/* css/estilo.css */
:root {
    /* Cores Iconic */
    --azul-marinho: #001F3F;
    --laranja-primario: #FF6B00;
    --laranja-hover: #FF8C00;
    --laranja-gradiente: linear-gradient(135deg, #FF6B00, #FF8C00);
    --branco: #FFFFFF;
    --cinza-claro: #F8F9FA;
    --cinza-medio: #E2E8F0;
    --cinza-escuro: #6C757D;
    --preto: #333333;
    
    /* Tipografia */
    --fonte-primaria: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --peso-light: 300;
    --peso-regular: 400;
    --peso-medium: 500;
    --peso-semibold: 600;
    --peso-bold: 700;
    
    /* Espaçamentos */
    --espaco-xs: 8px;
    --espaco-sm: 16px;
    --espaco-md: 24px;
    --espaco-lg: 32px;
    --espaco-xl: 48px;
    --espaco-xxl: 64px;
    
    /* Bordas */
    --borda-radius-sm: 6px;
    --borda-radius-md: 8px;
    --borda-radius-lg: 12px;
    --borda-radius-xl: 16px;
    
    /* Sombras */
    --sombra-suave: 0 2px 8px rgba(0,0,0,0.1);
    --sombra-media: 0 4px 12px rgba(0,0,0,0.15);
    --sombra-destaque: 0 4px 12px rgba(255,107,0,0.3);
    --sombra-header: 0 2px 16px rgba(0,0,0,0.1);
}

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

body {
    font-family: var(--fonte-primaria);
    line-height: 1.6;
    color: var(--preto);
    background-color: var(--branco);
    font-weight: var(--peso-regular);
}

/* ===== TIPOGRAFIA ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--peso-semibold);
    color: var(--azul-marinho);
    line-height: 1.3;
    margin-bottom: var(--espaco-md);
}

h1 {
    font-size: 48px;
    font-weight: var(--peso-bold);
}

h2 {
    font-size: 36px;
}

h3 {
    font-size: 24px;
}

h4 {
    font-size: 20px;
    font-weight: var(--peso-medium);
}

p {
    margin-bottom: var(--espaco-md);
    color: var(--cinza-escuro);
}

/* ===== BOTÕES ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--espaco-xs);
    padding: 12px 32px;
    border: none;
    border-radius: var(--borda-radius-md);
    font-family: var(--fonte-primaria);
    font-size: 16px;
    font-weight: var(--peso-semibold);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--laranja-gradiente);
    color: var(--branco);
    box-shadow: var(--sombra-destaque);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255,107,0,0.4);
}

.btn-secondary {
    background: var(--branco);
    color: var(--azul-marinho);
    border: 2px solid var(--azul-marinho);
}

.btn-secondary:hover {
    background: var(--azul-marinho);
    color: var(--branco);
    transform: translateY(-2px);
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-small {
    padding: 8px 16px;
    font-size: 14px;
}

/* ===== LAYOUT PRINCIPAL ===== */
.container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== HEADER HERO ===== */
.hero-header {
    background: linear-gradient(135deg, var(--azul-marinho) 0%, #003366 100%);
    color: var(--branco);
    padding: var(--espaco-xxl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800" opacity="0.1"><polygon points="0,800 1200,400 1200,800" fill="white"/></svg>');
    background-size: cover;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--espaco-md);
}

.hero-header h1 {
    color: var(--branco);
    font-size: 48px;
    margin-bottom: var(--espaco-md);
    font-weight: var(--peso-bold);
}

.hero-header p {
    color: rgba(255,255,255,0.9);
    font-size: 20px;
    margin-bottom: var(--espaco-xl);
    font-weight: var(--peso-regular);
}

/* ===== FEATURES GRID ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--espaco-lg);
    margin: var(--espaco-xxl) 0;
}

.feature-card {
    background: var(--branco);
    padding: var(--espaco-xl);
    border-radius: var(--borda-radius-lg);
    box-shadow: var(--sombra-media);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--cinza-medio);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: var(--espaco-md);
    display: block;
}

.feature-card h3 {
    color: var(--azul-marinho);
    margin-bottom: var(--espaco-sm);
    font-weight: var(--peso-semibold);
}

.feature-card p {
    color: var(--cinza-escuro);
    margin-bottom: 0;
}

/* ===== ACTION BUTTONS ===== */
.action-buttons {
    display: flex;
    gap: var(--espaco-md);
    justify-content: center;
    margin: var(--espaco-xl) 0;
    flex-wrap: wrap;
}

/* ===== LOGIN/CADASTRO ===== */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--azul-marinho) 0%, #003366 100%);
    padding: var(--espaco-xl);
    position: relative;
}

.auth-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 1200" opacity="0.05"><circle cx="200" cy="200" r="100" fill="white"/><circle cx="1000" cy="300" r="150" fill="white"/><circle cx="800" cy="800" r="120" fill="white"/></svg>');
}

.auth-card {
    background: var(--branco);
    padding: var(--espaco-xl);
    border-radius: var(--borda-radius-xl);
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 440px;
    position: relative;
    z-index: 2;
}

.auth-header {
    text-align: center;
    margin-bottom: var(--espaco-xl);
}

.auth-header h2 {
    color: var(--azul-marinho);
    margin-bottom: var(--espaco-xs);
}

.auth-header p {
    color: var(--cinza-escuro);
    margin-bottom: 0;
}

/* ===== FORMULÁRIOS ===== */
.form-group {
    margin-bottom: var(--espaco-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--espaco-xs);
    font-weight: var(--peso-medium);
    color: var(--azul-marinho);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--cinza-medio);
    border-radius: var(--borda-radius-sm);
    font-family: var(--fonte-primaria);
    font-size: 16px;
    transition: all 0.3s ease;
    background: var(--branco);
}

.form-control:focus {
    outline: none;
    border-color: var(--laranja-primario);
    box-shadow: 0 0 0 3px rgba(255,107,0,0.1);
}

.form-text {
    display: block;
    margin-top: var(--espaco-xs);
    color: var(--cinza-escuro);
    font-size: 14px;
}

/* ===== CHECKBOX E RADIO ===== */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--espaco-xs);
    margin-bottom: var(--espaco-sm);
}

.form-check-input {
    width: 18px;
    height: 18px;
    border: 2px solid var(--cinza-medio);
    border-radius: 4px;
    cursor: pointer;
}

.form-check-input:checked {
    background-color: var(--laranja-primario);
    border-color: var(--laranja-primario);
}

.form-check-label {
    font-weight: var(--peso-regular);
    color: var(--preto);
    cursor: pointer;
}

/* ===== ALERTAS ===== */
.alert {
    padding: var(--espaco-md);
    border-radius: var(--borda-radius-md);
    margin-bottom: var(--espaco-lg);
    font-weight: var(--peso-medium);
    border-left: 4px solid transparent;
}

.alert-success {
    background: #D4EDDA;
    color: #155724;
    border-left-color: #28A745;
}

.alert-error {
    background: #F8D7DA;
    color: #721C24;
    border-left-color: #DC3545;
}

.alert-warning {
    background: #FFF3CD;
    color: #856404;
    border-left-color: #FFC107;
}

.alert-info {
    background: #D1ECF1;
    color: #0C5460;
    border-left-color: #17A2B8;
}

/* ===== LINKS ===== */
.auth-links {
    text-align: center;
    margin-top: var(--espaco-lg);
}

.auth-link {
    color: var(--laranja-primario);
    text-decoration: none;
    font-weight: var(--peso-medium);
    transition: color 0.3s ease;
}

.auth-link:hover {
    color: var(--laranja-hover);
    text-decoration: underline;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--azul-marinho);
    color: var(--branco);
    text-align: center;
    padding: var(--espaco-xl);
    margin-top: auto;
}

.footer p {
    color: rgba(255,255,255,0.8);
    margin-bottom: 0;
}

/* ===== NAVEGAÇÃO DO USUÁRIO ===== */
.user-header {
    background: var(--branco);
    box-shadow: var(--sombra-header);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--espaco-md) var(--espaco-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.user-nav {
    background: var(--azul-marinho);
    padding: 0 var(--espaco-xl);
}

.user-nav-links {
    display: flex;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-link {
    color: var(--branco);
    text-decoration: none;
    padding: var(--espaco-md) var(--espaco-lg);
    transition: background-color 0.3s ease;
    font-weight: var(--peso-medium);
}

.nav-link:hover,
.nav-link.active {
    background: rgba(255,255,255,0.1);
}

/* ===== DASHBOARD ===== */
.dashboard {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--espaco-xl);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--espaco-lg);
    margin-bottom: var(--espaco-xl);
}

.stat-card {
    background: var(--branco);
    padding: var(--espaco-lg);
    border-radius: var(--borda-radius-lg);
    box-shadow: var(--sombra-media);
    text-align: center;
    border: 1px solid var(--cinza-medio);
}

.stat-icon {
    font-size: 40px;
    margin-bottom: var(--espaco-md);
    display: block;
}

.stat-number {
    font-size: 32px;
    font-weight: var(--peso-bold);
    color: var(--laranja-primario);
    margin-bottom: var(--espaco-xs);
}

.stat-label {
    color: var(--cinza-escuro);
    font-size: 14px;
    font-weight: var(--peso-medium);
}

/* ===== TABELAS ===== */
.table-container {
    background: var(--branco);
    border-radius: var(--borda-radius-lg);
    box-shadow: var(--sombra-media);
    overflow: hidden;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th {
    background: var(--cinza-claro);
    padding: var(--espaco-md);
    text-align: left;
    font-weight: var(--peso-semibold);
    color: var(--azul-marinho);
    border-bottom: 2px solid var(--cinza-medio);
}

.table td {
    padding: var(--espaco-md);
    border-bottom: 1px solid var(--cinza-medio);
}

.table tr:hover {
    background: var(--cinza-claro);
}

/* ===== BADGES ===== */
.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: var(--peso-semibold);
    text-transform: uppercase;
}

.badge-success {
    background: #D4EDDA;
    color: #155724;
}

.badge-danger {
    background: #F8D7DA;
    color: #721C24;
}

.badge-warning {
    background: #FFF3CD;
    color: #856404;
}

/* ===== RESPONSIVIDADE ===== */
@media (max-width: 768px) {
    :root {
        --espaco-xl: 32px;
        --espaco-xxl: 48px;
    }
    
    h1 {
        font-size: 36px;
    }
    
    h2 {
        font-size: 28px;
    }
    
    .hero-header {
        padding: var(--espaco-xl) 0;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--espaco-md);
    }
    
    .action-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .header-content {
        flex-direction: column;
        gap: var(--espaco-md);
        text-align: center;
    }
    
    .user-nav-links {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .table-container {
        overflow-x: auto;
    }
}

/* ===== ANIMAÇÕES ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ===== ESTADOS VAZIOS ===== */
.empty-state {
    text-align: center;
    padding: var(--espaco-xxl);
    color: var(--cinza-escuro);
}

.empty-icon {
    font-size: 64px;
    margin-bottom: var(--espaco-lg);
    opacity: 0.5;
}

/* ===== CARREGAMENTO ===== */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: var(--branco);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}