/* ============================================
   DESIGN SYSTEM - Catálogo de Modelos
   ============================================ */
:root {
    /* Colors */
    --color-primary: #0A2540;
    --color-primary-light: #1A3B5D;
    --color-accent: #635BFF;
    --color-accent-hover: #4F46E5;
    --color-success: #00D4AA;
    --color-white: #FFFFFF;
    --color-gray-50: #F6F9FC;
    --color-gray-100: #F1F5F9;
    --color-gray-200: #E2E8F0;
    --color-gray-300: #CBD5E1;
    --color-gray-400: #94A3B8;
    --color-gray-500: #64748B;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1E293B;
    --color-gray-900: #0F172A;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-gray-700);
    background: linear-gradient(180deg, var(--color-gray-50) 0%, var(--color-white) 100%);
    min-height: 100vh;
}

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

/* ============================================
   LAYOUT
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo img {
    height: 35px;
    width: auto;
    display: block;
}

.header-nav a {
    color: var(--color-gray-600);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
    margin-left: 2rem;
    transition: color var(--transition-fast);
}

.header-nav a:hover {
    color: var(--color-accent);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-primary);
    cursor: pointer;
    padding: var(--space-2);
}

.mobile-nav {
    display: none;
    flex-direction: column;
    padding: var(--space-2) var(--space-6) var(--space-6);
    background: var(--color-white);
    position: absolute;
    top: 80px;
    /* Altura desktop */
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 15px 30px -5px rgba(0, 0, 0, 0.1);
    border-top: 1px solid var(--color-gray-100);
}

@media (max-width: 768px) {
    .mobile-nav {
        top: 70px;
        /* Altura mobile */
    }
}

.mobile-nav.open {
    display: flex;
    animation: fadeInDown var(--transition-fast) forwards;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-nav a {
    padding: var(--space-4) 0;
    color: var(--color-gray-700);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px solid var(--color-gray-50);
    font-size: 1.1rem;
    transition: color 0.2s;
}

.mobile-nav a:hover {
    color: var(--color-accent);
}

.mobile-nav a:last-child {
    border-bottom: none;
}

/* ============================================
   PAGE HEADER
   ============================================ */
.page-header {
    padding: var(--space-6) 0 var(--space-10);
    text-align: center;
}

.page-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.page-title {
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1.1;
    margin-bottom: var(--space-4);
    letter-spacing: -0.03em;
}

.page-subtitle {
    font-size: 1.25rem;
    color: var(--color-gray-500);
    max-width: 600px;
    margin: 0 auto;
}

.model-count {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(99, 91, 255, 0.1);
    color: var(--color-accent);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-top: var(--space-6);
}

/* ============================================
   CATEGORIAS - ACCORDION
   ============================================ */
.categorias-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-24);
}

.categoria-item {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-200);
    overflow: hidden;
    transition: all var(--transition-base);
}

.categoria-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-gray-300);
}

.categoria-item.active {
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.categoria-header {
    padding: var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    background: var(--color-white);
    transition: background var(--transition-fast);
    border: none;
    width: 100%;
    text-align: left;
    font-family: inherit;
}

.categoria-header:hover {
    background: var(--color-gray-50);
}

.categoria-info {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.categoria-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-hover));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.categoria-title-wrap h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-1);
}

.categoria-desc {
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

.categoria-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.categoria-count {
    background: var(--color-gray-100);
    color: var(--color-gray-600);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
}

.categoria-arrow {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-400);
    transition: transform var(--transition-base);
}

.categoria-item.active .categoria-arrow {
    transform: rotate(180deg);
    color: var(--color-accent);
}

/* ============================================
   CONTEÚDO DOS MODELOS
   ============================================ */
.categoria-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base), padding var(--transition-base);
    background: var(--color-gray-50);
}

.categoria-item.active .categoria-content {
    max-height: 5000px;
    padding: var(--space-6);
    border-top: 1px solid var(--color-gray-200);
}

.modelos-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-6);
}

/* ============================================
   CARDS DE MODELOS
   ============================================ */
.modelo-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.modelo-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.modelo-thumb {
    aspect-ratio: 16/10;
    background: linear-gradient(135deg, var(--color-gray-200), var(--color-gray-300));
    overflow: hidden;
    position: relative;
}

.modelo-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.modelo-card:hover .modelo-thumb img {
    transform: scale(1.05);
}

.modelo-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.modelo-card:hover .modelo-overlay {
    opacity: 1;
}

.modelo-preview-btn {
    background: white;
    color: var(--color-primary);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.875rem;
    text-decoration: none;
    transform: translateY(10px);
    transition: transform var(--transition-base);
}

.modelo-card:hover .modelo-preview-btn {
    transform: translateY(0);
}

.modelo-info {
    padding: var(--space-6);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.modelo-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.modelo-nome {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.3;
}

.modelo-tag {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-hover));
    color: white;
    font-size: 0.625rem;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.modelo-desc {
    font-size: 0.9375rem;
    color: var(--color-gray-600);
    line-height: 1.6;
    margin-bottom: var(--space-6);
    flex: 1;
}

.modelo-actions {
    display: flex;
    gap: var(--space-3);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.9375rem;
    text-decoration: none;
    transition: all var(--transition-base);
    border: none;
    cursor: pointer;
    flex: 1;
}

.btn-outline {
    background: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-gray-200);
}

.btn-outline:hover {
    border-color: var(--color-accent);
    background: rgba(99, 91, 255, 0.05);
}

.btn-primary {
    background: var(--color-accent);
    color: white;
    box-shadow: 0 4px 6px -1px rgba(99, 91, 255, 0.2);
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 10px 15px -3px rgba(99, 91, 255, 0.3);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    background: var(--color-primary);
    color: white;
    padding: 80px 0 40px;
    margin-top: var(--space-24);
    position: relative;
    overflow: hidden;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 36px;
    margin-bottom: 60px;
}

@media (min-width: 640px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 40px;
    }
}

.footer-title {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-white);
    opacity: 0.9;
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: center;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

/* ============================================
   MODAIS
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--color-white);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--space-8);
    position: relative;
    transform: translateY(20px);
    transition: transform var(--transition-base);
    overflow-y: auto;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: var(--color-gray-100);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-600);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-gray-200);
    color: var(--color-gray-900);
}

.modal-header {
    margin-bottom: var(--space-6);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: var(--space-2);
}

.modal-body {
    color: var(--color-gray-700);
    font-size: 1rem;
    line-height: 1.6;
}

.modal-body ul {
    list-style: none;
    margin: var(--space-4) 0;
}

.modal-body li {
    padding-left: var(--space-6);
    position: relative;
    margin-bottom: var(--space-3);
}

.modal-body li::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--color-success);
}

/* ============================================
   RESPONSIVIDADE
   ============================================ */
@media (min-width: 640px) {
    .modelos-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .page-title {
        font-size: 3.5rem;
    }
}

@media (min-width: 1024px) {
    .modelos-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .header-nav {
        display: block;
    }
}

@media (max-width: 768px) {
    .page-title {
        font-size: 2rem;
    }

    .page-subtitle {
        font-size: 1rem;
    }

    .categoria-header {
        padding: var(--space-4);
    }

    .categoria-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .categoria-title-wrap h2 {
        font-size: 1.125rem;
    }

    .categoria-desc {
        display: none;
    }

    .modelo-actions {
        flex-direction: column;
    }

    .header-nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .header-inner {
        height: 70px;
    }
}

/* Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.categoria-item {
    animation: fadeIn 0.5s ease-out backwards;
}

.categoria-item:nth-child(1) {
    animation-delay: 0.1s;
}

.categoria-item:nth-child(2) {
    animation-delay: 0.2s;
}

.categoria-item:nth-child(3) {
    animation-delay: 0.3s;
}

.categoria-item:nth-child(4) {
    animation-delay: 0.4s;
}

/* CSS para centralizar o menu */
.site-header .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.logo {
    flex: 0 0 auto;
    width: 180px;
    /* Ajuste conforme o tamanho real da sua logo */
}

.header-nav {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 2rem;
    white-space: nowrap;
}

.header-spacer {
    flex: 0 0 auto;
    width: 180px;
    /* Mesma largura da logo para balancear */
    visibility: hidden;
}

.mobile-menu-toggle {
    display: none;
    flex: 0 0 auto;
}

/* Media query para mobile */
@media (max-width: 768px) {

    .header-nav,
    .header-spacer {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .logo {
        width: 140px;
        /* Logo menor no mobile */
    }
}