/* ===== CSS Variables ===== */
:root {
    --primary: #6C5CE7;
    --primary-dark: #5A4BD1;
    --primary-light: #A29BFE;
    --primary-glow: rgba(108, 92, 231, 0.3);
    --secondary: #00CEC9;
    --secondary-dark: #00B5B0;
    --accent: #FD79A8;
    --bg-dark: #0a0a1a;
    --bg-card: #12122a;
    --bg-card-hover: #1a1a3e;
    --bg-surface: #16163a;
    --text-primary: #FFFFFF;
    --text-secondary: #B0B0D0;
    --text-muted: #6C6C8A;
    --border-color: rgba(108, 92, 231, 0.15);
    --border-hover: rgba(108, 92, 231, 0.4);
    --gradient-primary: linear-gradient(135deg, #6C5CE7, #00CEC9);
    --gradient-hero: linear-gradient(135deg, #6C5CE7 0%, #A29BFE 50%, #00CEC9 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px rgba(108, 92, 231, 0.2);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

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

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

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

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

.section-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(108, 92, 231, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--primary-light);
    font-weight: 500;
    margin-bottom: 16px;
}

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

.section-title {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 10, 26, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 10px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
}

.logo-img {
    width: 38px;
    height: 38px;
    object-fit: contain;
}

.logo-text {
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: rgba(108, 92, 231, 0.1);
}

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

.btn-signin {
    padding: 8px 20px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}

.btn-signin:hover {
    color: var(--text-primary);
}

.btn-primary-sm {
    padding: 8px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    color: white;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.btn-primary-sm:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

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

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

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg-effects {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--primary);
    top: -200px;
    left: -200px;
    animation: float 8s ease-in-out infinite;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--secondary);
    bottom: -100px;
    right: -100px;
    animation: float 10s ease-in-out infinite reverse;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: var(--accent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: float 12s ease-in-out infinite;
    opacity: 0.2;
}

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-30px) scale(1.05); }
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(108, 92, 231, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--primary-light);
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease;
}

.hero-badge i {
    font-size: 0.8rem;
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 520px;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    animation: fadeInUp 0.6s ease 0.3s both;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: var(--gradient-primary);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--primary-glow);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: pointer;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: pointer;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    transform: translateY(-2px);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.05rem;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
    animation: fadeInUp 0.6s ease 0.4s both;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-suffix {
    font-size: 1.2rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

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

/* Phone Mockup */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInUp 0.8s ease 0.3s both;
}

.phone-mockup {
    position: relative;
}

.phone-frame {
    width: 300px;
    height: 620px;
    background: #1a1a2e;
    border-radius: 40px;
    border: 3px solid rgba(108, 92, 231, 0.3);
    overflow: hidden;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 40px var(--primary-glow);
}

.phone-notch {
    width: 120px;
    height: 28px;
    background: #0a0a1a;
    border-radius: 0 0 16px 16px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.phone-screen {
    padding: 10px 16px;
    height: calc(100% - 28px);
    display: flex;
    flex-direction: column;
    background: linear-gradient(180deg, #12122a 0%, #1a1a3e 100%);
}

.chat-header-mock {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 16px;
}

.chat-avatar-mock {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-primary);
}

.chat-info-mock {
    flex: 1;
}

.chat-name-mock {
    width: 80px;
    height: 12px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    margin-bottom: 6px;
}

.chat-status-mock {
    font-size: 0.7rem;
    color: var(--secondary);
}

.chat-lock-icon {
    color: var(--secondary);
    font-size: 0.85rem;
}

.chat-messages-mock {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
    overflow: hidden;
}

.msg {
    max-width: 85%;
}

.msg-sent {
    align-self: flex-end;
}

.msg-received {
    align-self: flex-start;
}

.msg-bubble {
    padding: 10px 14px;
    border-radius: 16px;
    font-size: 0.8rem;
    line-height: 1.5;
}

.msg-sent .msg-bubble {
    background: var(--primary);
    color: white;
    border-bottom-right-radius: 4px;
}

.msg-received .msg-bubble {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
}

.msg-time {
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-top: 4px;
    padding: 0 4px;
}

.msg-sent .msg-time {
    text-align: right;
}

.chat-input-mock {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 0;
    margin-top: auto;
}

.input-field-mock {
    flex: 1;
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.send-btn-mock {
    width: 38px;
    height: 38px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.85rem;
}

.phone-glow {
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 60%);
    z-index: -1;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.05); }
}

/* Scroll Indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    animation: bounce 2s ease-in-out infinite;
}

.scroll-mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.scroll-wheel {
    width: 4px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheel 2s ease-in-out infinite;
}

@keyframes scrollWheel {
    0%, 100% { opacity: 1; top: 6px; }
    50% { opacity: 0.3; top: 18px; }
}

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

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== Trusted Section ===== */
.trusted-section {
    padding: 48px 0;
    border-bottom: 1px solid var(--border-color);
}

.trusted-text {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.trusted-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
}

.trusted-logo-item {
    color: var(--text-muted);
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    opacity: 0.5;
    transition: var(--transition);
}

.trusted-logo-item:hover {
    opacity: 0.8;
}

.trusted-logo-item i {
    font-size: 1.4rem;
}

/* ===== Features Section ===== */
.features-section {
    padding: 120px 0;
}

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

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition);
}

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

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: rgba(108, 92, 231, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--primary-light);
    margin-bottom: 20px;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    background: var(--gradient-primary);
    color: white;
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== Security Section ===== */
.security-section {
    padding: 120px 0;
    background: var(--bg-surface);
}

.security-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.security-text .section-title {
    text-align: left;
}

.security-text .section-description {
    margin: 0;
    text-align: left;
    margin-bottom: 40px;
}

.security-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.security-feature-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.security-check {
    color: var(--secondary);
    font-size: 1.3rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.security-feature-item h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.security-feature-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Security Visual */
.security-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.security-shield {
    position: relative;
    width: 400px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.shield-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid var(--border-color);
}

.ring-1 {
    width: 300px;
    height: 300px;
    animation: rotateRing 20s linear infinite;
    border-style: dashed;
}

.ring-2 {
    width: 220px;
    height: 220px;
    animation: rotateRing 15s linear infinite reverse;
    border-color: var(--primary-glow);
}

.ring-3 {
    width: 140px;
    height: 140px;
    animation: rotateRing 10s linear infinite;
    border-color: var(--secondary);
    opacity: 0.3;
}

@keyframes rotateRing {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.shield-center {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    box-shadow: 0 0 40px var(--primary-glow);
    z-index: 2;
}

.security-float-badge {
    position: absolute;
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    box-shadow: var(--shadow-md);
}

.security-float-badge i {
    color: var(--primary-light);
}

.badge-1 { top: 20px; left: 50%; transform: translateX(-50%); animation: floatBadge 4s ease-in-out infinite; }
.badge-2 { right: 0; top: 50%; transform: translateY(-50%); animation: floatBadge 4s ease-in-out 1s infinite; }
.badge-3 { bottom: 20px; left: 50%; transform: translateX(-50%); animation: floatBadge 4s ease-in-out 2s infinite; }
.badge-4 { left: 0; top: 50%; transform: translateY(-50%); animation: floatBadge 4s ease-in-out 3s infinite; }

@keyframes floatBadge {
    0%, 100% { transform: translateY(-50%) translateX(0); }
    50% { transform: translateY(calc(-50% - 8px)) translateX(0); }
}

.badge-1 {
    animation: floatBadge1 4s ease-in-out infinite;
}

@keyframes floatBadge1 {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-8px); }
}

.badge-3 {
    animation: floatBadge3 4s ease-in-out 2s infinite;
}

@keyframes floatBadge3 {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== Developer Section ===== */
.developer-section {
    padding: 120px 0;
}

.developer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.developer-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: var(--transition);
}

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

.dev-card-icon {
    width: 60px;
    height: 60px;
    background: rgba(108, 92, 231, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-light);
    margin-bottom: 20px;
}

.developer-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.developer-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.dev-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary-light);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
}

.dev-link:hover {
    color: var(--primary);
    gap: 10px;
}

/* Code Preview */
.code-preview {
    background: #1e1e3a;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.code-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 20px;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--border-color);
}

.code-dots {
    display: flex;
    gap: 8px;
}

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

.dot.red { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #28c840; }

.code-title {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-family: 'Courier New', monospace;
}

.code-block {
    padding: 24px;
    font-family: 'Courier New', 'Fira Code', monospace;
    font-size: 0.9rem;
    line-height: 1.8;
    overflow-x: auto;
    color: #e0e0e0;
}

.code-keyword { color: #c792ea; }
.code-module { color: #82aaff; }
.code-string { color: #c3e88d; }
.code-decorator { color: #ffcb6b; }
.code-function { color: #82aaff; }

/* ===== Pricing Section ===== */
.pricing-section {
    padding: 120px 0;
    background: var(--bg-surface);
}

.pricing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
}

.toggle-label {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
}

.toggle-label.active {
    color: var(--text-primary);
}

.toggle-switch {
    position: relative;
    width: 52px;
    height: 28px;
    cursor: pointer;
}

.toggle-switch input {
    display: none;
}

.toggle-slider {
    position: absolute;
    inset: 0;
    background: rgba(108, 92, 231, 0.3);
    border-radius: 50px;
    transition: var(--transition);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    background: var(--primary);
    border-radius: 50%;
    top: 3px;
    left: 3px;
    transition: var(--transition);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(24px);
}

.save-badge {
    display: inline-block;
    padding: 2px 8px;
    background: rgba(0, 206, 201, 0.15);
    color: var(--secondary);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

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

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    transition: var(--transition);
    position: relative;
}

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

.pricing-card.popular {
    border-color: var(--primary);
    background: linear-gradient(180deg, rgba(108, 92, 231, 0.1) 0%, var(--bg-card) 100%);
    transform: scale(1.05);
    z-index: 2;
}

.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-4px);
}

.popular-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 20px;
    background: var(--gradient-primary);
    color: white;
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 50px;
    white-space: nowrap;
}

.pricing-header h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.pricing-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.pricing-price {
    margin-bottom: 32px;
    display: flex;
    align-items: baseline;
    gap: 2px;
}

.price-currency {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.price-amount {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1;
}

.price-period {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-left: 4px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.pricing-features li i {
    font-size: 0.85rem;
    width: 20px;
    text-align: center;
}

.pricing-features li .fa-check {
    color: var(--secondary);
}

.pricing-features li .fa-times {
    color: var(--text-muted);
}

.pricing-features li.disabled {
    color: var(--text-muted);
    opacity: 0.5;
}

.btn-pricing {
    display: block;
    width: 100%;
    padding: 14px;
    text-align: center;
    background: rgba(108, 92, 231, 0.1);
    border: 1px solid var(--border-color);
    color: var(--primary-light);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: pointer;
}

.btn-pricing:hover {
    background: rgba(108, 92, 231, 0.2);
    border-color: var(--border-hover);
}

.btn-pricing.popular-btn {
    background: var(--gradient-primary);
    border: none;
    color: white;
}

.btn-pricing.popular-btn:hover {
    box-shadow: 0 8px 30px var(--primary-glow);
    transform: translateY(-2px);
}

/* ===== About Section ===== */
.about-section {
    padding: 120px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text .section-title {
    text-align: left;
}

.about-text p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-values {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 32px;
}

.value-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.value-icon {
    width: 48px;
    height: 48px;
    background: rgba(108, 92, 231, 0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--primary-light);
    flex-shrink: 0;
}

.value-item h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.value-item p {
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* About Visual */
.about-image-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.about-stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    text-align: center;
    transition: var(--transition);
}

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

.about-stat-card.card-1 { animation: fadeInUp 0.6s ease 0.1s both; }
.about-stat-card.card-2 { animation: fadeInUp 0.6s ease 0.2s both; }
.about-stat-card.card-3 { animation: fadeInUp 0.6s ease 0.3s both; }
.about-stat-card.card-4 { animation: fadeInUp 0.6s ease 0.4s both; }

.about-stat-icon {
    font-size: 1.8rem;
    color: var(--primary-light);
    margin-bottom: 12px;
}

.about-stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 4px;
}

.about-stat-text {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ===== Testimonials Section ===== */
.testimonials-section {
    padding: 120px 0;
    background: var(--bg-surface);
}

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

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
}

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

.testimonial-stars {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
    color: #ffbd2e;
    font-size: 0.9rem;
}

.testimonial-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 44px;
    height: 44px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 700;
    color: white;
}

.author-name {
    font-size: 0.95rem;
    font-weight: 700;
}

.author-title {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===== Download Section ===== */
.download-section {
    padding: 120px 0;
}

.download-content {
    text-align: center;
}

.download-content .section-title {
    margin-bottom: 12px;
}

.download-content .section-description {
    margin-bottom: 48px;
}

.download-platforms {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
    max-width: 900px;
    margin: 0 auto;
}

.platform-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition);
    justify-content: center;
}

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

.platform-card i {
    font-size: 1.8rem;
    color: var(--primary-light);
}

.platform-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-muted);
}

.platform-name {
    display: block;
    font-size: 0.95rem;
    font-weight: 700;
}

/* ===== CTA Section ===== */
.cta-section {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(108, 92, 231, 0.15) 0%, rgba(0, 206, 201, 0.1) 100%);
}

.cta-bg-effects {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.cta-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
}

.cta-orb.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--primary);
    top: -200px;
    right: -100px;
}

.cta-orb.orb-2 {
    width: 300px;
    height: 300px;
    background: var(--secondary);
    bottom: -150px;
    left: -100px;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.cta-content p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* ===== Footer ===== */
.footer {
    padding: 80px 0 0;
    background: #060612;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 60px;
    border-bottom: 1px solid var(--border-color);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 20px;
    max-width: 300px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 1rem;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.footer-links h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--text-muted);
    transition: var(--transition);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-links a {
    font-size: 0.85rem;
    color: var(--text-muted);
    transition: var(--transition);
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 3rem;
    }

    .hero-description {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

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

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

    .hero-visual {
        display: none;
    }

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

    .security-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .security-text .section-title,
    .security-text .section-description {
        text-align: center;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .about-text .section-title {
        text-align: center;
    }

    .pricing-card.popular {
        transform: scale(1);
    }

    .pricing-card.popular:hover {
        transform: translateY(-4px);
    }

    .download-platforms {
        grid-template-columns: repeat(3, 1fr);
    }

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-dark);
        flex-direction: column;
        padding: 80px 24px 24px;
        gap: 4px;
        transition: var(--transition);
        border-left: 1px solid var(--border-color);
        z-index: 999;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-actions {
        display: none;
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

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

    .hero-title {
        font-size: 2.4rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

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

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

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

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

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

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

    .cta-content h2 {
        font-size: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

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

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .download-platforms {
        grid-template-columns: 1fr;
        max-width: 280px;
        margin: 0 auto;
    }
}

/* ===== Animations on Scroll ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Sub-Page Hero ===== */
.page-hero {
    padding: 160px 0 80px;
    position: relative;
    overflow: hidden;
    text-align: center;
}

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

.page-hero .hero-title {
    font-size: 3.2rem;
    animation: fadeInUp 0.6s ease;
}

.page-hero .hero-description {
    max-width: 600px;
    margin: 0 auto;
    animation: fadeInUp 0.6s ease 0.1s both;
}

/* ===== Comparison Table ===== */
.comparison-table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

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

.comparison-table th {
    background: var(--bg-card);
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-primary);
}

.comparison-table td:first-child,
.comparison-table th:first-child {
    text-align: left;
    font-weight: 600;
}

.comparison-table td {
    color: var(--text-secondary);
}

.comparison-table tbody tr:hover {
    background: rgba(108, 92, 231, 0.05);
}

.comparison-table .highlight {
    background: rgba(108, 92, 231, 0.08);
}

.comparison-table th.highlight {
    background: rgba(108, 92, 231, 0.15);
    color: var(--primary-light);
}

/* ===== FAQ Section ===== */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.faq-item h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.faq-item h4 i {
    color: var(--primary-light);
    font-size: 1.1rem;
}

.faq-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== Timeline ===== */
.timeline {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -33px;
    top: 4px;
    width: 14px;
    height: 14px;
    background: var(--gradient-primary);
    border-radius: 50%;
    border: 3px solid var(--bg-dark);
    z-index: 1;
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: var(--transition);
}

.timeline-content:hover {
    border-color: var(--border-hover);
    transform: translateX(4px);
}

.timeline-date {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary-light);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.timeline-content h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

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

/* ===== Download Detail Cards ===== */
.download-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

.download-detail-grid.three-col {
    grid-template-columns: repeat(3, 1fr);
    max-width: 100%;
}

.download-detail-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 36px 28px;
    text-align: center;
    transition: var(--transition);
}

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

.download-detail-icon {
    width: 72px;
    height: 72px;
    background: rgba(108, 92, 231, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary-light);
    margin: 0 auto 20px;
}

.download-detail-icon.android {
    background: rgba(61, 220, 132, 0.1);
    color: #3DDC84;
}

.download-detail-icon.windows {
    background: rgba(0, 120, 215, 0.1);
    color: #0078D7;
}

.download-detail-icon.linux {
    background: rgba(255, 193, 7, 0.1);
    color: #FFC107;
}

.download-detail-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.download-version {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.download-detail-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.download-btn-group {
    display: flex;
    gap: 10px;
}

/* ===== Web Download Card ===== */
.web-download-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 48px;
    max-width: 800px;
    margin: 0 auto;
    transition: var(--transition);
}

.web-download-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.web-card-content {
    display: flex;
    align-items: center;
    gap: 32px;
}

.web-card-icon {
    width: 80px;
    height: 80px;
    background: rgba(108, 92, 231, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    color: var(--primary-light);
    flex-shrink: 0;
}

.web-card-text {
    flex: 1;
}

.web-card-text h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.web-card-text p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== Sub-page Responsive ===== */
@media (max-width: 1024px) {
    .download-detail-grid.three-col {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .page-hero .hero-title {
        font-size: 2.2rem;
    }

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

    .download-detail-grid,
    .download-detail-grid.three-col {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .web-card-content {
        flex-direction: column;
        text-align: center;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 12px 14px;
        font-size: 0.85rem;
    }
}