/**
 * Diário Oficial Eletrônico - Câmara Municipal de Xambioá
 * Estilos Principais
 */

/* ========================================
   CSS Variables - Design System
   ======================================== */
:root {
    /* Cores baseadas no brasão de Xambioá */
    --color-primary: #1a3a5c;
    --color-primary-dark: #0d1f32;
    --color-primary-light: #2c5a8f;
    --color-secondary: #c9a227;
    --color-secondary-dark: #a08320;
    --color-secondary-light: #e6c84a;
    --color-accent: #2d7a4a;
    --color-accent-light: #3d9960;
    
    /* Cores Neutras */
    --color-white: #ffffff;
    --color-gray-50: #f8fafc;
    --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;
    
    /* Status Colors */
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-info: #3b82f6;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    
    /* Borders */
    --border-radius-sm: 0.25rem;
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Container */
    --container-max: 1200px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-gray-50);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-light);
}

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ========================================
   Container
   ======================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

/* ========================================
   Header
   ======================================== */
.main-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top {
    padding: var(--spacing-4) 0;
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-6);
}

.brand-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    color: var(--color-white);
    text-decoration: none;
}

.brand-link:hover {
    color: var(--color-white);
}

.brand-logo {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius);
    border: 2px solid rgba(255, 255, 255, 0.2);
    object-fit: contain;
    background: var(--color-white);
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.brand-subtitle {
    font-size: var(--font-size-sm);
    opacity: 0.9;
    font-weight: 400;
}

.header-nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    gap: var(--spacing-1);
}

.nav-link {
    padding: var(--spacing-2) var(--spacing-4);
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    font-size: var(--font-size-sm);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
}

.nav-link-external::after {
    content: ' ↗';
    font-size: 0.7em;
    opacity: 0.7;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--spacing-2);
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-white);
    border-radius: 1px;
    transition: all var(--transition-fast);
}

/* ========================================
   Main Content
   ======================================== */
.main-content {
    flex: 1;
    padding: var(--spacing-8) 0;
}

/* ========================================
   Page Title
   ======================================== */
.page-header {
    margin-bottom: var(--spacing-8);
}

.page-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-2);
}

.page-subtitle {
    color: var(--color-gray-600);
    font-size: var(--font-size-lg);
}

/* ========================================
   Cards - Edições
   ======================================== */
.editions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-6);
}

.edition-card {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: all var(--transition-base);
    border: 1px solid var(--color-gray-200);
}

.edition-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.edition-card-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
    padding: var(--spacing-4);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.edition-number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.edition-type {
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.edition-card-body {
    padding: var(--spacing-5);
}

.edition-date {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-3);
}

.edition-date svg {
    width: 16px;
    height: 16px;
}

.edition-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-2);
    line-height: 1.4;
}

.edition-description {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin-bottom: var(--spacing-4);
}

.edition-card-footer {
    padding: var(--spacing-4) var(--spacing-5);
    border-top: 1px solid var(--color-gray-100);
    display: flex;
    gap: var(--spacing-3);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    text-decoration: none;
    cursor: pointer;
    border: none;
}

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

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

.btn-secondary {
    background: var(--color-gray-100);
    color: var(--color-gray-700);
}

.btn-secondary:hover {
    background: var(--color-gray-200);
}

.btn-success {
    background: var(--color-accent);
    color: var(--color-white);
}

.btn-success:hover {
    background: var(--color-accent-light);
    color: var(--color-white);
}

.btn-lg {
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
}

.btn-block {
    width: 100%;
}

/* ========================================
   Search Box
   ======================================== */
.search-box {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-6);
    box-shadow: var(--shadow);
    margin-bottom: var(--spacing-8);
    border: 1px solid var(--color-gray-200);
}

.search-form {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-4);
}

.search-input-group {
    flex: 1;
    min-width: 200px;
}

.search-input-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-2);
}

.search-input-group input,
.search-input-group select {
    width: 100%;
    padding: var(--spacing-3);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.search-input-group input:focus,
.search-input-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 58, 92, 0.1);
}

.search-actions {
    display: flex;
    align-items: flex-end;
    gap: var(--spacing-3);
}

/* ========================================
   Stats Section
   ======================================== */
.stats-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-8);
    margin-bottom: var(--spacing-8);
    color: var(--color-white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-6);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-4);
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-1);
}

.stat-label {
    font-size: var(--font-size-sm);
    opacity: 0.85;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ========================================
   Footer
   ======================================== */
.main-footer {
    background: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: var(--spacing-12) 0 var(--spacing-6);
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-8);
}

.footer-info {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-4);
}

.footer-logo {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius);
    background: var(--color-white);
    object-fit: contain;
}

.footer-text h4 {
    color: var(--color-white);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2);
}

.footer-text p {
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.footer-links h5,
.footer-contact h5 {
    color: var(--color-white);
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-4);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.footer-links a {
    color: var(--color-gray-400);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

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

.footer-contact p {
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-2);
}

.footer-contact a {
    color: var(--color-secondary);
}

.footer-contact a:hover {
    color: var(--color-secondary-light);
}

.footer-bottom {
    border-top: 1px solid var(--color-gray-800);
    padding-top: var(--spacing-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-4);
    font-size: var(--font-size-sm);
}

.footer-version {
    opacity: 0.6;
}

/* ========================================
   Alerts & Flash Messages
   ======================================== */
.alert {
    padding: var(--spacing-4);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-4);
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.alert-success {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #86efac;
}

.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-warning {
    background: #fefce8;
    color: #854d0e;
    border: 1px solid #fef08a;
}

.alert-info {
    background: #eff6ff;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

/* ========================================
   Empty State
   ======================================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-16) var(--spacing-4);
    color: var(--color-gray-500);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-4);
    opacity: 0.5;
}

.empty-state-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-2);
}

.empty-state-text {
    margin-bottom: var(--spacing-6);
}

/* ========================================
   Pagination
   ======================================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2);
    margin-top: var(--spacing-8);
}

.pagination-link {
    padding: var(--spacing-2) var(--spacing-4);
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--border-radius);
    color: var(--color-gray-700);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.pagination-link:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-900);
}

.pagination-link.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 768px) {
    .header-top .container {
        flex-wrap: wrap;
    }
    
    .header-nav {
        width: 100%;
        order: 3;
    }
    
    .nav-list {
        display: none;
        flex-direction: column;
        width: 100%;
        padding-top: var(--spacing-4);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-list.active {
        display: flex;
    }
    
    .nav-link {
        padding: var(--spacing-3);
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .brand-title {
        font-size: var(--font-size-lg);
    }
    
    .brand-subtitle {
        font-size: var(--font-size-xs);
    }
    
    .brand-logo {
        width: 50px;
        height: 50px;
    }
    
    .editions-grid {
        grid-template-columns: 1fr;
    }
    
    .search-form {
        flex-direction: column;
    }
    
    .search-actions {
        width: 100%;
    }
    
    .search-actions .btn {
        flex: 1;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .page-title {
        font-size: var(--font-size-2xl);
    }
}

/* ========================================
   PDF Viewer
   ======================================== */
.pdf-viewer-container {
    background: var(--color-gray-800);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-6);
}

.pdf-viewer-toolbar {
    background: var(--color-gray-900);
    padding: var(--spacing-3) var(--spacing-4);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pdf-viewer-toolbar .btn {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
}

.pdf-viewer-toolbar .btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.pdf-viewer {
    width: 100%;
    height: 80vh;
    border: none;
}

/* ========================================
   About Page
   ======================================== */
.about-content {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-8);
    box-shadow: var(--shadow);
}

.about-content h2 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-4);
    font-size: var(--font-size-xl);
}

.about-content p {
    margin-bottom: var(--spacing-4);
    color: var(--color-gray-700);
    line-height: 1.8;
}

.about-content ul {
    margin-left: var(--spacing-6);
    margin-bottom: var(--spacing-4);
}

.about-content li {
    list-style: disc;
    margin-bottom: var(--spacing-2);
    color: var(--color-gray-700);
}

/* ========================================
   Animation - Fade In
   ======================================== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.4s ease forwards;
}