:root {
    --bg-dark: #0f172a;
    --bg-darker: #0b0f19;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --success: #22c55e;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --danger: #ef4444;
    --card-bg: var(--glass-bg);
}

[data-theme="light"] {
    --bg-dark: #f0f7ff;
    --bg-darker: #e6f0ff;
    --text-main: #1e3a8a;
    --text-muted: #60a5fa;
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(37, 99, 235, 0.1);
    --card-bg: #ffffff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.app-container {
    display: flex;
    height: 100vh;
}

/* Sidebar (Common to all pages) */
.sidebar {
    width: 260px;
    background-color: var(--bg-darker);
    border-right: 1px solid var(--glass-border);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 3.5rem;
    letter-spacing: -0.02em;
}

.brand-icon {
    width: 28px;
    height: 28px;
    object-fit: contain;
}

.nav-links {
    list-style: none;
    flex: 1;
}

.nav-links li {
    margin-bottom: 0.5rem;
}

.nav-links a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.nav-links a:hover,
.nav-links li.active a {
    background-color: var(--primary);
    color: white;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 1rem;
    border-top: 1px solid var(--glass-border);
}

.user-profile img {
    border-radius: 50%;
    width: 40px;
    height: 40px;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-info .name {
    font-weight: 600;
    font-size: 0.95rem;
}

.user-info .plan {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Main Content */
.main-content {
    flex: 1;
    overflow-y: auto;
    padding: 2rem 3rem;
    background: radial-gradient(circle at top right, rgba(99, 102, 241, 0.1), transparent 40%), var(--bg-dark);
}

.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
}

.search-bar {
    display: flex;
    align-items: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 10px 20px;
    border-radius: 20px;
    width: 400px;
}

.search-bar input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-main);
    margin-left: 10px;
    width: 100%;
}

.header-actions {
    display: flex;
    gap: 1rem;
}

.btn-icon {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    transition: 0.3s;
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
    padding: 10px 24px;
    border-radius: 20px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

/* Videos Grid */
.section-title {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    font-weight: 600;
}

/* Front Search Bar for Index/Channels */
.front-search-input {
    width: 100%;
    padding: 15px 20px;
    border-radius: 14px;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-main);
    font-size: 1.05rem;
    font-family: inherit;
    outline: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.front-search-input::placeholder {
    color: var(--text-muted);
}

.front-search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

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

.video-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    transition: 0.3s;
}

.video-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.2);
}

.thumbnail-container {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
}

.thumbnail-container img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-info {
    padding: 1rem;
}

/* Auth Pages Styles */
.auth-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: radial-gradient(circle at top right, rgba(37, 99, 235, 0.1), transparent 40%),
        radial-gradient(circle at bottom left, rgba(37, 99, 235, 0.05), transparent 40%),
        var(--bg-dark);
    padding: 20px;
}

.auth-theme-toggle {
    position: fixed;
    top: 2rem;
    right: 2rem;
}

.auth-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(20px);
    width: 100%;
    max-width: 440px;
    padding: 2.5rem;
    border-radius: 24px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-main);
}

.auth-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.auth-header p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.input-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-container label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-left: 4px;
}

.input-container input {
    background: var(--bg-darker);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    padding: 14px 16px;
    border-radius: 12px;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
}

.input-container input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.auth-footer {
    margin-top: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.auth-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    margin-left: 4px;
}

.auth-footer a:hover {
    text-decoration: underline;
}

@media (max-width: 480px) {
    .auth-card {
        padding: 2rem 1.5rem;
    }
}

.video-title {
    font-size: 1.05rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

/* PWA Additions */
.whatsapp-btn {
    position: fixed;
    bottom: 2.5rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background: #25d366;
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.8rem;
    box-shadow: 0 10px 20px -5px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.whatsapp-btn:hover {
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .sidebar {
        display: none;
    }

    .main-content {
        padding: 60px 1.2rem 120px 1.2rem;
        width: 100%;
        max-width: 100vw;
    }

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

    .search-bar {
        width: 100%;
    }

    .header-actions {
        width: 100%;
        justify-content: flex-end;
    }

    .mobile-bottom-nav {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: var(--bg-darker);
        border-top: 1px solid var(--glass-border);
        display: flex;
        justify-content: flex-start;
        padding: 0.8rem 1rem;
        z-index: 1000;
        backdrop-filter: blur(10px);
        overflow-x: auto;
        white-space: nowrap;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior-x: contain;
        gap: 0.5rem;
    }

    .mobile-bottom-nav::-webkit-scrollbar {
        display: none;
    }
    
    .nav-item-fixed {
        display: flex;
        align-items: center;
        position: sticky;
        right: -1rem; /* Offset padding */
        top: 0;
        bottom: 0;
        background: var(--bg-darker);
        z-index: 100;
        padding-left: 8px;
        padding-right: 1rem;
        margin-right: -1rem;
        box-shadow: -15px 0 15px -10px var(--bg-darker);
    }
    
    .whatsapp-btn {
        display: none !important;
    }

    .mobile-bottom-nav .nav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 4px;
        color: var(--text-muted);
        text-decoration: none;
        font-size: 0.75rem;
        flex: 0 0 auto;
        min-width: 60px;
    }
    
    .nav-divider {
        width: 1px;
        height: 35px;
        background: var(--glass-border);
        margin: auto 8px;
        flex: 0 0 auto;
    }

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

    .section-title {
        font-size: 1.25rem;
        margin-bottom: 1.2rem;
    }

    .channel-card,
    .video-card {
        padding: 1rem;
        border-radius: 12px;
    }
}

@media (min-width: 769px) {
    .mobile-bottom-nav {
        display: none;
    }
}

/* ============================================================
   User Navigation — Sidebar (desktop) + Bottom Nav (mobile)
   ============================================================ */

/* ---- Sidebar — visível apenas no desktop ---- */
.user-sidebar {
    display: none;
}

@media (min-width: 900px) {
    .user-sidebar {
        display: flex;
        flex-direction: column;
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        width: 220px;
        background: var(--bg-darker);
        border-right: 1px solid var(--glass-border);
        padding: 1.5rem 1.25rem;
        z-index: 20;
    }

    .user-sidebar__logo {
        display: flex;
        align-items: center;
        gap: 0.6rem;
        font-size: 1.15rem;
        font-weight: 700;
        color: var(--text-main);
        text-decoration: none;
        margin-bottom: 2rem;
    }

    .user-sidebar__nav {
        display: flex;
        flex-direction: column;
        gap: 0.25rem;
        flex: 1;
    }

    .user-sidebar__item {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        padding: 0.85rem 1rem;
        border-radius: 12px;
        color: var(--text-muted);
        text-decoration: none;
        font-size: 0.95rem;
        font-weight: 500;
        transition: background 0.15s ease, color 0.15s ease;
    }

    .user-sidebar__item:hover {
        background: var(--glass-bg);
        color: var(--text-main);
    }

    .user-sidebar__item.active {
        background: rgba(37, 99, 235, 0.15);
        color: var(--primary);
    }

    .user-sidebar__footer {
        padding-top: 1rem;
        border-top: 1px solid var(--glass-border);
    }

    .user-sidebar__install {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        padding: 0.85rem 1rem;
        border-radius: 12px;
        color: var(--text-muted);
        background: transparent;
        border: none;
        cursor: pointer;
        font-size: 0.95rem;
        font-weight: 500;
        font-family: inherit;
        width: 100%;
        transition: background 0.15s ease, color 0.15s ease;
    }

    .user-sidebar__install:hover {
        background: var(--glass-bg);
        color: var(--text-main);
    }

    /* Empurra o conteúdo para a direita */
    .home-header,
    .home-main {
        margin-left: 220px;
    }

    /* Oculta bottom nav no desktop */
    .bottom-nav {
        display: none !important;
    }
    
    .user-sidebar__user {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 0.85rem 0.5rem;
    }
    
    .user-sidebar__avatar {
        width: 38px;
        height: 38px;
        border-radius: 50%;
        background: var(--primary);
        color: white;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 700;
        font-size: 1.1rem;
        flex: 0 0 auto;
    }
    
    .user-sidebar__user-info {
        display: flex;
        flex-direction: column;
        gap: 3px;
        overflow: hidden;
    }
    
    .user-sidebar__username {
        font-size: 0.95rem;
        font-weight: 600;
        color: var(--text-main);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .user-sidebar__logout {
        background: none;
        border: none;
        color: var(--text-muted);
        font-size: 0.85rem;
        cursor: pointer;
        text-align: left;
        display: flex;
        align-items: center;
        gap: 6px;
        font-family: inherit;
        transition: color 0.2s;
        padding: 0;
    }
    
    .user-sidebar__logout:hover {
        color: var(--danger);
    }
}

/* ---- Bottom Nav — visível apenas no mobile/PWA ---- */
.bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-darker);
    border-top: 1px solid var(--glass-border);
    z-index: 50;
    padding: 0.5rem 1rem;
    padding-bottom: calc(0.5rem + env(safe-area-inset-bottom, 0));
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
    justify-content: flex-start;
    gap: 0.5rem;
}

.bottom-nav::-webkit-scrollbar {
    display: none;
}

.nav-item-fixed {
    display: flex;
    align-items: center;
    position: sticky;
    right: -1rem;
    top: 0;
    bottom: 0;
    background: var(--bg-darker);
    z-index: 100;
    padding-left: 8px;
    padding-right: 1rem;
    margin-right: -1rem;
    box-shadow: -15px 0 15px -10px var(--bg-darker);
}

.bottom-nav__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    flex: 0 0 auto;
    padding: 0.5rem 0.25rem;
    min-width: 65px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: inherit;
    background: transparent;
    border: none;
    cursor: pointer;
    transition: color 0.15s ease;
    min-height: 56px;
}

.bottom-nav__item i {
    font-size: 1.2rem;
}

.bottom-nav__item.active {
    color: var(--primary);
}

.bottom-nav__item:hover {
    color: var(--text-main);
}

/* Espaço no conteúdo para não ficar atrás do menu inferior */
@media (max-width: 899px) {
    .home-main {
        padding-bottom: 5rem;
    }
}