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

:root {
    --bg: #0e0b0b;
    --panel: #171212;
    --hover: #2a1f1f;
    --text: #f7f1ee;
    --muted: #b7aaa6;
    --border: #2e2423;
    --red: #ff3b30;
    --red-deep: #d91e18;
    --yellow: #ffc72c;
    --header-h: 64px;
    --sidebar-w: 240px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Outfit", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
}

button, input {
    font: inherit;
}

button {
    border: 0;
    cursor: pointer;
}

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

img {
    display: block;
}

:focus-visible {
    outline: 2px solid var(--yellow);
    outline-offset: 2px;
}

/* ================= HEADER ================= */

.header {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    width: 100%;
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    background: rgba(14, 11, 11, .94);
    backdrop-filter: blur(10px);
}

/* red to yellow line under the header */
.header::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--red), var(--yellow));
}

.header-left, .header-right, .search-area {
    display: flex;
    align-items: center;
}

.header-left {
    gap: 14px;
}

.header-right {
    gap: 10px;
}

/* LOGO */

.logo {
    display: flex;
    align-items: center;
    gap: 7px;
}

.logo-mark {
    width: 34px;
    height: 26px;
}

.logo span {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -.8px;
}

.menu-btn svg, .search-box button svg, .mic-btn svg, .create-btn svg, .notification-btn svg, .side-item svg {
    width: 22px;
    height: 22px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.menu-btn, .create-btn, .notification-btn, .mic-btn {
    display: flex;
    align-items: center;
    justify-content: center;
}

.menu-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: transparent;
    color: var(--text);
    transition: background .2s, color .2s;
}

.menu-btn:hover, .create-btn:hover, .notification-btn:hover {
    background: var(--hover);
    color: var(--yellow);
}

/* ================= SEARCH ================= */

.search-area {
    width: min(620px, 48vw);
    gap: 12px;
}

.search-box {
    height: 42px;
    flex: 1;
    display: flex;
    border: 1px solid var(--border);
    border-radius: 22px;
    overflow: hidden;
    background: var(--panel);
    transition: border-color .2s, box-shadow .2s;
}

.search-box:focus-within {
    border-color: var(--yellow);
    box-shadow: 0 0 0 3px rgba(255, 199, 44, .15);
}

.search-box input {
    width: 100%;
    padding: 0 18px;
    outline: none;
    border: 0;
    background: transparent;
    color: var(--text);
    font-size: 16px;
}

.search-box input::placeholder {
    color: #8a7b77;
}

.search-box button {
    width: 64px;
    background: var(--red);
    color: white;
    transition: background .2s;
}

.search-box button:hover {
    background: var(--red-deep);
}

.mic-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--panel);
    color: var(--text);
    transition: background .2s, color .2s;
}

.mic-btn:hover {
    background: var(--yellow);
    color: #1a1200;
}

/* ================= HEADER RIGHT ================= */

.create-btn, .notification-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: transparent;
    color: var(--text);
    transition: background .2s, color .2s;
}

.notification-btn {
    position: relative;
}

.notification-btn span {
    position: absolute;
    top: 1px;
    right: 0;
    min-width: 17px;
    height: 17px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--yellow);
    color: #1a1200;
    font-size: 10px;
    font-weight: 700;
}

.profile-btn {
    width: 38px;
    height: 38px;
    padding: 0;
    border-radius: 50%;
    overflow: hidden;
    background: transparent;
    border: 2px solid var(--red);
}

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

/* ================= CREATE DROPDOWN ================= */

.create-wrap {
    position: relative;
}

.create-btn[aria-expanded="true"] {
    background: var(--hover);
    color: var(--yellow);
}

.create-menu {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    z-index: 1100;
    width: 230px;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--panel);
    box-shadow: 0 16px 40px rgba(0, 0, 0, .55), 0 0 0 1px rgba(255, 59, 48, .08);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(.98);
    transform-origin: top right;
    transition: opacity .18s, transform .18s, visibility .18s;
}

.create-menu.open {
    opacity: 1;
    visibility: visible;
    transform: none;
}

.create-item {
    display: flex;
    align-items: center;
    gap: 14px;
    min-height: 44px;
    padding: 8px 12px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 500;
    transition: background .2s;
}

.create-item:hover,
.create-item:focus-visible {
    background: var(--hover);
}

.create-item svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    fill: none;
    stroke: var(--yellow);
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.create-item.studio svg:first-child {
    stroke: var(--red);
}

.create-item .ext {
    width: 16px;
    height: 16px;
    margin-left: auto;
    stroke: var(--muted);
}

.create-divider {
    height: 1px;
    margin: 6px 4px;
    background: var(--border);
}

/* ================= SIDEBAR ================= */

.sidebar {
    position: fixed;
    top: var(--header-h);
    left: 0;
    bottom: 0;
    width: var(--sidebar-w);
    padding: 12px;
    overflow-y: auto;
    background: var(--bg);
    z-index: 900;
    transition: transform .3s ease;
}

.sidebar::-webkit-scrollbar {
    width: 7px;
}

.sidebar::-webkit-scrollbar-thumb {
    background: #4a3535;
    border-radius: 10px;
}

.side-item, .channel {
    min-height: 44px;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 8px 14px;
    border-radius: 10px;
    font-size: 14px;
    transition: background .2s;
}

.side-item:hover, .channel:hover {
    background: var(--hover);
}

.side-item.active {
    background: rgba(255, 59, 48, .14);
    font-weight: 600;
    box-shadow: inset 3px 0 0 var(--red);
}

.side-item.active svg {
    color: var(--yellow);
}

.sidebar hr {
    border: 0;
    border-top: 1px solid var(--border);
    margin: 14px 0;
}

.sidebar h3 {
    padding: 8px 14px;
    font-size: 16px;
}

.channel {
    gap: 14px;
}

.channel img {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    object-fit: cover;
}

/* ===== SIDEBAR HIDDEN (toggled by the menu button) ===== */

body.sidebar-hidden .sidebar {
    transform: translateX(-100%);
}

/* ================= MAIN ================= */

.main {
    margin-left: var(--sidebar-w);
    padding: 80px 28px 60px;
    min-height: 100vh;
    transition: margin-left .3s ease;
}

body.sidebar-hidden .main {
    margin-left: 0;
}

/* ================= CATEGORIES ================= */

.categories {
    position: sticky;
    top: var(--header-h);
    z-index: 800;
    display: flex;
    gap: 12px;
    padding: 10px 0 18px;
    overflow-x: auto;
    background: var(--bg);
}

.categories::-webkit-scrollbar {
    display: none;
}

.categories button {
    flex-shrink: 0;
    padding: 9px 16px;
    border-radius: 8px;
    background: var(--hover);
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    transition: background .2s, color .2s;
}

.categories button:hover {
    background: var(--red-deep);
}

.categories button.active {
    background: var(--yellow);
    color: #1a1200;
    font-weight: 700;
}

/* ================= VIDEO GRID ================= */

.video-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 38px 18px;
}

.video-card {
    min-width: 0;
}

.thumbnail {
    position: relative;
    display: block;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: 12px;
    background: #221a1a;
    transition: box-shadow .2s;
}

.video-card:hover .thumbnail {
    box-shadow: 0 0 0 2px var(--red), 0 8px 24px rgba(255, 59, 48, .25);
}

.thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .25s;
}

.video-card:hover .thumbnail img {
    transform: scale(1.04);
}

.thumbnail span {
    position: absolute;
    right: 8px;
    bottom: 8px;
    padding: 3px 7px;
    border-radius: 4px;
    background: var(--yellow);
    color: #1a1200;
    font-size: 12px;
    font-weight: 700;
}

.video-info {
    display: flex;
    gap: 12px;
    padding-top: 12px;
}

.avatar {
    width: 38px;
    height: 38px;
    flex-shrink: 0;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--red);
    background: var(--hover);
}

.video-info div {
    min-width: 0;
}

.video-info h3 {
    display: -webkit-box;
    overflow: hidden;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.4;
}

.video-info h3 a:hover {
    color: var(--yellow);
}

.video-info p {
    margin-top: 5px;
    color: var(--muted);
    font-size: 13px;
}

.empty {
    padding: 60px 0;
    text-align: center;
    color: var(--muted);
    font-size: 16px;
}

.empty[hidden] {
    display: none;
}

/* ================= SHORTS ================= */

.shorts {
    margin-top: 55px;
    padding-top: 28px;
    border-top: 1px solid var(--border);
    width: 100%;
}

.shorts h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 22px;
    font-size: 26px;
    font-weight: 800;
}

.shorts h2 svg {
    width: 28px;
    height: 28px;
    fill: var(--red);
    stroke: var(--yellow);
    stroke-width: 1.5;
    stroke-linejoin: round;
}

.shorts-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}

.short-card {
    min-width: 0;
}

.short-thumb {
    position: relative;
    display: block;
    aspect-ratio: 9 / 16;
    overflow: hidden;
    border-radius: 16px;
    background: #221a1a;
    transition: transform .2s, box-shadow .2s;
}

.short-card:hover .short-thumb {
    transform: translateY(-4px);
    box-shadow: 0 0 0 2px var(--yellow), 0 12px 28px rgba(255, 59, 48, .3);
}

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

.short-menu {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(0, 0, 0, .55);
    color: white;
    font-size: 20px;
    line-height: 1;
}

.short-menu:hover {
    background: var(--red);
}

.short-card h3 {
    display: -webkit-box;
    overflow: hidden;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    margin-top: 12px;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.4;
}

.short-card p {
    margin-top: 4px;
    color: var(--muted);
    font-size: 13px;
}

/* ================= RESPONSIVE ================= */

@media (max-width: 1200px) {
    .video-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 900px) {
    :root {
        --sidebar-w: 80px;
    }

    .side-item {
        flex-direction: column;
        gap: 5px;
        padding: 10px 4px;
        font-size: 11px;
        text-align: center;
    }

    .side-item.active {
        box-shadow: none;
    }

    .sidebar h3, .sidebar hr, .channel {
        display: none;
    }

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

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

    .search-area {
        width: 45vw;
    }
}

@media (max-width: 650px) {

    :root {
        --header-h: 58px;
    }

    .header {
        padding: 0 10px;
    }

    .header-left {
        gap: 5px;
    }

    .logo span {
        font-size: 18px;
    }

    .logo-mark {
        width: 30px;
        height: 22px;
    }

    .search-area {
        flex: 1;
        width: auto;
        margin: 0 5px;
    }

    .mic-btn {
        display: none;
    }

    .search-box input {
        font-size: 14px;
    }

    .create-btn, .notification-btn {
        display: none;
    }

    .sidebar {
        top: auto;
        bottom: 0;
        width: 100%;
        height: 62px;
        padding: 4px;
        border-top: 1px solid var(--border);
        overflow: hidden;
    }

    .sidebar nav {
        height: 100%;
        display: flex;
        justify-content: space-around;
    }

    .side-item {
        min-width: 65px;
        min-height: 54px;
        justify-content: center;
    }

    .side-item:nth-of-type(n + 4) {
        display: none;
    }

    /* on phones the sidebar is a bottom bar, so it slides down when hidden */
    body.sidebar-hidden .sidebar {
        transform: translateY(100%);
        width: 1;
    }

    .main {
        margin-left: 0;
        padding: 70px 12px 85px;
    }

    body.sidebar-hidden .main {
        padding-bottom: 30px;
    }

    .video-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .shorts-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .short-card h3 {
        font-size: 14px;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        scroll-behavior: auto !important;
    }
}