/* ----- Современный стиль: неон, стекло, анимации ----- */
:root {
    --bg-dark: #0a0a0a;
    --bg-card: #111111;
    --bg-elevated: #1a1a1a;
    --border: #2a2a2a;
    --primary: #6366f1;
    --primary-hover: #818cf8;
    --secondary: #10b981;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --danger: #ef4444;
    --warning: #f59e0b;
    --gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
}

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

body {
    background-color: var(--bg-dark);
    background-image: radial-gradient(circle at 25% 0%, rgba(99, 102, 241, 0.05) 0%, transparent 50%);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
}

/* Шапка с блюром */
header {
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 0 24px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo a {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-decoration: none;
    letter-spacing: -0.5px;
}

nav a {
    color: var(--text-secondary);
    margin-left: 28px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s;
    font-size: 0.95rem;
}

nav a:hover {
    color: var(--primary);
    text-shadow: 0 0 8px rgba(99, 102, 241, 0.4);
}

main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 32px 24px;
    min-height: calc(100vh - 140px);
}

/* Карточки */
.product-card, .profile, .order-details, .auth-form, .messages-layout {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 24px;
    transition: all 0.25s ease;
    backdrop-filter: blur(4px);
}

.product-card {
    padding: 0;
    overflow: hidden;
}

.product-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary);
    box-shadow: 0 20px 30px -12px rgba(0, 0, 0, 0.5);
}

.product-card h3 {
    padding: 20px 20px 8px;
    font-size: 1.25rem;
}

.product-card .btn {
    margin: 0 20px 20px;
    display: inline-block;
}

/* Сетка каталога */
.products {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 28px;
}

/* Кнопки */
button, .btn {
    background: var(--gradient);
    border: none;
    border-radius: 40px;
    padding: 10px 24px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
}

button:hover, .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

button:active {
    transform: translateY(0);
}

/* Поля ввода */
input, textarea, select {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 12px 16px;
    color: var(--text-primary);
    transition: all 0.2s;
}

input:focus, textarea:focus, select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
    outline: none;
}

/* Фильтры */
.filter {
    background: var(--bg-elevated);
    border-radius: 20px;
    padding: 20px;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 32px;
    border: 1px solid var(--border);
}

/* Чат */
.chat-history {
    max-height: 450px;
    overflow-y: auto;
    padding: 8px;
}

.msg.outgoing {
    background: var(--primary);
    color: white;
    border-radius: 20px 20px 4px 20px;
}

.msg.incoming {
    background: var(--bg-elevated);
    border-radius: 20px 20px 20px 4px;
}

/* Уведомления */
.notification-item {
    background: var(--bg-elevated);
    border-left: 4px solid var(--primary);
    padding: 12px 16px;
    margin-bottom: 12px;
    border-radius: 16px;
}

/* График статистики (простой блок) */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 24px 0;
}

.stat-card {
    background: var(--bg-elevated);
    padding: 20px;
    border-radius: 20px;
    text-align: center;
    border: 1px solid var(--border);
}

.stat-card .value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
}

/* Адаптивность */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        height: auto;
        padding: 12px;
    }
    nav a {
        margin: 0 12px;
    }
    .products {
        grid-template-columns: 1fr;
    }
}