:root {
    --bg-primary: #0f1117;
    --bg-secondary: #1a1d2e;
    --bg-card: #222640;
    --accent: #6c5ce7;
    --accent-hover: #7c6ff7;
    --accent-glow: rgba(108, 92, 231, 0.3);
    --text-primary: #e8e8f0;
    --text-secondary: #9a9ab0;
    --text-muted: #6b6b80;
    --success: #00cec9;
    --danger: #ff6b6b;
    --warning: #feca57;
    --border: #2d3154;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

.navbar {
    display: flex; justify-content: space-between; align-items: center;
    padding: 1rem 2rem;
    background: rgba(15, 17, 23, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 100;
}
.nav-brand { font-size: 1.5rem; font-weight: 700; color: var(--accent); cursor: pointer; }
.nav-links { display: flex; gap: 0.5rem; align-items: center; }
.nav-link {
    color: var(--text-secondary); text-decoration: none;
    padding: 0.5rem 1rem; border-radius: 8px;
    font-size: 0.9rem; font-weight: 500; transition: all 0.2s;
}
.nav-link:hover { color: var(--text-primary); background: var(--bg-secondary); }
.btn-logout { color: var(--danger) !important; }

.container { max-width: 1100px; margin: 0 auto; padding: 2rem 1.5rem; min-height: calc(100vh - 140px); }

.page { display: none; }
.page.active { display: block; animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.hero { text-align: center; padding: 3rem 1rem 2.5rem; }
.hero h1 {
    font-size: 2.5rem; font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--success));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero p { color: var(--text-secondary); font-size: 1.1rem; margin-top: 0.5rem; }

.events-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1.5rem; }
.event-card {
    background: var(--bg-card); border-radius: var(--radius); border: 1px solid var(--border);
    overflow: hidden; cursor: pointer; transition: all 0.3s ease;
}
.event-card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: 0 8px 32px var(--accent-glow); }
.event-card-img {
    height: 160px; display: flex; align-items: center; justify-content: center;
    font-size: 3rem; background: linear-gradient(135deg, var(--bg-secondary), var(--bg-card));
}
.event-card-body { padding: 1.25rem; }
.event-card-body h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.5rem; }
.event-meta { display: flex; flex-direction: column; gap: 0.3rem; margin-bottom: 0.75rem; font-size: 0.85rem; color: var(--text-secondary); }
.event-price { font-size: 1.2rem; font-weight: 700; color: var(--success); }

.event-detail { max-width: 700px; margin: 0 auto; }
.event-detail-card {
    background: var(--bg-card); border-radius: var(--radius); border: 1px solid var(--border); padding: 2rem;
}
.event-detail-card h2 { font-size: 1.8rem; margin-bottom: 1rem; }
.event-detail-card .meta-row { display: flex; gap: 2rem; margin-bottom: 0.5rem; color: var(--text-secondary); font-size: 0.95rem; }
.event-detail-card .description { margin: 1.5rem 0; color: var(--text-secondary); line-height: 1.8; }
.event-detail-card .price-section {
    display: flex; justify-content: space-between; align-items: center;
    margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border);
}
.event-detail-card .price-big { font-size: 2rem; font-weight: 700; color: var(--success); }
.back-link { display: inline-block; margin-bottom: 1.5rem; color: var(--accent); text-decoration: none; font-weight: 500; }
.qty-control { display: flex; align-items: center; gap: 0.75rem; margin-top: 1rem; }
.qty-control label { font-size: 0.9rem; color: var(--text-secondary); }
.qty-control input {
    width: 60px; padding: 0.4rem; text-align: center; border-radius: 8px;
    border: 1px solid var(--border); background: var(--bg-secondary); color: var(--text-primary); font-size: 1rem;
}

.auth-card {
    max-width: 420px; margin: 3rem auto;
    background: var(--bg-card); padding: 2.5rem; border-radius: var(--radius);
    border: 1px solid var(--border); box-shadow: var(--shadow);
}
.auth-card h2 { text-align: center; margin-bottom: 1.5rem; font-size: 1.5rem; }
.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; margin-bottom: 0.4rem; font-size: 0.85rem; font-weight: 500; color: var(--text-secondary); }
.form-group input {
    width: 100%; padding: 0.75rem 1rem; border-radius: 8px;
    border: 1px solid var(--border); background: var(--bg-secondary);
    color: var(--text-primary); font-size: 0.95rem; font-family: inherit; transition: border-color 0.2s;
}
.form-group input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.auth-switch { text-align: center; margin-top: 1.25rem; font-size: 0.9rem; color: var(--text-secondary); }
.auth-switch a { color: var(--accent); text-decoration: none; font-weight: 500; }
.error-msg { color: var(--danger); text-align: center; margin-top: 0.75rem; font-size: 0.9rem; min-height: 1.2rem; }

.btn {
    display: inline-block; padding: 0.75rem 1.5rem; border-radius: 8px;
    font-size: 0.95rem; font-weight: 600; font-family: inherit; cursor: pointer; border: none; transition: all 0.2s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); box-shadow: 0 4px 16px var(--accent-glow); }
.btn-full { width: 100%; }
.btn-success { background: var(--success); color: #0f1117; }

.profile-section { max-width: 700px; margin: 0 auto; }
.profile-header { background: var(--bg-card); border-radius: var(--radius); border: 1px solid var(--border); padding: 2rem; margin-bottom: 2rem; }
.profile-info { margin-top: 1rem; color: var(--text-secondary); }
.profile-info p { margin-bottom: 0.4rem; }
.orders-list { display: flex; flex-direction: column; gap: 1rem; }
.order-card {
    background: var(--bg-card); border-radius: var(--radius); border: 1px solid var(--border);
    padding: 1.25rem; display: flex; justify-content: space-between; align-items: center;
}
.order-card .order-info h4 { font-size: 1rem; margin-bottom: 0.25rem; }
.order-card .order-info p { font-size: 0.85rem; color: var(--text-secondary); }
.order-card .order-status {
    padding: 0.3rem 0.75rem; border-radius: 20px; font-size: 0.8rem; font-weight: 600;
    background: rgba(0, 206, 201, 0.15); color: var(--success);
}

.chat-section { max-width: 700px; margin: 0 auto; }
.chat-section h2 { margin-bottom: 1rem; }
.chat-messages {
    background: var(--bg-card); border-radius: var(--radius); border: 1px solid var(--border);
    height: 400px; overflow-y: auto; padding: 1rem; margin-bottom: 1rem;
    display: flex; flex-direction: column; gap: 0.75rem;
}
.chat-msg { padding: 0.75rem 1rem; background: var(--bg-secondary); border-radius: 8px; max-width: 80%; }
.chat-msg .msg-user { font-size: 0.75rem; font-weight: 600; color: var(--accent); margin-bottom: 0.25rem; }
.chat-msg .msg-text { font-size: 0.9rem; }
.chat-msg .msg-time { font-size: 0.7rem; color: var(--text-muted); margin-top: 0.25rem; }
.chat-form { display: flex; gap: 0.5rem; }
.chat-form input {
    flex: 1; padding: 0.75rem 1rem; border-radius: 8px;
    border: 1px solid var(--border); background: var(--bg-secondary);
    color: var(--text-primary); font-size: 0.95rem; font-family: inherit;
}
.chat-form input:focus { outline: none; border-color: var(--accent); }

.toast {
    position: fixed; bottom: 2rem; right: 2rem;
    padding: 1rem 1.5rem; border-radius: 8px; font-size: 0.9rem; font-weight: 500;
    color: #fff; background: var(--accent); box-shadow: var(--shadow);
    transform: translateY(100px); opacity: 0; transition: all 0.3s ease; z-index: 200;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.error { background: var(--danger); }
.toast.success { background: var(--success); color: #0f1117; }

.footer { text-align: center; padding: 1.5rem; color: var(--text-muted); font-size: 0.8rem; border-top: 1px solid var(--border); }
.loading { text-align: center; color: var(--text-muted); padding: 3rem; }
.empty-state { text-align: center; color: var(--text-muted); padding: 2rem; }

@media (max-width: 768px) {
    .navbar { flex-direction: column; gap: 0.75rem; }
    .hero h1 { font-size: 1.8rem; }
    .events-grid { grid-template-columns: 1fr; }
    .order-card { flex-direction: column; gap: 0.75rem; align-items: flex-start; }
}