:root {
    --theme-shell-glow: rgba(54, 92, 245, 0.08);
    --theme-shell-gradient-start: #f8fbff;
    --theme-shell-gradient-end: #f3f6fb;
    --theme-auth-glow-primary: rgba(226, 55, 68, 0.16);
    --theme-auth-glow-secondary: rgba(54, 92, 245, 0.12);
    --theme-auth-gradient-start: #f4f7ff;
    --theme-auth-gradient-end: #edf1fb;
    --theme-auth-card-bg: rgba(255, 255, 255, 0.96);
    --theme-header-bg: rgba(243, 246, 251, 0.82);
    --theme-header-border: rgba(223, 230, 241, 0.9);
    --theme-header-shadow: 0 8px 24px rgba(145, 158, 171, 0.16);
    --theme-sidebar-icon-bg: rgba(26, 33, 66, 0.06);
    --theme-sidebar-icon-bg-active: rgba(54, 92, 245, 0.16);
    --theme-input-bg: #ffffff;
    --theme-button-bg: #ffffff;
    --theme-button-hover-border: rgba(54, 92, 245, 0.26);
    --theme-card-shadow: 0 6px 18px rgba(145, 158, 171, 0.1);
    --theme-page-state-border: rgba(54, 92, 245, 0.24);
    --theme-page-state-start: rgba(248, 250, 255, 0.95);
    --theme-page-state-end: rgba(238, 243, 255, 0.9);
    --theme-status-label: #7a8398;
    --theme-video-thumb-bg: #eef3ff;
    --theme-player-placeholder-border: rgba(54, 92, 245, 0.25);
    --theme-player-placeholder-start: rgba(54, 92, 245, 0.06);
    --theme-player-placeholder-end: rgba(111, 141, 255, 0.08);
    --theme-account-status-bg: rgba(54, 92, 245, 0.08);
    --theme-account-status-border: rgba(54, 92, 245, 0.16);
    --theme-account-status-error-bg: rgba(226, 55, 68, 0.08);
    --theme-account-status-error-border: rgba(226, 55, 68, 0.2);
    --theme-account-status-error-text: #9f2431;
    --theme-account-status-success-bg: rgba(35, 147, 92, 0.08);
    --theme-account-status-success-border: rgba(35, 147, 92, 0.22);
    --theme-account-status-success-text: #15603b;
    --theme-header-account-shadow: 0 12px 28px rgba(145, 158, 171, 0.14);
    --theme-menu-shadow: 0 18px 40px rgba(31, 42, 68, 0.16);
    --theme-sidebar-toggle-bg: rgba(255, 255, 255, 0.92);
    --theme-sidebar-toggle-border: rgba(223, 230, 241, 0.96);
    --theme-sidebar-toggle-icon: #1f2a44;
    --theme-sidebar-toggle-hover-bg: #ffffff;
    --theme-sidebar-toggle-hover-border: rgba(54, 92, 245, 0.26);
    --theme-sidebar-toggle-active-bg: rgba(238, 243, 255, 0.96);
    --theme-sidebar-toggle-focus: rgba(54, 92, 245, 0.22);
}

html[data-theme="dark"] {
    --pa-body-bg: #0f172a;
    --pa-sidebar-bg: #111a2d;
    --pa-surface: #162235;
    --pa-surface-2: #1d2b40;
    --pa-border: #2c3d58;
    --pa-shadow: 0 18px 34px rgba(3, 7, 18, 0.42), 0 0 1px rgba(148, 163, 184, 0.22);
    --pa-text: #e5eefc;
    --pa-muted: #a4b4cb;
    --pa-accent: #82a7ff;
    --pa-accent-soft: rgba(130, 167, 255, 0.16);
    --pa-danger: #ff7b88;
    --pa-success: #58d4a0;
    --theme-shell-glow: rgba(130, 167, 255, 0.14);
    --theme-shell-gradient-start: #111827;
    --theme-shell-gradient-end: #0f172a;
    --theme-auth-glow-primary: rgba(255, 77, 94, 0.16);
    --theme-auth-glow-secondary: rgba(130, 167, 255, 0.14);
    --theme-auth-gradient-start: #0b1220;
    --theme-auth-gradient-end: #111827;
    --theme-auth-card-bg: rgba(17, 26, 45, 0.96);
    --theme-header-bg: rgba(15, 23, 42, 0.86);
    --theme-header-border: rgba(44, 61, 88, 0.92);
    --theme-header-shadow: 0 10px 28px rgba(2, 6, 23, 0.46);
    --theme-sidebar-icon-bg: rgba(148, 163, 184, 0.12);
    --theme-sidebar-icon-bg-active: rgba(130, 167, 255, 0.24);
    --theme-input-bg: #111a2d;
    --theme-button-bg: #162235;
    --theme-button-hover-border: rgba(130, 167, 255, 0.34);
    --theme-card-shadow: 0 10px 24px rgba(2, 6, 23, 0.3);
    --theme-page-state-border: rgba(130, 167, 255, 0.3);
    --theme-page-state-start: rgba(20, 30, 48, 0.96);
    --theme-page-state-end: rgba(17, 26, 45, 0.94);
    --theme-status-label: #8fa6c8;
    --theme-video-thumb-bg: #1b2940;
    --theme-player-placeholder-border: rgba(130, 167, 255, 0.28);
    --theme-player-placeholder-start: rgba(130, 167, 255, 0.12);
    --theme-player-placeholder-end: rgba(41, 64, 117, 0.24);
    --theme-account-status-bg: rgba(130, 167, 255, 0.14);
    --theme-account-status-border: rgba(130, 167, 255, 0.24);
    --theme-account-status-error-bg: rgba(255, 123, 136, 0.12);
    --theme-account-status-error-border: rgba(255, 123, 136, 0.24);
    --theme-account-status-error-text: #ffb3bc;
    --theme-account-status-success-bg: rgba(88, 212, 160, 0.12);
    --theme-account-status-success-border: rgba(88, 212, 160, 0.26);
    --theme-account-status-success-text: #aef1d3;
    --theme-header-account-shadow: 0 16px 32px rgba(2, 6, 23, 0.34);
    --theme-menu-shadow: 0 24px 42px rgba(2, 6, 23, 0.42);
    --theme-sidebar-toggle-bg: rgba(17, 26, 45, 0.94);
    --theme-sidebar-toggle-border: rgba(44, 61, 88, 0.96);
    --theme-sidebar-toggle-icon: #e5eefc;
    --theme-sidebar-toggle-hover-bg: rgba(22, 34, 53, 0.98);
    --theme-sidebar-toggle-hover-border: rgba(130, 167, 255, 0.34);
    --theme-sidebar-toggle-active-bg: rgba(29, 43, 64, 0.98);
    --theme-sidebar-toggle-focus: rgba(130, 167, 255, 0.3);
}

body {
    color: var(--pa-muted);
    background:
        radial-gradient(circle at top right, var(--theme-shell-glow), transparent 28%),
        linear-gradient(180deg, var(--theme-shell-gradient-start) 0%, var(--theme-shell-gradient-end) 100%);
}

.panel {
    background: var(--pa-surface);
    border: 1px solid var(--pa-border);
    border-radius: 18px;
    padding: 24px;
    box-shadow: var(--pa-shadow);
}

.panel h2,
.panel h3 {
    margin: 0;
    color: var(--pa-text);
}

.panel p {
    margin: 0;
}

.muted {
    color: var(--pa-muted);
}

.toolbar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin: 20px 0 16px;
}

.field {
    display: grid;
    gap: 8px;
}

.field span {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--pa-text);
}

.field input,
.field select {
    width: 100%;
    min-height: 48px;
    border: 1px solid var(--pa-border);
    border-radius: 12px;
    padding: 12px 14px;
    background: #fff;
    color: var(--pa-text);
}

.field input:focus,
.field select:focus {
    border-color: rgba(54, 92, 245, 0.45);
    outline: 2px solid rgba(54, 92, 245, 0.14);
    outline-offset: 0;
}

.placeholder-list {
    display: grid;
    gap: 18px;
}

.placeholder-card {
    border: 1px solid var(--pa-border);
    border-radius: 16px;
    padding: 20px;
    background: var(--pa-surface);
    box-shadow: 0 6px 18px rgba(145, 158, 171, 0.1);
}

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

.placeholder-card a {
    color: var(--pa-accent);
    text-decoration: none;
}

.placeholder-card a:hover {
    text-decoration: underline;
}

.page-state {
    border: 1px dashed rgba(54, 92, 245, 0.24);
    border-radius: 16px;
    padding: 22px;
    background: linear-gradient(180deg, rgba(248, 250, 255, 0.95), rgba(238, 243, 255, 0.9));
    display: grid;
    gap: 10px;
}

.page-state h3 {
    margin: 0;
}

.page-state p {
    color: var(--pa-muted);
    line-height: 1.6;
}

.page-state a {
    color: var(--pa-accent);
    font-weight: 700;
    text-decoration: none;
}

.page-state a:hover {
    text-decoration: underline;
}

.page-state--loading {
    width: min(560px, 100%);
}

.status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
    margin-top: 20px;
}

.status-card {
    border: 1px solid var(--pa-border);
    border-radius: 16px;
    padding: 18px;
    background: var(--pa-surface-2);
    display: grid;
    gap: 8px;
}

.status-card__label {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #7a8398;
}

.status-card__value {
    color: var(--pa-text);
    font-size: 1.4rem;
    font-weight: 700;
}

.video-card {
    display: grid;
    grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
    gap: 18px;
    align-items: start;
}

.video-card__thumbnail {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 14px;
    border: 1px solid var(--pa-border);
    background: #eef3ff;
}

.video-card__thumbnail--placeholder {
    display: grid;
    place-items: center;
    color: var(--pa-muted);
}

.video-card__body {
    display: grid;
    gap: 12px;
    min-width: 0;
}

.video-card__title {
    color: var(--pa-text);
    font-size: 1.16rem;
    font-weight: 700;
    text-decoration: none;
}

.video-card__title:hover {
    color: var(--pa-accent);
}

.video-card__description {
    border: 1px solid var(--pa-border);
    border-radius: 12px;
    background: var(--pa-surface-2);
    padding: 12px 14px;
}

.video-card__description summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--pa-text);
}

.video-card__description p {
    margin-top: 10px;
    white-space: pre-wrap;
}

.video-card__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.video-card__actions a,
.video-card__actions button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 42px;
    border-radius: 12px;
    border: 1px solid var(--pa-border);
    background: #fff;
    padding: 10px 14px;
    color: var(--pa-text);
    text-decoration: none;
    cursor: pointer;
}

.video-card__actions a:hover,
.video-card__actions button:hover:not(:disabled) {
    border-color: rgba(54, 92, 245, 0.26);
    color: var(--pa-accent);
}

.video-card__actions button:disabled {
    cursor: not-allowed;
    opacity: 0.7;
}

.playlist-card {
    display: grid;
    gap: 12px;
}

.playlist-card__title {
    color: var(--pa-text);
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
}

.playlist-card__title:hover {
    color: var(--pa-accent);
}

.playlist-card__description {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
}

.playlist-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.player-placeholder {
    aspect-ratio: 16 / 9;
    width: 100%;
    border: 1px dashed rgba(54, 92, 245, 0.25);
    border-radius: 18px;
    display: grid;
    place-items: center;
    color: var(--pa-muted);
    background: linear-gradient(135deg, rgba(54, 92, 245, 0.06), rgba(111, 141, 255, 0.08));
    padding: 20px;
    text-align: center;
}

.player-frame {
    width: 100%;
    aspect-ratio: 16 / 9;
    border: 0;
    border-radius: 18px;
    background: #000;
}

.video-detail {
    display: grid;
    gap: 18px;
}

.video-detail__meta {
    display: grid;
    gap: 12px;
}

.video-detail__meta-item {
    border: 1px solid var(--pa-border);
    border-radius: 12px;
    padding: 12px 14px;
    background: var(--pa-surface-2);
}

.video-detail__description {
    white-space: pre-wrap;
    line-height: 1.7;
}

.page-callout {
    display: grid;
    gap: 12px;
}

.page-callout__title {
    color: var(--pa-text);
    font-size: 1.1rem;
    font-weight: 700;
}

.auth-shell {
    min-height: 100vh;
    padding: 32px 20px;
    background:
        radial-gradient(circle at top left, rgba(226, 55, 68, 0.16), transparent 34%),
        radial-gradient(circle at bottom right, rgba(54, 92, 245, 0.12), transparent 30%),
        linear-gradient(180deg, #f4f7ff 0%, #edf1fb 100%);
}

.auth-shell__root {
    min-height: calc(100vh - 64px);
    display: grid;
    place-items: center;
}

.login-screen {
    width: min(1080px, 100%);
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 420px);
    gap: 24px;
    align-items: stretch;
}

.login-screen__brand,
.login-screen__card {
    border-radius: 24px;
}

.login-screen__brand {
    padding: 36px;
    background: linear-gradient(145deg, #0f172a 0%, #1f2a44 100%);
    color: #fff;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.22);
    display: grid;
    gap: 18px;
}

.login-screen__card {
    padding: 36px 32px;
    display: grid;
    align-content: center;
    gap: 18px;
    background: rgba(255, 255, 255, 0.96);
}

.login-screen__mark {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    display: grid;
    place-items: center;
    background: linear-gradient(145deg, #ff4d5e 0%, #ff7a45 100%);
    color: #fff;
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 0.08em;
}

.login-screen__eyebrow {
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.login-screen__headline {
    margin: 0;
    color: #fff;
    font-size: clamp(2rem, 3vw, 3rem);
    line-height: 1.05;
}

.login-screen__copy {
    color: rgba(255, 255, 255, 0.82);
    line-height: 1.7;
}

.login-screen__list {
    margin: 8px 0 0;
    padding-left: 20px;
    color: rgba(255, 255, 255, 0.88);
    display: grid;
    gap: 10px;
}

.login-screen__title {
    margin: 0;
    color: var(--pa-text);
    font-size: 1.9rem;
}

.login-screen__text,
.login-screen__note {
    color: var(--pa-muted);
    line-height: 1.6;
}

.login-screen__google-button {
    min-height: 52px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 20px;
    background: #fff;
    border: 1px solid var(--pa-border);
    box-shadow: 0 12px 24px rgba(145, 158, 171, 0.16);
    color: var(--pa-text);
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.login-screen__google-button:hover {
    transform: translateY(-1px);
    border-color: rgba(54, 92, 245, 0.25);
    box-shadow: 0 16px 30px rgba(145, 158, 171, 0.2);
    color: var(--pa-accent);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

.sidebar-toggle-button {
    min-width: 52px;
    min-height: 52px;
    padding: 0;
    border-radius: 14px;
    border: 1px solid var(--theme-sidebar-toggle-border);
    background: var(--theme-sidebar-toggle-bg);
    color: var(--theme-sidebar-toggle-icon);
    box-shadow: var(--theme-header-account-shadow);
    transition:
        background-color 0.2s ease,
        border-color 0.2s ease,
        box-shadow 0.2s ease,
        color 0.2s ease;
}

.sidebar-toggle-button__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    font-size: 1.45rem;
    line-height: 1;
    color: var(--pa-text);
    transition: transform 0.2s ease, color 0.2s ease;
}

.sidebar-toggle-button:hover .sidebar-toggle-button__icon {
    color: var(--pa-accent);
}

.sidebar-toggle-button:hover {
    background: var(--theme-sidebar-toggle-hover-bg);
    border-color: var(--theme-sidebar-toggle-hover-border);
}

.sidebar-toggle-button:focus-visible {
    outline: 2px solid var(--theme-sidebar-toggle-focus);
    outline-offset: 2px;
}

.sidebar-toggle-button:active {
    background: var(--theme-sidebar-toggle-active-bg);
}

.sidebar-toggle-button[data-state="collapsed"] .sidebar-toggle-button__icon {
    transform: translateX(1px);
}

.sidebar-toggle-button[data-state="expanded"] .sidebar-toggle-button__icon {
    transform: translateX(-1px);
}

.header__right {
    position: relative;
}

.header-account {
    position: relative;
    display: grid;
    justify-items: end;
    gap: 8px;
}

.header-account__status {
    margin: 0;
    max-width: min(320px, 78vw);
    padding: 8px 12px;
    border-radius: 12px;
    border: 1px solid rgba(54, 92, 245, 0.16);
    background: rgba(54, 92, 245, 0.08);
    color: var(--pa-text);
    font-size: 0.85rem;
    line-height: 1.4;
    text-align: right;
}

.header-account__status[data-tone="error"] {
    border-color: rgba(226, 55, 68, 0.2);
    background: rgba(226, 55, 68, 0.08);
    color: #9f2431;
}

.header-account__status[data-tone="success"] {
    border-color: rgba(35, 147, 92, 0.22);
    background: rgba(35, 147, 92, 0.08);
    color: #15603b;
}

.header-account__trigger {
    min-height: 56px;
    min-width: min(320px, 78vw);
    border-radius: 16px;
    border: 1px solid var(--pa-border);
    background: #fff;
    box-shadow: 0 12px 28px rgba(145, 158, 171, 0.14);
    padding: 10px 14px;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 12px;
    align-items: center;
    cursor: pointer;
    text-align: left;
}

.header-account__trigger:hover {
    border-color: rgba(54, 92, 245, 0.24);
}

.header-account__trigger:focus-visible,
.header-account__action:focus-visible {
    outline: 2px solid rgba(54, 92, 245, 0.22);
    outline-offset: 2px;
}

.header-account__avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    display: grid;
    place-items: center;
    background: linear-gradient(145deg, #eef3ff 0%, #f8fbff 100%);
    color: var(--pa-accent);
    border: 1px solid rgba(54, 92, 245, 0.12);
}

.header-account__avatar-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.header-account__avatar-fallback {
    display: grid;
    place-items: center;
}

.header-account__summary {
    min-width: 0;
    display: grid;
    gap: 2px;
}

.header-account__name,
.header-account__menu-name {
    color: var(--pa-text);
    font-size: 0.95rem;
    font-weight: 700;
}

.header-account__meta,
.header-account__menu-meta {
    color: var(--pa-muted);
    font-size: 0.82rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.header-account__chevron {
    color: var(--pa-muted);
    font-size: 0.9rem;
    transition: transform 0.2s ease, color 0.2s ease;
}

.header-account__menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: min(360px, 88vw);
    border-radius: 18px;
    border: 1px solid var(--pa-border);
    background: #fff;
    box-shadow: 0 18px 40px rgba(31, 42, 68, 0.16);
    padding: 18px;
    display: grid;
    gap: 16px;
    z-index: 20;
}

.header-account__menu[hidden] {
    display: none;
}

.header-account[data-open="true"] .header-account__chevron {
    transform: rotate(180deg);
}

.header-account__menu-profile {
    display: grid;
    gap: 6px;
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(145, 158, 171, 0.2);
}

.header-account__menu-profile p {
    margin: 0;
}

.header-account__menu-label {
    color: var(--pa-accent);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.header-account__menu-copy {
    color: var(--pa-muted);
    font-size: 0.84rem;
    line-height: 1.5;
}

.header-account__actions {
    display: grid;
    gap: 10px;
}

.header-account__action {
    min-height: 46px;
    border-radius: 14px;
    border: 1px solid var(--pa-border);
    background: #fff;
    color: var(--pa-text);
    padding: 0 14px;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
}

.header-account__action:hover:not(:disabled) {
    border-color: rgba(54, 92, 245, 0.24);
    color: var(--pa-accent);
}

.header-account__action:disabled {
    opacity: 0.72;
    cursor: wait;
}

.header-account__action[data-pending="true"] {
    border-color: rgba(54, 92, 245, 0.26);
    background: rgba(54, 92, 245, 0.05);
    color: var(--pa-accent);
}

@media (max-width: 900px) {
    .video-card {
        grid-template-columns: 1fr;
    }

    .login-screen {
        grid-template-columns: 1fr;
    }

    .header__inner {
        align-items: start;
        gap: 16px;
    }

    .header__right {
        width: 100%;
    }

    .header-account {
        justify-items: stretch;
    }

    .header-account__status,
    .header-account__trigger {
        max-width: none;
        min-width: 0;
        width: 100%;
        text-align: left;
    }

    .header-account__menu {
        width: 100%;
    }
}

@media (max-width: 720px) {
    .panel {
        padding: 18px;
    }

    .toolbar,
    .status-grid {
        grid-template-columns: 1fr;
    }

    .auth-shell {
        padding: 16px;
    }

    .login-screen__brand,
    .login-screen__card {
        padding: 24px;
    }
}

.field input,
.field select,
.video-card__actions a,
.video-card__actions button,
.login-screen__google-button,
.header-account__trigger,
.header-account__action {
    background: var(--theme-button-bg);
}

.field input,
.field select {
    background: var(--theme-input-bg);
}

.placeholder-card {
    box-shadow: var(--theme-card-shadow);
}

.page-state {
    border-color: var(--theme-page-state-border);
    background: linear-gradient(180deg, var(--theme-page-state-start), var(--theme-page-state-end));
}

.status-card__label {
    color: var(--theme-status-label);
}

.video-card__thumbnail {
    background: var(--theme-video-thumb-bg);
}

.player-placeholder {
    border-color: var(--theme-player-placeholder-border);
    background: linear-gradient(135deg, var(--theme-player-placeholder-start), var(--theme-player-placeholder-end));
}

.auth-shell {
    background:
        radial-gradient(circle at top left, var(--theme-auth-glow-primary), transparent 34%),
        radial-gradient(circle at bottom right, var(--theme-auth-glow-secondary), transparent 30%),
        linear-gradient(180deg, var(--theme-auth-gradient-start) 0%, var(--theme-auth-gradient-end) 100%);
}

.login-screen__card {
    background: var(--theme-auth-card-bg);
}

.login-screen__google-button:hover,
.video-card__actions a:hover,
.video-card__actions button:hover:not(:disabled),
.header-account__trigger:hover,
.header-account__action:hover:not(:disabled) {
    border-color: var(--theme-button-hover-border);
}

.theme-toggle-button {
    min-height: 56px;
    border-radius: 16px;
    padding: 0 14px;
    background: var(--theme-button-bg);
}

.theme-toggle-button__icon {
    font-size: 1rem;
    line-height: 1;
}

.theme-toggle-button__label {
    font-size: 0.92rem;
    font-weight: 700;
}

.header-account__status {
    border-color: var(--theme-account-status-border);
    background: var(--theme-account-status-bg);
}

.header-account__status[data-tone="error"] {
    border-color: var(--theme-account-status-error-border);
    background: var(--theme-account-status-error-bg);
    color: var(--theme-account-status-error-text);
}

.header-account__status[data-tone="success"] {
    border-color: var(--theme-account-status-success-border);
    background: var(--theme-account-status-success-bg);
    color: var(--theme-account-status-success-text);
}

.header-account__trigger {
    box-shadow: var(--theme-header-account-shadow);
}

.header-account__avatar {
    background: linear-gradient(145deg, var(--theme-video-thumb-bg) 0%, var(--pa-surface-2) 100%);
}

.header-account__menu {
    background: var(--pa-surface);
    box-shadow: var(--theme-menu-shadow);
}

html[data-theme="dark"] .header {
    background: var(--theme-header-bg);
    border-bottom-color: var(--theme-header-border);
}

html[data-theme="dark"] .header.header-shadow {
    box-shadow: var(--theme-header-shadow);
}

html[data-theme="dark"] .sidebar-nav .nav-link__icon {
    background: var(--theme-sidebar-icon-bg);
}

html[data-theme="dark"] .sidebar-nav .nav-link.is-active .nav-link__icon,
html[data-theme="dark"] .sidebar-nav .nav-link:hover .nav-link__icon {
    background: var(--theme-sidebar-icon-bg-active);
}

html[data-theme="dark"] .breadcrumb li:not(:last-child)::after {
    color: var(--pa-muted);
}

html[data-theme="dark"] .theme-toggle-button,
html[data-theme="dark"] .login-screen__card,
html[data-theme="dark"] .panel,
html[data-theme="dark"] .placeholder-card,
html[data-theme="dark"] .page-state,
html[data-theme="dark"] .status-card,
html[data-theme="dark"] .video-detail__meta-item,
html[data-theme="dark"] .video-card__description,
html[data-theme="dark"] .field input,
html[data-theme="dark"] .field select,
html[data-theme="dark"] .video-card__actions a,
html[data-theme="dark"] .video-card__actions button,
html[data-theme="dark"] .header-account__trigger,
html[data-theme="dark"] .header-account__menu,
html[data-theme="dark"] .header-account__action {
    color: var(--pa-text);
}

@media (max-width: 900px) {
    .header__right {
        justify-content: space-between;
        align-items: start;
    }

    .theme-toggle-button {
        min-width: 120px;
        justify-content: center;
    }
}