/*
========================================
 WACADEMI - FOLHA DE ESTILOS PRINCIPAL
========================================
SUMÁRIO:
1. SETTINGS: Variáveis globais (cores, fontes)
2. GENERIC: Resets e estilos base (body)
3. LAYOUTS: Estrutura das páginas principais
4. COMPONENTS: Estilos de elementos reutilizáveis
5. UTILITIES: Classes auxiliares
6. RESPONSIVE: Media queries
========================================
*/

/* --- 1. SETTINGS: Variáveis Globais --- */
:root {
    --cor-fundo: #121212;
    --cor-sidebar: #181818;
    --cor-card: #212121;
    --cor-borda: #2d2d2d;
    --cor-texto-principal: #e0e0e0;
    --cor-texto-secundario: #a0a0a0;
    --cor-destaque: #ffffff;
    --cor-verde-status: #2ecc71;
    --cor-azul-link: #3498db;
    --font-principal: 'Inter', sans-serif;
    --transition-speed: 0.3s;
    --border-radius: 12px;
}

/* --- 2. GENERIC: Resets e Estilos Base --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700&display=swap');

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

body {
    font-family: var(--font-principal);
    background-color: var(--cor-fundo);
    color: var(--cor-texto-principal);
    line-height: 1.6;
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* --- 5. UTILITIES: Classes Auxiliares --- */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* --- 3. LAYOUTS: Estrutura das Páginas --- */
/* Layout do Dashboard (index.html, curso.html) */
.l-dashboard {
    display: flex;
}
.l-dashboard__content {
    flex-grow: 1;
    padding: 40px;
    margin-left: 260px;
    min-height: 100vh;
}

/* Layout da Página de Vídeo (modulo.html) */
.l-video {
    display: flex;
    min-height: 100vh;
}
.l-video__container {
    margin-left: 80px;
    width: calc(100% - 80px);
    display: flex;
    flex-grow: 1;
}
.l-video__main {
    flex-grow: 1;
    padding: 30px 40px;
    display: flex;
    flex-direction: column;
}
.l-video__playlist {
    width: 380px;
    min-width: 380px;
    height: 100vh;
    background-color: var(--cor-sidebar);
    border-left: 1px solid var(--cor-borda);
    padding: 30px;
    overflow-y: auto;
}

/* --- 4. COMPONENTS: Estilos de Elementos Reutilizáveis --- */

/* --- Componente: Botão Menu Mobile --- */
.c-mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1001;
    width: 50px;
    height: 50px;
    background-color: var(--cor-card);
    border: 1px solid var(--cor-borda);
    border-radius: 8px;
    align-items: center;
    justify-content: center;
    color: var(--cor-destaque);
    transition: background-color var(--transition-speed);
}

.c-mobile-menu-toggle:hover {
    background-color: var(--cor-sidebar);
}

/* --- Componente: Sidebar Principal --- */
.c-sidebar {
    width: 260px;
    background-color: var(--cor-sidebar);
    padding: 25px;
    height: 100vh;
    position: fixed;
    border-right: 1px solid var(--cor-borda);
    overflow-y: auto;
    z-index: 1000;
    transition: transform var(--transition-speed) ease;
}

.c-sidebar__logo {
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.c-sidebar__profile {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 30px;
}

.c-avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background-color: var(--cor-borda);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.c-sidebar__profile-info span {
    font-size: 0.9rem;
    color: var(--cor-texto-secundario);
}

.c-sidebar__profile-info strong {
    display: block;
    color: var(--cor-destaque);
}

.c-sidebar__nav-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 10px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color var(--transition-speed), color var(--transition-speed);
    color: var(--cor-texto-secundario);
    width: 100%;
}

.c-sidebar__nav-item:hover, 
.c-sidebar__nav-item.is-active {
    background-color: var(--cor-card);
    color: var(--cor-destaque);
}

.c-sidebar__submenu-toggle {
    cursor: pointer;
}

.c-sidebar__submenu-toggle .c-sidebar__nav-item:hover {
    background-color: var(--cor-card);
}

.c-sidebar__expand-icon {
    margin-left: auto;
    transition: transform var(--transition-speed) ease;
}

.c-sidebar__submenu-toggle.is-open .c-sidebar__expand-icon {
    transform: rotate(180deg);
}

.c-sidebar__submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-in-out;
    padding-left: 40px;
}

.c-sidebar__submenu.is-open {
    max-height: 500px;
    margin-top: 10px;
    padding-bottom: 10px;
}

.c-sidebar__submenu a {
    color: var(--cor-texto-secundario);
    display: block;
    padding: 8px 10px;
    border-radius: 6px;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

.c-sidebar__submenu a:hover {
    background-color: var(--cor-card);
    color: var(--cor-destaque);
}

/* --- Componente: Card de Curso --- */
.c-course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 25px;
}

.c-card {
    background-color: var(--cor-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    position: relative;
    border: 1px solid var(--cor-borda);
    aspect-ratio: 9 / 16;
    display: block;
    transition: transform var(--transition-speed) ease-in-out, 
                box-shadow var(--transition-speed) ease-in-out;
}

.c-card:hover {
    transform: scale(1.03);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

.c-card a {
    display: block;
    width: 100%;
    height: 100%;
    position: relative;
}

.c-card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.c-card__title {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    font-weight: 700;
    font-size: 1.1rem;
    background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
    color: var(--cor-destaque);
}

.c-card.is-locked .c-card__image {
    filter: grayscale(80%) blur(2px);
}

.c-card.is-loading {
    position: relative;
    overflow: hidden;
}

.c-card.is-loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
    );
    animation: loading 1.5s infinite;
}

@keyframes loading {
    to {
        left: 100%;
    }
}

.c-card__overlay-icon {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: rgba(0, 0, 0, 0.7);
    color: var(--cor-destaque);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    border: 1px solid var(--cor-borda);
}

.c-card__ribbon {
    position: absolute;
    top: -10px;
    left: -42px;
    transform: rotate(-45deg);
    width: 150px;
    padding: 8px 0;
    text-align: center;
    background-color: var(--cor-destaque);
    color: #000;
    font-weight: 700;
    font-size: 0.9rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    z-index: 3;
}

/* --- Componente: Seção de Conteúdo --- */
.c-content-section {
    margin-bottom: 40px;
}

.c-content-section__title {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--cor-destaque);
}

.c-content-section__subtitle {
    color: var(--cor-texto-secundario);
    margin-bottom: 25px;
}

.c-divider {
    border: none;
    border-top: 2px dashed var(--cor-borda);
    margin: 60px 0;
}

.c-footer {
    margin-top: 80px;
    padding-top: 30px;
    border-top: 1px solid var(--cor-borda);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--cor-texto-secundario);
    font-size: 0.9rem;
    flex-wrap: wrap;
    gap: 20px;
}

.c-footer__links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.c-footer__links a {
    color: var(--cor-texto-secundario);
    transition: color var(--transition-speed);
}

.c-footer__links a:hover {
    color: var(--cor-destaque);
}

/* --- Componente: Sidebar Fina (Vídeo) --- */
.c-sidebar-thin {
    width: 80px;
    height: 100vh;
    background-color: var(--cor-sidebar);
    border-right: 1px solid var(--cor-borda);
    position: fixed;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 0;
    z-index: 10;
}

.c-sidebar-thin__logo {
    font-size: 2rem;
    margin-bottom: 25px;
    color: var(--cor-destaque);
}

.c-sidebar-thin__avatar {
    margin-bottom: 25px;
}

.c-sidebar-thin__nav-item {
    padding: 15px 0;
    display: flex;
    justify-content: center;
    color: var(--cor-texto-secundario);
    cursor: pointer;
    position: relative;
    transition: color var(--transition-speed);
    width: 100%;
}

.c-sidebar-thin__nav-item:hover, 
.c-sidebar-thin__nav-item.is-active {
    color: var(--cor-destaque);
}

.c-sidebar-thin__nav-item.is-active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 60%;
    background-color: var(--cor-verde-status);
    border-radius: 0 4px 4px 0;
}

/* --- Componentes da Página de Vídeo --- */
.c-video-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.c-video-header__title {
    color: var(--cor-destaque);
    font-size: 1.5rem;
}

.c-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--cor-card);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-top: 10px;
}

.c-close-btn {
    background: none;
    border: none;
    color: var(--cor-texto-secundario);
    cursor: pointer;
    font-size: 2rem;
    transition: color var(--transition-speed);
}

.c-close-btn:hover {
    color: var(--cor-destaque);
}

.c-video-player {
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: #000;
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
}

.c-video-player__placeholder {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.c-video-player__play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 5rem;
    color: rgba(255,255,255,0.8);
    cursor: pointer;
    transition: color var(--transition-speed), transform var(--transition-speed);
    background: none;
    border: none;
}

.c-video-player__play-btn:hover {
    color: rgba(255,255,255,1);
    transform: translate(-50%, -50%) scale(1.1);
}

.c-resources {
    background-color: var(--cor-card);
    border: 1px solid var(--cor-borda);
    border-radius: var(--border-radius);
    padding: 30px;
    margin-top: 30px;
}

.c-resources__item {
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.c-resources__item:last-child {
    margin-bottom: 0;
}

.c-resources__item a {
    color: var(--cor-azul-link);
    font-weight: 700;
    margin-left: 10px;
    transition: opacity var(--transition-speed);
}

.c-resources__item a:hover {
    opacity: 0.8;
}

.c-playlist__module-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.c-playlist__module-title {
    font-size: 1.2rem;
    color: var(--cor-destaque);
    display: block;
}

.c-playlist__module-count {
    color: var(--cor-texto-secundario);
}

.c-playlist__toggle {
    background: none;
    border: none;
    color: var(--cor-texto-secundario);
    cursor: pointer;
    padding: 5px;
    transition: color var(--transition-speed);
}

.c-playlist__toggle:hover {
    color: var(--cor-destaque);
}

.c-playlist__lesson {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color var(--transition-speed);
    border: 1px solid transparent;
}

.c-playlist__lesson:hover {
    background-color: var(--cor-card);
}

.c-playlist__lesson.is-active {
    background-color: var(--cor-card);
    border-color: var(--cor-borda);
}

.c-playlist__lesson-meta {
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--cor-texto-secundario);
}

.c-playlist__lesson-check {
    color: var(--cor-verde-status);
}

/* --- 6. RESPONSIVE: Media Queries --- */
@media (max-width: 1024px) {
    .l-video__playlist {
        width: 320px;
        min-width: 320px;
    }
}

@media (max-width: 768px) {
    /* Mostrar botão de menu mobile */
    .c-mobile-menu-toggle {
        display: flex;
    }

    /* Sidebar principal (dashboard) */
    .c-sidebar {
        transform: translateX(-100%);
        z-index: 1000;
    }
    
    .c-sidebar.is-open {
        transform: translateX(0);
    }
    
    .l-dashboard__content {
        margin-left: 0;
        padding: 80px 20px 20px 20px;
    }
    
    .c-course-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 15px;
    }

    /* Layout de vídeo mobile */
    .c-sidebar-thin {
        width: 60px;
    }

    .l-video__container {
        flex-direction: column;
        margin-left: 60px;
        width: calc(100% - 60px);
    }

    .l-video__main {
        padding: 80px 20px 20px 20px;
    }
    
    .l-video__playlist {
        width: 100%;
        height: auto;
        max-height: 400px;
        overflow-y: auto;
        border-left: none;
        border-top: 1px solid var(--cor-borda);
    }

    .c-video-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .c-close-btn {
        position: absolute;
        top: 20px;
        right: 20px;
    }

    .c-video-player__play-btn {
        font-size: 3rem;
    }

    .c-footer {
        flex-direction: column;
        text-align: center;
    }

    .c-footer__links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .c-course-grid {
        grid-template-columns: 1fr;
    }

    .c-card {
        max-width: 300px;
        margin: 0 auto;
    }

    .c-video-header__title {
        font-size: 1.2rem;
    }

    .c-resources {
        padding: 20px;
    }

    .c-resources__item {
        font-size: 0.95rem;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .c-resources__item a {
        margin-left: 0;
    }
}