/* 
EDITING INSTRUCTIONS:
- Change colors by modifying CSS variables in :root
- Font changes can be made in the :root section
- Spacing and sizing can be adjusted via CSS variables
- Each section has its own CSS file for specific styling
*/

/* CSS Variables for Easy Customization */
:root {
    /* Colors - Edit these to change the entire theme */
    --primary-color: hsl(244, 68%, 31%);
    --primary-light: hsl(231, 48%, 48%);
    --primary-dark: hsl(214, 100%, 33%);
    --accent-color: hsl(187, 100%, 42%);
    --accent-light: hsl(187, 69%, 52%);
    --secondary-color: hsl(141, 100%, 45%);
    --secondary-light: hsl(141, 73%, 67%);
    
    /* Neutral Colors */
    --neutral-50: hsl(210, 40%, 98%);
    --neutral-100: hsl(210, 40%, 96%);
    --neutral-200: hsl(214, 32%, 91%);
    --neutral-300: hsl(213, 27%, 84%);
    --neutral-400: hsl(215, 20%, 65%);
    --neutral-500: hsl(215, 16%, 47%);
    --neutral-600: hsl(215, 19%, 35%);
    --neutral-700: hsl(215, 25%, 27%);
    --neutral-800: hsl(217, 33%, 17%);
    --neutral-900: hsl(222, 84%, 5%);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    /* Border Radius */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;
    --border-radius-full: 9999px;
    
    /* Shadows */
    --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);
    
    /* Transitions */
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
    
    /* Breakpoints */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    color: var(--neutral-800);
    background-color: white;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 640px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    color: var(--neutral-900);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--neutral-600);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: var(--border-radius-full);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    line-height: 1.5;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--neutral-900);
    margin-bottom: var(--spacing-lg);
}

.section-description {
    font-size: 1.25rem;
    color: var(--neutral-600);
    max-width: 768px;
    margin: 0 auto;
}

@media (min-width: 640px) {
    .section-title {
        font-size: 3rem;
    }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid var(--neutral-200);
    transition: all var(--transition-normal);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-desktop {
    display: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--neutral-700);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-normal);
}

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

.nav-cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-full);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-normal);
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

@media (min-width: 768px) {
    .nav-desktop {
        display: block;
    }
    
    .nav-container {
        padding: 0 var(--spacing-lg);
    }
}

@media (min-width: 1024px) {
    .nav-container {
        padding: 0 var(--spacing-xl);
    }
}

/* Mobile Menu */
.mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm);
    background: none;
    border: none;
    color: var(--neutral-700);
    cursor: pointer;
}

.menu-icon {
    width: 1.5rem;
    height: 1.5rem;
}

.mobile-menu {
    background: white;
    border-top: 1px solid var(--neutral-200);
    transition: all var(--transition-normal);
}

.mobile-menu.hidden {
    display: none;
}

.mobile-menu-content {
    padding: var(--spacing-sm) 0 var(--spacing-md);
}

.mobile-nav-link {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--neutral-700);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-normal);
}

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

@media (min-width: 768px) {
    .nav-mobile-button {
        display: none;
    }
}

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

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

@keyframes slideInFromLeft {
    from {
        opacity: 0;
        transform: translateX(-100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 0.6;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

.animate-slide-in-left {
    animation: slideInFromLeft 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.animate-slide-in-right {
    animation: slideInFromRight 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.animate-scale-in {
    animation: scaleIn 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* Navigation Transition Overlay */
.nav-transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 50%, var(--accent-color) 100%);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-transition-overlay.active {
    opacity: 1;
    visibility: visible;
}

.nav-transition-content {
    text-align: center;
    color: white;
}

.nav-transition-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

.nav-transition-text {
    font-size: 1.125rem;
    font-weight: var(--font-weight-medium);
    opacity: 0.9;
}

/* Smooth page transitions */
.page-section {
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.page-section.transitioning {
    opacity: 0;
    transform: translateY(20px);
}

/* Ripple effect for buttons */
.btn {
    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 0.3s ease, height 0.3s ease;
}

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

/* Enhanced hover effects */
.nav-link {
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover::before {
    width: 100%;
}

.nav-cta {
    position: relative;
    overflow: hidden;
}

.nav-cta::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 0.5s;
}

.nav-cta:hover::before {
    left: 100%;
}

/* Ripple animation */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: rippleEffect 0.6s linear;
    pointer-events: none;
}

@keyframes rippleEffect {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Smooth transitions for all interactive elements */
* {
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Prevent transition on page load */
.preload * {
    transition: none !important;
}

/* Loading states */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    transform: translate(-50%, -50%);
}

/* Enhanced card animations */
.card-hover {
    will-change: transform, box-shadow;
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

.card-hover:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* Staggered animations */
.animate-stagger > * {
    animation-delay: calc(var(--stagger-delay, 0.1s) * var(--stagger-index, 0));
}

/* Micro-interactions */
.micro-bounce {
    animation: microBounce 0.3s ease-out;
}

@keyframes microBounce {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Smooth focus states */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    transition: outline-offset 0.2s ease;
}

*:focus:not(:focus-visible) {
    outline: none;
}

/* Performance optimizations */
.hero-section,
.floating-element {
    will-change: transform;
    transform: translateZ(0);
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    *,
    ::before,
    ::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .animate-float {
        animation: none;
    }
    
    .nav-transition-overlay {
        display: none !important;
    }
}

/* Card Hover Effect */
.card-hover {
    transition: all var(--transition-normal);
}

.card-hover:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

/* Utility Classes */
.hidden {
    display: none;
}

.text-center {
    text-align: center;
}

.grid {
    display: grid;
}

.flex {
    display: flex;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.space-between {
    justify-content: space-between;
}

.gap-4 {
    gap: var(--spacing-md);
}

.gap-6 {
    gap: var(--spacing-lg);
}

.gap-8 {
    gap: var(--spacing-xl);
}

.mb-4 {
    margin-bottom: var(--spacing-md);
}

.mb-6 {
    margin-bottom: var(--spacing-lg);
}

.mb-8 {
    margin-bottom: var(--spacing-xl);
}