/* ============================================
   VARIÁVEIS E RESET
   ============================================ */
:root {
    /* Cores Principais - Baseado no design moderno */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --accent-light: #fbbf24;
    
    /* Cores de Texto */
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --text-white: #ffffff;
    
    /* Cores de Fundo */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-dark: #111827;
    --bg-overlay: rgba(0, 0, 0, 0.5);
    
    /* Bordas e Sombras */
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-overlay: linear-gradient(180deg, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.6) 100%);
    
    /* Espaçamentos */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Transições */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ============================================
   NAVBAR - Design Moderno
   ============================================ */
.navbar {
    background: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    transition: all var(--transition-base);
}

.logo a:hover {
    color: var(--primary-dark);
    transform: translateY(-2px);
}

.logo i {
    font-size: 1.8rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all var(--transition-base);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    transition: all var(--transition-base);
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.menu-toggle:hover span {
    background: var(--primary-color);
}

/* ============================================
   HERO SECTION - Design Moderno
   ============================================ */
.hero {
    position: relative;
    min-height: 700px;
    display: flex;
    align-items: center;
    padding: var(--spacing-2xl) 0;
    background: var(--gradient-hero);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.1)" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,165.3C1248,149,1344,107,1392,85.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.3;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-overlay);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    text-align: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 1.5rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: 1.35rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-xl);
    font-weight: 400;
    animation: fadeInUp 0.8s ease 0.2s both;
}

/* ============================================
   SEARCH CONTAINER - Design Moderno
   ============================================ */
.search-container {
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-2xl);
    margin-top: var(--spacing-lg);
    animation: fadeInUp 0.8s ease 0.4s both;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.search-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-light);
    padding-bottom: var(--spacing-sm);
}

.tab-btn {
    background: none;
    border: none;
    padding: 0.875rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.tab-btn:hover {
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.05);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.05);
}

.tab-btn i {
    font-size: 0.9rem;
}

/* ============================================
   FORMULÁRIO - Design Moderno
   ============================================ */
.search-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-md);
    align-items: end;
}

.form-group {
    position: relative;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.form-group label i {
    color: var(--primary-color);
    font-size: 0.85rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    transition: all var(--transition-base);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
    transform: translateY(-2px);
}

.form-group input::placeholder {
    color: var(--text-light);
}

.swap-btn {
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-md);
}

.swap-btn:hover {
    transform: rotate(180deg) scale(1.1);
    box-shadow: var(--shadow-lg);
}

.suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-top: 0.5rem;
    max-height: 250px;
    overflow-y: auto;
    z-index: 100;
    display: none;
    box-shadow: var(--shadow-xl);
}

.suggestions.active {
    display: block;
    animation: fadeInDown 0.3s ease;
}

.suggestion-item {
    padding: 1rem 1.25rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid var(--border-light);
}

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

.suggestion-item:hover {
    background: var(--bg-secondary);
    padding-left: 1.5rem;
}

.suggestion-item i {
    color: var(--primary-color);
    font-size: 0.9rem;
}

/* ============================================
   PASSAGEIROS SELECTOR
   ============================================ */
.passageiros-selector {
    position: relative;
}

.passageiros-btn {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1rem;
    transition: all var(--transition-base);
    color: var(--text-primary);
}

.passageiros-btn:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.passageiros-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-top: 0.5rem;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-xl);
    z-index: 100;
    display: none;
    animation: fadeInDown 0.3s ease;
}

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

.passageiro-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-light);
}

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

.passageiro-item label {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.counter {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.counter-btn {
    width: 36px;
    height: 36px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 600;
}

.counter-btn:hover:not(:disabled) {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.counter-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.counter span {
    min-width: 35px;
    text-align: center;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.passageiros-actions {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--border-color);
}

/* ============================================
   BOTÕES - Design Moderno
   ============================================ */
.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-block {
    width: 100%;
}

.btn-search {
    padding: 1.25rem 3rem;
    font-size: 1.1rem;
    margin-top: 0.5rem;
    font-weight: 700;
}

.form-actions {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-sm);
}

.btn-secondary {
    background: var(--bg-primary);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   RESULTS SECTION
   ============================================ */
.results-section {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-secondary);
}

.results-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: var(--spacing-xl);
}

/* ============================================
   FILTERS SIDEBAR - Design Moderno
   ============================================ */
.filters-sidebar {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    height: fit-content;
    position: sticky;
    top: 100px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

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

.filters-header h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
}

.clear-filters {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition-base);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
}

.clear-filters:hover {
    background: rgba(37, 99, 235, 0.1);
    transform: translateX(2px);
}

.filter-group {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
}

.filter-group:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.filter-group h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.price-range {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.price-range input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
    cursor: pointer;
}

.price-range input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.price-range input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: var(--shadow-lg);
}

.price-range input[type="range"]::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.price-range input[type="range"]::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: var(--shadow-lg);
}

.price-display {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 0.95rem;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.checkbox-label:hover {
    background: var(--bg-secondary);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.time-slots {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.time-slot {
    padding: 0.875rem 0.5rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 0.85rem;
    text-align: center;
    line-height: 1.5;
    font-weight: 500;
}

.time-slot:hover {
    border-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.05);
    transform: translateY(-2px);
}

.time-slot.active {
    border-color: var(--primary-color);
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

/* ============================================
   RESULTS CONTENT - Design Moderno
   ============================================ */
.results-content {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.results-info h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.results-info p {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
}

.sort-options {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sort-options label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.sort-options select {
    padding: 0.75rem 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all var(--transition-base);
    color: var(--text-primary);
}

.sort-options select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.results-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* ============================================
   FLIGHT CARD - Design Moderno
   ============================================ */
.flight-card {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.flight-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transition: transform var(--transition-base);
}

.flight-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.flight-card:hover::before {
    transform: scaleY(1);
}

.flight-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--spacing-md);
}

.flight-price {
    text-align: right;
}

.flight-price .price {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.flight-price .price-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-top: 0.25rem;
}

.flight-route {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
}

.route-info {
    flex: 1;
}

.route-time {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.route-airport {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    font-weight: 500;
}

.route-duration {
    text-align: center;
    padding: 0 var(--spacing-md);
    min-width: 140px;
}

.duration-line {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.duration-line::before,
.duration-line::after {
    content: '';
    flex: 1;
    height: 2px;
    background: var(--border-color);
}

.duration-line i {
    color: var(--primary-color);
    font-size: 1.1rem;
}

.duration-time {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.duration-stops {
    font-size: 0.8rem;
    color: var(--accent-color);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.flight-details {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-light);
    margin-top: var(--spacing-md);
}

.flight-airline {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.flight-baggage {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.flight-baggage span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.flight-baggage i {
    color: var(--primary-color);
}

.flight-actions {
    margin-top: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-light);
}

.flight-actions .btn {
    flex: 1;
    padding: 0.875rem 1.5rem;
    font-size: 0.95rem;
}

.no-results {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-lg);
    color: var(--text-secondary);
}

.no-results i {
    font-size: 5rem;
    margin-bottom: var(--spacing-md);
    color: var(--border-color);
    opacity: 0.5;
}

.no-results h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-weight: 700;
}

.no-results p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* ============================================
   SOBRE SECTION - Design Moderno
   ============================================ */
.sobre {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-primary);
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    letter-spacing: -0.02em;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sobre-description {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.8;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.feature-card {
    text-align: center;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    background: var(--bg-secondary);
    transition: all var(--transition-base);
    border: 2px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card i {
    font-size: 3.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
    display: block;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}

/* ============================================
   CONTATO SECTION - Design Moderno
   ============================================ */
.contato {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-sm);
    line-height: 1.8;
}

.contato-content {
    max-width: 900px;
    margin: 0 auto;
}

.contato-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.info-item {
    display: flex;
    align-items: start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 2px solid var(--border-light);
}

.info-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.info-item i {
    font-size: 2.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-top: 0.25rem;
}

.info-text h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.info-text p {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
}

/* ============================================
   FOOTER - Design Moderno
   ============================================ */
.footer {
    background: var(--bg-dark);
    color: var(--text-white);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: var(--spacing-md);
    color: var(--text-white);
    font-weight: 700;
}

.footer-section h3 i {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    font-size: 0.95rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all var(--transition-base);
    font-size: 0.95rem;
    display: inline-block;
}

.footer-section a:hover {
    color: var(--text-white);
    transform: translateX(4px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

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

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

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .results-layout {
        grid-template-columns: 1fr;
    }
    
    .filters-sidebar {
        position: static;
        margin-bottom: var(--spacing-lg);
    }
    
    .hero-title {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--bg-primary);
        width: 100%;
        text-align: center;
        transition: all var(--transition-base);
        box-shadow: var(--shadow-xl);
        padding: var(--spacing-xl) 0;
        gap: var(--spacing-md);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero {
        min-height: 600px;
        padding: var(--spacing-xl) 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .swap-btn {
        transform: rotate(90deg);
        margin: 0.5rem auto;
    }
    
    .search-container {
        padding: var(--spacing-md);
        border-radius: var(--radius-xl);
    }
    
    .results-header {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: start;
    }
    
    .flight-route {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .route-duration {
        width: 100%;
        padding: var(--spacing-sm) 0;
    }
    
    .section-title {
        font-size: 2.25rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .contato-info {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .search-tabs {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .tab-btn {
        width: 100%;
        justify-content: center;
    }
    
    .time-slots {
        grid-template-columns: 1fr;
    }
    
    .flight-actions {
        flex-direction: column;
    }
    
    .flight-actions .btn {
        width: 100%;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
}