/* ==========================================================================
   Estudo Bíblico Seguro - Design System & Estilos Principais
   ========================================================================== */

:root {
    --bg-primary: #0b0f19;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    --bg-card: rgba(17, 24, 39, 0.85);
    --bg-card-hover: rgba(31, 41, 55, 0.95);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-hover: rgba(217, 119, 6, 0.4);
    
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --accent-gold: #f59e0b;
    --accent-gold-hover: #d97706;
    --accent-gold-soft: rgba(245, 158, 11, 0.15);
    
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-warning: #f59e0b;
    --color-info: #3b82f6;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 20px rgba(245, 158, 11, 0.2);

    --font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset Básico */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-family);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Layout Geral */
.app-header {
    background: rgba(17, 24, 39, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 40;
    padding: 0.85rem 1.5rem;
}

.header-container {
    max-width: 1300px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: -0.02em;
}

.brand-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--accent-gold), #b45309);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #111827;
    font-size: 1.2rem;
    box-shadow: var(--shadow-glow);
}

.user-nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-badge {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: 0.4rem 0.85rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.user-badge .role-tag {
    background: var(--accent-gold-soft);
    color: var(--accent-gold);
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
}

/* Container Principal */
.main-container {
    max-width: 1300px;
    width: 100%;
    margin: 0 auto;
    padding: 1.5rem;
    flex: 1;
}

/* Barra de Pesquisa e Ferramentas */
.toolbar-section {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.search-box {
    position: relative;
    flex: 1;
    min-width: 260px;
    max-width: 480px;
}

.search-box input {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.65rem 1rem 0.65rem 2.5rem;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

.search-icon {
    position: absolute;
    left: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

/* Trilha de Navegação (Breadcrumbs) */
.breadcrumb-container {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.4rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 0.6rem 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.breadcrumb-item {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    background: transparent;
    font-size: inherit;
}

.breadcrumb-item:hover {
    color: var(--accent-gold);
}

.breadcrumb-separator {
    color: var(--text-muted);
    user-select: none;
}

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 600;
    cursor: default;
}

/* Seções de Itens */
.section-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.grid-folders {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.grid-materials {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
}

/* Card de Pasta */
.folder-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    width: 100%;
}

.folder-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.folder-icon {
    font-size: 2rem;
    color: var(--accent-gold);
}

.folder-details {
    flex: 1;
    overflow: hidden;
}

.folder-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.folder-count {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
}

/* Card de Material / Arquivo */
.material-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.material-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.material-header {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    margin-bottom: 0.85rem;
}

.material-type-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.type-pdf { background: rgba(239, 68, 68, 0.15); color: #f87171; }
.type-doc { background: rgba(59, 130, 246, 0.15); color: #60a5fa; }
.type-sheet { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.type-presentation { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.type-video { background: rgba(168, 85, 247, 0.15); color: #c084fc; }
.type-drive_folder { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.type-file { background: rgba(107, 114, 128, 0.15); color: #9ca3af; }

.material-meta {
    flex: 1;
    overflow: hidden;
}

.material-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.35;
    margin-bottom: 0.25rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.material-desc {
    font-size: 0.825rem;
    color: var(--text-secondary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 0.75rem;
}

.material-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--border-color);
    padding-top: 0.75rem;
    margin-top: 0.5rem;
}

.material-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Botões */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
    outline: none;
}

.btn-primary {
    background: var(--accent-gold);
    color: #111827;
}

.btn-primary:hover {
    background: var(--accent-gold-hover);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    background: var(--color-danger);
    color: white;
}

.btn-sm {
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
}

.btn-block {
    width: 100%;
}

/* Formulário de Login */
.auth-container {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.auth-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 420px;
    padding: 2.25rem;
    box-shadow: var(--shadow-lg);
}

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

.auth-card-header h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 0.75rem;
}

.auth-card-header p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.form-input {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.7rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

.auth-alert {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
    padding: 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    display: none;
}

/* Modal do Visualizador de Material Seguro */
.secure-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    z-index: 100;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.secure-modal-backdrop.active {
    display: flex;
}

.secure-modal-window {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 95vw;
    height: 92vh;
    max-width: 1400px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.secure-modal-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 0.85rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.secure-modal-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.secure-modal-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.secure-modal-body {
    flex: 1;
    position: relative;
    background: #000;
    overflow: hidden;
}

.secure-viewer-frame {
    width: 100%;
    height: 100%;
    border: none;
    background: #111827;
}

/* Toast de Segurança */
.security-toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: #1f2937;
    border: 1px solid var(--accent-gold);
    color: #fef3c7;
    padding: 0.85rem 1.25rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-size: 0.9rem;
    font-weight: 500;
    z-index: 99999;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.security-toast.show {
    opacity: 1;
    transform: translateY(0);
}

/* Estado Vazio */
.empty-state {
    text-align: center;
    padding: 4rem 1.5rem;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    opacity: 0.4;
}

.empty-state h3 {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

/* Responsividade */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        align-items: flex-start;
    }
    .user-nav-actions {
        width: 100%;
        justify-content: space-between;
    }
    .grid-folders {
        grid-template-columns: 1fr;
    }
    .grid-materials {
        grid-template-columns: 1fr;
    }
    .secure-modal-window {
        width: 100vw;
        height: 100vh;
        border-radius: 0;
    }
}