/* ==========================================
   SISTEMA DE DESIGN - BUSCALEGIS
   ========================================== */

:root {
    /* Cores */
    --primary-blue: #1a73e8;
    --primary-blue-hover: #1557b0;
    --primary-blue-light: #e8f0fe;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --text-light: #9aa0a6;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-hover: #f1f3f4;
    --border-color: #dadce0;

    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
    --shadow-md: 0 1px 3px 0 rgba(60, 64, 67, 0.3), 0 4px 8px 3px rgba(60, 64, 67, 0.15);

    /* Bordas */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 24px;

    /* Transições */
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.25s ease-out;
}

/* ==========================================
   RESET E BASE
   ========================================== */

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

html {
    font-size: 14px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-weight: 400;
}

/* ==========================================
   LAYOUT
   ========================================== */

.page-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ==========================================
   HEADER
   ========================================== */

.main-header {
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;  /* Reduzido de 16px para 12px */
    background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(248, 249, 250, 0.5) 100%);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
}

.logo-icon {
    font-size: 28px;
}

.logo-text h1 {
    font-family: 'Poppins', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 22px;
    font-weight: 600;
    color: var(--primary-blue);
    margin: 0;
    letter-spacing: -0.5px;
}

.logo-text .subtitle {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
    margin: 0;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.header-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 12px;
    border-radius: var(--border-radius-sm);
    transition: background-color var(--transition-fast);
}

.header-nav a:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

/* ==========================================
   HOMEPAGE
   ========================================== */

.search-section {
    padding: 40px 0 20px 0;  /* Reduzido de 60px para 40px top, 20px bottom */
    text-align: center;
}

.search-container {
    max-width: 600px;
    margin: 0 auto;
}

.search-title {
    font-family: 'Poppins', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 36px;
    color: var(--text-primary);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.2;
    text-align: center;
    letter-spacing: -0.5px;
}

.search-input-wrapper {
    display: flex;
    border-radius: var(--border-radius-xl);
    border: 2px solid var(--border-color);
    padding: 4px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    background: var(--bg-input);
    overflow: hidden;
}

.search-input-wrapper:focus-within {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-blue);
}

.search-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 16px;
    padding: 12px 20px;
    background: transparent;
    border-radius: var(--border-radius-xl);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-weight: 400;
}

.search-input::placeholder {
    color: var(--text-light);
    font-weight: 400;
}

.search-button {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-hover));
    color: white;
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.search-button:hover {
    background-color: var(--primary-blue-hover);
}

.advanced-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 13px;
    margin-top: 16px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px;
    border-radius: var(--border-radius-sm);
}

.advanced-toggle:hover {
    color: var(--text-primary);
}

.advanced-toggle svg {
    transition: transform var(--transition-normal);
}

.advanced-toggle svg.rotated {
    transform: rotate(180deg);
}

.advanced-panel {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    margin-top: 16px;
    text-align: left;
    border: 1px solid var(--border-color);
}

.advanced-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 6px;
}

.form-group select,
.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    background-color: var(--bg-primary);
}

.form-group select:focus,
.form-group input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 2px var(--primary-blue-light);
}

/* ==========================================
   ÚLTIMAS PUBLICAÇÕES
   ========================================== */

.latest-section {
    background: linear-gradient(180deg, rgba(248, 249, 250, 0.3) 0%, var(--bg-secondary) 40%);
    padding: 30px 0;  /* Ainda mais integrado */
    /* border-top removida para integração fluida */
}

.section-header {
    text-align: center;
    margin-bottom: 32px;  /* Reduzido de 40px para 32px */
}

.section-title {
    font-family: 'Poppins', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 26px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 8px;
    letter-spacing: -0.3px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.4;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-weight: 400;
}

.latest-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.publication-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    display: flex;
    flex-direction: column;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.publication-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-sm);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.document-type {
    background-color: var(--primary-blue-light);
    color: var(--primary-blue);
    padding: 3px 8px;
    border-radius: var(--border-radius-sm);
    font-weight: 500;
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    flex-grow: 1;
}

.card-summary {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 16px;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
    margin-top: auto;
}

.view-document {
    color: var(--primary-blue);
    font-weight: 500;
}

/* ==========================================
   PÁGINA DE RESULTADOS
   ========================================== */

.search-results {
    border-top: 1px solid var(--border-color);
}

.compact-search {
    padding: 20px 0;  /* Aumentado um pouco para dar mais respiro */
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);  /* Sombra sutil */
}

.compact-container {
    display: flex;
    align-items: center;
    gap: 20px;  /* Reduzido para melhor integração */
}

.compact-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 500;
    color: var(--primary-blue);
}

.compact-search-wrapper {
    flex: 1;
    display: flex;
    background-color: var(--bg-input);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-xl);
    padding: 4px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    overflow: hidden;
}

.compact-search-wrapper:focus-within {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-md);
}

.compact-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 15px;
    padding: 10px 16px;
    background: transparent;
    color: var(--text-primary);
    border-radius: var(--border-radius-xl);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-weight: 400;
}

.compact-input::placeholder {
    color: var(--text-light);
    font-weight: 400;
}

.compact-button {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-hover));
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.compact-button:hover {
    background-color: var(--primary-blue-hover);
}

.back-button {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: var(--border-radius-xl);  /* Mais arredondado para harmonizar */
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.back-button:hover {
    background: var(--bg-hover);
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.results-area {
    padding: 32px 0;  /* Reduzido de 40px para 32px */
    background: linear-gradient(180deg, rgba(248, 249, 250, 0.3) 0%, var(--bg-primary) 20%);
}

.results-container {
    max-width: 700px;
    margin: 0 auto;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.results-info {
    color: var(--text-secondary);
    font-size: 13px;
}

.results-filters .filter-button {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 12px;
    margin-left: 8px;
    border-radius: var(--border-radius-md);
    cursor: pointer;
}

.results-filters .filter-button.active {
    background-color: var(--primary-blue-light);
    color: var(--primary-blue);
    border-color: var(--primary-blue);
    font-weight: 500;
}

.result-item {
    padding: 24px 0;
    border-bottom: 1px solid var(--border-color);
}

.result-item:last-child {
    border-bottom: none;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
}

.result-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--text-secondary);
}

.result-type {
    background-color: var(--bg-hover);
    padding: 3px 8px;
    border-radius: var(--border-radius-sm);
    font-weight: 500;
}

.similarity-score {
    font-size: 13px;
    font-weight: 500;
    color: var(--primary-blue);
}

.result-title {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    gap: 8px;
}

.resumo-tipo {
    font-size: 16px;
    opacity: 0.7;
    cursor: help;
    transition: opacity var(--transition-fast);
}

.resumo-tipo:hover {
    opacity: 1;
}

.result-summary {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.result-actions .action-button {
    background-color: var(--primary-blue);
    color: white;
    border: none;
    padding: 10px 16px;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-size: 14px;
    transition: background-color var(--transition-fast);
}

.result-actions .action-button:hover {
    background-color: var(--primary-blue-hover);
}

/* ==========================================
   FOOTER
   ========================================== */

.main-footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 24px 0;
    margin-top: auto;
    font-size: 13px;
    color: var(--text-secondary);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 20px;
}

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

/* ==========================================
   UTILITÁRIOS
   ========================================== */

.hidden {
    display: none !important;
}

.loading-state,
.no-results-state,
.error-message {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

.spinner {
    border: 4px solid var(--bg-hover);
    border-top: 4px solid var(--primary-blue);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

@media (max-width: 768px) {
    .header-container,
    .footer-container {
        flex-direction: column;
        gap: 16px;
    }

    .compact-container {
        flex-wrap: wrap;
    }

    .compact-search-wrapper {
        order: 3;
        width: 100%;
    }

    .results-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}

/* ==========================================
   SEÇÃO DE RERANKING INTELIGENTE
   ========================================== */

.rerank-section {
    background: linear-gradient(135deg, #f8f9ff 0%, #f0f4ff 100%);
    border: 2px solid #e0e7ff;
    border-radius: 12px;
    padding: 20px;
    margin-top: 16px;
}

.rerank-label {
    display: block;
    margin-bottom: 16px;
}

.rerank-title {
    display: block;
    font-weight: 600;
    font-size: 16px;
    color: #1e293b;
    margin-bottom: 4px;
}

.rerank-subtitle {
    display: block;
    font-size: 13px;
    color: #64748b;
    font-weight: 400;
}

.rerank-controls {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: #374151;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: #3b82f6;
}

.rerank-options {
    padding-left: 26px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: opacity 0.3s ease;
}

.rerank-options.disabled {
    opacity: 0.5;
    pointer-events: none;
}

.rerank-options label {
    font-size: 13px;
    color: #6b7280;
    font-weight: 500;
}

.rerank-options select {
    padding: 8px 12px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 13px;
    background: white;
    color: #374151;
    cursor: pointer;
}

.rerank-options select:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Dark theme para reranking */
[data-theme="dark"] .rerank-section {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    border-color: #475569;
}

[data-theme="dark"] .rerank-title {
    color: #f1f5f9;
}

[data-theme="dark"] .rerank-subtitle {
    color: #94a3b8;
}

[data-theme="dark"] .checkbox-label {
    color: #e2e8f0;
}

[data-theme="dark"] .rerank-options label {
    color: #94a3b8;
}

[data-theme="dark"] .rerank-options select {
    background: #334155;
    border-color: #475569;
    color: #e2e8f0;
}

[data-theme="dark"] .rerank-options select:focus {
    border-color: #60a5fa;
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.1);
}