/* ============================================
   CheapDummyFlight - Custom Styles
   Optimized for performance and SEO
   ============================================ */

/* CSS Variables for consistent theming */
:root {
    --primary-color: #0d6efd;
    --primary-dark: #0b5ed7;
    --secondary-color: #f97316;
    --accent-teal: #14b8a6;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --text-color: #334155;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --success-color: #22c55e;
    --warning-color: #eab308;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    color: var(--text-color);
    line-height: 1.6;
    background-color: #ffffff;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--dark-color);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

@media (max-width: 768px) {
    h1 { font-size: 1.875rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
}

p {
    margin-bottom: 1rem;
    color: var(--text-color);
}

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

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

/* Navigation Styles */
.navbar {
    background-color: #ffffff !important;
    transition: box-shadow var(--transition-normal);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar-brand img {
    max-height: 50px;
    width: auto;
}

.nav-link {
    color: var(--text-color) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: color var(--transition-fast);
}

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

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #f0fdf4 0%, #ecfeff 50%, #eff6ff 100%);
    padding: 4rem 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(20, 184, 166, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-color);
    line-height: 1.2;
}

.hero-title .highlight {
    color: var(--secondary-color);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 600px;
}

@media (max-width: 768px) {
    .hero-section {
        padding: 2.5rem 0;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
}

/* Buttons */
.btn {
    font-weight: 500;
    padding: 0.625rem 1.5rem;
    border-radius: 0.5rem;
    transition: all var(--transition-fast);
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-1px);
}

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

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    color: #ffffff;
}

/* Cards */
.card {
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.card-feature {
    background: linear-gradient(180deg, #ffffff 0%, var(--light-color) 100%);
    border: none;
    box-shadow: var(--shadow-sm);
}

/* Pricing Cards */
.pricing-card {
    border: 2px solid var(--border-color);
    border-radius: 1rem;
    overflow: hidden;
    transition: all var(--transition-normal);
}

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

.pricing-card.featured {
    border-color: var(--primary-color);
    position: relative;
}

.pricing-card.featured::before {
    content: 'Popular';
    position: absolute;
    top: 1rem;
    right: -2rem;
    background: var(--secondary-color);
    color: white;
    padding: 0.25rem 2.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    transform: rotate(45deg);
}

.pricing-header {
    padding: 1.5rem;
    background: var(--light-color);
    border-bottom: 1px solid var(--border-color);
}

.pricing-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-color);
}

.pricing-price .currency {
    font-size: 1.25rem;
    vertical-align: super;
}

.pricing-body {
    padding: 1.5rem;
}

.pricing-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    color: var(--text-color);
}

.pricing-feature i {
    color: var(--success-color);
}

/* Feature Highlights */
.feature-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: #dcfce7;
    color: #166534;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.feature-badge.warning {
    background: #fef3c7;
    color: #92400e;
}

.feature-badge.info {
    background: #dbeafe;
    color: #1e40af;
}

/* Process Steps */
.process-step {
    text-align: center;
    padding: 2rem 1rem;
}

.process-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-teal) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.process-connector {
    position: relative;
}

.process-connector::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -50%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-teal));
}

@media (max-width: 768px) {
    .process-connector::after {
        display: none;
    }
}

/* Testimonials */
.testimonial-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 1rem;
    left: 1.5rem;
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.2;
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-stars {
    color: var(--warning-color);
    margin-bottom: 1rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
}

/* FAQ Section */
.faq-section {
    background: var(--light-color);
}

.accordion-item {
    border: 1px solid var(--border-color);
    margin-bottom: 1rem;
    border-radius: 0.75rem !important;
    overflow: hidden;
}

.accordion-button {
    font-weight: 500;
    color: var(--dark-color);
    background-color: #ffffff;
    padding: 1.25rem 1.5rem;
}

.accordion-button:not(.collapsed) {
    background-color: var(--light-color);
    color: var(--primary-color);
}

.accordion-button:focus {
    box-shadow: none;
    border-color: var(--primary-color);
}

.accordion-body {
    padding: 1.25rem 1.5rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, #dcfce7 0%, #d1fae5 100%);
    border-top: 4px solid var(--success-color);
    padding: 4rem 0;
}

.cta-price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--success-color);
}

/* Contact Form */
.contact-form .form-control,
.contact-form .form-select {
    padding: 0.875rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.contact-form .form-control:focus,
.contact-form .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.15);
}

.contact-form label {
    font-weight: 500;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

/* Booking Form */
.booking-form {
    background: #ffffff;
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    padding: 2rem;
}

/* Info Boxes */
.info-box {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--light-color);
    border-radius: 0.75rem;
    border-left: 4px solid var(--primary-color);
}

.info-box.success {
    background: #f0fdf4;
    border-left-color: var(--success-color);
}

.info-box.warning {
    background: #fffbeb;
    border-left-color: var(--warning-color);
}

/* Back to Top Button */
.btn-back-to-top {
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 1000;
}

.btn-back-to-top.show {
    opacity: 1;
    visibility: visible;
}

/* Utilities */
.section-padding {
    padding: 5rem 0;
}

@media (max-width: 768px) {
    .section-padding {
        padding: 3rem 0;
    }
}

.section-title {
    position: relative;
    margin-bottom: 3rem;
    text-align: center;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-teal));
    margin: 1rem auto 0;
    border-radius: 2px;
}

.text-gradient {
    background: linear-gradient(90deg, var(--primary-color), var(--accent-teal));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Image placeholder for dummy ticket display */
.ticket-preview {
    background: linear-gradient(135deg, #fefce8 0%, #fff7ed 100%);
    border: 2px dashed var(--secondary-color);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
}

/* Loading spinner */
.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.spinner-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* Alert customization */
.alert {
    border: none;
    border-radius: 0.75rem;
    padding: 1rem 1.25rem;
}

.alert-success {
    background-color: #f0fdf4;
    color: #166534;
}

.alert-danger {
    background-color: #fef2f2;
    color: #991b1b;
}

/* Form validation */
.was-validated .form-control:valid,
.form-control.is-valid {
    border-color: var(--success-color);
}

.was-validated .form-control:invalid,
.form-control.is-invalid {
    border-color: #dc3545;
}

/* Responsive adjustments */
@media (max-width: 576px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .btn {
        padding: 0.5rem 1rem;
    }
    
    .pricing-price {
        font-size: 2rem;
    }
}

/* Print styles */
@media print {
    .navbar,
    .footer,
    .btn-back-to-top {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
    }
}

/* Focus visible for accessibility */
:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}