/* ===== VARIÁVEIS CSS ===== */
:root {
    --primary-color: #6b0101;
    --primary-light: #8a1a1a;
    --secondary-color: #f8f9fa;
    --accent-color: #007bff;
    --text-dark: #2c3e50;
    --text-light: #6c757d;
    --border-color: #e9ecef;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.15);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

/* ===== HEADER MODERNO ===== */
.header-modern {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header-modern .navbar {
    padding: 1rem 0;
}

.logo {
    height: 50px;
    transition: var(--transition);
}

.logo:hover {
    transform: scale(1.05);
}

.navbar-nav .nav-link {
    color: var(--text-dark);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: var(--transition);
    text-decoration: none;
}

.navbar-nav .nav-link:hover {
    background: var(--primary-color);
    color: white !important;
    transform: translateY(-2px);
    text-decoration: none;
}

.navbar-nav .nav-link:focus {
    color: var(--text-dark);
    text-decoration: none;
}

/* ===== HERO SECTION ===== */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 1;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

.hero-decoration {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    position: relative;
    z-index: 1;
}

.decoration-line {
    width: 60px;
    height: 2px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 1px;
}

.hero-decoration i {
    color: #ffd700;
    font-size: 1.2rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* ===== SEARCH SECTION ===== */
.search-section {
    padding: 4rem 0;
    background: white;
}

.search-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 2.5rem;
    transition: var(--transition);
}

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

.search-form .form-label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.search-form .form-control,
.search-form .form-select {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: var(--transition);
}

.search-form .form-control:focus,
.search-form .form-select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
    outline: none;
}

.search-form .form-control.is-invalid,
.search-form .form-select.is-invalid {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.form-actions .btn {
    flex: 1;
    min-width: 200px;
    max-width: 250px;
}

.search-btn {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border: none;
    padding: 0.75rem 2rem;
    font-weight: 600;
    transition: var(--transition);
    min-width: 150px;
}

.search-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.search-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-outline-secondary {
    border: 2px solid var(--text-light);
    color: var(--text-light);
    padding: 0.75rem 2rem;
    font-weight: 600;
    transition: var(--transition);
    min-width: 150px;
}

.btn-outline-secondary:hover {
    background: var(--text-light);
    border-color: var(--text-light);
    color: white;
    transform: translateY(-2px);
}

.btn-success {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    border: none;
    padding: 0.75rem 2rem;
    font-weight: 600;
    transition: var(--transition);
    min-width: 150px;
}

.btn-success:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    background: linear-gradient(135deg, #218838 0%, #1ea085 100%);
}

/* ===== FEATURES SECTION ===== */
.features-section {
    padding: 4rem 0;
    background: var(--secondary-color);
}

.feature-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.feature-card-hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-icon i {
    font-size: 2rem;
    color: white;
}

.feature-card h4 {
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== FOOTER MODERNO ===== */
.footer-modern {
    background: var(--text-dark);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer-modern p {
    margin: 0;
    opacity: 0.8;
}

/* ===== RESPONSIVIDADE ===== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .search-card {
        padding: 1.5rem;
        margin: 0 1rem;
    }
    
    .form-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .form-actions .btn {
        width: 100%;
        max-width: 300px;
        min-width: auto;
    }
    
    .feature-card {
        margin-bottom: 2rem;
    }
}

@media (max-width: 576px) {
    .hero-section {
        padding: 2rem 0;
    }
    
    .search-section {
        padding: 2rem 0;
    }
    
    .features-section {
        padding: 2rem 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .search-card {
        padding: 1rem;
        margin: 0 0.5rem;
    }
}

/* ===== ANIMAÇÕES ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.search-card,
.feature-card {
    animation: fadeInUp 0.6s ease-out;
}

.feature-card:nth-child(2) {
    animation-delay: 0.2s;
}

.feature-card:nth-child(3) {
    animation-delay: 0.4s;
}

/* ===== ESTADOS DE CARREGAMENTO ===== */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

/* ===== MELHORIAS DE ACESSIBILIDADE ===== */
.form-control:focus,
.form-select:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

.btn:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* ===== CORREÇÕES DE ESTILO ===== */
.navbar-nav .nav-link {
    color: var(--text-dark) !important;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:active {
    color: white !important;
}

.navbar-nav .nav-link:visited {
    color: var(--text-dark) !important;
}

/* ===== ESTADOS DE HOVER PARA DISPOSITIVOS TÁTEIS ===== */
@media (hover: hover) {
    .feature-card:hover {
        transform: translateY(-10px);
    }
    
    .search-btn:hover:not(:disabled) {
        transform: translateY(-2px);
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    .header-modern,
    .hero-section,
    .features-section,
    .footer-modern {
        display: none;
    }
    
    .search-section {
        padding: 0;
    }
    
    .search-card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}