:root {
    --bg-dark: #0B132B;
    --bg-card: #1C2541;
    --bg-card-hover: #232F4E;
    --accent-cyan: #00BCD4;
    --accent-ice: #80D8FF;
    --text-light: #E0F7FA;
    --text-muted: #94A3B8;
    --radius-lg: 24px;
    --radius-md: 16px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Snow Canvas Overlay */
#snow-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 10;
}

/* Container */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 20;
}

/* Navigation */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 32px 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 800;
    color: #FFFFFF;
    text-decoration: none;
    letter-spacing: -0.5px;
}

.brand-icon {
    font-size: 28px;
    filter: drop-shadow(0 0 8px rgba(0, 188, 212, 0.6));
}

.nav-links {
    display: flex;
    gap: 24px;
    align-items: center;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: color 0.2s ease;
}

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

.btn-header {
    background: linear-gradient(135deg, #00BCD4 0%, #00E5FF 100%);
    color: #0F172A;
    padding: 10px 20px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 14px;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-header:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 229, 255, 0.3);
}

/* Hero Section */
.hero {
    padding: 80px 0 100px;
    text-align: center;
    max-width: 850px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 188, 212, 0.12);
    border: 1px solid rgba(0, 188, 212, 0.3);
    padding: 8px 18px;
    border-radius: 100px;
    color: var(--accent-ice);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 28px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1.5px;
    margin-bottom: 24px;
    background: linear-gradient(180deg, #FFFFFF 0%, #80D8FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-muted);
    margin-bottom: 40px;
    font-weight: 500;
    line-height: 1.6;
}

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

.btn-primary {
    background: linear-gradient(135deg, #00BCD4 0%, #00E5FF 100%);
    color: #0F172A;
    padding: 16px 36px;
    border-radius: var(--radius-md);
    font-weight: 800;
    font-size: 18px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    transition: all 0.25s ease;
    box-shadow: 0 10px 30px rgba(0, 229, 255, 0.25);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 40px rgba(0, 229, 255, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--text-light);
    padding: 16px 32px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 17px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.25s ease;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* Features Section */
.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 18px;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 100px;
}

.feature-card {
    background-color: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    background-color: var(--bg-card-hover);
    transform: translateY(-4px);
    border-color: rgba(0, 188, 212, 0.3);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: rgba(0, 188, 212, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--accent-ice);
}

.feature-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #FFFFFF;
}

.feature-desc {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.6;
}

/* Shapes Showcase */
.shapes-section {
    background: rgba(28, 37, 65, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 48px;
    margin-bottom: 100px;
    backdrop-filter: blur(10px);
}

.shapes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.shape-item {
    background: rgba(11, 19, 43, 0.6);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.shape-icon {
    font-size: 32px;
}

.shape-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-light);
}

.shape-desc {
    font-size: 13px;
    color: var(--text-muted);
}

/* Pro Banner */
.pro-banner {
    background: linear-gradient(135deg, rgba(0, 188, 212, 0.15) 0%, rgba(30, 41, 59, 0.8) 100%);
    border: 1px solid rgba(0, 229, 255, 0.3);
    border-radius: var(--radius-lg);
    padding: 48px;
    text-align: center;
    margin-bottom: 100px;
    position: relative;
    overflow: hidden;
}

.pro-title {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 16px;
    color: #FFFFFF;
}

.pro-desc {
    color: var(--text-muted);
    font-size: 16px;
    max-width: 650px;
    margin: 0 auto 32px;
}

.pro-list {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.pro-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 600;
    color: var(--accent-ice);
    background: rgba(0, 188, 212, 0.1);
    padding: 10px 20px;
    border-radius: 100px;
}

/* Privacy Policy Specific */
.privacy-container {
    max-width: 850px;
    margin: 40px auto 100px;
    background-color: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.privacy-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 24px;
    margin-bottom: 32px;
}

.privacy-header h1 {
    font-size: 32px;
    font-weight: 800;
    color: #FFFFFF;
    letter-spacing: -0.5px;
}

.last-updated {
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 8px;
}

.privacy-content h2 {
    font-size: 20px;
    color: var(--accent-ice);
    margin: 28px 0 12px;
    font-weight: 700;
}

.privacy-content p {
    color: var(--text-muted);
    font-size: 15px;
    margin-bottom: 16px;
    line-height: 1.7;
}

.privacy-content ul {
    margin-left: 20px;
    color: var(--text-muted);
    font-size: 15px;
    margin-bottom: 16px;
}

.privacy-content li {
    margin-bottom: 8px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 32px;
    font-weight: 700;
    font-size: 15px;
    color: var(--accent-ice);
    text-decoration: none;
    transition: transform 0.2s ease;
}

.back-link:hover {
    transform: translateX(-4px);
    text-decoration: underline;
}

/* Footer */
footer {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 40px 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

footer a {
    color: var(--accent-ice);
    text-decoration: none;
    font-weight: 600;
}

footer a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 40px;
    }

    .hero-subtitle {
        font-size: 17px;
    }

    .shapes-section, .pro-banner, .privacy-container {
        padding: 28px 20px;
    }

    .nav-links {
        display: none;
    }
}