/* TravelX Modern Design System */

:root {
    --primary-50: #f0f9ff;
    --primary-100: #e0f2fe;
    --primary-500: #0ea5e9;
    --primary-600: #0284c7;
    --primary-700: #0369a1;
    --primary-900: #0c4a6e;
    
    --accent-50: #fff7ed;
    --accent-100: #ffedd5;
    --accent-500: #f97316;
    --accent-600: #ea580c;
    --accent-700: #c2410c;
    
    --neutral-50: #fafafa;
    --neutral-100: #f5f5f5;
    --neutral-800: #262626;
    --neutral-900: #171717;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

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

@keyframes pulseGlow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(255, 107, 53, 0.3);
    }
    50% {
        box-shadow: 0 0 30px rgba(255, 107, 53, 0.6);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Intersection Observer Animation Classes */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Hero section enhancements */
.hero-bg-pattern {
    background-image: 
        radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 215, 0, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 90%, rgba(255, 107, 53, 0.1) 0%, transparent 50%);
}

/* Custom button styles */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border-radius: 1rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(14, 165, 233, 0.3);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-secondary {
    background: linear-gradient(135deg, var(--accent-500) 0%, var(--accent-600) 100%);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border-radius: 1rem;
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(249, 115, 22, 0.3);
}

/* Modern form styles */
.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-input {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 2px solid #e5e7eb;
    border-radius: 1rem;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    background: #ffffff;
    font-family: 'Inter', sans-serif;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
    transform: translateY(-1px);
}

.form-input:valid {
    border-color: #10b981;
}

.form-input::placeholder {
    color: #9ca3af;
    font-weight: 400;
}

/* Card hover effects */
.card-hover {
    transition: all 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Progress indicators */
.progress-bar {
    height: 4px;
    background: linear-gradient(90deg, var(--travel-blue) 0%, var(--travel-orange) 100%);
    border-radius: 2px;
    transition: width 0.3s ease;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--travel-blue) 0%, var(--travel-orange) 100%);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #0052a3 0%, #e55a2b 100%);
}

/* Typography enhancements */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--accent-600) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Font loading optimization */
@font-face {
    font-family: 'Space Grotesk';
    font-display: swap;
}

@font-face {
    font-family: 'Inter';
    font-display: swap;
}

/* Mobile optimizations */
@media (max-width: 768px) {
    .hero-text {
        font-size: 2.5rem;
    }
    
    .section-padding {
        padding: 3rem 0;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

/* Loading states */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: loading-shimmer 1.5s infinite;
}

@keyframes loading-shimmer {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* Success states */
.success-message {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.success-message.show {
    opacity: 1;
    transform: translateY(0);
}

/* Error states */
.error-message {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.error-message.show {
    opacity: 1;
    transform: translateY(0);
}

/* Floating elements */
.float-animation {
    animation: float 6s ease-in-out infinite;
}

.float-animation:nth-child(2) {
    animation-delay: 2s;
}

.float-animation:nth-child(3) {
    animation-delay: 4s;
}

/* Stats counter animation */
.counter {
    font-weight: bold;
    color: var(--travel-gold);
}

/* Testimonial styles */
.testimonial-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    background: rgba(255, 255, 255, 1);
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

/* Interactive elements */
.interactive-hover {
    cursor: pointer;
    transition: all 0.3s ease;
}

.interactive-hover:hover {
    transform: scale(1.02);
}

/* Brand consistency */
.brand-accent {
    color: var(--accent-500);
}

.brand-primary {
    color: var(--primary-600);
}

.brand-neutral {
    color: var(--neutral-800);
}

/* Modern card styles */
.card-modern {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1.5rem;
    transition: all 0.3s ease;
}

.card-modern:hover {
    background: rgba(255, 255, 255, 0.95);
    transform: translateY(-5px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.1);
}

/* Glass effect */
.glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Accessibility improvements */
.focus-visible:focus {
    outline: 2px solid var(--travel-blue);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .no-print {
        display: none !important;
    }
    
    .print-friendly {
        background: white !important;
        color: black !important;
    }
}

/* Dark mode support (for future implementation) */
@media (prefers-color-scheme: dark) {
    .dark-mode-support {
        background-color: #1a1a1a;
        color: #ffffff;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .high-contrast {
        border: 2px solid currentColor;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Custom utility classes */
.shadow-xl-primary {
    box-shadow: 0 25px 50px -12px rgba(14, 165, 233, 0.25);
}

.shadow-xl-accent {
    box-shadow: 0 25px 50px -12px rgba(249, 115, 22, 0.25);
}

.border-gradient {
    border: 2px solid transparent;
    background: linear-gradient(white, white) padding-box,
                linear-gradient(135deg, var(--primary-600), var(--accent-600)) border-box;
}

/* Enhanced hover states */
.hover-lift {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

/* Modern scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--neutral-100);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-500) 0%, var(--accent-500) 100%);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--accent-600) 100%);
}

/* Form validation styles */
.form-input.invalid {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-input.valid {
    border-color: #10b981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Loading spinner */
.spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--travel-blue);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
    display: inline-block;
    margin-right: 8px;
}

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

/* Notification styles */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    color: white;
    font-weight: 500;
    transform: translateX(400px);
    transition: transform 0.3s ease;
}

.notification.show {
    transform: translateX(0);
}

.notification.success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.notification.error {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.notification.info {
    background: linear-gradient(135deg, var(--travel-blue) 0%, #0052a3 100%);
}