@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-main: #090d16;
    --bg-secondary: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.65);
    --card-border: rgba(255, 255, 255, 0.08);
    
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --accent: #06b6d4;
    --accent-gradient: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dark: #0f172a;
    
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    --success-bg: rgba(16, 185, 129, 0.15);
    --warning-bg: rgba(245, 158, 11, 0.15);
    --danger-bg: rgba(239, 68, 68, 0.15);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --font: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
    background-color: var(--bg-main);
    background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(168, 85, 247, 0.12) 0px, transparent 50%),
        radial-gradient(at 50% 100%, rgba(6, 182, 212, 0.1) 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-main);
    font-family: var(--font);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Scrollbar Customizada */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
    background: #1e293b;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #334155;
}

/* Header & Navbar */
header {
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 800;
    font-size: 1.5rem;
    background: linear-gradient(to right, #818cf8, #c084fc, #22d3ee);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    font-weight: 400;
    font-size: 0.9rem;
    color: var(--text-muted);
    border-left: 1px solid var(--text-muted);
    padding-left: 0.5rem;
    margin-left: 0.2rem;
    -webkit-text-fill-color: initial;
}

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

.btn-logout {
    background: rgba(239, 68, 68, 0.1);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.2);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.btn-logout:hover {
    background: var(--danger);
    color: var(--text-main);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

/* Layout Principal */
main {
    flex: 1;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Cards com Glassmorphism */
.card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.4);
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-gradient);
    opacity: 0.8;
}

.card.accent::before {
    background: var(--accent-gradient);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.card-subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: -1rem;
    margin-bottom: 1.5rem;
}

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

label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

input[type="text"],
input[type="number"],
input[type="password"],
input[type="date"],
select,
textarea {
    width: 100%;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 1rem;
    transition: var(--transition);
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
    background: rgba(15, 23, 42, 0.95);
}

/* Botões */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-family: var(--font);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--text-main);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-main);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.btn-accent {
    background: var(--accent-gradient);
    color: var(--text-main);
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(6, 182, 212, 0.45);
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    border-radius: 6px;
}

/* Badges e Tags */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-presente {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

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

.badge-justificado {
    background: var(--warning-bg);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-pendente {
    background: rgba(148, 163, 184, 0.15);
    color: var(--text-muted);
    border: 1px solid rgba(148, 163, 184, 0.3);
}

/* Estatísticas Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: rgba(15, 23, 42, 0.45);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.15);
    background: rgba(15, 23, 42, 0.6);
}

.stat-title {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-main);
    line-height: 1.2;
}

.stat-desc {
    font-size: 0.8rem;
    color: var(--accent);
    margin-top: 0.5rem;
}

/* Gráficos e Seções Específicas */
.chart-container {
    height: 300px;
    width: 100%;
    margin-top: 1rem;
}

/* Tabelas e Filtros */
.filters-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
    background: rgba(15, 23, 42, 0.3);
    padding: 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--card-border);
}

.filter-item {
    flex: 1;
    min-width: 200px;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--card-border);
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.95rem;
}

th {
    background: rgba(15, 23, 42, 0.8);
    color: var(--text-muted);
    padding: 1rem;
    font-weight: 600;
    border-bottom: 2px solid var(--card-border);
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--card-border);
    color: var(--text-main);
    background: rgba(30, 41, 59, 0.2);
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* Modal Estilizado */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(9, 13, 22, 0.85);
    backdrop-filter: blur(8px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.modal.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    background: #1e293b;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 500px;
    padding: 2rem;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transform: scale(0.9);
    transition: var(--transition);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-title {
    font-size: 1.3rem;
    font-weight: 700;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--text-main);
}

/* Área do Código de 6 Dígitos (Destaque) */
.presence-code-box {
    background: rgba(99, 102, 241, 0.1);
    border: 2px dashed var(--primary);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    text-align: center;
    margin: 1.5rem 0;
}

.presence-code-number {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    color: #a855f7;
    margin: 0.5rem 0;
    font-family: monospace;
}

/* Grid de Seleção de Matéria (Aluno) */
.subject-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.subject-card {
    background: rgba(30, 41, 59, 0.4);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.subject-card:hover {
    background: rgba(99, 102, 241, 0.15);
    border-color: var(--primary);
    transform: translateY(-3px);
}

.subject-card-info h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.subject-card-info span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Timer progressivo da aula */
.timer-badge {
    background: rgba(6, 182, 212, 0.15);
    color: var(--accent);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    font-family: monospace;
    font-size: 0.95rem;
    border: 1px solid rgba(6, 182, 212, 0.3);
}

/* Notificação popup */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #1e293b;
    border-left: 4px solid var(--primary);
    padding: 1rem 1.5rem;
    border-radius: 4px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    z-index: 300;
    transform: translateY(150%);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    max-width: 350px;
}

.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }
.toast.show { transform: translateY(0); }

/* Animações utilitárias */
@keyframes spin {
    to { transform: rotate(360deg); }
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--text-main);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

/* Responsividade Geral */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .filters-wrapper {
        flex-direction: column;
    }
    
    .card {
        padding: 1.25rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    table {
        font-size: 0.85rem;
    }
}