/* Root & Theme */
:root {
    color-scheme: dark;
    --color-bg: #0f0f0f;
    --color-surface: #181818;
    --color-surface-alt: #202020;
    --color-surface-soft: rgba(255, 255, 255, 0.04);
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-strong: rgba(255, 255, 255, 0.16);
    --color-header-bg: rgba(15, 15, 15, 0.95);
    --color-sidenav-bg: rgba(24, 24, 24, 0.88);
    --color-card-bg: #1f1f1f;
    --color-card-hover: rgba(255, 255, 255, 0.08);
    --color-input-bg: rgba(0, 0, 0, 0.35);
    --color-input-border: rgba(255, 255, 255, 0.12);
    --color-text: #f5f5f5;
    --color-text-muted: #b3b3b3;
    --color-text-subtle: rgba(255, 255, 255, 0.65);
    --color-accent: #ff0000;
    --color-accent-soft: rgba(255, 0, 0, 0.15);
    --color-success: #22c55e;
    --color-warning: #facc15;
    --color-danger: #ef4444;
    --color-elevated-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
    --radius-md: 12px;
    --radius-lg: 18px;
    --shadow-soft: 0 18px 40px rgba(0, 0, 0, 0.35);
    --spacing-unit: clamp(16px, 1.5vw, 24px);
    font-family: "Roboto", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
}

body.theme-light {
    color-scheme: light;
    --color-bg: #f5f6fb;
    --color-surface: #ffffff;
    --color-surface-alt: #f3f4f8;
    --color-surface-soft: rgba(15, 23, 42, 0.04);
    --color-border: rgba(15, 23, 42, 0.08);
    --color-border-strong: rgba(15, 23, 42, 0.16);
    --color-header-bg: rgba(255, 255, 255, 0.95);
    --color-sidenav-bg: rgba(246, 247, 252, 0.96);
    --color-card-bg: #ffffff;
    --color-card-hover: rgba(15, 23, 42, 0.06);
    --color-input-bg: rgba(255, 255, 255, 0.86);
    --color-input-border: rgba(15, 23, 42, 0.12);
    --color-text: #0f172a;
    --color-text-muted: #475569;
    --color-text-subtle: #64748b;
    --color-accent: #ff1b4b;
    --color-accent-soft: rgba(255, 27, 75, 0.16);
    --color-success: #16a34a;
    --color-warning: #eab308;
    --color-danger: #dc2626;
    --color-elevated-shadow: 0 18px 40px rgba(15, 23, 42, 0.12);
    background-color: var(--color-bg);
    color: var(--color-text);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    min-height: 100%;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    display: block;
    max-width: 100%;
    border-radius: calc(var(--radius-md) - 4px);
}

.container {
    width: min(100%, 1200px);
    margin: 0 auto;
    padding: 0 clamp(16px, 2vw, 32px);
}

.layout-app {
    background-color: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.layout-minimal {
    background-color: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
}

/* Iconography */
.icon-button,
.primary-btn,
.ghost-btn,
.reaction-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border: none;
    cursor: pointer;
    transition: 0.2s ease;
    font: inherit;
    color: inherit;
    background: none;
}

.icon-button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: transparent;
    color: inherit;
}

.icon-button:hover {
    background-color: var(--color-card-hover);
}

.theme-toggle {
    position: relative;
    background-color: var(--color-surface-soft);
    border: 1px solid var(--color-border);
}

.theme-toggle__icon {
    position: absolute;
    inset: 0;
    margin: auto;
    width: 1.15rem;
    height: 1.15rem;
    transition: opacity 0.2s ease;
}

.theme-toggle__icon--moon {
    opacity: 0;
}

body.theme-light .theme-toggle__icon--sun,
.theme-toggle[data-theme="light"] .theme-toggle__icon--sun {
    opacity: 0;
}

body.theme-light .theme-toggle__icon--moon,
.theme-toggle[data-theme="light"] .theme-toggle__icon--moon {
    opacity: 1;
}

.primary-btn {
    padding: 0.6rem 1.2rem;
    border-radius: 999px;
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-weight: 600;
}

body.theme-light .primary-btn {
    background-color: var(--color-accent);
    color: #fff;
}

.primary-btn--solid {
    background: var(--color-accent);
    color: #fff;
    box-shadow: 0 10px 25px rgba(255, 0, 0, 0.35);
}

body.theme-light .primary-btn--solid {
    box-shadow: 0 12px 26px rgba(255, 27, 75, 0.28);
}

.primary-btn--danger {
    background: var(--color-danger);
    box-shadow: 0 10px 25px rgba(239, 68, 68, 0.35);
}

.primary-btn:hover {
    transform: translateY(-1px);
    opacity: 0.92;
}

.ghost-btn {
    padding: 0.5rem 1rem;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-text-muted);
}

.ghost-btn:hover {
    border-color: var(--color-border-strong);
    color: var(--color-text);
}

.ghost-btn--small {
    padding: 0.35rem 0.75rem;
    font-size: 0.9rem;
}

.ghost-btn--danger {
    color: var(--color-danger);
    border-color: rgba(239, 68, 68, 0.5);
}

.reaction-button {
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    background-color: rgba(255, 255, 255, 0.08);
    min-width: 70px;
}

body.theme-light .reaction-button {
    background-color: rgba(15, 23, 42, 0.08);
}

.reaction-button.is-active {
    background-color: rgba(255, 255, 255, 0.2);
    color: var(--color-accent);
}

body.theme-light .reaction-button.is-active {
    background-color: rgba(255, 27, 75, 0.18);
}

.reaction-group {
    display: inline-flex;
    gap: 0.5rem;
    background: var(--color-surface-soft);
    padding: 0.35rem;
    border-radius: 999px;
    align-items: center;
}

.icon-menu,
.icon-search,
.icon-upload,
.icon-play,
.icon-home,
.icon-trending,
.icon-like,
.icon-dislike,
.icon-save,
.icon-edit,
.icon-trash,
.icon-sun,
.icon-moon,
.icon-share,
.icon-language,
.icon-download,
.icon-settings {
    width: 1.1rem;
    height: 1.1rem;
    display: inline-block;
    background-color: currentColor;
    mask-size: contain;
    mask-repeat: no-repeat;
    mask-position: center;
    -webkit-mask-size: contain;
    -webkit-mask-repeat: no-repeat;
    -webkit-mask-position: center;
}
.icon-language { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M11.99 2a10 10 0 1 0 0 20a10 10 0 0 0 0-20Zm7.93 9h-2.14a12.36 12.36 0 0 0-1.1-4.54A8.02 8.02 0 0 1 19.92 11ZM12 4a10.88 10.88 0 0 1 2.22 5H9.78A10.88 10.88 0 0 1 12 4ZM4.08 13h2.14a12.36 12.36 0 0 0 1.1 4.54A8.02 8.02 0 0 1 4.08 13Zm2.14-2H4.08a8.02 8.02 0 0 1 3.24-4.54A12.36 12.36 0 0 0 6.22 11Zm1.83 2h7.9a10.88 10.88 0 0 1-2.21 5a10.88 10.88 0 0 1-5.68 0A10.88 10.88 0 0 1 8.05 13Zm9.73 0h2.14a8.02 8.02 0 0 1-3.24 4.54A12.36 12.36 0 0 0 17.78 13Z'/%3E%3C/svg%3E"); }
.icon-download { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M5 20h14v-2H5v2Zm7-18l-6 6h4v6h4v-6h4l-6-6Z'/%3E%3C/svg%3E"); }
.language-toggle {
    gap: 0.25rem;
}
.language-toggle__label {
    display: none;
    font-size: 0.75rem;
    text-transform: uppercase;
}
@media (min-width: 768px) {
    .language-toggle__label {
        display: inline-block;
    }
}
.icon-menu { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M3 6h18v2H3V6m0 5h18v2H3v-2m0 5h18v2H3v-2Z'/%3E%3C/svg%3E"); }
.icon-search { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M15.5 14h-.79l-.28-.27A6.5 6.5 0 1 0 9.5 16a6.5 6.5 0 0 0 4.23-1.57l.27.28h.79l5 4.99L20.49 19l-4.99-5Zm-6 0A4.5 4.5 0 1 1 14 9.5 4.5 4.5 0 0 1 9.5 14Z'/%3E%3C/svg%3E"); }
.icon-upload { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M5 20h14v-2H5v2Zm7-16-6 6h4v4h4v-4h4l-6-6Z'/%3E%3C/svg%3E"); }
.icon-play { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='m8 5 11 7-11 7V5Z'/%3E%3C/svg%3E"); }
.icon-home { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M12 3 2 12h3v8h6v-6h2v6h6v-8h3l-10-9Z'/%3E%3C/svg%3E"); }
.icon-trending { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M3 12l4-4 4 4 6-6 4 4v6H3v-4Z'/%3E%3C/svg%3E"); }
.icon-like { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M1 21h4V9H1v12Zm22-11c0-1.1-.9-2-2-2h-6.31l.95-4.57.03-.32c0-.41-.17-.79-.44-1.06L14 1 7.59 7.41C7.22 7.78 7 8.3 7 8.86V19c0 1.1.9 2 2 2h9c.83 0 1.54-.5 1.84-1.22l3-7.05c.1-.23.16-.48.16-.73v-2Z'/%3E%3C/svg%3E"); }
.icon-dislike { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M1 3h4v12H1V3Zm22 11c0 1.1-.9 2-2 2h-6.31l.95 4.57.03.32c0 .41-.17.79-.44 1.06L14 23l-6.41-6.41C7.22 16.22 7 15.7 7 15.14V5c0-1.1.9-2 2-2h9c.83 0 1.54.5 1.84 1.22l3 7.05c.1.23.16.48.16.73v2Z'/%3E%3C/svg%3E"); }
.icon-save { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M17 3H5a2 2 0 0 0-2 2v14l7-3 7 3V5a2 2 0 0 0-2-2Z'/%3E%3C/svg%3E"); }
.icon-edit { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M3 17.25V21h3.75L17.81 9.94l-3.75-3.75L3 17.25Zm2.92 1.42-1.17-1.17 8.49-8.49 1.17 1.17-8.49 8.49Zm11.24-11.24-1.17-1.17 1.41-1.41 1.17 1.17-1.41 1.41Z'/%3E%3C/svg%3E"); }
.icon-trash { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M6 19a2 2 0 0 0 2 2h8a2 2 0 0 0 2-2V7H6v12Zm3.46-9h1.5v7h-1.5v-7Zm3.58 0h1.5v7h-1.5v-7ZM15.5 4l-1-1h-5l-1 1H5v2h14V4h-3.5Z'/%3E%3C/svg%3E"); }
.icon-sun { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M12 4a1 1 0 0 1 1 1v1a1 1 0 0 1-2 0V5a1 1 0 0 1 1-1Zm6.36 1.64a1 1 0 0 1 0 1.41l-.71.71a1 1 0 0 1-1.41-1.41l.71-.71a1 1 0 0 1 1.41 0ZM12 8a4 4 0 1 1 0 8a4 4 0 0 1 0-8Zm8 4a1 1 0 0 1-1 1h-1a1 1 0 0 1 0-2h1a1 1 0 0 1 1 1Zm-8 5a1 1 0 0 1 1 1v1a1 1 0 0 1-2 0v-1a1 1 0 0 1 1-1Zm-6.36-1.64a1 1 0 0 1 1.41 0l.71.71a1 1 0 1 1-1.41 1.41l-.71-.71a1 1 0 0 1 0-1.41ZM5 11a1 1 0 0 1 0 2H4a1 1 0 0 1 0-2h1Zm1.05-5.36a1 1 0 0 1 1.41 0l.71.71A1 1 0 0 1 6.76 7.76l-.71-.71a1 1 0 0 1 0-1.41Z'/%3E%3C/svg%3E"); }
.icon-moon { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M12.41 2.05a1 1 0 0 1 .95.27a8 8 0 1 0 8.32 8.32a1 1 0 0 1 1.22 1.22a10 10 0 1 1-10.4-10.4a1 1 0 0 1 .31.59Z'/%3E%3C/svg%3E"); }
.icon-share { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M18 16a3 3 0 0 0-2.24 1.03L8.91 13.7A3 3 0 0 0 9 12a3 3 0 0 0-.09-.7l6.85-3.33A3 3 0 1 0 15 6a3 3 0 0 0 .09.7L8.24 10A3 3 0 1 0 9 14c0-.24-.03-.47-.09-.7l6.85 3.33A3 3 0 1 0 18 16Z'/%3E%3C/svg%3E"); }
.icon-settings { mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M12 15.5A3.5 3.5 0 0 1 8.5 12A3.5 3.5 0 0 1 12 8.5a3.5 3.5 0 0 1 3.5 3.5a3.5 3.5 0 0 1-3.5 3.5m7.43-2.53c.04-.32.07-.64.07-.97c0-.33-.03-.66-.07-1l2.11-1.63c.19-.15.24-.42.12-.64l-2-3.46c-.12-.22-.39-.31-.61-.22l-2.49 1c-.52-.4-1.06-.73-1.69-.98l-.37-2.65A.506.506 0 0 0 14 2h-4c-.25 0-.46.18-.5.42l-.37 2.65c-.63.25-1.17.59-1.69.98l-2.49-1c-.22-.09-.49 0-.61.22l-2 3.46c-.13.22-.07.49.12.64L4.57 11c-.04.34-.07.67-.07 1c0 .33.03.65.07.97l-2.11 1.66c-.19.15-.25.42-.12.64l2 3.46c.12.22.39.3.61.22l2.49-1.01c.52.4 1.06.74 1.69.99l.37 2.65c.04.24.25.42.5.42h4c.25 0 .46-.18.5-.42l.37-2.65c.63-.26 1.17-.59 1.69-.99l2.49 1.01c.22.08.49 0 .61-.22l2-3.46c.12-.22.07-.49-.12-.64l-2.11-1.66Z'/%3E%3C/svg%3E"); }

/* Header */
.app-header {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem clamp(16px, 2vw, 32px);
    background-color: var(--color-header-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    gap: 1rem;
}

.app-header__section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.app-header__section--left {
    flex: 1;
}

.app-header__section--right {
    justify-content: flex-end;
    flex: 1;
    gap: 1rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 0.02em;
}

.brand__logo {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, #ff1313, #d40000);
    display: grid;
    place-items: center;
    font-size: 1.1rem;
    font-weight: 800;
    color: #fff;
    box-shadow: 0 10px 20px rgba(255, 0, 0, 0.45);
}

.brand__text {
    font-size: 1.3rem;
}

.search-bar {
    display: flex;
    align-items: center;
    flex: 2;
    max-width: 600px;
    background: var(--color-input-bg);
    border-radius: 40px;
    border: 1px solid var(--color-input-border);
    padding: 0.35rem;
}

.search-bar input[type="search"] {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--color-text);
    font-size: 1rem;
    padding: 0.55rem 1rem;
    outline: none;
}

.search-bar input::placeholder {
    color: var(--color-text-subtle);
}

.search-bar .search-button {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-surface-soft);
    color: inherit;
}

.search-bar .search-button:hover {
    background: var(--color-card-hover);
}

.user-chip {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.4rem 0.75rem 0.4rem 0.4rem;
    border-radius: 999px;
    background: var(--color-surface-soft);
    border: 1px solid transparent;
    color: inherit;
    text-decoration: none;
}

body.theme-light .user-chip {
    border-color: var(--color-border);
}

.user-chip__avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.25), rgba(255, 255, 255, 0.05));
    display: grid;
    place-items: center;
    font-weight: 700;
    text-transform: uppercase;
    overflow: hidden;
}

.user-chip__avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.user-chip__meta {
    display: flex;
    flex-direction: column;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.user-chip__name {
    color: var(--color-text);
    font-weight: 600;
    font-size: 0.95rem;
}

.user-chip__status {
    font-size: 0.75rem;
}

/* Application Shell */
.app-shell {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 0;
    min-height: calc(100vh - 64px);
}

.side-nav {
    position: sticky;
    top: 64px;
    align-self: start;
    height: calc(100vh - 64px);
    background: var(--color-sidenav-bg);
    border-right: 1px solid var(--color-border);
    padding: clamp(16px, 2vw, 24px);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    backdrop-filter: blur(8px);
}

.side-nav nav {
    display: grid;
    gap: 0.5rem;
}

.side-nav__item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.85rem;
    border-radius: 12px;
    color: var(--color-text-muted);
    transition: 0.2s ease;
}

.side-nav__item:hover,
.side-nav__item:focus {
    background: var(--color-card-hover);
    color: var(--color-text);
}

.app-content {
    padding: clamp(16px, 2vw, 32px);
    background: linear-gradient(180deg, var(--color-surface-alt), var(--color-bg));
    min-height: calc(100vh - 64px);
}

.app-footer {
    margin-top: auto;
    border-top: 1px solid var(--color-border);
    background: var(--color-header-bg);
}

.app-footer__inner {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    padding: 1.5rem clamp(16px, 2vw, 32px);
}

.app-footer__tagline {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
}

/* Hero */
.hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: clamp(24px, 3vw, 40px);
    background: var(--color-card-bg);
    border-radius: var(--radius-lg);
    padding: clamp(24px, 3vw, 36px);
    box-shadow: var(--color-elevated-shadow);
    margin-bottom: clamp(32px, 4vw, 48px);
    overflow: hidden;
}

.hero__media {
    border-radius: calc(var(--radius-lg) - 6px);
    overflow: hidden;
    position: relative;
}

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

.hero__badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--color-accent);
    color: #fff;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero__body h1 {
    font-size: clamp(1.6rem, 2.4vw, 2.3rem);
    margin: 0 0 0.75rem;
    line-height: 1.25;
}

.hero__meta {
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

.hero__description {
    color: var(--color-text-subtle);
    margin-bottom: 1.5rem;
}

.hero__actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Shelf */
.shelf {
    margin-bottom: clamp(32px, 4vw, 48px);
}
.grid-section {
    display: grid;
    gap: 1.25rem;
    margin-bottom: clamp(32px, 4vw, 48px);
}
.grid-section__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.grid-section__header h2 {
    margin: 0;
    font-size: 1.4rem;
}
.grid-section__header a {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.shelf__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.2rem;
}

.shelf__header h2 {
    font-size: 1.3rem;
    margin: 0;
}

.shelf__scroller {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(260px, 1fr);
    gap: 1rem;
    overflow-x: auto;
    padding-bottom: 0.75rem;
    scrollbar-width: thin;
}

.shelf__scroller::-webkit-scrollbar {
    height: 8px;
}

.shelf__scroller::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.12);
    border-radius: 999px;
}

/* Video Cards */
.video-grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.video-grid--list {
    grid-template-columns: 1fr;
}

.video-card {
    background: var(--color-card-bg);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: grid;
    grid-template-rows: auto 1fr;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 1px solid var(--color-border);
}

.video-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--color-elevated-shadow);
}

.video-card__thumb {
    position: relative;
    padding-top: 56.25%;
    background: #000;
}

.video-card__thumb img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-card__duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.75);
    color: #fff;
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
    font-size: 0.75rem;
}

.video-card__body {
    padding: 1rem;
    display: grid;
    gap: 0.6rem;
}

.video-card__title {
    margin: 0;
    font-size: 1rem;
    line-height: 1.4;
}

.video-card__meta {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.video-card__description {
    font-size: 0.9rem;
    color: var(--color-text-subtle);
}

.video-card__tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.video-card--horizontal {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: center;
    padding: 0.5rem;
}

.video-card--horizontal .video-card__thumb {
    padding-top: 0;
    height: 150px;
}

.video-card--list {
    grid-template-columns: minmax(240px, 320px) minmax(0, 1fr);
    align-items: stretch;
    padding: 0;
}

.video-card--list .video-card__thumb {
    padding-top: 0;
    height: 100%;
}

.video-card--list .video-card__body {
    padding: 1.25rem;
}

/* Panels & Forms */
.panel {
    background: var(--color-card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    padding: clamp(24px, 3vw, 36px);
    box-shadow: var(--color-elevated-shadow);
    display: grid;
    gap: 1.5rem;
}

.panel--danger {
    border-color: rgba(239, 68, 68, 0.35);
    background: linear-gradient(145deg, rgba(239, 68, 68, 0.15), var(--color-card-bg));
}

.panel__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.panel__title {
    margin: 0;
    font-size: 1.5rem;
}

.panel__subtitle {
    margin: 0.25rem 0 0;
    color: var(--color-text-muted);
}

.form-grid {
    display: grid;
    gap: 1.2rem;
}

.form-field {
    display: grid;
    gap: 0.5rem;
}

.form-field--full {
    grid-column: 1 / -1;
}

.form-field label {
    font-weight: 600;
    font-size: 0.95rem;
}

.form-field input,
.form-field textarea {
    width: 100%;
    padding: 0.9rem 1rem;
    border-radius: 12px;
    border: 1px solid var(--color-input-border);
    background: var(--color-input-bg);
    color: var(--color-text);
    font: inherit;
}

.form-field textarea {
    min-height: 140px;
    resize: vertical;
}

.form-field input:focus,
.form-field textarea:focus {
    outline: 2px solid var(--color-border-strong);
}

.form-hint {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    flex-wrap: wrap;
}

.file-drop-zone {
    position: relative;
    border: 2px dashed var(--color-border);
    border-radius: 14px;
    padding: 2.5rem 1rem;
    text-align: center;
    color: var(--color-text-muted);
    transition: 0.25s ease;
    background: var(--color-surface-soft);
}

.file-drop-zone::before {
    content: attr(data-label);
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: var(--color-text);
}

.file-drop-zone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.file-drop-zone__cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.1rem;
    border-radius: 999px;
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid transparent;
    font-weight: 600;
}

.file-drop-zone.is-focused,
.file-drop-zone:hover {
    border-color: var(--color-border-strong);
    background: var(--color-card-hover);
}

.file-drop-zone.has-files::after {
    content: attr(data-files);
    display: block;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--color-text-subtle);
}

/* Alerts */
.alert {
    padding: 0.9rem 1rem;
    border-radius: 12px;
    font-size: 0.95rem;
    border: 1px solid transparent;
}

.alert--success {
    background: rgba(34, 197, 94, 0.15);
    border-color: rgba(34, 197, 94, 0.3);
    color: #0f9d58;
}

.alert--error {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.35);
    color: #b91c1c;
}

.alert--warning {
    background: rgba(250, 204, 21, 0.18);
    border-color: rgba(250, 204, 21, 0.35);
    color: #b45309;
}

/* Confirm card */
.confirm-card {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 1.5rem;
    align-items: center;
}

.confirm-card__preview {
    border-radius: var(--radius-md);
    overflow: hidden;
    background: rgba(0, 0, 0, 0.4);
    display: grid;
    place-items: center;
    min-height: 200px;
}

.confirm-card__placeholder {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.confirm-card__body h2 {
    margin-top: 0;
}

.form-field--compact input {
    max-width: 240px;
}

/* Watch page */
.watch-shell {
    display: grid;
    grid-template-columns: minmax(0, 2.2fr) minmax(240px, 1fr);
    gap: clamp(24px, 3vw, 36px);
}

.watch-primary {
    display: grid;
    gap: 1.5rem;
}

.player-card {
    background: #000;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
}

.watch-player {
    width: 100%;
    display: block;
    aspect-ratio: 16 / 9;
    background: #000;
}

.watch-meta {
    display: grid;
    gap: 0.75rem;
}

.watch-title {
    margin: 0;
    font-size: clamp(1.6rem, 2.1vw, 1.9rem);
}

.watch-stats {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-muted);
}

.watch-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.watch-manage {
    display: inline-flex;
    gap: 0.5rem;
}

.watch-description {
    background: var(--color-card-bg);
    border-radius: 14px;
    padding: 1.25rem;
    display: grid;
    gap: 1rem;
    border: 1px solid var(--color-border);
}

.watch-description__placeholder {
    color: var(--color-text-subtle);
}

.watch-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.watch-tag {
    background: var(--color-surface-soft);
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    font-size: 0.8rem;
    color: var(--color-text);
}

.watch-sidebar {
    display: grid;
    gap: 1rem;
}

.watch-sidebar__title {
    margin-top: 0;
    font-size: 1.1rem;
}

.mini-card {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 0.75rem;
    padding: 0.65rem;
    border-radius: 12px;
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    transition: 0.2s ease;
}

.mini-card:hover {
    border-color: var(--color-border-strong);
    box-shadow: var(--color-elevated-shadow);
}

.mini-card__body h3 {
    margin: 0;
    font-size: 0.95rem;
    color: var(--color-text);
}

.mini-card__body p {
    margin: 0.3rem 0 0;
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

/* Search */
.search-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.search-header h1 {
    margin: 0;
    font-size: 1.7rem;
}

.search-header__meta {
    color: var(--color-text-muted);
}

.search-header__form {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.search-header__form input[type="search"] {
    border-radius: 12px;
    padding: 0.8rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.35);
    color: #fff;
    min-width: 220px;
}

/* Empty states & system message */
.empty-state {
    background: var(--color-card-bg);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    border: 1px dashed var(--color-border);
    color: var(--color-text-muted);
    display: grid;
    gap: 0.75rem;
    justify-items: center;
}

body.theme-light .empty-state {
    border-style: solid;
}

.empty-state--compact {
    padding: 1.5rem;
    border-radius: 12px;
}

.empty-state__icon {
    font-size: 2rem;
}

.system-message {
    display: grid;
    place-items: center;
    min-height: 60vh;
    padding: 2rem;
    text-align: center;
}

.system-message__icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.system-message__body {
    background: var(--color-card-bg);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--color-border);
    max-width: 420px;
    color: var(--color-text);
}

.pagination {
    margin-top: 2.5rem;
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

.pagination__item {
    display: inline-flex;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    background: var(--color-card-bg);
}

.pagination__item.is-active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #fff;
}

.pagination__item:hover {
    border-color: var(--color-border-strong);
}

/* Responsive */
@media (max-width: 1100px) {
    .app-shell {
        grid-template-columns: 70px 1fr;
    }

    .side-nav {
        padding: 1rem 0.5rem;
        align-items: center;
    }

    .side-nav__item span:last-child {
        display: none;
    }

    .hero {
        grid-template-columns: 1fr;
    }

    .confirm-card {
        grid-template-columns: 1fr;
    }

    .confirm-card__preview {
        min-height: 160px;
    }

    .watch-shell {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    .app-header {
        flex-wrap: wrap;
        gap: 0.75rem;
    }

    .app-header__section--left,
    .app-header__section--right {
        flex: none;
        width: 100%;
        justify-content: space-between;
    }

    .search-bar {
        order: 3;
        width: 100%;
    }

    .user-chip {
        margin-left: auto;
    }

    .app-shell {
        grid-template-columns: 1fr;
    }

    .side-nav {
        position: fixed;
        inset: 64px 0 auto;
        height: auto;
        max-height: calc(100vh - 64px);
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 40;
    }

    .nav-open .side-nav {
        transform: translateX(0);
    }

    .app-content {
        padding-top: clamp(20px, 4vw, 32px);
    }

    .shelf__scroller {
        grid-auto-columns: 220px;
    }

    .video-card--horizontal {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 600px) {
    .hero {
        padding: 1.25rem;
    }

    .hero__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .watch-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .share-btn {
        margin-left: 0;
        justify-content: center;
        width: 100%;
    }

    .watch-manage {
        justify-content: center;
    }

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

    .mini-card__thumb img {
        width: 100%;
        height: 180px;
        object-fit: cover;
    }

    .search-header {
        flex-direction: column;
        align-items: stretch;
    }

    .search-header__form {
        justify-content: stretch;
    }

    .primary-btn,
    .ghost-btn {
        width: 100%;
        justify-content: center;
    }

    .comment {
        grid-template-columns: 1fr;
    }

    .comment__avatar {
        width: 36px;
        height: 36px;
    }

    .video-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 0.75rem;
    }

    .video-card__body {
        padding: 0.75rem;
    }

    .video-card__title {
        font-size: 0.875rem;
    }

    .video-card__meta {
        font-size: 0.75rem;
    }

    .panel__header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .form-grid {
        gap: 1rem;
    }

    .file-drop-zone {
        padding: 2rem 1rem;
    }

    .admin-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 400px) {
    .container {
        padding: 0 1rem;
    }

    .app-content {
        padding-top: 1rem;
    }

    .video-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }
}
}

.profile-panel {
    gap: 2rem;
}

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

.profile-avatar-picker {
    display: grid;
    gap: 0.75rem;
    justify-items: start;
}

.profile-avatar-picker__preview {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    background: var(--color-surface-soft);
    display: grid;
    place-items: center;
    overflow: hidden;
    border: 2px solid var(--color-border);
}

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

.profile-avatar-picker__initial {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
}

.profile-avatar-picker input[type="file"] {
    display: none;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
}

.share-btn.is-success {
    border-color: rgba(34, 197, 94, 0.4);
    color: #22c55e;
}

.comments {
    margin-top: clamp(32px, 4vw, 48px);
    display: grid;
    gap: 1.5rem;
    background: var(--color-card-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    padding: clamp(20px, 3vw, 32px);
}

.comments__header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.comments__header h2 {
    margin: 0;
    font-size: 1.3rem;
}

.comments__count {
    background: var(--color-surface-soft);
    border-radius: 999px;
    padding: 0.2rem 0.75rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.comment-form {
    display: grid;
    gap: 1rem;
}

.comment-list {
    display: grid;
    gap: 1.25rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.comment {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.75rem;
}

.comment__avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-surface-soft);
    display: grid;
    place-items: center;
    font-weight: 600;
    color: var(--color-text);
    overflow: hidden;
}

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

.comment__body {
    display: grid;
    gap: 0.5rem;
}

.comment__meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.comment__meta strong {
    color: var(--color-text);
}

.comment__bio {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.checkbox {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-weight: 500;
}

.checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
}

.new-video-alert {
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    background: var(--color-accent-soft);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    margin-bottom: 1.5rem;
    box-shadow: var(--color-elevated-shadow);
}

.new-video-alert.is-visible {
    display: flex;
}

.new-video-alert__actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.analytics-panel {
    gap: 2rem;
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.analytics-card {
    background: var(--color-card-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    padding: 1.25rem;
    display: grid;
    gap: 1rem;
    min-height: 320px;
}

.analytics-card h2 {
    margin: 0;
    font-size: 1.1rem;
}

.analytics-card canvas {
    width: 100%;
    height: 100%;
}