/* ============================================
   ESTILOS PRINCIPAIS - Motor de Busca Google
   ============================================ */

:root {
    --primary-color: #1a73e8;
    --primary-hover: #1557b0;
    --secondary-color: #5f6368;
    --background-color: #ffffff;
    --surface-color: #f8f9fa;
    --border-color: #dadce0;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --highlight-bg: #fff3cd;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --radius: 24px;
    --radius-sm: 8px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
}

/* ============================================
   CABEÇALHO
   ============================================ */

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #4285f4, #34a853, #fbbc05, #ea4335);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.nav-links a.active {
    color: var(--primary-color);
    font-weight: 500;
}

/* ============================================
   ÁREA DE BUSCA
   ============================================ */

.search-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 4rem 2rem;
    text-align: center;
}

.search-logo {
    font-size: 5rem;
    font-weight: bold;
    margin-bottom: 1rem;
    letter-spacing: -2px;
}

.search-logo .blue { color: #4285f4; }
.search-logo .red { color: #ea4335; }
.search-logo .yellow { color: #fbbc05; }
.search-logo .green { color: #34a853; }

.search-box {
    display: flex;
    align-items: center;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s, border-color 0.2s;
}

.search-box:hover,
.search-box:focus-within {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.search-box input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1.1rem;
    padding: 0.5rem;
}

.search-box .search-icon {
    color: var(--text-secondary);
    margin-right: 0.5rem;
}

.search-box .mic-icon,
.search-box .lens-icon {
    cursor: pointer;
    padding: 0.5rem;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.search-box .mic-icon:hover,
.search-box .lens-icon:hover {
    color: var(--primary-color);
}

/* ============================================
   AUTOCOMPLETE
   ============================================ */

.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    max-height: 400px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
}

.autocomplete-dropdown.active {
    display: block;
}

.autocomplete-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: background 0.2s;
}

.autocomplete-item:hover {
    background: var(--surface-color);
}

.autocomplete-item .icon {
    color: var(--text-secondary);
    margin-right: 0.75rem;
}

.autocomplete-item .text {
    flex: 1;
}

.autocomplete-item .url {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* ============================================
   BOTÕES DE AÇÃO
   ============================================ */

.search-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.search-buttons button {
    background: var(--surface-color);
    border: 1px solid transparent;
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.2s, box-shadow 0.2s;
}

.search-buttons button:hover {
    background: #f1f3f4;
    box-shadow: var(--shadow-sm);
}

/* ============================================
   SUGESTÕES
   ============================================ */

.suggestions {
    margin-top: 2rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.suggestions a {
    color: var(--primary-color);
    text-decoration: none;
    margin: 0 0.5rem;
}

.suggestions a:hover {
    text-decoration: underline;
}

/* ============================================
   HISTÓRICO
   ============================================ */

.history-section {
    max-width: 600px;
    margin: 2rem auto;
    text-align: left;
}

.history-title {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.history-title button {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    font-size: 0.85rem;
}

.history-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.history-item {
    background: var(--surface-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.2s;
}

.history-item:hover {
    background: #e8eaed;
}

/* ============================================
   RODAPÉ
   ============================================ */

.footer {
    background: var(--surface-color);
    padding: 1rem 2rem;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

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

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
}

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

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

.footer-bottom p {
    margin: 0.3rem 0;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.footer-bottom .founder {
    color: var(--text-primary);
    font-weight: 500;
}

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

.results-header {
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
}

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

.results-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 0;
    border-bottom: 3px solid transparent;
}

.results-nav a.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.results-stats {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ============================================
   RESULTADOS
   ============================================ */

.results-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 1rem 2rem;
}

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

.result-url {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #202124;
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.result-url:hover {
    text-decoration: underline;
}

.result-favicon {
    width: 16px;
    height: 16px;
    border-radius: 2px;
}

.result-title {
    color: #1a0dab;
    font-size: 1.2rem;
    text-decoration: none;
    margin-bottom: 0.25rem;
    display: block;
}

.result-title:hover {
    text-decoration: underline;
}

.result-title mark {
    background: none;
    color: var(--text-primary);
    font-weight: normal;
}

.result-description {
    color: #4d5156;
    font-size: 0.95rem;
    line-height: 1.5;
}

.result-description mark {
    background: var(--highlight-bg);
    color: var(--text-primary);
    padding: 0 2px;
    border-radius: 2px;
}

.result-meta {
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ============================================
   FILTROS
   ============================================ */

.filters-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--background-color);
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-group label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.filter-group select {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: white;
    cursor: pointer;
}

/* ============================================
   PAGINAÇÃO
   ============================================ */

.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    padding: 2rem;
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    text-decoration: none;
    color: var(--text-primary);
    transition: background 0.2s;
}

.pagination a:hover {
    background: var(--surface-color);
}

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

.pagination .prev,
.pagination .next {
    width: auto;
    padding: 0 1rem;
    border-radius: 20px;
}

/* ============================================
   "VOCÊ QUIS DIZER"
   ============================================ */

.did-you-mean {
    margin: 1rem 0;
    font-size: 0.9rem;
}

.did-you-mean a {
    color: var(--primary-color);
    text-decoration: none;
}

.did-you-mean a:hover {
    text-decoration: underline;
}

/* ============================================
   RESPONSIVO
   ============================================ */

@media (max-width: 768px) {
    .header {
        padding: 1rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .search-container {
        padding: 2rem 1rem;
    }
    
    .search-logo {
        font-size: 3rem;
    }
    
    .search-box {
        padding: 0.5rem 0.75rem;
    }
    
    .search-box input {
        font-size: 1rem;
    }
    
    .results-container {
        padding: 1rem;
    }
    
    .filters-bar {
        flex-wrap: wrap;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
    }
}

/* ============================================
   ANIMAÇÕES
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.autocomplete-dropdown.active {
    animation: fadeIn 0.2s ease-out;
}

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.loading-container {
    text-align: center;
    padding: 2rem;
}

.loading-container p {
    margin-top: 1rem;
    color: #666;
}

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