/* ===================================
   RESET E CONFIGURAÇÕES GERAIS
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Paleta de Cores */
    --azul-escuro: #1a2332;
    --azul-medio: #2c3e50;
    --azul-claro: #3498db;
    --cinza-claro: #ecf0f1;
    --cinza-medio: #bdc3c7;
    --branco: #ffffff;
    --preto: #2c3e50;
    --verde-sucesso: #27ae60;
    --vermelho-erro: #e74c3c;
    --amarelo-alerta: #f39c12;
    
    /* Tipografia */
    --font-principal: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-tamanho-base: 16px;
    
    /* Sombras */
    --sombra-leve: 0 2px 4px rgba(0,0,0,0.1);
    --sombra-media: 0 4px 8px rgba(0,0,0,0.15);
    --sombra-forte: 0 8px 16px rgba(0,0,0,0.2);
    
    /* Transições */
    --transicao-rapida: all 0.3s ease;
}

body {
    font-family: var(--font-principal);
    font-size: var(--font-tamanho-base);
    line-height: 1.6;
    color: var(--preto);
    background-color: var(--cinza-claro);
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transicao-rapida);
}

ul {
    list-style: none;
}

/* ===================================
   HEADER E NAVEGAÇÃO
   =================================== */
.header {
    background-color: var(--branco);
    box-shadow: var(--sombra-media);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 3px solid var(--azul-claro);
}

.navbar {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--azul-escuro);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo img {
    height: 70px;
    width: auto;
    background: var(--branco);
    padding: 5px;
    border-radius: 10px;
}

.logo span {
    font-size: 1.3rem;
    line-height: 1.2;
    color: var(--azul-escuro);
    font-weight: 700;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--azul-escuro);
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: var(--transicao-rapida);
}

.nav-link:hover {
    background-color: var(--cinza-claro);
    color: var(--azul-claro);
}

.nav-link.active {
    background-color: var(--azul-claro);
    color: var(--branco);
}

.btn-login {
    background-color: var(--azul-claro);
    color: var(--branco);
    padding: 0.6rem 1.5rem;
    border-radius: 5px;
    font-weight: 600;
    border: 2px solid var(--azul-claro);
}

.btn-login:hover {
    background-color: transparent;
    border-color: var(--branco);
}

/* Menu Mobile */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--branco);
    transition: var(--transicao-rapida);
    border-radius: 3px;
}

/* ===================================
   BANNER PRINCIPAL
   =================================== */
.banner {
    background: linear-gradient(135deg, var(--azul-escuro) 0%, var(--azul-medio) 100%);
    color: var(--branco);
    padding: 5rem 2rem;
    text-align: center;
}

.banner-content {
    max-width: 800px;
    margin: 0 auto;
}

.banner h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.banner p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.banner-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transicao-rapida);
    display: inline-block;
}

.btn-primary {
    background-color: var(--azul-claro);
    color: var(--branco);
    border-color: var(--azul-claro);
}

.btn-primary:hover {
    background-color: #2980b9;
    border-color: #2980b9;
    color: var(--branco);
}

.btn-secondary {
    background-color: transparent;
    color: var(--branco);
    border-color: var(--branco);
}

.btn-secondary:hover {
    background-color: var(--branco);
    color: var(--azul-escuro);
}

/* ===================================
   SEÇÕES GERAIS
   =================================== */
.section {
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: 2.5rem;
    color: var(--azul-escuro);
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--cinza-medio);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

/* ===================================
   CARDS
   =================================== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background-color: var(--branco);
    border-radius: 10px;
    box-shadow: var(--sombra-leve);
    overflow: hidden;
    transition: var(--transicao-rapida);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--sombra-forte);
}

.card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-body {
    padding: 1.5rem;
}

.card-title {
    font-size: 1.5rem;
    color: var(--azul-escuro);
    margin-bottom: 0.5rem;
}

.card-text {
    color: var(--cinza-medio);
    margin-bottom: 1rem;
}

.card-meta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.9rem;
    color: var(--cinza-medio);
    margin-top: 1rem;
}

.card-meta-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* ===================================
   BADGES E TAGS
   =================================== */
.badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.badge-success {
    background-color: var(--verde-sucesso);
    color: var(--branco);
}

.badge-danger {
    background-color: var(--vermelho-erro);
    color: var(--branco);
}

.badge-warning {
    background-color: var(--amarelo-alerta);
    color: var(--branco);
}

.badge-info {
    background-color: var(--azul-claro);
    color: var(--branco);
}

/* ===================================
   FORMULÁRIOS
   =================================== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--azul-escuro);
    font-weight: 600;
}

.form-control {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid var(--cinza-medio);
    border-radius: 5px;
    font-size: 1rem;
    transition: var(--transicao-rapida);
}

.form-control:focus {
    outline: none;
    border-color: var(--azul-claro);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

/* ===================================
   TABELAS
   =================================== */
.table-container {
    overflow-x: auto;
    background-color: var(--branco);
    border-radius: 10px;
    box-shadow: var(--sombra-leve);
}

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

.table thead {
    background-color: var(--azul-escuro);
    color: var(--branco);
}

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--cinza-claro);
}

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

.table-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    border-radius: 4px;
}

.btn-edit {
    background-color: var(--azul-claro);
    color: var(--branco);
    border: none;
}

.btn-delete {
    background-color: var(--vermelho-erro);
    color: var(--branco);
    border: none;
}

.btn-view {
    background-color: var(--cinza-medio);
    color: var(--branco);
    border: none;
}

/* ===================================
   ALERTAS E MENSAGENS
   =================================== */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 5px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border-left: 4px solid var(--verde-sucesso);
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border-left: 4px solid var(--vermelho-erro);
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
    border-left: 4px solid var(--amarelo-alerta);
}

/* ===================================
   MODAL
   =================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--branco);
    border-radius: 10px;
    padding: 2rem;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

.modal-title {
    font-size: 1.8rem;
    color: var(--azul-escuro);
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--cinza-medio);
    transition: var(--transicao-rapida);
}

.modal-close:hover {
    color: var(--vermelho-erro);
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background-color: var(--azul-escuro);
    color: var(--branco);
    padding: 3rem 2rem 1rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

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

.footer-section p,
.footer-section a {
    color: var(--cinza-claro);
    margin-bottom: 0.5rem;
    display: block;
}

.footer-section a:hover {
    color: var(--branco);
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--azul-medio);
    color: var(--cinza-medio);
}

/* ===================================
   ÁREA ADMINISTRATIVA
   =================================== */
.admin-container {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 250px;
    background-color: var(--azul-escuro);
    color: var(--branco);
    padding: 2rem 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.admin-sidebar-header {
    padding: 0 1.5rem 1.5rem;
    border-bottom: 1px solid var(--azul-medio);
    margin-bottom: 1.5rem;
}

.admin-menu {
    list-style: none;
}

.admin-menu-item {
    margin-bottom: 0.5rem;
}

.admin-menu-link {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--branco);
    transition: var(--transicao-rapida);
}

.admin-menu-link:hover,
.admin-menu-link.active {
    background-color: var(--azul-medio);
    border-left: 4px solid var(--azul-claro);
}

.admin-content {
    margin-left: 250px;
    flex: 1;
    padding: 2rem;
    background-color: var(--cinza-claro);
}

.admin-header {
    background-color: var(--branco);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--sombra-leve);
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-title {
    font-size: 2rem;
    color: var(--azul-escuro);
}

.btn-logout {
    background-color: var(--vermelho-erro);
    color: var(--branco);
    padding: 0.6rem 1.2rem;
    border-radius: 5px;
    border: none;
    cursor: pointer;
}

/* ===================================
   RESPONSIVIDADE
   =================================== */

/* Tablets */
@media (max-width: 768px) {
    .navbar {
        padding: 1rem;
    }
    
    .logo img {
        height: 55px;
    }
    
    .logo span {
        font-size: 1rem;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .menu-toggle span {
        background-color: var(--azul-escuro);
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--branco);
        flex-direction: column;
        padding: 1rem;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        box-shadow: var(--sombra-media);
    }
    
    .nav-menu.active {
        max-height: 500px;
    }
    
    .nav-link {
        padding: 1rem;
        border-bottom: 1px solid var(--cinza-claro);
    }
    
    .banner h1 {
        font-size: 2rem;
    }
    
    .banner p {
        font-size: 1.1rem;
    }
    
    .section {
        padding: 3rem 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .admin-container {
        flex-direction: column;
    }
    
    .admin-sidebar {
        width: 100%;
        height: auto;
        position: static;
    }
    
    .admin-content {
        margin-left: 0;
    }
    
    .admin-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* Smartphones */
@media (max-width: 480px) {
    .banner {
        padding: 3rem 1rem;
    }
    
    .banner h1 {
        font-size: 1.5rem;
    }
    
    .banner-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .modal-content {
        width: 95%;
        padding: 1rem;
    }
    
    .table {
        font-size: 0.85rem;
    }
    
    .table th,
    .table td {
        padding: 0.5rem;
    }
}

/* ===================================
   ANIMAÇÕES E UTILITÁRIOS
   =================================== */
.fade-in {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.text-center {
    text-align: center;
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.p-1 { padding: 1rem; }
.p-2 { padding: 2rem; }

.hidden {
    display: none;
}

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--cinza-medio);
    border-top-color: var(--azul-claro);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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