* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Segoe UI', Tahoma, sans-serif;
    background: #f4f6fb;
    color: #2c3e50;
    line-height: 1.6;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 18px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky; top: 0; z-index: 100;
}
.header-inner { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 24px; font-weight: bold; display: flex; align-items: center; gap: 8px; }
.logo span { color: #ffd700; }
nav ul { display: flex; list-style: none; gap: 22px; }
nav a { color: #fff; text-decoration: none; font-size: 15px; transition: opacity 0.2s; }
nav a:hover { opacity: 0.8; }
.btn {
    display: inline-block; padding: 10px 22px; border-radius: 6px;
    text-decoration: none; font-weight: 600; transition: all 0.2s;
    cursor: pointer; border: none; font-size: 15px;
}
.btn-primary { background: #ffd700; color: #333; }
.btn-primary:hover { background: #ffca00; transform: translateY(-1px); }
.btn-outline { background: transparent; color: #fff; border: 1px solid #fff; }
.btn-outline:hover { background: rgba(255,255,255,0.1); }

.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff; padding: 70px 0 90px; text-align: center;
}
.hero h1 { font-size: 42px; margin-bottom: 16px; }
.hero p { font-size: 18px; opacity: 0.95; max-width: 700px; margin: 0 auto 30px; }
.stats { display: flex; justify-content: center; gap: 50px; margin-top: 40px; flex-wrap: wrap; }
.stat-item .num { font-size: 32px; font-weight: bold; color: #ffd700; }
.stat-item .label { font-size: 14px; opacity: 0.85; }

.upload-box {
    background: #fff; border-radius: 12px; padding: 40px;
    max-width: 700px; margin: -50px auto 40px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    text-align: center;
}
.drop-zone {
    border: 2px dashed #667eea; border-radius: 10px;
    padding: 50px 20px; background: #f8f9ff;
    cursor: pointer; transition: all 0.2s;
}
.drop-zone:hover { background: #eef0ff; border-color: #764ba2; }
.drop-zone .icon { font-size: 50px; margin-bottom: 10px; }
.upload-limits { margin-top: 20px; color: #777; font-size: 14px; }

section { padding: 60px 0; }
.section-title { text-align: center; font-size: 32px; margin-bottom: 12px; }
.section-sub { text-align: center; color: #777; margin-bottom: 40px; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.feature {
    background: #fff; padding: 30px; border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05); transition: transform 0.2s;
}
.feature:hover { transform: translateY(-4px); }
.feature .icon { font-size: 40px; margin-bottom: 14px; }
.feature h3 { margin-bottom: 10px; color: #333; }

.pricing { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.price-card {
    background: #fff; border-radius: 12px; padding: 35px 25px;
    text-align: center; box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    border: 2px solid transparent; transition: all 0.2s;
}
.price-card.popular { border-color: #667eea; transform: scale(1.03); }
.price-card h3 { font-size: 22px; margin-bottom: 8px; }
.price { font-size: 40px; font-weight: bold; color: #667eea; margin: 16px 0; }
.price small { font-size: 16px; color: #777; font-weight: normal; }
.price-card ul { list-style: none; text-align: left; margin: 20px 0; }
.price-card li { padding: 8px 0; border-bottom: 1px solid #f0f0f0; }
.price-card li::before { content: "✓ "; color: #4caf50; font-weight: bold; }

.faq-item {
    background: #fff; border-radius: 8px; margin-bottom: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04); overflow: hidden;
}
.faq-q {
    padding: 18px 22px; cursor: pointer; font-weight: 600;
    display: flex; justify-content: space-between; align-items: center;
}
.faq-q:hover { background: #f8f9ff; }
.faq-a { padding: 0 22px 18px; color: #555; display: none; }
.faq-item.active .faq-a { display: block; }
.faq-item.active .faq-q::after { transform: rotate(180deg); }
.faq-q::after { content: "▼"; font-size: 12px; transition: transform 0.2s; }

.file-card {
    background: #fff; border-radius: 12px; padding: 40px;
    max-width: 700px; margin: 40px auto;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}
.file-info { display: flex; align-items: center; gap: 20px; margin-bottom: 25px; }
.file-icon {
    width: 70px; height: 70px; background: #667eea;
    border-radius: 12px; display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 30px;
}
.file-meta { flex: 1; }
.file-meta h2 { font-size: 22px; margin-bottom: 6px; }
.file-meta .details { color: #777; font-size: 14px; }
.download-btn {
    display: block; width: 100%; padding: 16px;
    background: linear-gradient(135deg, #4caf50, #45a049);
    color: #fff; text-align: center; border-radius: 8px;
    font-size: 17px; font-weight: 600; text-decoration: none;
    margin-top: 20px;
}
.download-btn:hover { opacity: 0.95; }

.form-box {
    background: #fff; padding: 40px; border-radius: 12px;
    max-width: 450px; margin: 40px auto;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}
.form-box h2 { text-align: center; margin-bottom: 25px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 500; }
.form-group input, .form-group textarea, .form-group select {
    width: 100%; padding: 11px 14px; border: 1px solid #ddd;
    border-radius: 6px; font-size: 15px; transition: border 0.2s;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: #667eea; }

table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 8px; overflow: hidden; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
th, td { padding: 14px 18px; text-align: left; border-bottom: 1px solid #f0f0f0; }
th { background: #667eea; color: #fff; }
tr:hover { background: #f8f9ff; }

footer {
    background: #2c3e50; color: #bbb; padding: 50px 0 20px; margin-top: 60px;
}
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 30px; margin-bottom: 30px; }
.footer-col h4 { color: #fff; margin-bottom: 14px; font-size: 16px; }
.footer-col a { color: #bbb; text-decoration: none; display: block; padding: 4px 0; font-size: 14px; }
.footer-col a:hover { color: #fff; }
.footer-bottom { text-align: center; padding-top: 20px; border-top: 1px solid #444; font-size: 13px; }

.text-page { max-width: 850px; margin: 40px auto; background: #fff; padding: 40px; border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,0.05); }
.text-page h1 { margin-bottom: 20px; color: #333; }
.text-page h2 { margin: 25px 0 12px; color: #444; }
.text-page p, .text-page li { margin-bottom: 10px; color: #555; }
.text-page ul { padding-left: 22px; }

@media (max-width: 768px) {
    .hero h1 { font-size: 30px; }
    nav ul { display: none; }
    .stats { gap: 25px; }
}