/* ===== ПЕРЕМЕННЫЕ ===== */
:root {
    --bg: #0a0e17;
    --bg-sidebar: #111927;
    --bg-topbar: #111927;
    --bg-footer: #0d1520;
    --text: #e0e0e0;
    --text-secondary: #7a8a9e;
    --border: #1e2d3d;
    --hover: #1a2838;
    --accent: #00d4ff;
    --shadow: 0 0 30px rgba(0,0,0,0.6);
    --input-bg: #0a0e17;
    --input-border: #1e2d3d;
    --link-color: #00d4ff;
    --flash-success: #00c853;
    --flash-danger: #ff1744;
    --flash-info: #2979ff;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== СВЕТЛАЯ ТЕМА ===== */
html.light {
    --bg: #f0f4f8;
    --bg-sidebar: #ffffff;
    --bg-topbar: #ffffff;
    --bg-footer: #e8ecf0;
    --text: #1a1a2e;
    --text-secondary: #555;
    --border: #d0d7de;
    --hover: #e8ecf0;
    --accent: #0066cc;
    --shadow: 0 0 30px rgba(0,0,0,0.1);
    --input-bg: #ffffff;
    --input-border: #d0d7de;
    --link-color: #0066cc;
}

/* ===== ОБЩИЕ СТИЛИ ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg);
    color: var(--text);
    height: 100vh;
    overflow: hidden;
    transition: background var(--transition), color var(--transition);
}

/* ===== БОКОВАЯ ПАНЕЛЬ ===== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 260px;
    height: 100%;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    transition: width var(--transition), transform var(--transition), background var(--transition);
    z-index: 1000;
    overflow: hidden;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
}
.sidebar.collapsed {
    width: 72px;
}
.sidebar.collapsed .sidebar-content,
.sidebar.collapsed .user-info span,
.sidebar.collapsed .site-name,
.sidebar.collapsed h3,
.sidebar.collapsed .admin-link a span,
.sidebar.collapsed .support-link a span,
.sidebar.collapsed #brand {
    display: none;
}
.sidebar.collapsed .sidebar-header h2 {
    font-size: 0;
}
.sidebar.collapsed .sidebar-header h2::before {
    content: "⚡";
    font-size: 28px;
}
.sidebar.collapsed .site-list a {
    justify-content: center;
    padding: 12px 0;
}
.sidebar.collapsed .site-list a .site-icon {
    margin: 0;
    width: 40px;
    height: 40px;
    border-radius: 10px;
}
.sidebar.collapsed .user-info {
    justify-content: center;
}
.sidebar.collapsed .login-btn,
.sidebar.collapsed .logout-btn {
    font-size: 12px;
    padding: 4px 10px;
}
.sidebar.collapsed .admin-link a,
.sidebar.collapsed .support-link a {
    font-size: 0;
}
.sidebar.collapsed .admin-link a::before {
    content: "⚙️";
    font-size: 24px;
}
.sidebar.collapsed .support-link a::before {
    content: "❤️";
    font-size: 24px;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 18px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}
.sidebar-header h2 {
    font-size: 22px;
    color: var(--accent);
    text-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
    margin: 0;
    white-space: nowrap;
    letter-spacing: -0.5px;
}
.toggle-btn {
    background: none;
    border: none;
    color: var(--text);
    font-size: 26px;
    cursor: pointer;
    padding: 0 6px;
    transition: transform var(--transition);
}
.toggle-btn:hover {
    transform: rotate(90deg);
    color: var(--accent);
}

.sidebar-content {
    padding: 16px;
    overflow-y: auto;
    flex: 1;
}
.sidebar-content::-webkit-scrollbar {
    width: 4px;
}
.sidebar-content::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

.user-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 18px;
}
.user-info span {
    font-weight: 600;
    font-size: 15px;
}

.login-btn,
.logout-btn {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    padding: 8px 20px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    font-size: 14px;
    transition: background 0.2s, transform 0.1s;
    white-space: nowrap;
    border: none;
    cursor: pointer;
}
.logout-btn {
    background: #ff4444;
}
.login-btn:hover,
.logout-btn:hover {
    filter: brightness(0.85);
    transform: scale(0.96);
}

.sidebar h3 {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-secondary);
    margin: 24px 0 14px 0;
    font-weight: 600;
}

.site-list {
    list-style: none;
    padding: 0;
}
.site-list li {
    margin-bottom: 4px;
}
.site-list a {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 10px 14px;
    color: var(--text);
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.2s;
    font-size: 15px;
    border-left: 3px solid transparent;
    white-space: nowrap;
    position: relative;
    cursor: pointer;
}
.site-list a:hover {
    background: var(--hover);
    border-left-color: var(--accent);
    color: var(--accent);
}
.site-list a.active {
    background: var(--hover);
    border-left-color: var(--accent);
    color: var(--accent);
    box-shadow: inset 0 0 0 1px var(--border);
}
.site-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    flex-shrink: 0;
    object-fit: cover;
    background: var(--bg);
    border: 1px solid var(--border);
    transition: transform 0.2s;
}
.site-list a:hover .site-icon {
    transform: scale(1.05);
}
.site-name {
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 500;
}

.support-link {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}
.support-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #ff6b6b, #ee5a24);
    color: #fff;
    padding: 8px 16px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    font-size: 15px;
    transition: transform 0.2s, box-shadow 0.2s;
    justify-content: center;
}
.support-btn:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 15px rgba(238, 90, 36, 0.4);
}

.admin-link {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}
.admin-link a {
    color: #ffaa00;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    transition: color 0.2s;
}
.admin-link a:hover {
    color: #ffcc44;
    text-decoration: underline;
}

/* ===== ОСНОВНОЙ КОНТЕНТ ===== */
.main-content {
    margin-left: 260px;
    height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left var(--transition), background var(--transition);
}
.sidebar.collapsed ~ .main-content {
    margin-left: 72px;
}

/* ===== ВЕРХНЯЯ ПАНЕЛЬ ===== */
.top-bar {
    background: var(--bg-topbar);
    padding: 8px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    min-height: 64px;
    transition: background var(--transition);
}
.top-bar-left,
.top-bar-right {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: 12px;
}
.top-bar-center {
    flex: 1;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.portal-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--accent);
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
    margin: 0;
    letter-spacing: 2px;
    line-height: 1.2;
}
.clock {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
    letter-spacing: 2px;
    margin-top: 2px;
    transition: color var(--transition);
}
.theme-toggle {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    font-size: 22px;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s, transform 0.2s;
    line-height: 1;
}
.theme-toggle:hover {
    border-color: var(--accent);
    background: var(--hover);
    transform: rotate(15deg);
}

/* ===== КНОПКА ОБНОВЛЕНИЯ IFRAME ===== */
.reload-btn {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    font-size: 26px;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s, transform 0.2s;
    line-height: 1;
}
.reload-btn:hover {
    border-color: var(--accent);
    background: var(--hover);
    transform: rotate(30deg);
}

/* ===== IFRAME КОНТЕЙНЕР С ИНДИКАТОРОМ И ОШИБКОЙ ===== */
.iframe-container {
    flex: 1;
    background: var(--bg);
    transition: background var(--transition);
    position: relative;
    overflow: hidden;
}
.iframe-container iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
    transition: opacity 0.3s;
}
.iframe-loader {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    z-index: 10;
    pointer-events: none;
    transition: opacity 0.3s;
}
.iframe-loader .spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 16px;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}
.iframe-loader span {
    color: var(--text-secondary);
    font-size: 16px;
    font-weight: 500;
}
.iframe-error {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    z-index: 10;
    gap: 16px;
}
.iframe-error span {
    color: var(--flash-danger);
    font-size: 18px;
    font-weight: 600;
}
.iframe-error button {
    background: var(--accent);
    border: none;
    border-radius: 30px;
    padding: 10px 28px;
    color: #fff;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}
.iframe-error button:hover {
    filter: brightness(0.9);
    transform: scale(0.97);
}

/* ===== ФУТЕР ===== */
.footer {
    background: var(--bg-footer);
    border-top: 1px solid var(--border);
    padding: 24px 32px 16px;
    flex-shrink: 0;
    transition: background var(--transition);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}
.footer-col h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 10px;
    letter-spacing: 0.5px;
}
.footer-col p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 4px 0;
}
.social-links {
    list-style: none;
    padding: 0;
}
.social-links li {
    margin-bottom: 6px;
}
.social-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.social-links a:hover {
    color: var(--accent);
}
.qr-col {
    text-align: center;
}
.qr-code {
    max-width: 100px;
    height: auto;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: #fff;
    padding: 4px;
    display: block;
    margin: 0 auto 6px;
}
.footer-bottom {
    text-align: center;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
    line-height: 1.8;
}
.footer-bottom span:first-child {
    background: linear-gradient(135deg, var(--accent), #ff6b6b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}

/* ===== СТРАНИЦА ПОДДЕРЖКИ ===== */
.support-page {
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--bg);
    height: 100vh;
    overflow: auto;
}
.support-container {
    background: var(--bg-sidebar);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid var(--border);
    width: 100%;
    max-width: 700px;
    box-shadow: var(--shadow);
    text-align: center;
    margin: 20px;
}
.support-container h1 {
    color: var(--accent);
    font-size: 32px;
    margin-bottom: 16px;
}
.support-container p {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 24px;
}
.support-methods {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    justify-content: center;
}
.support-method {
    flex: 1 1 200px;
    background: var(--bg);
    padding: 20px;
    border-radius: 16px;
    border: 1px solid var(--border);
}
.support-method h2 {
    font-size: 18px;
    color: var(--text);
    margin-bottom: 12px;
}
.support-donate-btn {
    display: inline-block;
    background: linear-gradient(135deg, #ff6b6b, #ee5a24);
    color: #fff;
    padding: 12px 24px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    font-size: 16px;
    transition: transform 0.2s, box-shadow 0.2s;
}
.support-donate-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 20px rgba(238, 90, 36, 0.4);
}
.qr-support {
    max-width: 180px;
    height: auto;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: #fff;
    padding: 8px;
    margin: 0 auto 12px;
    display: block;
}
.back-link {
    display: inline-block;
    margin-top: 24px;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}
.back-link:hover {
    text-decoration: underline;
}

/* ===== СТРАНИЦЫ ВХОДА/РЕГИСТРАЦИИ ===== */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--bg);
    height: 100vh;
}
.login-container {
    background: var(--bg-sidebar);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid var(--border);
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow);
}
.login-container h1 {
    text-align: center;
    color: var(--accent);
    margin-bottom: 28px;
    font-size: 28px;
    letter-spacing: -0.5px;
}
.login-container form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.login-container input {
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 12px;
    padding: 14px 18px;
    color: var(--text);
    font-size: 16px;
    transition: border-color 0.2s;
}
.login-container input:focus {
    outline: none;
    border-color: var(--accent);
}
.login-container button {
    background: var(--accent);
    border: none;
    border-radius: 12px;
    padding: 14px;
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}
.login-container button:hover {
    filter: brightness(0.9);
    transform: scale(0.98);
}
.login-container a {
    color: var(--text-secondary);
    text-decoration: none;
    display: block;
    text-align: center;
    margin-top: 18px;
    transition: color 0.2s;
}
.login-container a:hover {
    color: var(--accent);
}

.flash {
    padding: 12px;
    border-radius: 12px;
    margin-bottom: 16px;
    text-align: center;
    font-weight: 500;
}
.flash.success {
    background: var(--flash-success);
    color: #fff;
}
.flash.danger {
    background: var(--flash-danger);
    color: #fff;
}
.flash.info {
    background: var(--flash-info);
    color: #fff;
}

/* ===== АДМИН-ПАНЕЛЬ ===== */
.admin-container {
    max-width: 1200px;
    margin: 30px auto;
    padding: 24px;
    background: var(--bg-sidebar);
    border-radius: 24px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}
.admin-container h1 {
    color: var(--accent);
    font-size: 28px;
    margin-bottom: 8px;
}
.admin-container h2 {
    color: var(--text-secondary);
    margin-top: 28px;
    font-size: 20px;
}
.admin-form {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
    align-items: center;
}
.admin-form input,
.admin-form select {
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 10px;
    padding: 10px 14px;
    color: var(--text);
    flex: 1 1 160px;
    min-width: 130px;
    transition: border-color 0.2s;
}
.admin-form input:focus,
.admin-form select:focus {
    outline: none;
    border-color: var(--accent);
}
.admin-form label {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 14px;
}
.admin-form button {
    background: var(--accent);
    border: none;
    border-radius: 10px;
    padding: 10px 24px;
    font-weight: 700;
    color: #fff;
    cursor: pointer;
    transition: background 0.2s;
}
.admin-form button:hover {
    filter: brightness(0.9);
}

.admin-tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
}
.tab-btn {
    background: none;
    border: none;
    padding: 8px 18px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: all 0.2s;
}
.tab-btn.active {
    background: var(--accent);
    color: #fff;
}
.tab-btn:hover:not(.active) {
    background: var(--hover);
}
.tab-content {
    display: none;
}
.tab-content.active {
    display: block;
}

.site-list-admin {
    list-style: none;
    padding: 0;
}
.site-list-admin li {
    background: var(--bg);
    padding: 14px 18px;
    border-radius: 12px;
    margin-bottom: 10px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--border);
    gap: 8px;
}
.site-list-admin li span {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.admin-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}
.admin-actions form {
    display: flex;
    gap: 6px;
    align-items: center;
}
.admin-actions input[type="text"],
.admin-actions input[type="url"] {
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 6px;
    padding: 6px 10px;
    color: var(--text);
    width: 130px;
}
.admin-actions button {
    background: var(--border);
    border: none;
    border-radius: 6px;
    padding: 6px 14px;
    color: var(--text);
    cursor: pointer;
    transition: background 0.2s;
}
.admin-actions button:hover {
    background: var(--hover);
}

.user-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 16px;
}
.user-table th,
.user-table td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.user-table th {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.user-table td select {
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 6px;
    padding: 4px 8px;
    color: var(--text);
}
.user-table td button {
    background: var(--border);
    border: none;
    border-radius: 4px;
    padding: 4px 12px;
    color: var(--text);
    cursor: pointer;
}
.user-table td button:hover {
    background: var(--hover);
}

/* ===== АДАПТИВ ===== */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .qr-col {
        grid-column: span 2;
    }
}
@media (max-width: 768px) {
    .sidebar {
        width: 220px;
    }
    .sidebar.collapsed {
        width: 60px;
    }
    .main-content {
        margin-left: 220px;
    }
    .sidebar.collapsed ~ .main-content {
        margin-left: 60px;
    }
    .top-bar {
        padding: 6px 12px;
        min-height: 56px;
        flex-wrap: wrap;
    }
    .top-bar-center {
        order: -1;
        flex: 0 0 100%;
        margin-bottom: 4px;
    }
    .portal-title {
        font-size: 20px;
    }
    .clock {
        font-size: 15px;
    }
    .footer {
        padding: 16px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .qr-col {
        grid-column: span 1;
    }
    .admin-container {
        margin: 12px;
        padding: 12px;
    }
    .admin-form input,
    .admin-form select {
        min-width: 100px;
    }
    .admin-actions input[type="text"],
    .admin-actions input[type="url"] {
        width: 80px;
    }
    .user-table th,
    .user-table td {
        padding: 6px 8px;
        font-size: 12px;
    }
    .user-table td select {
        font-size: 12px;
        padding: 2px 4px;
    }
    .site-list a {
        padding: 8px 10px;
        font-size: 14px;
    }
    .site-icon {
        width: 28px;
        height: 28px;
    }
    .sidebar.collapsed .site-icon {
        width: 34px;
        height: 34px;
    }
    .support-container {
        padding: 24px;
        margin: 12px;
    }
    .support-methods {
        flex-direction: column;
        align-items: center;
    }
    .support-method {
        width: 100%;
    }
}
@media (max-width: 480px) {
    .sidebar {
        width: 180px;
    }
    .sidebar.collapsed {
        width: 52px;
    }
    .main-content {
        margin-left: 180px;
    }
    .sidebar.collapsed ~ .main-content {
        margin-left: 52px;
    }
    .portal-title {
        font-size: 18px;
        letter-spacing: 0;
    }
    .clock {
        font-size: 13px;
    }
    .top-bar {
        padding: 4px 8px;
        min-height: 48px;
    }
    .theme-toggle,
    .reload-btn {
        width: 36px;
        height: 36px;
        font-size: 18px;
    }
    .footer {
        padding: 12px;
    }
    .footer-col h4 {
        font-size: 13px;
    }
    .footer-col p,
    .social-links a {
        font-size: 12px;
    }
    .qr-code {
        max-width: 80px;
    }
    .login-container {
        padding: 24px;
    }
    .support-container h1 {
        font-size: 24px;
    }
}

/* ===== СКРОЛЛБАР ===== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg);
}
::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 8px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--hover);
}