/* assets/estilo.css */
:root {
    --azul-escuro: #1a365d;
    --azul-medio: #2c5282;
    --branco: #ffffff;
    --cinza-claro: #f7fafc;
    --cinza: #e2e8f0;
    --cinza-escuro: #4a5568;
}

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

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--cinza-claro);
    color: var(--cinza-escuro);
    line-height: 1.5;
}

.bg-gray { background: #edf2f7; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 1rem; }

/* Header público */
.site-header {
    background: var(--azul-escuro);
    color: var(--branco);
    padding: 2.5rem 1rem;
    text-align: center;
    margin-bottom: 2rem;
}

.site-header h1 { font-size: 1.75rem; margin-bottom: 0.4rem; font-weight: 600; }
.site-header p { font-size: 1rem; opacity: 0.85; }

/* Busca */
.search-section { margin-bottom: 1.5rem; display: flex; justify-content: center; }

.search-form {
    display: flex;
    gap: 0.5rem;
    width: 100%;
    max-width: 600px;
}

.search-form input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid var(--cinza);
    border-radius: 0.5rem;
    font-size: 1rem;
}

.search-form button {
    background: var(--azul-medio);
    color: white;
    border: none;
    padding: 0 1.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.2s;
}

.search-form button:hover { background: var(--azul-escuro); }

/* Filtro */
.filter-section { text-align: center; margin-bottom: 2rem; }

.filter-buttons {
    display: inline-flex;
    gap: 0.5rem;
    background: var(--branco);
    padding: 0.25rem;
    border-radius: 0.5rem;
    border: 1px solid var(--cinza);
}

.btn-filtro {
    padding: 0.5rem 1.25rem;
    border-radius: 0.375rem;
    text-decoration: none;
    color: var(--cinza-escuro);
    font-size: 0.9rem;
    transition: all 0.2s;
    font-weight: 500;
}

.btn-filtro:hover { background: var(--cinza-claro); }
.btn-filtro.ativo {
    background: var(--azul-escuro);
    color: var(--branco);
}

/* Grid de vídeos */
.video-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.video-card {
    background: var(--branco);
    border: 1px solid var(--cinza);
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    transition: transform 0.2s, box-shadow 0.2s;
}

.video-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.video-card img {
    width: 100%;
    display: block;
    aspect-ratio: 16/9;
    object-fit: cover;
}

.card-body { padding: 1rem; }

.card-body h2 {
    font-size: 0.95rem;
    color: var(--azul-escuro);
    margin-bottom: 0.5rem;
    min-height: 2.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.badge-container { margin-bottom: 0.5rem; }

.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-admin { background: #c53030; color: white; }
.badge-public { background: #2f855a; color: white; }

.btn-assistir {
    background: var(--azul-escuro);
    color: var(--branco);
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 0.375rem;
    cursor: pointer;
    width: 100%;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background 0.2s;
}

.btn-assistir:hover { background: var(--azul-medio); }

/* Modal do vídeo */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.9);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal.active { display: flex; }

.modal-content {
    background: #000;
    max-width: 960px;
    width: 100%;
    border-radius: 0.5rem;
    overflow: hidden;
    position: relative;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--azul-escuro);
    color: var(--branco);
}

.modal-header span { flex: 1; font-weight: 500; }

.modal-close {
    background: transparent;
    border: none;
    color: var(--branco);
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    margin-left: 0.5rem;
}

.btn-fullscreen {
    background: transparent;
    border: 1px solid var(--branco);
    color: var(--branco);
    padding: 0.4rem 0.75rem;
    border-radius: 0.375rem;
    cursor: pointer;
    font-size: 0.8rem;
    transition: background 0.2s;
}

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

.modal-body {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
}

.iframe-wrapper {
    position: absolute;
    inset: 0;
}

.iframe-wrapper iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

/* Admin */
.login-container {
    max-width: 420px;
    margin: 5rem auto;
    padding: 2.5rem 2rem;
    background: var(--branco);
    border-radius: 0.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.login-container h2 {
    text-align: center;
    color: var(--azul-escuro);
    margin-bottom: 1.5rem;
    font-size: 1.4rem;
}

.login-container label {
    display: block;
    margin-bottom: 0.3rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--azul-escuro);
}

.login-container input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--cinza);
    border-radius: 0.375rem;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.login-container button {
    width: 100%;
    background: var(--azul-escuro);
    color: var(--branco);
    border: none;
    padding: 0.75rem;
    border-radius: 0.375rem;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s;
}

.login-container button:hover { background: var(--azul-medio); }

.link-voltar {
    color: var(--azul-medio);
    text-decoration: none;
    font-size: 0.85rem;
}

/* Admin header */
.admin-header {
    background: var(--azul-escuro);
    color: var(--branco);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.admin-header h2 { font-size: 1.25rem; }

.admin-header a { color: var(--branco); text-decoration: none; }

.btn-sair {
    margin-left: 1rem;
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--branco);
    border-radius: 0.25rem;
    font-size: 0.85rem;
    transition: background 0.2s;
}

.btn-sair:hover { background: rgba(255,255,255,0.15); }

/* Alertas */
.alert {
    padding: 1rem;
    border-radius: 0.375rem;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.alert-success { background: #c6f6d5; color: #22543d; border: 1px solid #9ae6b4; }
.alert-error { background: #fed7d7; color: #742a2a; border: 1px solid #feb2b2; }

/* Formulário admin */
.form-section {
    background: var(--branco);
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 2rem;
    border: 1px solid var(--cinza);
}

.form-section h3 { margin-bottom: 1rem; color: var(--azul-escuro); }

.admin-form .form-row {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.form-group { flex: 1; min-width: 200px; }
.form-group label { display: block; font-size: 0.85rem; margin-bottom: 0.25rem; color: var(--cinza-escuro); }
.form-group input { width: 100%; padding: 0.6rem; border: 1px solid var(--cinza); border-radius: 0.375rem; font-size: 0.95rem; }

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding-bottom: 0.2rem;
    min-width: auto;
}

.form-checkbox input { width: auto; margin: 0; }
.form-checkbox label { margin: 0; font-size: 0.9rem; cursor: pointer; }

.btn-primary {
    margin-top: 0.75rem;
    background: var(--azul-escuro);
    color: var(--branco);
    border: none;
    padding: 0.6rem 1.5rem;
    border-radius: 0.375rem;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-primary:hover { background: var(--azul-medio); }

/* Tabela admin */
.table-wrapper { overflow-x: auto; }

.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--branco);
    border: 1px solid var(--cinza);
    border-radius: 0.5rem;
    overflow: hidden;
}

.admin-table th {
    background: var(--azul-escuro);
    color: var(--branco);
    text-align: left;
    padding: 0.75rem;
    font-weight: 500;
    font-size: 0.9rem;
}

.admin-table td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--cinza);
    font-size: 0.9rem;
}

.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:nth-child(even) { background: var(--cinza-claro); }

.btn-excluir {
    background: #c53030;
    color: var(--branco);
    border: none;
    padding: 0.4rem 0.75rem;
    border-radius: 0.25rem;
    cursor: pointer;
    font-size: 0.85rem;
    transition: background 0.2s;
}

.btn-excluir:hover { background: #9b2c2c; }

.empty-msg {
    text-align: center;
    color: var(--cinza-escuro);
    padding: 3rem 1rem;
    font-size: 1.1rem;
}

/* Responsivo */
@media (max-width: 1024px) {
    .video-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .video-grid { grid-template-columns: 1fr; }
    .site-header { padding: 1.5rem 1rem; }
    .site-header h1 { font-size: 1.3rem; }
    .admin-form .form-row { flex-direction: column; }
    .form-group { min-width: 100%; }
    .admin-header { flex-direction: column; gap: 0.5rem; text-align: center; }
}