@font-face {
    font-family: 'YekanBakh';
    src: url('YekanBakhMedium.woff') format('woff');
    font-weight: normal;
    font-style: normal;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'YekanBakh', Tahoma, sans-serif;
}
:root {
    --primary: #3b82f6;
    --accent-red: #c0392b;
    --accent-green: #1a472a;
    --accent-gold: #d4af37;
    --bg-dark: #020617;
    --glass: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
}
body {
    background-color: var(--bg-dark);
    background-image: radial-gradient(circle at 50% 0%, #0f172a 0%, #020617 100%);
    color: var(--text-main);
    line-height: 1.8;
    overflow-x: hidden;
    min-height: 100vh;
}
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}
#particle-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}
.particle {
    position: absolute;
    top: -20px;
    background: #fff;
    border-radius: 50%;
    filter: blur(1px);
    animation: snowFall linear infinite;
}
@keyframes snowFall {
    0% { transform: translateY(0) translateX(0); }
    33% { transform: translateY(33vh) translateX(20px); }
    66% { transform: translateY(66vh) translateX(-20px); }
    100% { transform: translateY(105vh) translateX(0); }
}
header {
    padding: 40px 0;
    position: relative;
    z-index: 10;
}
.brand {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 24px;
    font-weight: bold;
}
.brand-logo-css {
    width: 36px;
    height: 36px;
    position: relative;
    background: var(--primary);
    border-radius: 10px;
}
.cloud-main {
    position: absolute;
    width: 18px;
    height: 12px;
    background: #fff;
    border-radius: 10px;
    top: 55%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.cloud-bubble {
    position: absolute;
    width: 10px;
    height: 10px;
    background: #fff;
    border-radius: 50%;
    top: 35%;
    left: 35%;
}
.hero-section {
    padding: 80px 0 60px;
    text-align: center;
    position: relative;
    z-index: 5;
}
.hero-pill {
    display: inline-block;
    padding: 6px 20px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 40px;
    font-size: 14px;
    color: var(--primary);
    margin-bottom: 24px;
    font-weight: bold;
}
h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    margin-bottom: 24px;
    background: linear-gradient(to bottom, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-content p {
    font-size: 18px;
    color: var(--text-dim);
    max-width: 700px;
    margin: 0 auto 40px;
}
.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}
.btn {
    padding: 14px 32px;
    border-radius: 16px;
    text-decoration: none;
    font-weight: bold;
    font-size: 16px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
}
.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.2);
}
.btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(59, 130, 246, 0.4);
}
.btn-secondary {
    background: var(--glass);
    color: #fff;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
}
.glass-card {
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 32px;
    padding: 48px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}
.greeting-card {
    max-width: 850px;
    margin: 40px auto;
    text-align: center;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}
.greeting-card p {
    font-size: 20px;
    line-height: 2;
    color: #cbd5e1;
}
.signature {
    margin-top: 32px;
    font-weight: bold;
    color: var(--primary);
    font-size: 18px;
}
.card-glow {
    position: absolute;
    top: -20%;
    right: -20%;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    opacity: 0.1;
}
.card-glow.gold { background: var(--accent-gold); }
.assurance-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin: 80px 0;
}
.assurance-card {
    text-align: center;
    padding: 40px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.assurance-icon-wrap {
    width: 64px;
    height: 64px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}
.icon-support {
    width: 40px;
    height: 40px;
    position: relative;
}
.headset-arc {
    width: 100%;
    height: 100%;
    border: 3px solid var(--primary);
    border-radius: 50%;
    border-bottom-color: transparent;
}
.headset-mic {
    position: absolute;
    width: 12px;
    height: 3px;
    background: var(--primary);
    bottom: 5px;
    right: -5px;
    border-radius: 5px;
}
.icon-ticket {
    width: 44px;
    height: 32px;
    border: 3px solid var(--primary);
    border-radius: 6px;
    position: relative;
}
.ticket-hole {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--bg-dark);
    border: 2px solid var(--primary);
    border-radius: 50%;
    top: 50%;
    right: -7px;
    transform: translateY(-50%);
}
.icon-quality {
    width: 40px;
    height: 48px;
    position: relative;
}
.shield-main {
    width: 100%;
    height: 100%;
    border: 3px solid var(--primary);
    border-radius: 5px 5px 20px 20px;
}
.shield-check {
    position: absolute;
    width: 12px;
    height: 6px;
    border-left: 3px solid var(--primary);
    border-bottom: 3px solid var(--primary);
    top: 15px;
    left: 14px;
    transform: rotate(-45deg);
}
.accent-line {
    width: 40px;
    height: 4px;
    border-radius: 10px;
    margin-top: 16px;
}
.accent-line.green { background: var(--accent-green); box-shadow: 0 0 10px var(--accent-green); }
.accent-line.red { background: var(--accent-red); box-shadow: 0 0 10px var(--accent-red); }
.accent-line.gold { background: var(--accent-gold); box-shadow: 0 0 10px var(--accent-gold); }
.app-card-wrapper {
    display: flex;
    align-items: center;
    gap: 60px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.02), transparent);
    border: 1px solid var(--glass-border);
    border-radius: 48px;
    padding: 60px;
    margin: 80px 0;
}
.app-info { flex: 1; }
.app-info h2 { font-size: 32px; font-weight: 900; margin-bottom: 20px; }
.app-info p { color: var(--text-dim); margin-bottom: 32px; }
.app-features { display: flex; gap: 12px; margin-bottom: 40px; flex-wrap: wrap; }
.feature-tag {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    padding: 6px 16px;
    border-radius: 12px;
    font-size: 14px;
    color: var(--text-main);
}
.app-mockup { flex: 1; display: flex; justify-content: center; position: relative; }
.phone-frame {
    width: 250px;
    height: 500px;
    background: #1e293b;
    border-radius: 44px;
    padding: 12px;
    border: 4px solid #334155;
    position: relative;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
}
.phone-bezel {
    width: 100%;
    height: 100%;
    background: #0f172a;
    border-radius: 34px;
    overflow: hidden;
    position: relative;
}
.phone-speaker {
    width: 60px;
    height: 4px;
    background: #334155;
    margin: 12px auto 20px;
    border-radius: 10px;
}
.phone-screen { padding: 0 20px; }
.dummy-header { width: 40px; height: 40px; background: var(--primary); border-radius: 10px; margin-bottom: 20px; }
.dummy-chart { display: flex; align-items: flex-end; gap: 10px; height: 60px; margin-bottom: 30px; }
.bar { flex: 1; background: rgba(59, 130, 246, 0.2); border-radius: 4px; }
.bar.h1 { height: 40%; }
.bar.h2 { height: 80%; background: var(--primary); }
.bar.h3 { height: 60%; }
.dummy-row { height: 50px; background: rgba(255, 255, 255, 0.03); border-radius: 12px; margin-bottom: 12px; }
.mockup-glow {
    position: absolute;
    inset: -20px;
    background: radial-gradient(circle, var(--accent-gold), transparent 70%);
    opacity: 0.15;
    z-index: -1;
    filter: blur(40px);
}
.final-box {
    text-align: center;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    padding: 40px;
    border-radius: 28px;
    margin-bottom: 80px;
}
.winter-badge {
    display: inline-flex;
    margin-top: 24px;
    padding: 8px 24px;
    background: #fff;
    color: var(--bg-dark);
    border-radius: 16px;
    font-weight: 900;
    box-shadow: 0 10px 20px rgba(255, 255, 255, 0.1);
}
footer {
    padding: 60px 0;
    text-align: center;
    border-top: 1px solid var(--glass-border);
    color: var(--text-dim);
    font-size: 14px;
}
@media (max-width: 900px) {
    .assurance-grid { grid-template-columns: 1fr; }
    .app-card-wrapper { flex-direction: column; text-align: center; padding: 40px 24px; }
    .app-features { justify-content: center; }
    h1 { font-size: 32px; }
}