:root {
    --color-bg: #f4f6fb;
    --color-surface: #ffffff;
    --color-ink: #0f172a;
    --color-ink-soft: #475569;
    --color-muted: #64748b;
    --color-border: #e2e8f0;
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-accent: #7c3aed;
    --color-success-bg: #dcfce7;
    --color-error: #b91c1c;
    --color-error-bg: #fee2e2;
    --color-warning-bg: #fef3c7;
    --radius: 16px;
    --radius-small: 10px;
    --shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
    --shadow-hover: 0 18px 44px rgba(15, 23, 42, 0.14);
    --max-width: 1180px;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    background: var(--color-bg);
    color: var(--color-ink);
    font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

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

a:hover {
    text-decoration: underline;
}

code {
    font-family: Consolas, "Courier New", monospace;
    background: #eef2ff;
    border-radius: 6px;
    padding: 2px 6px;
    font-size: 0.9em;
}

code.code-small {
    font-size: 0.8em;
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Шапка сайта */

.site-header {
    background: #0f172a;
    color: #e2e8f0;
    position: sticky;
    top: 0;
    z-index: 20;
}

.header-inner {
    display: flex;
    align-items: center;
    gap: 24px;
    min-height: 68px;
    flex-wrap: wrap;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #ffffff;
    font-weight: 700;
    font-size: 18px;
}

.brand:hover {
    text-decoration: none;
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: #ffffff;
    font-weight: 800;
}

.main-nav {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    flex: 1 1 auto;
}

.main-nav a {
    color: #cbd5f5;
    font-size: 15px;
}

.main-nav a:hover {
    color: #ffffff;
    text-decoration: none;
}

.auth-nav {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 15px;
}

.auth-nav a {
    color: #cbd5f5;
}

.inline-form {
    display: inline;
    margin: 0;
}

.link-button {
    background: none;
    border: none;
    color: var(--color-primary);
    cursor: pointer;
    font: inherit;
    padding: 0;
    text-decoration: underline;
}

/* Кнопки */

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--color-primary);
    color: #ffffff;
    border: 1px solid transparent;
    border-radius: var(--radius-small);
    padding: 11px 20px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.15s ease;
}

.button:hover {
    background: var(--color-primary-dark);
    text-decoration: none;
    transform: translateY(-1px);
}

.button-ghost {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.button-ghost:hover {
    background: rgba(37, 99, 235, 0.08);
    color: var(--color-primary-dark);
}

.button-small {
    padding: 8px 14px;
    font-size: 14px;
}

.button-full {
    width: 100%;
}

/* Основная область */

.site-main {
    flex: 1 0 auto;
    padding: 32px 0 64px;
}

.section {
    margin-bottom: 56px;
}

.section-first {
    margin-top: 8px;
}

.section-title,
.page-title {
    font-size: 30px;
    line-height: 1.25;
    margin: 0 0 8px;
}

.section-title {
    font-size: 24px;
    margin-top: 32px;
}

.section-subtitle {
    color: var(--color-muted);
    margin: 0 0 28px;
    max-width: 820px;
}

.paragraph {
    color: var(--color-ink-soft);
    margin: 0 0 14px;
}

/* Hero */

.hero {
    background: linear-gradient(135deg, #1e293b 0%, #312e81 55%, #6d28d9 100%);
    border-radius: calc(var(--radius) + 8px);
    color: #ffffff;
    padding: 56px 48px;
    margin-bottom: 56px;
    box-shadow: var(--shadow);
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.16);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 13px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.hero h1 {
    font-size: 44px;
    margin: 20px 0 12px;
}

.hero-lead {
    font-size: 19px;
    color: #e0e7ff;
    max-width: 720px;
    margin: 0 0 28px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.hero-actions .button-ghost {
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.6);
}

.hero-actions .button-ghost:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff;
}

.hero-note {
    margin: 24px 0 0;
    color: #c7d2fe;
    font-size: 15px;
    max-width: 720px;
}

/* Карточки продуктов */

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 22px;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 26px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--color-primary);
    transition: box-shadow 0.18s ease, transform 0.18s ease;
}

.card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
}

.card-box {
    border-top-color: #2563eb;
}

.card-fambox {
    border-top-color: #7c3aed;
}

.card-revtools {
    border-top-color: #0d9488;
}

.card-wintools {
    border-top-color: #ea580c;
}

.card-code {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.03em;
    color: var(--color-muted);
    text-transform: uppercase;
}

.card-title {
    font-size: 21px;
    margin: 6px 0 0;
}

.card-text {
    color: var(--color-ink-soft);
    margin: 0;
}

.card-list,
.feature-list {
    margin: 0;
    padding-left: 20px;
    color: var(--color-ink-soft);
    display: grid;
    gap: 6px;
}

.card-link {
    margin-top: auto;
    font-weight: 600;
}

/* Шаги */

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px;
}

.step {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: rgba(37, 99, 235, 0.12);
    color: var(--color-primary);
    font-weight: 700;
}

.step h3 {
    margin: 14px 0 8px;
    font-size: 18px;
}

.step p {
    margin: 0;
    color: var(--color-ink-soft);
}

/* Страница продукта */

.product-hero {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 6px solid var(--color-primary);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
}

.product-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.product-body {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr);
    gap: 28px;
    margin-top: 32px;
}

.product-side {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
    align-self: start;
}

.access-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
    border-radius: var(--radius-small);
    padding: 18px 22px;
    margin-top: 24px;
}

.access-granted {
    background: var(--color-success-bg);
    color: #14532d;
}

.access-denied {
    background: var(--color-warning-bg);
    color: #78350f;
}

.access-panel span {
    display: block;
}

.access-meta {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    font-size: 14px;
}


/* Формы и аутентификация */

.auth-section {
    display: flex;
    justify-content: center;
}

.auth-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 36px;
    width: 100%;
    max-width: 520px;
    box-shadow: var(--shadow);
}

.error-card {
    text-align: center;
    max-width: 620px;
}

.error-code {
    font-size: 64px;
    font-weight: 800;
    line-height: 1;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.form {
    display: grid;
    gap: 18px;
    margin-top: 8px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    align-items: end;
}

.form-row {
    display: grid;
    gap: 6px;
}

.form-row label {
    font-weight: 600;
    font-size: 14px;
}

.form-row input,
.form-row select,
.form-row textarea {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-small);
    padding: 11px 14px;
    font: inherit;
    background: #fbfcfe;
    color: var(--color-ink);
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
    outline: 2px solid rgba(37, 99, 235, 0.35);
    border-color: var(--color-primary);
}

.form-row-inline {
    grid-auto-flow: column;
    align-items: center;
    justify-content: start;
    gap: 10px;
}

.field-hint {
    color: var(--color-muted);
    font-size: 13px;
}

.field-error,
.validation-summary {
    color: var(--color-error);
    font-size: 13px;
}

.validation-summary:empty {
    display: none;
}

.auth-note,
.auth-switch {
    color: var(--color-muted);
    font-size: 14px;
    margin: 18px 0 0;
}

.auth-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 22px;
}

/* Сообщения */

.alert {
    border-radius: var(--radius-small);
    padding: 14px 18px;
    margin: 18px 0;
    font-size: 15px;
}

.alert-success {
    background: var(--color-success-bg);
    color: #14532d;
}

.alert-error {
    background: var(--color-error-bg);
    color: #7f1d1d;
}

.alert-warning {
    background: var(--color-warning-bg);
    color: #78350f;
}

.alert-hidden {
    display: none;
}

/* Панели */

.profile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 22px;
    margin: 24px 0 8px;
}

.panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 26px;
    margin-bottom: 24px;
}

.panel-title {
    font-size: 19px;
    margin: 0 0 16px;
}

.panel-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 18px;
}

.info-list {
    display: grid;
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 8px 16px;
    margin: 0;
}

.info-list dt {
    color: var(--color-muted);
    font-size: 14px;
}

.info-list dd {
    margin: 0;
}

/* Таблицы */

.table-wrapper {
    overflow-x: auto;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table th,
.data-table td {
    padding: 12px 14px;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid var(--color-border);
}

.data-table th {
    background: #f8fafc;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--color-muted);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.cell-note {
    color: var(--color-muted);
    font-size: 13px;
}

/* Бейджи */

.badge {
    display: inline-block;
    border-radius: 999px;
    padding: 3px 10px;
    font-size: 12px;
    font-weight: 600;
    background: #e2e8f0;
    color: #334155;
    margin-right: 4px;
}

.badge-success {
    background: var(--color-success-bg);
    color: #14532d;
}

.badge-muted {
    background: #e2e8f0;
    color: #475569;
}

.roles-form {
    display: grid;
    gap: 6px;
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

/* Навигация администратора */

.admin-nav {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 12px;
}

.admin-nav a {
    font-weight: 600;
    color: var(--color-muted);
}

.admin-nav-active {
    color: var(--color-primary) !important;
}

/* Подвал */

.site-footer {
    background: #0f172a;
    color: #94a3b8;
    padding: 32px 0;
    font-size: 14px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.footer-brand {
    color: #ffffff;
    font-weight: 700;
    margin-bottom: 6px;
}

.footer-note {
    max-width: 520px;
}

.footer-links {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}

/* Адаптивность */

@media (max-width: 900px) {
    .product-body {
        grid-template-columns: minmax(0, 1fr);
    }

    .hero {
        padding: 40px 28px;
    }

    .hero h1 {
        font-size: 34px;
    }

    .info-list {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 640px) {
    .header-inner {
        gap: 12px;
        padding-top: 12px;
        padding-bottom: 12px;
    }

    .main-nav {
        order: 3;
        width: 100%;
    }

    .auth-card,
    .panel {
        padding: 22px;
    }
}