body[data-view="chats"] {
    --page-bg: #f2f4f8;
    --page-text: #0b1220;
    --muted-text: rgba(11, 18, 32, 0.62);
    --card-bg: #ffffff;
    --card-border: rgba(11, 18, 32, 0.10);
    --control-bg: #ffffff;
    --control-border: rgba(11, 18, 32, 0.16);
    --shadow: 0 18px 45px rgba(2,6,23,0.12);

    --nav-bg: rgba(255, 255, 255, 0.92);
    --nav-border: rgba(11, 18, 32, 0.12);
    --nav-link: rgba(11, 18, 32, 0.88);
    --nav-link-hover: #0b1220;
    --nav-control-bg: #ffffff;
    --nav-control-border: rgba(11, 18, 32, 0.18);
}

body[data-view="dashboard"],
body[data-view="media_upload"],
body[data-view="profile"],
body[data-view="videos"],
body[data-view="channel_create"],
body[data-view="phonebook"],
body[data-view="friends"],
body[data-view="frined"] {
    --page-bg: #f2f4f8;
    --page-text: #0b1220;
    --muted-text: rgba(11, 18, 32, 0.62);
    --card-bg: #ffffff;
    --card-border: rgba(11, 18, 32, 0.10);
    --control-bg: #ffffff;
    --control-border: rgba(11, 18, 32, 0.16);
    --shadow: 0 18px 45px rgba(2,6,23,0.12);

    --nav-bg: rgba(255, 255, 255, 0.92);
    --nav-border: rgba(11, 18, 32, 0.12);
    --nav-link: rgba(11, 18, 32, 0.88);
    --nav-link-hover: #0b1220;
    --nav-control-bg: #ffffff;
    --nav-control-border: rgba(11, 18, 32, 0.18);
}

body[data-view="phonebook"] {
    --panel-bg: #08385e;
    --panel-text: #ffffff;
    --panel-muted: rgba(255,255,255,0.72);
}

body[data-view="media_feed"],
body[data-view="favourites"] {
    --page-bg: #0b0f18;
    --page-text: #e8edf6;
    --muted-text: rgba(232, 237, 246, 0.68);
    --card-bg: #0f172a;
    --card-border: rgba(255, 255, 255, 0.08);
    --control-bg: rgba(255, 255, 255, 0.06);
    --control-border: rgba(255, 255, 255, 0.14);
    --shadow: 0 18px 45px rgba(0,0,0,0.35);

    --nav-bg: rgba(2, 6, 23, 0.92);
    --nav-border: rgba(255, 255, 255, 0.10);
    --nav-link: rgba(232, 237, 246, 0.92);
    --nav-link-hover: #e8edf6;
    --nav-control-bg: rgba(255, 255, 255, 0.06);
    --nav-control-border: rgba(255, 255, 255, 0.14);
}

html[data-theme="light"] body[data-view="media_feed"],
html[data-theme="light"] body[data-view="favourites"] {
    --page-bg: #f2f4f8;
    --page-text: #0b1220;
    --muted-text: rgba(11, 18, 32, 0.62);
    --card-bg: #ffffff;
    --card-border: rgba(11, 18, 32, 0.10);
    --control-bg: #f6f7fb;
    --control-border: rgba(11, 18, 32, 0.14);
    --shadow: 0 18px 45px rgba(2,6,23,0.12);

    --nav-bg: rgba(255, 255, 255, 0.92);
    --nav-border: rgba(11, 18, 32, 0.12);
    --nav-link: rgba(11, 18, 32, 0.88);
    --nav-link-hover: #0b1220;
    --nav-control-bg: #ffffff;
    --nav-control-border: rgba(11, 18, 32, 0.18);
}

body[data-view="login"],
body[data-view="signup"],
body[data-view="about"],
body[data-view="homepage"] {
    --bg: #f3f3f3;
    --text: #2b2b2b;
    --muted: #8a8a8a;
    --card: #ffffff;
    --accent: #ff8a2a;
    --shadow: 0 10px 30px rgba(0,0,0,0.10);
    --radius: 10px;
}

body[data-view="about"],
body[data-view="homepage"] {
    --muted: #6b6b6b;
}

body[data-view="about"] {
    --hero: #cfcfcf;
}

body {
    background: var(--page-bg);
    color: var(--page-text);
}

body[data-view="media_feed"],
body[data-view="favourites"] {
    background: var(--page-bg) !important;
    color: var(--page-text) !important;
}

.navbar.bg-body-tertiary {
    background: var(--nav-bg) !important;
    border-bottom: 1px solid var(--nav-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    --bs-navbar-color: var(--nav-link);
    --bs-navbar-hover-color: var(--nav-link-hover);
    --bs-navbar-toggler-border-color: var(--nav-control-border);
}

.navbar.bg-body-tertiary .nav-link,
.navbar.bg-body-tertiary .navbar-brand,
.navbar.bg-body-tertiary .dropdown-item,
.navbar.bg-body-tertiary .navbar-toggler {
    color: var(--nav-link) !important;
}

.navbar.bg-body-tertiary .dropdown-menu {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow);
}

.navbar.bg-body-tertiary .form-control {
    background: var(--nav-control-bg);
    border-color: var(--nav-control-border);
    color: var(--page-text);
}

.navbar.bg-body-tertiary .form-control::placeholder {
    color: var(--muted-text);
}

.navbar.bg-body-tertiary .btn.btn-outline-secondary {
    border-color: var(--nav-control-border);
    color: var(--nav-link);
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid rgba(0,0,0,0.12);
    background: rgba(255,255,255,0.55);
    white-space: nowrap;
}

:not([data-theme="light"]) .theme-toggle {
    border-color: rgba(255,255,255,0.10);
    background: rgba(2,6,23,0.55);
}

.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    box-shadow: var(--shadow);
}

.shell { padding-top: 92px; padding-bottom: 32px; }

.empty-note {
    background: rgba(14,165,233,0.10);
    border: 1px solid rgba(14,165,233,0.18);
    color: #075985;
    padding: 14px 16px;
    border-radius: 10px;
}

/* Chats */
body[data-view="chats"] .shell { padding-top: 92px; padding-bottom: 32px; }
body[data-view="chats"] h1.page-title { font-weight: 800; font-size: 34px; margin-bottom: 16px; }
body[data-view="chats"] .chat-box {
    height: 520px;
    border: 1px solid rgba(11, 18, 32, 0.10);
    border-radius: 10px;
    background: #efeae2;
    display: flex;
    flex-direction: column;
}
body[data-view="chats"] .chat-messages { flex: 1; overflow: auto; padding: 14px 12px; }
body[data-view="chats"] .chat-message {
    position: relative;
    max-width: 60%;
    width: fit-content;
    padding: 6px 8px 6px;
    border-radius: 8px;
    border: 0;
    background: #ffffff;
    margin-bottom: 6px;
    box-shadow: 0 1px 0.5px rgba(11, 18, 32, 0.16);
    white-space: pre-wrap;
    word-break: break-word;
    font-size: 13px;
}
body[data-view="chats"] .chat-message > .chat-body { margin: 0; }
body[data-view="chats"] .chat-message > .chat-footer {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 4px;
    margin-top: 2px;
    font-size: 11px;
    color: rgba(11, 18, 32, 0.55);
    line-height: 1;
}
body[data-view="chats"] .chat-message.mine > .chat-footer { color: rgba(11, 18, 32, 0.55); }
body[data-view="chats"] .chat-message .chat-ticks { font-size: 12px; line-height: 1; }
body[data-view="chats"] .chat-message::after {
    content: '';
    position: absolute;
    top: 0;
    left: -8px;
    width: 0;
    height: 0;
    border-top: 8px solid #ffffff;
    border-left: 8px solid transparent;
}
body[data-view="chats"] .chat-message.mine { margin-left: auto; background: #dcf8c6; }
body[data-view="chats"] .chat-message.mine::after {
    left: auto;
    right: -8px;
    border-top-color: #dcf8c6;
    border-left: 0;
    border-right: 8px solid transparent;
}
body[data-view="chats"] .chat-compose {
    border-top: 1px solid rgba(11, 18, 32, 0.10);
    padding: 12px;
    background: rgba(255,255,255,0.75);
}
body[data-view="chats"] .friends-title { font-weight: 800; font-size: 20px; }
body[data-view="chats"] .friends-search .form-control {
    border-color: rgba(11, 18, 32, 0.18);
    background: var(--control-bg);
}
body[data-view="chats"] .friend-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 10px;
    border-bottom: 1px solid rgba(11, 18, 32, 0.08);
}
body[data-view="chats"] .friend-row.clickable { cursor: pointer; }
body[data-view="chats"] .friend-row.active {
    background: rgba(14,165,233,0.10);
    border-radius: 10px;
}
body[data-view="chats"] .friend-row:last-child { border-bottom: 0; }
body[data-view="chats"] .friend-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(11, 18, 32, 0.08);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: rgba(11, 18, 32, 0.55);
}
body[data-view="chats"] .friend-name { font-weight: 700; }
body[data-view="chats"] .friend-status { color: var(--muted-text); font-size: 12px; display: flex; align-items: center; gap: 6px; }
body[data-view="chats"] .status-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(11, 18, 32, 0.5); display: inline-block; }
body[data-view="chats"] .friends-list { max-height: 560px; overflow: auto; }

/* Media feed + favourites shared */
body[data-view="media_feed"] .glass-card-header,
body[data-view="favourites"] .glass-card-header {
    padding: 10px 12px;
    border-bottom: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
body[data-view="media_feed"] .glass-card-title,
body[data-view="favourites"] .glass-card-title {
    font-weight: 700;
    letter-spacing: 0.2px;
    color: var(--page-text);
    margin: 0;
    font-size: 0.95rem;
}
body[data-view="media_feed"] .glass-card-body,
body[data-view="favourites"] .glass-card-body { padding: 12px; }
body[data-view="media_feed"] .feed-shell,
body[data-view="favourites"] .feed-shell { padding-top: 72px; padding-bottom: 32px; }
body[data-view="media_feed"] .feed-grid,
body[data-view="favourites"] .feed-grid {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 18px;
}
@media (max-width: 992px) {
    body[data-view="media_feed"] .feed-grid,
    body[data-view="favourites"] .feed-grid { grid-template-columns: 1fr; }
}
body[data-view="media_feed"] .feed-item,
body[data-view="favourites"] .feed-item {
    display: flex;
    gap: 10px;
    padding: 10px 12px;
    border-bottom: 1px solid var(--card-border);
}
body[data-view="media_feed"] .feed-item:last-child,
body[data-view="favourites"] .feed-item:last-child { border-bottom: none; }
body[data-view="media_feed"] .feed-avatar,
body[data-view="favourites"] .feed-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    background: rgba(15, 23, 42, 0.08);
}
body[data-view="media_feed"] .feed-avatar-placeholder,
body[data-view="favourites"] .feed-avatar-placeholder {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(11, 18, 32, 0.12);
    background: rgba(148, 163, 184, 0.18);
    color: rgba(11, 18, 32, 0.55);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
}
body[data-view="media_feed"] .feed-avatar-placeholder i,
body[data-view="favourites"] .feed-avatar-placeholder i { font-size: 18px; }
body[data-view="media_feed"] .feed-item-title,
body[data-view="favourites"] .feed-item-title {
    color: var(--page-text);
    font-weight: 650;
    font-size: 0.9rem;
    margin: 0;
}
body[data-view="media_feed"] .feed-item-meta,
body[data-view="favourites"] .feed-item-meta { color: var(--muted-text); font-size: 0.78rem; }
body[data-view="media_feed"] .type-badge,
body[data-view="favourites"] .type-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
    border: 1px solid var(--card-border);
}
body[data-view="media_feed"] .badge-image,
body[data-view="favourites"] .badge-image { background: rgba(245, 158, 11, 0.18); color: var(--page-text); }
body[data-view="media_feed"] .badge-video,
body[data-view="favourites"] .badge-video { background: rgba(59, 130, 246, 0.18); color: var(--page-text); }
body[data-view="media_feed"] .badge-audio,
body[data-view="favourites"] .badge-audio { background: rgba(16, 185, 129, 0.18); color: var(--page-text); }
body[data-view="media_feed"] .badge-doc,
body[data-view="favourites"] .badge-doc { background: rgba(148, 163, 184, 0.18); color: var(--page-text); }

body[data-view="media_feed"] .feed-item-title {
    flex: 1 1 auto;
    min-width: 0;
    white-space: normal;
    overflow-wrap: anywhere;
    word-break: break-word;
}

body[data-view="media_feed"] .post-card { overflow: hidden; }
body[data-view="media_feed"] .post-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
}
body[data-view="media_feed"] .post-author {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}
body[data-view="media_feed"] .post-author-name {
    font-weight: 700;
    line-height: 1.1;
    margin: 0;
    font-size: 0.92rem;
}
body[data-view="media_feed"] .post-date {
    color: var(--muted-text);
    font-size: 0.75rem;
    white-space: nowrap;
}
body[data-view="media_feed"] .post-title {
    font-weight: 700;
    margin: 0 0 8px;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}
body[data-view="media_feed"] .post-media {
    width: 100%;
    background: rgba(148, 163, 184, 0.25);
    border-top: 1px solid var(--card-border);
    border-bottom: 1px solid var(--card-border);
    position: relative;
}
body[data-view="media_feed"] .post-media img {
    width: 100%;
    height: 320px;
    object-fit: cover;
    display: block;
}
body[data-view="media_feed"] .post-media-placeholder {
    height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.85);
}
html[data-theme="light"] body[data-view="media_feed"] .post-media-placeholder { color: rgba(11,18,32,0.7); }
body[data-view="media_feed"] .play-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
}
body[data-view="media_feed"] .play-overlay-btn {
    appearance: none;
    border: 0;
    background: transparent;
    padding: 0;
    cursor: pointer;
}
body[data-view="media_feed"] .play-overlay .play-btn {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(15, 23, 42, 0.75);
    border: 1px solid rgba(255,255,255,0.18);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
body[data-view="media_feed"] .play-overlay .play-btn i { font-size: 26px; color: #fff; }
html[data-theme="light"] body[data-view="media_feed"] .play-overlay .play-btn { background: rgba(15, 23, 42, 0.70); }
body[data-view="media_feed"] .post-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 10px;
    color: var(--muted-text);
    font-size: 0.85rem;
}
body[data-view="media_feed"] .post-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}
body[data-view="media_feed"] .post-action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
body[data-view="media_feed"] .comment-toggle {
    cursor: pointer;
    user-select: none;
}
body[data-view="media_feed"] .comment-block {
    margin-top: 10px;
    border-top: 1px solid var(--card-border);
    padding-top: 12px;
}
body[data-view="media_feed"] .comment-title {
    color: var(--muted-text);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.2px;
    margin-bottom: 8px;
}
body[data-view="media_feed"] .comment-empty {
    color: var(--muted-text);
    font-size: 0.85rem;
    margin-bottom: 10px;
}
body[data-view="media_feed"] .comment-composer {
    display: flex;
    align-items: stretch;
    gap: 10px;
}
body[data-view="media_feed"] .comment-attach {
    width: 44px;
    min-width: 44px;
    border-radius: 10px;
    border: 1px solid var(--card-border);
    background: rgba(255,255,255,0.06);
    color: var(--muted-text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
html[data-theme="light"] body[data-view="media_feed"] .comment-attach { background: rgba(11,18,32,0.04); }
body[data-view="media_feed"] .comment-input-wrap {
    flex: 1;
    display: flex;
    border-radius: 10px;
    border: 1px solid var(--card-border);
    overflow: hidden;
    background: rgba(255,255,255,0.06);
}
html[data-theme="light"] body[data-view="media_feed"] .comment-input-wrap { background: rgba(11,18,32,0.04); }
body[data-view="media_feed"] .comment-input {
    flex: 1;
    border: 0;
    outline: none;
    background: transparent;
    color: var(--text);
    padding: 10px 12px;
    font-size: 0.9rem;
}
body[data-view="media_feed"] .comment-input::placeholder { color: var(--muted-text); }
body[data-view="media_feed"] .comment-send {
    border: 0;
    padding: 0 16px;
    font-weight: 600;
    background: #0d6efd;
    color: #fff;
}
body[data-view="media_feed"] .comment-hint {
    margin-top: 6px;
    color: var(--muted-text);
    font-size: 0.8rem;
}
body[data-view="media_feed"] .comment-login {
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--muted-text);
}
body[data-view="media_feed"] .comment-login a { color: inherit; text-decoration: underline; }
body[data-view="media_feed"] .comment-list {
    display: grid;
    gap: 10px;
    margin-bottom: 10px;
}
body[data-view="media_feed"] .comment-item { display: flex; gap: 10px; align-items: flex-start; }
body[data-view="media_feed"] .comment-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid var(--card-border);
    background: rgba(255,255,255,0.06);
}
body[data-view="media_feed"] .comment-body { flex: 1; min-width: 0; }
body[data-view="media_feed"] .comment-author {
    font-weight: 650;
    font-size: 0.85rem;
    line-height: 1.1;
    margin: 0;
}
body[data-view="media_feed"] .comment-date { font-size: 0.75rem; color: var(--muted-text); }
body[data-view="media_feed"] .comment-text {
    margin-top: 4px;
    font-size: 0.9rem;
    color: var(--page-text);
    white-space: pre-wrap;
    word-break: break-word;
}

/* Media upload */
body[data-view="media_upload"] .hint { color: var(--muted-text); font-size: 12px; }
body[data-view="media_upload"] .checklist {
    border: 1px solid rgba(11, 18, 32, 0.12);
    border-radius: 10px;
    overflow: hidden;
    background: rgba(255,255,255,0.7);
}
body[data-view="media_upload"] .checklist .row-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-bottom: 1px solid rgba(11, 18, 32, 0.08);
}
body[data-view="media_upload"] .checklist .row-item:last-child { border-bottom: 0; }
body[data-view="media_upload"] .checklist input[type="checkbox"] { width: 18px; height: 18px; }
body[data-view="media_upload"] .upload-btn {
    width: 100%;
    background: #2f6fd6;
    border-color: #2f6fd6;
    font-weight: 700;
    letter-spacing: 0.02em;
    padding: 12px 16px;
}
body[data-view="media_upload"] .upload-shell {
    display: grid;
    grid-template-columns: 170px 1fr;
    gap: 18px;
    align-items: start;
}
body[data-view="media_upload"] .mode-btn {
    width: 100%;
    border-radius: 10px;
    padding: 12px 12px;
    font-weight: 700;
    border: 1px solid rgba(11, 18, 32, 0.10);
    background: rgba(11, 18, 32, 0.04);
}
body[data-view="media_upload"] .mode-btn.active {
    background: rgba(47, 111, 214, 0.12);
    border-color: rgba(47, 111, 214, 0.28);
    color: #1e4ea3;
}
body[data-view="media_upload"] .btn-loading .btn-label-loading { display: none; }
body[data-view="media_upload"] .btn-loading.is-loading .btn-label { display: none; }
body[data-view="media_upload"] .btn-loading.is-loading .btn-label-loading { display: inline-flex; align-items: center; gap: 10px; }
body[data-view="media_upload"] .btn-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.55);
    border-top-color: rgba(255,255,255,1);
    border-radius: 50%;
    display: inline-block;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
body[data-view="media_upload"] .dropbox {
    border: 1px dashed rgba(11, 18, 32, 0.28);
    border-radius: 12px;
    padding: 18px;
    background: rgba(255,255,255,0.65);
}
body[data-view="media_upload"] .file-meta {
    border: 1px solid rgba(11, 18, 32, 0.12);
    border-radius: 12px;
    padding: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
body[data-view="media_upload"] .file-meta .meta { min-width: 0; }
body[data-view="media_upload"] .file-meta .meta .name { font-weight: 700; }
body[data-view="media_upload"] .file-meta .meta .sub { color: var(--muted-text); font-size: 12px; }
body[data-view="media_upload"] .hidden { display: none !important; }
body[data-view="media_upload"] .alert { border-radius: 12px; }
@media (max-width: 720px) { body[data-view="media_upload"] .upload-shell { grid-template-columns: 1fr; } }

/* Profile */
body[data-view="profile"] .shell { padding-top: 84px; padding-bottom: 32px; }
body[data-view="profile"] .profile-avatar {
    width: 260px;
    height: 260px;
    border-radius: 50%;
    object-fit: cover;
    border: 6px solid rgba(255,255,255,0.9);
    box-shadow: 0 12px 30px rgba(2,6,23,0.18);
    display: block;
    margin: 10px auto 14px;
}
body[data-view="profile"] .profile-avatar-placeholder {
    width: 260px;
    height: 260px;
    border-radius: 50%;
    border: 6px solid rgba(255,255,255,0.9);
    box-shadow: 0 12px 30px rgba(2,6,23,0.18);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 10px auto 14px;
    background: rgba(148, 163, 184, 0.18);
    color: rgba(11, 18, 32, 0.45);
}
body[data-view="profile"] .profile-avatar-placeholder i { font-size: 96px; }
body[data-view="profile"] .profile-name {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin: 6px 0 12px;
}
body[data-view="profile"] .profile-detail {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    padding: 6px 0;
    border-bottom: 1px solid rgba(11, 18, 32, 0.08);
}
body[data-view="profile"] .profile-detail:last-child { border-bottom: none; }
body[data-view="profile"] .profile-label { font-weight: 700; color: #0b1220; }
body[data-view="profile"] .profile-value { color: #334155; text-align: right; overflow-wrap: anywhere; }
body[data-view="profile"] .upload-buttons { display: flex; gap: 12px; justify-content: center; }
body[data-view="profile"] .upload-button {
    width: 80px;
    padding: 12px 10px;
    border: 1px solid rgba(11, 18, 32, 0.12);
    border-radius: 10px;
    background: #fff;
    text-align: center;
    cursor: pointer;
    user-select: none;
}
body[data-view="profile"] .upload-button i { font-size: 18px; }
body[data-view="profile"] .upload-button div { font-size: 12px; color: #334155; margin-top: 6px; }
body[data-view="profile"] .form-label { color: #64748b; font-size: 13px; }
body[data-view="profile"] .form-control { border-color: rgba(11, 18, 32, 0.18); }
body[data-view="profile"] .form-control:focus { border-color: rgba(37, 99, 235, 0.55); box-shadow: 0 0 0 0.25rem rgba(37,99,235,0.12); }
body[data-view="profile"] h1.page-title { font-size: 34px; font-weight: 700; text-align: center; margin-bottom: 18px; }

/* Dashboard */
body[data-view="dashboard"] h1 { font-weight: 800; }
body[data-view="dashboard"] .lead { color: var(--muted-text); }
body[data-view="dashboard"] .pill-filter .btn { padding: 4px 12px; border-radius: 6px; font-size: 12px; }

/* Friends + frined */
body[data-view="friends"] main.container,
body[data-view="frined"] main.container { padding-top: 92px; padding-bottom: 32px; }

body[data-view="frined"] .page-title { font-size: 26px; font-weight: 800; letter-spacing: 0.02em; }
body[data-view="frined"] .subhead { color: var(--muted-text); font-size: 12px; letter-spacing: 0.06em; }
body[data-view="frined"] .users-table thead th {
    font-size: 12px;
    letter-spacing: 0.06em;
    color: rgba(11, 18, 32, 0.68);
    border-bottom-color: rgba(11, 18, 32, 0.12);
}
body[data-view="frined"] .users-table tbody td {
    border-bottom-color: rgba(11, 18, 32, 0.08);
    vertical-align: middle;
}

/* Phonebook */
body[data-view="phonebook"] .contacts-title { font-size: 26px; font-weight: 800; letter-spacing: 0.02em; }
body[data-view="phonebook"] .subhead { color: var(--muted-text); font-size: 12px; letter-spacing: 0.06em; }
body[data-view="phonebook"] .contacts-table thead th {
    font-size: 12px;
    letter-spacing: 0.06em;
    color: rgba(11, 18, 32, 0.68);
    border-bottom-color: rgba(11, 18, 32, 0.12);
}
body[data-view="phonebook"] .contacts-table tbody td {
    border-bottom-color: rgba(11, 18, 32, 0.08);
    vertical-align: middle;
}
body[data-view="phonebook"] .panel {
    background: var(--panel-bg);
    color: var(--panel-text);
    border-radius: 14px;
    box-shadow: var(--shadow);
}
body[data-view="phonebook"] .panel h2 { font-size: 18px; font-weight: 800; margin: 0; }
body[data-view="phonebook"] .panel .rule { height: 1px; background: rgba(255,255,255,0.20); margin: 12px 0 18px; }
body[data-view="phonebook"] .panel .form-label { color: rgba(255,255,255,0.82); font-size: 12px; }
body[data-view="phonebook"] .panel .form-control,
body[data-view="phonebook"] .panel .form-select {
    border-radius: 8px;
    border-color: rgba(255,255,255,0.22);
}
body[data-view="phonebook"] .panel .form-control:focus,
body[data-view="phonebook"] .panel .form-select:focus {
    box-shadow: 0 0 0 0.25rem rgba(37, 99, 235, 0.20);
    border-color: rgba(255,255,255,0.40);
}
body[data-view="phonebook"] .panel .btn-primary {
    background: #2f6fd6;
    border-color: #2f6fd6;
    font-weight: 800;
    letter-spacing: 0.04em;
}
@media (max-width: 991.98px) { body[data-view="phonebook"] .panel { margin-top: 16px; } }

/* Videos */
body[data-view="videos"] body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
body[data-view="videos"] .content-container {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 20px;
    margin-bottom: 30px;
    height: 100%;
}
body[data-view="videos"] .empty-state { text-align: center; padding: 40px 20px; }
body[data-view="videos"] .empty-state-icon { font-size: 60px; color: #dee2e6; margin-bottom: 20px; }
body[data-view="videos"] .upload-form { padding: 20px; }
body[data-view="videos"] .upload-btn { width: 100%; background-color: #007bff; border: none; }

/* Login, signup, about, homepage */
body[data-view="login"],
body[data-view="signup"],
body[data-view="about"],
body[data-view="homepage"] {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--text);
    background: var(--bg);
}

body[data-view="signup"] {
    background: linear-gradient(90deg, #cfcfcf 0%, #cfcfcf 34%, var(--bg) 34%, var(--bg) 100%);
    min-height: 100vh;
}

body[data-view="login"] *,
body[data-view="signup"] *,
body[data-view="about"] *,
body[data-view="homepage"] * { box-sizing: border-box; }

body[data-view="login"] .topbar,
body[data-view="signup"] .topbar,
body[data-view="about"] .topbar,
body[data-view="homepage"] .topbar {
    height: 56px;
    background: #fff;
    border-bottom: 1px solid #e6e6e6;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 26px;
}

body[data-view="login"] .brand,
body[data-view="signup"] .brand,
body[data-view="about"] .brand {
    font-weight: 700;
    letter-spacing: 0.2px;
    color: #b65b17;
    user-select: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

body[data-view="login"] .brand img,
body[data-view="signup"] .brand img,
body[data-view="about"] .brand img {
    height: 34px;
    width: auto;
    display: block;
}

body[data-view="login"] .brand span,
body[data-view="signup"] .brand span,
body[data-view="about"] .brand span,
body[data-view="homepage"] .brand span { color: var(--accent); }

body[data-view="login"] .navlinks a,
body[data-view="signup"] .navlinks a,
body[data-view="about"] .navlinks a,
body[data-view="homepage"] .navlinks a {
    color: #8b8b8b;
    text-decoration: none;
    margin-left: 18px;
    font-size: 14px;
}

body[data-view="login"] .navlinks a:hover,
body[data-view="signup"] .navlinks a:hover,
body[data-view="about"] .navlinks a:hover,
body[data-view="homepage"] .navlinks a:hover { color: #4a4a4a; }

body[data-view="login"] .page {
    min-height: calc(100vh - 56px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 16px;
}

body[data-view="signup"] .page {
    min-height: calc(100vh - 56px);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 46px 16px;
}

body[data-view="login"] .card,
body[data-view="signup"] .card {
    width: 520px;
    max-width: 100%;
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

body[data-view="login"] .card { padding: 34px 44px 30px; }
body[data-view="signup"] .card { overflow: hidden; }

body[data-view="signup"] .card h1 {
    margin: 0;
    text-align: center;
    font-size: 34px;
    font-weight: 400;
    color: #4a4a4a;
    padding: 22px 30px;
    border-bottom: 1px solid #efefef;
}

body[data-view="signup"] .body { padding: 22px 30px 28px; }

body[data-view="login"] .card h1 {
    margin: 0 0 24px;
    text-align: center;
    font-size: 34px;
    font-weight: 400;
    color: #4a4a4a;
}

body[data-view="login"] label,
body[data-view="signup"] label {
    display: block;
    color: var(--muted);
    font-size: 13px;
    margin: 16px 0 8px;
}

body[data-view="signup"] label { margin: 14px 0 8px; }

body[data-view="login"] input[type="text"],
body[data-view="login"] input[type="password"],
body[data-view="signup"] input[type="text"],
body[data-view="signup"] input[type="password"],
body[data-view="signup"] input[type="email"],
body[data-view="signup"] input[type="date"] {
    width: 100%;
    height: 38px;
    border-radius: 4px;
    border: 1px solid #cfcfcf;
    padding: 8px 10px;
    outline: none;
}

body[data-view="login"] input[type="text"]:focus,
body[data-view="login"] input[type="password"]:focus,
body[data-view="signup"] input:focus { border-color: #9c9c9c; }

body[data-view="login"] .btn,
body[data-view="signup"] .btn {
    width: 100%;
    margin-top: 20px;
    height: 40px;
    border: none;
    border-radius: 4px;
    color: #fff;
    font-size: 12px;
    letter-spacing: 0.5px;
    cursor: pointer;
}

body[data-view="login"] .btn { background: #22282c; }
body[data-view="signup"] .btn { background: #2b62ff; margin-top: 18px; }

body[data-view="login"] .btn:hover { background: #151a1d; }
body[data-view="signup"] .btn:hover { background: #1f4fe0; }

body[data-view="login"] .btn[disabled],
body[data-view="signup"] .btn[disabled] { opacity: 0.85; cursor: not-allowed; }

body[data-view="login"] .btn-spinner,
body[data-view="signup"] .btn-spinner {
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: #ffffff;
    border-radius: 50%;
    display: inline-block;
    animation: spin 0.9s linear infinite;
    vertical-align: -2px;
}

body[data-view="login"] .btn-loading,
body[data-view="signup"] .btn-loading {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

body[data-view="login"] .btn-label-loading,
body[data-view="signup"] .btn-label-loading { display: none; }

body[data-view="login"] .btn.is-loading .btn-label,
body[data-view="signup"] .btn.is-loading .btn-label { display: none; }

body[data-view="login"] .btn.is-loading .btn-label-loading,
body[data-view="signup"] .btn.is-loading .btn-label-loading { display: inline; }

body[data-view="login"] .below {
    margin-top: 16px;
    text-align: center;
    font-size: 13px;
    color: var(--muted);
}

body[data-view="login"] .below a { color: #2b62ff; text-decoration: none; font-weight: 600; margin-left: 4px; }
body[data-view="login"] .below a:hover { text-decoration: underline; }

body[data-view="login"] .error {
    background: #fff2f2;
    border: 1px solid #ffc7c7;
    color: #a10000;
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 13px;
    margin-bottom: 10px;
}

body[data-view="login"] .footnote,
body[data-view="signup"] .footnote { margin-top: 12px; color: #9a9a9a; font-size: 12px; text-align: center; }

body[data-view="signup"] .row { display: grid; gap: 12px; }
body[data-view="signup"] .row.two { grid-template-columns: 1fr 1fr; }
body[data-view="signup"] .row.three { grid-template-columns: 1fr 1fr 1fr; }

body[data-view="signup"] .notice { border-radius: 6px; font-size: 13px; padding: 10px 12px; margin-bottom: 10px; }
body[data-view="signup"] .error { background: #fff2f2; border: 1px solid #ffc7c7; color: #a10000; }
body[data-view="signup"] .success { background: #f0fff4; border: 1px solid #b7f5c7; color: #166534; }

@media (max-width: 720px) {
    body[data-view="signup"] { background: var(--bg); }
    body[data-view="signup"] .row.two, body[data-view="signup"] .row.three { grid-template-columns: 1fr; }
}

body[data-view="about"] .page { max-width: 980px; margin: 70px auto; padding: 0 20px; }
body[data-view="about"] .hero {
    background: var(--hero);
    border-radius: var(--radius);
    padding: 34px 38px;
    box-shadow: var(--shadow);
}
body[data-view="about"] .hero-grid {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 30px;
    align-items: center;
}
body[data-view="about"] .hero-logo {
    font-size: 44px;
    font-weight: 700;
    line-height: 1;
    color: #7a7a7a;
}
body[data-view="about"] .hero-logo .accent { color: var(--accent); }
body[data-view="about"] .hero h1 {
    margin: 0;
    font-size: 34px;
    font-weight: 400;
    text-align: center;
}
body[data-view="about"] .hero p {
    margin: 10px 0 0;
    color: #4d4d4d;
    text-align: center;
    font-size: 16px;
    line-height: 1.75;
}
body[data-view="about"] .card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 26px 30px;
    margin-top: 28px;
    box-shadow: var(--shadow);
}
body[data-view="about"] .card h2 {
    margin: 0 0 14px;
    font-size: 34px;
    font-weight: 400;
    color: #4a4a4a;
}
body[data-view="about"] .card p {
    margin: 12px 0;
    color: var(--muted);
    line-height: 1.7;
    font-size: 14px;
}
body[data-view="about"] .footnote { margin-top: 10px; color: #9a9a9a; font-size: 12px; }
@media (max-width: 760px) {
    body[data-view="about"] .hero-grid { grid-template-columns: 1fr; }
    body[data-view="about"] .hero h1 { text-align: left; }
    body[data-view="about"] .hero p { text-align: left; }
}

body[data-view="homepage"] .page { max-width: 980px; margin: 70px auto; padding: 0 20px; }
body[data-view="homepage"] .card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 26px 30px;
    margin-top: 28px;
    box-shadow: var(--shadow);
}
body[data-view="homepage"] .header-row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
body[data-view="homepage"] .header-row h1 {
    margin: 0;
    font-size: 34px;
    font-weight: 400;
    color: #4a4a4a;
}
body[data-view="homepage"] .subtitle { margin-top: 6px; color: var(--muted); font-size: 14px; }
body[data-view="homepage"] .search { display: flex; gap: 8px; align-items: center; }
body[data-view="homepage"] .search input {
    height: 38px;
    border-radius: 4px;
    border: 1px solid #cfcfcf;
    padding: 8px 10px;
    min-width: 260px;
}
body[data-view="homepage"] .search button {
    height: 38px;
    border-radius: 4px;
    border: none;
    background: #22282c;
    color: #fff;
    padding: 0 14px;
    cursor: pointer;
}
body[data-view="homepage"] .search button:hover { background: #151a1d; }
body[data-view="homepage"] .feed-list { display: grid; gap: 12px; margin-top: 16px; }
body[data-view="homepage"] .feed-item {
    display: grid;
    grid-template-columns: 52px 1fr;
    gap: 12px;
    padding: 12px;
    border: 1px solid rgba(0,0,0,0.08);
    border-radius: 10px;
    background: #fff;
}
body[data-view="homepage"] .feed-thumb {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: #e9eef5;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #1f2937;
}
body[data-view="homepage"] .feed-title {
    margin: 0;
    font-size: 14px;
    font-weight: 700;
    color: #111827;
}
body[data-view="homepage"] .feed-meta { margin-top: 4px; font-size: 12px; color: var(--muted); }
body[data-view="homepage"] .feed-desc { margin-top: 8px; font-size: 13px; color: #4a4a4a; line-height: 1.6; }
@media (max-width: 760px) { body[data-view="homepage"] .search input { min-width: 180px; } }