background: linear-gradient(90deg, #00C853, #69F0AE); }
.feature-tweaks::before { background: linear-gradient(90deg, #FF9F43, #FECA57); }
.feature-apps::before { background: linear-gradient(90deg, #E17055, #FAB1A0); }
.feature-ram::before { background: linear-gradient(90deg, #00B4D8, #90E0EF); }

.feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 120, 212, 0.2);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 20px;
}

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

.feature-list li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.feature-check {
    color: var(--green);
    font-weight: 700;
    font-size: 0.9rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.feature-list strong {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.feature-list p {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ===== SAFETY ===== */
.safety {
    padding: 120px 0;
    background: var(--dark-surface);
    position: relative;
}

.safety::before,
.safety::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--dark-border), transparent);
}

.safety::before { top: 0; }
.safety::after { bottom: 0; }

.safety-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.safety-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.safety-card:hover {
    border-color: rgba(0, 120, 212, 0.2);
    transform: translateY(-2px);
}

.safety-icon {
    font-size: 2rem;
    margin-bottom: 12px;
    display: block;
}

.safety-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.safety-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.safety-banner {
    display: flex;
    align-items: center;
    gap: 24px;
    background: rgba(255, 71, 87, 0.05);
    border: 1px solid rgba(255, 71, 87, 0.15);
    border-radius: var(--radius-lg);
    padding: 24px 32px;
}

.safety-banner-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.safety-banner-content h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--red);
}

.safety-banner-content p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ===== SCREENSHOTS ===== */
.screenshots {
    padding: 120px 0;
}

.screenshots-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.ss-tab {
    padding: 10px 24px;
    border: 1px solid var(--dark-border);
    background: var(--dark-card);
    color: var(--text-muted);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.ss-tab:hover {
    border-color: var(--primary);
    color: var(--text);
}

.ss-tab.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.screenshot-frame {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-xl);
    padding: 32px;
    box-shadow: var(--shadow-lg);
    max-width: 900px;
    margin: 0 auto;
}

.screenshot-placeholder {
    min-height: 400px;
}

.placeholder-content {
    animation: fadeIn 0.3s ease;
}

.placeholder-content.hidden {
    display: none;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.ph-header {
    font-size: 1.1rem;
    font-weight: 700;
    padding: 12px 16px;
    background: var(--dark-surface);
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
}

.ph-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.ph-card {
    background: var(--dark-surface);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-sm);
    padding: 20px;
}

.ph-card.boost {
    grid-column: span 2;
    text-align: center;
}

.ph-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.ph-bar {
    height: 32px;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 4px;
    margin-bottom: 10px;
}

.ph-btn {
    display: inline-block;
    padding: 8px 20px;
    background: var(--dark-border);
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    margin: 4px 4px 4px 0;
}

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

.ph-btn.green {
    background: var(--green);
    color: white;
    padding: 12px 28px;
    font-size: 0.95rem;
}

.ph-btn.danger {
    background: var(--red);
    color: white;
}

.ph-check {
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-top: 8px;
}

.ph-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.ph-item {
    padding: 6px 10px;
    background: var(--dark-card);
    border-radius: 4px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.ph-status {
    font-size: 0.8rem;
    margin-bottom: 10px;
}

.ph-status.green { color: var(--green); }
.ph-status.red { color: var(--red); }

.ph-size {
    font-size: 0.85rem;
    color: var(--primary-light);
    margin-bottom: 10px;
    font-weight: 500;
}

/* ===== DOWNLOAD ===== */
.download {
    padding: 120px 0;
    background: var(--dark-surface);
    position: relative;
}

.download::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--dark-border), transparent);
}

.download-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.download-title {
    font-size: 2.4rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 8px;
}

.download-subtitle {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 32px;
}

.download-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 32px;
}

.download-detail {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
}

.detail-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.detail-value {
    font-size: 1rem;
    font-weight: 600;
}

.download-btn {
    width: 100%;
    justify-content: center;
    margin-bottom: 12px;
}

.download-note {
    font-size: 0.8rem;
    color: var(--text-dim);
    text-align: center;
}

.download-requirements {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.download-requirements h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.download-requirements h4:not(:first-child) {
    margin-top: 24px;
}

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

.req-table td {
    padding: 10px 0;
    border-bottom: 1px solid var(--dark-border);
    font-size: 0.88rem;
}

.req-table td:first-child {
    color: var(--text-dim);
    width: 40%;
    font-weight: 500;
}

.compat-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.compat-badge {
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
}

.compat-badge.good {
    background: rgba(0, 200, 83, 0.1);
    color: var(--green);
    border: 1px solid rgba(0, 200, 83, 0.2);
}

.compat-badge.bad {
    background: rgba(255, 71, 87, 0.08);
    color: var(--red);
    border: 1px solid rgba(255, 71, 87, 0.15);
}

/* ===== FAQ ===== */
.faq {
    padding: 120px 0;
}

.faq-list {
    max-width: 780px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.faq-item {
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color 0.2s;
}

.faq-item:hover {
    border-color: rgba(0, 120, 212, 0.2);
}

.faq-item.open {
    border-color: rgba(0, 120, 212, 0.3);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    background: var(--dark-card);
    border: none;
    color: var(--text);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: background 0.2s;
}

.faq-question:hover {
    background: rgba(0, 120, 212, 0.03);
}

.faq-arrow {
    font-size: 1.4rem;
    font-weight: 300;
    color: var(--text-dim);
    transition: transform 0.3s;
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-item.open .faq-arrow {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-item.open .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 24px 20px;
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.7;
}

/* ===== FOOTER ===== */
.footer {
    padding: 64px 0 32px;
    border-top: 1px solid var(--dark-border);
    background: var(--dark-surface);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 48px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.footer-brand .logo-icon {
    font-size: 1.5rem;
}

.footer-brand .logo-text {
    font-size: 1.4rem;
    font-weight: 800;
}

.footer-tagline {
    color: var(--text-dim);
    font-size: 0.85rem;
    margin-top: 4px;
}

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

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col h5 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-col a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.88rem;
    transition: color 0.2s;
}

.footer-col a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid var(--dark-border);
    color: var(--text-dim);
    font-size: 0.82rem;
}

.footer-version {
    font-family: 'Courier New', monospace;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }

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

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

    .download-card {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(10, 10, 15, 0.95);
        backdrop-filter: blur(20px);
        padding: 20px 24px;
        gap: 16px;
        border-bottom: 1px solid var(--dark-border);
    }

    .nav-links.open {
        display: flex;
    }

    .nav .btn-sm {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        margin: 0 auto 32px;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .app-window {
        transform: none;
        max-width: 400px;
    }

    .app-window:hover {
        transform: none;
    }

    .section-title {
        font-size: 2rem;
    }

    .safety-grid {
        grid-template-columns: 1fr;
    }

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

    .safety-banner {
        flex-direction: column;
        text-align: center;
        padding: 24px;
    }

    .screenshots-tabs {
        flex-wrap: wrap;
    }

    .screenshot-frame {
        padding: 16px;
    }

    .ph-grid {
        grid-template-columns: 1fr;
    }

    .ph-card.boost {
        grid-column: span 1;
    }

    .ph-card[style*="grid-column"] {
        grid-column: span 1 !important;
    }

    .download-info {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 40px;
    }

    .footer-links {
        gap: 32px;
        flex-wrap: wrap;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }

    .btn-lg {
        padding: 12px 24px;
        justify-content: center;
    }

    .btn-xl {
        padding: 14px 28px;
    }
}

/* ===== SEO OPTIMIZED SECTIONS ===== */

/* Skip Link (Accessibility) */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    padding: 12px 24px;
    background: var(--primary);
    color: white;
    text-decoration: none;
    font-weight: 600;
    z-index: 10000;
    transition: top 0.2s;
}

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

/* Hero Trust Signals */
.hero-trust {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--dark-border);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Nav Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.github-star-btn {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* About Section */
.about-section {
    padding: 100px 0;
    background: var(--dark-surface);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.about-card {
    padding: 32px;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.about-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.about-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--text);
}

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

/* Why Section */
.why-section {
    padding: 100px 0;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.why-card {
    padding: 32px;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
    position: relative;
}

.why-number {
    position: absolute;
    top: -16px;
    left: 32px;
    width: 40px;
    height: 40px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.1rem;
    color: white;
    box-shadow: 0 4px 12px rgba(0, 120, 212, 0.3);
}

.why-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--text);
    padding-top: 8px;
}

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

/* Performance Comparison */
.performance-comparison {
    margin-top: 64px;
    padding: 48px;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
}

.performance-comparison h3 {
    text-align: center;
    font-size: 1.4rem;
    margin-bottom: 32px;
    color: var(--text);
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.comparison-item {
    text-align: center;
    padding: 24px;
    background: var(--dark-surface);
    border-radius: var(--radius-md);
}

.comparison-metric {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text);
    margin-bottom: 16px;
}

.comparison-before {
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-bottom: 8px;
}

.comparison-after {
    font-size: 0.85rem;
    color: var(--green);
    margin-bottom: 12px;
}

.comparison-improvement {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(0, 200, 83, 0.1);
    border-radius: 100px;
    color: var(--green);
    font-size: 0.8rem;
    font-weight: 600;
}

/* Compatibility Section */
.compatibility {
    padding: 100px 0;
}

.compat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.compat-card {
    padding: 32px;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-lg);
}

.compat-card h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--text);
}

.compat-card ul {
    list-style: none;
}

.compat-card li {
    padding: 8px 0;
    color: var(--text-muted);
    border-bottom: 1px solid var(--dark-border);
}

.compat-card li:last-child {
    border-bottom: none;
}

.compat-card.supported h4 {
    color: var(--green);
}

.compat-card.not-supported h4 {
    color: var(--red);
}

.compat-card.requirements h4 {
    color: var(--primary-light);
}

/* Download Actions */
.download-actions {
    display: flex;
    gap: 16px;
    margin-top: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.github-btn {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Quick Start List */
.quick-start-list {
    padding-left: 24px;
    margin-bottom: 24px;
}

.quick-start-list li {
    padding: 8px 0;
    color: var(--text-muted);
}

.verification-note {
    font-size: 0.9rem;
    color: var(--text-dim);
}

.verification-note a {
    color: var(--primary-light);
}

/* Footer Logo */
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.footer-description {
    color: var(--text-dim);
    font-size: 0.9rem;
    margin-top: 12px;
    max-width: 300px;
}

/* Responsive for new sections */
@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    .comparison-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .compat-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-actions {
        display: none;
    }
}

@media (max-width: 768px) {
    .hero-trust {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .performance-comparison {
        padding: 32px 24px;
    }
}