:root {
    --primary: #2a9d8f;
    --primary-hover: #238b7e;
    --bg: #e8ecef;
    --text: #222;
    --text-muted: #777;
    --text-light: #999;
    --white: #fff;
    --card-bg: #fff;
    --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    --card-shadow-light: 0 1px 3px rgba(0, 0, 0, 0.06);
    --border: #ddd;
    --border-light: #eee;
    --info-bg: #f5f5f5;
    --error: #e63946;
    --alert-success-bg: #d4edda;
    --alert-success-text: #155724;
    --alert-danger-bg: #f8d7da;
    --alert-danger-text: #721c24;
    --alert-info-bg: #d1ecf1;
    --alert-info-text: #0c5460;
    --radius: 12px;
    --radius-sm: 8px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 16px;
}

/* Баннер среды */
.env-banner {
    text-align: center;
    padding: 4px;
    font-size: 13px;
    font-weight: 600;
    color: var(--white);
}
.env-test { background: #e67e22; }
.env-dev { background: #e74c3c; }

/* Навбар */
.navbar {
    background: var(--primary);
    color: var(--white);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.navbar-brand {
    color: var(--white);
    text-decoration: none;
    font-size: 20px;
    font-weight: 700;
    flex-shrink: 0;
}

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 24px;
    cursor: pointer;
    padding: 4px 8px;
    line-height: 1;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 16px;
}

.navbar-menu a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 14px;
}

.navbar-menu a:hover {
    color: var(--white);
}

.navbar-user {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    text-decoration: none;
}

.navbar-user:hover {
    color: var(--white);
}

/* Алерты */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin: 16px 0;
    font-size: 14px;
}

.alert-success { background: var(--alert-success-bg); color: var(--alert-success-text); }
.alert-danger { background: var(--alert-danger-bg); color: var(--alert-danger-text); }
.alert-info { background: var(--alert-info-bg); color: var(--alert-info-text); }

/* Авторизация */
.auth-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 32px;
    margin: 40px auto;
    max-width: 400px;
    box-shadow: var(--card-shadow);
}

.auth-card h2 {
    margin-bottom: 24px;
    font-size: 24px;
    text-align: center;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 14px;
    color: #555;
    margin-bottom: 4px;
}

.form-group.checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group.checkbox label {
    margin-bottom: 0;
}

.form-input,
.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 16px;
    transition: border-color 0.2s;
}

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

.form-error {
    color: var(--error);
    font-size: 13px;
    margin-top: 4px;
    display: block;
}

.btn {
    display: inline-block;
    padding: 10px 24px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 16px;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.2s;
}

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

.btn-small {
    padding: 6px 16px;
    font-size: 14px;
}

.btn-outline {
    background: transparent;
    border: 1px solid #ccc;
    color: var(--text-muted);
}

.btn-outline:hover {
    border-color: #999;
    color: #555;
}

.auth-card .btn-primary {
    width: 100%;
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.auth-link {
    text-align: center;
    margin-top: 16px;
    font-size: 14px;
    color: var(--text-muted);
}

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

/* Каналы */
h1 {
    margin: 24px 0 16px;
    font-size: 22px;
}

.channel-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.channel-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--card-bg);
    padding: 14px 16px;
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    transition: background 0.15s;
}

.channel-card:hover {
    background: #f4f4f4;
}

.channel-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}

.channel-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.channel-avatar span {
    color: var(--white);
    font-size: 20px;
    font-weight: 700;
}

.channel-info {
    flex: 1;
    min-width: 0;
}

.channel-info h3 {
    font-size: 16px;
    margin-bottom: 2px;
}

.channel-info p {
    font-size: 13px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Карточка */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 24px;
    margin: 24px 0;
    box-shadow: var(--card-shadow);
}

.card h1 {
    margin: 0 0 4px;
}

.section {
    margin-top: 20px;
}

.text-muted {
    color: var(--text-muted);
    font-size: 14px;
}

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

.sub-info p {
    margin: 4px 0;
    font-size: 14px;
}

.info-block {
    background: var(--info-bg);
    padding: 16px;
    border-radius: var(--radius-sm);
}

.info-block h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

.info-block p {
    margin: 4px 0;
    font-size: 14px;
    line-height: 1.6;
}

.btn-row {
    display: flex;
    gap: 12px;
    align-items: stretch;
    flex-wrap: wrap;
}

.btn-row .btn {
    flex: 1;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 0;
}

.channel-link {
    color: var(--primary);
    font-size: 14px;
    word-break: break-all;
}

.channel-avatar-lg {
    width: 64px;
    height: 64px;
    font-size: 28px;
}

/* Заголовок канала */
.channel-header {
    margin: 24px 0 16px;
}

.channel-header-top {
    display: flex;
    align-items: center;
    gap: 14px;
}

.channel-header h1 {
    margin: 0;
}

.channel-header p {
    color: var(--text-muted);
    font-size: 14px;
}

/* Посты */
.post-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding-bottom: 32px;
}

.post-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--card-shadow-light);
    overflow: hidden;
}

.post-title {
    font-size: 16px;
    margin-bottom: 8px;
}

.post-image {
    width: 100%;
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
}

.post-text {
    font-size: 15px;
    line-height: 1.6;
    word-break: break-word;
}

.video-embed {
    position: relative;
    padding-bottom: 56.25%;
    margin: 8px 0;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.video-embed iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hashtag {
    color: var(--primary);
    font-weight: 500;
}

.post-date {
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-light);
}

/* Пустое состояние */
.empty-state {
    text-align: center;
    padding: 48px 16px;
    color: var(--text-light);
    font-size: 15px;
}

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

/* Лента */
.feed-layout {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    margin-top: 16px;
}

.feed-sidebar {
    width: 220px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
    position: sticky;
    top: 64px;
}

.feed-channel-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 10px;
    text-decoration: none;
    color: inherit;
    transition: background 0.15s;
}

.feed-channel-item:hover {
    background: var(--card-bg);
}

.feed-channel-item .channel-avatar {
    width: 36px;
    height: 36px;
    font-size: 15px;
}

.feed-channel-info {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.feed-channel-name {
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.feed-channel-status {
    font-size: 12px;
}

.feed-channel-status.active { color: var(--primary); }
.feed-channel-status.inactive { color: var(--error); }
.feed-channel-status.not-linked { color: var(--text-light); }

.feed-posts {
    flex: 1;
    min-width: 0;
}

.post-channel-tag {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 6px;
}

/* Контакты в профиле */
.contact-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 0;
    gap: 8px;
    flex-wrap: wrap;
}

.contact-delete-form {
    margin: 0;
}

.contact-verified {
    color: var(--primary);
    font-size: 13px;
}

.contact-unverified {
    color: var(--error);
    font-size: 13px;
}

.contact-add-form {
    display: flex;
    gap: 8px;
    align-items: stretch;
    flex-wrap: wrap;
}

.contact-add-form .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 120px;
    display: flex;
    flex-direction: column;
}

.contact-add-form .form-input {
    flex: 1;
}

.contact-add-form .btn {
    align-self: stretch;
}

/* Формы редактирования */
.form-textarea {
    min-height: 80px;
    resize: vertical;
}

.form-textarea-lg {
    min-height: 160px;
}

.current-logo {
    margin-bottom: 8px;
}

.current-logo img {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
}

/* Markdown-контент */
.markdown-content p {
    margin: 4px 0;
    font-size: 14px;
    line-height: 1.6;
}

.markdown-content ul,
.markdown-content ol {
    margin: 4px 0 4px 20px;
    font-size: 14px;
}

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

/* Таблица действий провайдера */
.actions-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
}
.actions-table tr + tr {
    border-top: 1px solid var(--border-light);
}
.actions-table td {
    padding: 10px 0;
    vertical-align: middle;
}
.actions-table-btn {
    white-space: nowrap;
    padding-right: 16px !important;
    width: 1%;
}
.actions-table-btn .btn {
    width: 100%;
    text-align: center;
}
.actions-table-desc {
    color: var(--text-muted);
    font-size: 14px;
}

/* =============================================
   Адаптивность — планшет (≤768px)
   ============================================= */
@media (max-width: 768px) {
    /* Бургер-меню */
    .navbar-toggle {
        display: block;
    }

    .navbar-menu {
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--primary);
        padding: 8px 0;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
        z-index: 99;
    }

    .navbar-menu.open {
        display: flex;
    }

    .navbar-menu a {
        padding: 10px 20px;
        font-size: 15px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .navbar-menu a:last-child {
        border-bottom: none;
    }

    .navbar .container {
        position: relative;
    }

    /* Лента — сайдбар сверху */
    .feed-layout {
        flex-direction: column;
    }

    .feed-sidebar {
        width: 100%;
        position: static;
        flex-direction: row;
        overflow-x: auto;
        gap: 8px;
        padding-bottom: 8px;
        -webkit-overflow-scrolling: touch;
    }

    .feed-channel-item {
        flex-shrink: 0;
        min-width: 0;
        padding: 8px 12px;
    }

    .feed-channel-info {
        display: none;
    }

    .feed-channel-item .channel-avatar {
        width: 40px;
        height: 40px;
    }

    /* Карточка канала */
    .card {
        padding: 16px;
        margin: 16px 0;
    }

    .auth-card {
        padding: 24px 16px;
        margin: 24px auto;
    }

    /* Кнопки в ряд — стековать */
    .btn-row {
        flex-direction: column;
    }

    .btn-row .btn {
        flex: none;
        width: 100%;
    }

    /* Таблица действий — вертикальный стек */
    .actions-table,
    .actions-table tbody,
    .actions-table tr,
    .actions-table td {
        display: block;
        width: 100%;
    }

    .actions-table tr {
        padding: 12px 0;
    }

    .actions-table tr + tr {
        border-top: 1px solid var(--border-light);
    }

    .actions-table-btn {
        padding-right: 0 !important;
        padding-bottom: 8px;
        width: 100%;
    }

    .actions-table-btn .btn {
        width: 100%;
    }

    /* Контакты */
    .contact-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .contact-add-form {
        flex-direction: column;
    }

    .contact-add-form .form-group {
        min-width: 100%;
    }

    /* Заголовок канала */
    .channel-header-top {
        gap: 10px;
    }

    .channel-avatar-lg {
        width: 48px;
        height: 48px;
        font-size: 22px;
    }
}

/* =============================================
   Адаптивность — смартфон (≤480px)
   ============================================= */
@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }

    h1 {
        font-size: 20px;
        margin: 16px 0 12px;
    }

    .auth-card {
        padding: 20px 14px;
        margin: 16px auto;
        border-radius: var(--radius-sm);
    }

    .auth-card h2 {
        font-size: 20px;
    }

    .card {
        padding: 14px;
        border-radius: var(--radius-sm);
    }

    .btn {
        padding: 10px 16px;
        font-size: 15px;
    }

    .channel-card {
        padding: 12px;
        gap: 10px;
    }

    .channel-avatar {
        width: 40px;
        height: 40px;
    }

    .channel-avatar span {
        font-size: 18px;
    }

    .post-card {
        padding: 12px;
    }

    .info-block {
        padding: 12px;
    }

    .empty-state {
        padding: 32px 12px;
    }

    /* Сайдбар ленты — только аватарки */
    .feed-sidebar {
        gap: 6px;
    }

    .feed-channel-item {
        padding: 6px 8px;
    }
}