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

:root {
    --primary: #6c5ce7;
    --primary-dark: #5a4bd1;
    --bg: #0f0f1a;
    --bg-light: #1a1a2e;
    --card: #16213e;
    --text: #eaeaea;
    --muted: #9aa0b4;
    --success: #00b894;
    --danger: #e17055;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

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

/* Header */
.header {
    background: rgba(15, 15, 26, 0.9);
    backdrop-filter: blur(10px);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
}

.nav {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav a {
    color: var(--text);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.nav a:hover {
    color: var(--primary);
}

/* Переключатель языка */
.lang-switch {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    font-weight: 700;
    font-size: 0.85rem;
    padding: 5px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.lang-switch:hover {
    background: var(--primary);
    color: #fff;
}

/* Подзаголовок секции */
.section-sub {
    text-align: center;
    color: var(--muted);
    margin: -30px 0 40px;
    font-size: 1.05rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: #fff;
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.9rem;
}

.btn-block {
    display: block;
    width: 100%;
    margin: 8px 0;
}

/* Hero */
.hero {
    padding: 100px 0 80px;
    text-align: center;
    background: radial-gradient(circle at 50% 0%, rgba(108,92,231,0.15), transparent 60%);
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-sub {
    font-size: 1.2rem;
    color: var(--muted);
    max-width: 700px;
    margin: 0 auto 40px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
}

.stat {
    text-align: center;
}

.stat b {
    display: block;
    font-size: 2rem;
    color: var(--primary);
}

.stat span {
    color: var(--muted);
}

/* Sections */
.section-title {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 50px;
}

.features, .tariffs, .instructions {
    padding: 80px 0;
}

.features {
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--card);
    padding: 30px;
    border-radius: 12px;
    transition: transform 0.2s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.feature-card h3 {
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--muted);
    font-size: 0.95rem;
}

/* Tariffs */
.tariffs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.tariff-card {
    background: var(--card);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.2s;
}

.tariff-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.tariff-card.popular {
    border-color: var(--primary);
    position: relative;
}

.tariff-card.popular::before {
    content: "Популярный";
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: #fff;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
}

.tariff-name {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.tariff-price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 20px;
}

.tariff-duration {
    color: var(--muted);
    margin-bottom: 20px;
}

.tariff-features {
    list-style: none;
    margin-bottom: 25px;
    text-align: left;
}

.tariff-features li {
    padding: 6px 0;
    color: var(--muted);
}

.tariff-features li::before {
    content: "✓ ";
    color: var(--success);
}

/* Steps */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}

.step {
    text-align: center;
    padding: 20px;
}

.step-num {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 1.4rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
}

/* Footer */
.footer {
    background: var(--bg-light);
    padding: 40px 0;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer p {
    color: var(--muted);
    font-size: 0.9rem;
}

.footer-links a {
    color: var(--muted);
    text-decoration: none;
    margin-left: 20px;
}

.footer-links a:hover {
    color: var(--primary);
}

/* Cabinet */
.cabinet {
    padding: 60px 0;
    min-height: 70vh;
}

.card {
    background: var(--card);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 24px;
}

.card h2 {
    margin-bottom: 15px;
}

.login-card {
    max-width: 420px;
    margin: 0 auto 24px;
}

.input {
    width: 100%;
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.1);
    background: var(--bg);
    color: var(--text);
    font-size: 1rem;
    margin: 8px 0;
}

.input:focus {
    outline: none;
    border-color: var(--primary);
}

.muted {
    color: var(--muted);
    font-size: 0.9rem;
    margin-top: 15px;
}

.muted a {
    color: var(--primary);
}

.cabinet-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

/* ===== Адаптивность ===== */
@media (max-width: 992px) {
    .nav { gap: 16px; }
    .hero h1 { font-size: 2.6rem; }
}

@media (max-width: 768px) {
    .cabinet-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2rem; }
    .hero-sub { font-size: 1rem; }
    .hero-stats { gap: 30px; }
    .nav { gap: 12px; font-size: 0.9rem; }
    .nav .btn-sm { padding: 6px 12px; font-size: 0.8rem; }
    .kpi-grid { grid-template-columns: repeat(2, 1fr); }
    .tariff-price { font-size: 2rem; }
}

@media (max-width: 576px) {
    /* Мобильная шапка: компактная навигация */
    .nav { gap: 8px; }
    .nav a[data-i18n="nav_features"],
    .nav a[data-i18n="nav_tariffs"],
    .nav a[data-i18n="nav_guide"],
    .nav a[data-i18n="nav_faq"] {
        display: none;
    }
    .logo { font-size: 1.1rem; }
    .hero { padding: 60px 0 50px; }
    .hero-actions { flex-direction: column; gap: 12px; }
    .hero-actions .btn { width: 100%; text-align: center; }
    .hero-stats { gap: 24px; flex-wrap: wrap; }
    .section-title { font-size: 1.6rem; }
    .features, .tariffs, .instructions { padding: 50px 0; }
    .footer-inner { flex-direction: column; text-align: center; }
    .footer-links a { margin: 0 10px; }
    /* Таблицы — горизонтальный скролл */
    .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .admin-table { min-width: 600px; }
    .tabs button { flex: 1 1 40%; }
    .tab-panel { padding: 20px; }
}


/* Table */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th, .table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.table th {
    color: var(--muted);
    font-weight: 600;
}

.status-success {
    color: var(--success);
}

.status-pending {
    color: #fdcb6e;
}

.status-failed {
    color: var(--danger);
}

hr {
    border: none;
    border-top: 1px solid rgba(255,255,255,0.1);
    margin: 20px 0;
}

.key-box {
    background: var(--bg);
    border-radius: 8px;
    padding: 12px;
    font-family: monospace;
    font-size: 0.85rem;
    word-break: break-all;
    margin-bottom: 15px;
    max-height: 120px;
    overflow-y: auto;
}

/* ===== Кнопки действий с ключом ===== */
#key-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

#key-actions .btn {
    padding: 8px 16px;
    font-size: 0.85rem;
}

/* ===== Карточки покупки в кабинете ===== */
.shop-card {
    padding: 20px;
}

.shop-pay-methods .btn {
    padding: 10px 12px;
    font-size: 0.9rem;
    margin: 3px 0;
}

/* ===== Модальное окно QR ===== */
.modal {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: var(--card);
    border-radius: 12px;
    padding: 30px;
    max-width: 360px;
    width: 90%;
    text-align: center;
}

.modal-content img {
    width: 240px;
    height: 240px;
    border-radius: 8px;
    background: #fff;
    margin: 15px auto;
    display: block;
}

/* ===== Страница инструкций ===== */
.instr-hero {
    padding: 60px 0 0;
    text-align: center;
}

.instr-tabs {
    padding: 30px 0 20px;
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.tab {
    background: var(--card);
    color: var(--text);
    border: 2px solid transparent;
    padding: 10px 22px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

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

.tab-panel {
    display: none;
    background: var(--card);
    border-radius: 12px;
    padding: 30px;
    max-width: 700px;
    margin: 0 auto;
}

.tab-panel.active { display: block; }

.instr-steps { padding-left: 20px; }
.instr-steps li { margin-bottom: 10px; }

.tip {
    background: rgba(108,92,231,0.12);
    border-radius: 8px;
    padding: 12px 16px;
    margin-top: 20px;
}

/* Ссылки на скачивание клиентов */
.dl-links {
    background: rgba(108,92,231,0.10);
    border: 1px solid rgba(108,92,231,0.3);
    border-radius: 8px;
    padding: 10px 14px;
    margin-bottom: 16px;
}
.dl-links a {
    color: var(--primary);
    font-weight: 600;
}

/* FAQ */
.faq { padding: 40px 0 80px; }
.faq-item {
    background: var(--card);
    border-radius: 10px;
    padding: 20px 24px;
    margin-bottom: 12px;
}
.faq-item h3 { margin-bottom: 6px; color: var(--primary); }
.faq-item p { color: var(--muted); }