/* =============================================
   OPTIMIZATOR PC — Основные стили
   Белая тема с фиолетовыми акцентами
   ============================================= */

/* --- Переменные --- */
:root {
    --primary: #7c3aed;
    --primary-light: #a78bfa;
    --primary-dark: #5b21b6;
    --primary-bg: #f5f3ff;
    --primary-bg-hover: #ede9fe;

    --bg: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-card: #ffffff;

    --text: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;

    --border: #e2e8f0;
    --border-light: #f1f5f9;

    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);

    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition: 0.2s ease;
}

/* --- Сброс --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    color: var(--text);
    background: var(--bg-secondary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
}

/* --- Контейнер --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Навигация --- */
.navbar {
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(255,255,255,0.95);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.5px;
}
.navbar-brand:hover {
    color: var(--text);
}
.navbar-brand span {
    color: var(--primary);
}

.navbar-nav {
    display: flex;
    list-style: none;
    gap: 4px;
}

.navbar-nav a {
    display: block;
    padding: 8px 16px;
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}
.navbar-nav a:hover,
.navbar-nav a.active {
    color: var(--primary);
    background: var(--primary-bg);
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.navbar-balance {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    padding: 6px 14px;
    background: var(--primary-bg);
    border-radius: var(--radius-sm);
}
.navbar-balance span {
    color: var(--primary);
}

/* Мобильное меню */
.navbar-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.navbar-toggle svg {
    width: 24px;
    height: 24px;
    color: var(--text);
}

/* --- Кнопки --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    line-height: 1.4;
}
.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(124,58,237,0.3);
}
.btn-primary:hover {
    background: var(--primary-dark);
    color: #fff;
    box-shadow: 0 4px 12px rgba(124,58,237,0.4);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}
.btn-outline:hover {
    background: var(--primary);
    color: #fff;
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-secondary:hover {
    background: var(--border-light);
    color: var(--text);
}

.btn-success {
    background: var(--success);
    color: #fff;
}
.btn-danger {
    background: var(--danger);
    color: #fff;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
}
.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}
.btn-block {
    width: 100%;
}

/* --- Карточки --- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition);
}
.card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-bg-hover);
}

.card-body {
    padding: 24px;
}

.card-header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 16px;
}

/* --- Карточка услуги --- */
.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all var(--transition);
    height: 100%;
}
.service-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
    transform: translateY(-2px);
}

.service-card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.service-card-price {
    font-size: 36px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 12px;
    letter-spacing: -1px;
}

.service-card-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}

.service-card .btn {
    width: 100%;
}

/* --- Сетка услуг --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

/* --- Hero секция --- */
.hero {
    background: linear-gradient(135deg, var(--primary-bg) 0%, #fff 50%, var(--primary-bg) 100%);
    padding: 100px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(124,58,237,0.05) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(124,58,237,0.03) 0%, transparent 50%);
    pointer-events: none;
}

.hero h1 {
    font-size: 56px;
    font-weight: 900;
    letter-spacing: -2px;
    line-height: 1.1;
    margin-bottom: 20px;
    position: relative;
}
.hero h1 span {
    color: var(--primary);
}

.hero p {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 36px;
    line-height: 1.6;
    position: relative;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    position: relative;
}

/* --- Секции --- */
.section {
    padding: 80px 0;
}
.section-alt {
    background: var(--bg);
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 12px;
}

.section-subtitle {
    text-align: center;
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 48px;
}

/* --- Сетка фич --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    transition: all var(--transition);
}
.feature-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-bg);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 24px;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* --- Тарифы --- */
.plans-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.plan-card {
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    transition: all var(--transition);
    position: relative;
}
.plan-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}
.plan-card.popular {
    border-color: var(--primary);
    box-shadow: 0 8px 30px rgba(124,58,237,0.15);
}
.plan-card.popular::before {
    content: 'Популярный';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.plan-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.plan-card .price {
    font-size: 42px;
    font-weight: 900;
    color: var(--text);
    letter-spacing: -2px;
    margin-bottom: 4px;
}
.plan-card .price span {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-secondary);
}

.plan-card .duration {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* --- Шаги (как это работает) --- */
.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
}

.step {
    text-align: center;
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 800;
    margin: 0 auto 16px;
}

.step h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.step p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* --- Формы --- */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 10px 14px;
    font-size: 15px;
    font-family: var(--font);
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    color: var(--text);
    transition: border-color var(--transition);
    outline: none;
}
.form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(124,58,237,0.1);
}

.form-input::placeholder {
    color: var(--text-muted);
}

textarea.form-input {
    resize: vertical;
    min-height: 100px;
}

select.form-input {
    cursor: pointer;
}

/* --- Бейджи --- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 20px;
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}
.badge-warning {
    background: #fef3c7;
    color: #92400e;
}
.badge-danger {
    background: #fee2e2;
    color: #991b1b;
}
.badge-info {
    background: #dbeafe;
    color: #1e40af;
}
.badge-primary {
    background: var(--primary-bg);
    color: var(--primary-dark);
}
.badge-secondary {
    background: var(--border-light);
    color: var(--text-secondary);
}

/* --- Таблицы --- */
.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table th,
table td {
    padding: 12px 16px;
    text-align: left;
    font-size: 14px;
    border-bottom: 1px solid var(--border);
}

table th {
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

table tr:hover {
    background: var(--primary-bg);
}

/* --- Flash-сообщения --- */
.alert {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}
.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}
.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fde68a;
}
.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

/* --- Dashboard Layout --- */
.dashboard {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 0;
    min-height: calc(100vh - 72px);
}

.dashboard-sidebar {
    background: var(--bg);
    border-right: 1px solid var(--border);
    padding: 24px 0;
}

.dashboard-sidebar a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 24px;
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    transition: all var(--transition);
}
.dashboard-sidebar a:hover,
.dashboard-sidebar a.active {
    color: var(--primary);
    background: var(--primary-bg);
}

.dashboard-sidebar h3 {
    padding: 8px 24px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-top: 16px;
}

.dashboard-content {
    padding: 32px;
}

.dashboard-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 24px;
}

/* --- Stat карточки --- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

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

.stat-card-label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 4px;
}

.stat-card-value {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -1px;
}

.stat-card-value.primary {
    color: var(--primary);
}

/* --- Пагинация --- */
.pagination {
    display: flex;
    gap: 4px;
    justify-content: center;
    margin-top: 24px;
    list-style: none;
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.pagination a:hover {
    background: var(--primary-bg);
    color: var(--primary);
    border-color: var(--primary-light);
}

.pagination .active span {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* --- Футер --- */
.footer {
    background: var(--bg);
    border-top: 1px solid var(--border);
    padding: 48px 0 24px;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 32px;
    margin-bottom: 32px;
}

.footer h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer p,
.footer a {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
}
.footer a:hover {
    color: var(--primary);
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 20px;
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
}

/* --- Модальное окно --- */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}
.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg);
    border-radius: var(--radius-lg);
    padding: 32px;
    max-width: 480px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal h2 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
}

/* --- Утилиты --- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--primary); }
.text-secondary { color: var(--text-secondary); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--text-muted); }

.font-bold { font-weight: 700; }
.font-mono { font-family: 'JetBrains Mono', 'Fira Code', monospace; }

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }

.w-full { width: 100%; }

.hidden { display: none; }

/* --- Responsive --- */
@media (max-width: 1024px) {
    .services-grid,
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .navbar-nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--bg);
        flex-direction: column;
        padding: 16px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
    }
    .navbar-nav.open {
        display: flex;
    }
    .navbar-toggle {
        display: block;
    }

    .hero h1 { font-size: 36px; }
    .hero p { font-size: 16px; }
    .hero { padding: 60px 0 50px; }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .services-grid,
    .features-grid,
    .plans-grid,
    .steps {
        grid-template-columns: 1fr;
    }

    .section { padding: 48px 0; }
    .section-title { font-size: 28px; }

    .dashboard {
        grid-template-columns: 1fr;
    }
    .dashboard-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding: 12px 0;
        display: flex;
        overflow-x: auto;
    }
    .dashboard-sidebar a {
        white-space: nowrap;
        padding: 8px 16px;
    }
    .dashboard-sidebar h3 {
        display: none;
    }
    .dashboard-content {
        padding: 20px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .service-card-price {
        font-size: 28px;
    }
}