:root { --bg: #f8fafc; --card: #ffffff; --accent: #5a67d8; --text: #2d3748; --border: #e2e8f0; --err: #e53e3e; }
* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); font-family: 'Montserrat', sans-serif; overflow-x: hidden; }
.overlay { position: fixed; inset: 0; background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(10px); z-index: 1000; display: flex; align-items: center; justify-content: center; padding: 20px; }
.v-card { background: var(--card); padding: 40px; border-radius: 28px; width: 100%; max-width: 400px; text-align: center; box-shadow: 0 20px 50px rgba(0,0,0,0.06); border: 1px solid var(--border); }
.tos-text { height: 200px; overflow-y: auto; background: #edf2f7; padding: 20px; border-radius: 16px; font-size: 13px; text-align: left; margin: 25px 0; color: #718096; }
.v-header { display: flex; justify-content: space-between; align-items: center; padding: 20px 10%; background: var(--card); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.logo { font-weight: 800; font-size: 26px; }
.logo span { color: var(--accent); }
nav .nav-link { background: transparent; border: none; font-weight: 700; cursor: pointer; padding: 10px 15px; color: #718096; font-family: inherit; }
nav .nav-link.active { color: var(--accent); }
.header-right { display: flex; align-items: center; gap: 15px; }
.v-balance { font-weight: 800; font-size: 20px; background: #edf2f7; padding: 8px 18px; border-radius: 14px; }
.v-btn { background: var(--text); color: #fff; border: none; padding: 15px; border-radius: 16px; cursor: pointer; font-weight: 700; width: 100%; }
.v-btn.disabled { opacity: 0.3; cursor: not-allowed; }
.v-btn-acc { background: var(--accent); color: #fff; border: none; padding: 14px 24px; border-radius: 16px; cursor: pointer; font-weight: 700; box-shadow: 0 4px 15px rgba(90, 103, 216, 0.3); }
.conveyor-wrap { padding: 40px 0; background: #fff; border-bottom: 1px solid var(--border); }
.conveyor { height: 140px; position: relative; overflow: hidden; }
.v-line { position: absolute; left: 50%; width: 4px; height: 100%; background: var(--accent); z-index: 10; transform: translateX(-50%); }
.v-track { display: flex; position: absolute; left: 0; top: 20px; }
.v-slot { min-width: 100px; height: 100px; background: #f1f5f9; margin: 0 10px; border-radius: 20px; display: flex; align-items: center; justify-content: center; font-size: 40px; border: 2px solid var(--border); }
.v-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; padding: 50px 10%; }
.v-case { background: var(--card); padding: 40px; border-radius: 30px; text-align: center; cursor: pointer; transition: 0.4s; border: 1px solid var(--border); }
.v-case:hover { transform: translateY(-10px); border-color: var(--accent); }
.v-icon { font-size: 60px; margin-bottom: 20px; }
.v-price { font-weight: 800; color: var(--accent); font-size: 24px; }
.v-input { width: 100%; padding: 16px; border: 2px solid var(--border); border-radius: 16px; outline: none; }
.v-err { color: var(--err); font-size: 12px; font-weight: 700; height: 20px; }
#notifications { position: fixed; top: 30px; right: 30px; z-index: 2000; }
.toast { background: #fff; border-left: 6px solid var(--accent); padding: 20px; border-radius: 15px; margin-bottom: 10px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); animation: slideIn 0.4s forwards; }
@keyframes slideIn { from { transform: translateX(100%); } to { transform: translateX(0); } }
.v-btn-close { background: none; border: none; color: #718096; margin-top: 20px; cursor: pointer; text-decoration: underline; }
.v-footer { text-align: center; padding: 40px; color: #718096; font-size: 14px; border-top: 1px solid var(--border); }