/**
 * Modern UI/UX Styles - Sampol Polimer
 * Advanced CSS with glassmorphism, animations, and modern design patterns
 */

/* Import additional Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

:root {
    /* Modern Color Palette */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-900: #1e3a8a;
    
    --secondary-400: #a78bfa;
    --secondary-500: #8b5cf6;
    --secondary-600: #7c3aed;
    
    --accent-400: #fb7185;
    --accent-500: #f43f5e;
    
    --success-400: #4ade80;
    --success-500: #22c55e;
    
    --warning-400: #facc15;
    --warning-500: #eab308;
    
    /* Neutral Colors */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Modern Spacing System */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Modern Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    
    /* Modern Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-backdrop: blur(20px);
    
    /* Transitions */
    --transition-fast: 150ms ease-out;
    --transition-normal: 300ms ease-out;
    --transition-slow: 500ms ease-out;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --primary-50: #0f172a;
    --gray-50: #0f172a;
    --gray-100: #1e293b;
    --gray-200: #334155;
    --gray-300: #475569;
    --gray-800: #e2e8f0;
    --gray-900: #f1f5f9;
    
    --glass-bg: rgba(0, 0, 0, 0.3);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-feature-settings: 'cv11', 'ss01';
    font-variant-numeric: tabular-nums;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-attachment: fixed;
    color: var(--gray-800);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Modern Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.025em;
}

.heading-xl {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.05em;
}

.heading-lg {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
}

.heading-md {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
}

/* Modern Glassmorphism Components */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    -webkit-backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    transition: all var(--transition-normal);
}

.glass-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-2xl);
    border-color: rgba(255, 255, 255, 0.3);
}

/* Modern Buttons */
.btn-modern {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-weight: 600;
    font-size: 0.95rem;
    line-height: 1;
    border-radius: var(--radius-xl);
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    overflow: hidden;
    text-decoration: none;
}

.btn-modern::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.3) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
}

.btn-modern:hover::before {
    transform: translateX(100%);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, var(--primary-600), var(--primary-900));
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary-500), var(--secondary-600));
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    color: white;
}

/* Modern Navigation */
.modern-nav {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    -webkit-backdrop-filter: var(--glass-backdrop);
    border-bottom: 1px solid var(--glass-border);
    transition: all var(--transition-normal);
}

.modern-nav.scrolled {
    background: rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow-lg);
}

.nav-link-modern {
    position: relative;
    padding: var(--space-2) var(--space-4);
    color: white;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    overflow: hidden;
}

.nav-link-modern::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-400), var(--secondary-400));
    transform: translateX(-50%);
    transition: width var(--transition-normal);
}

.nav-link-modern:hover {
    color: var(--primary-100);
    background: rgba(255, 255, 255, 0.1);
}

.nav-link-modern:hover::before {
    width: 80%;
}

.nav-link-modern.active {
    color: var(--primary-100);
    background: rgba(255, 255, 255, 0.15);
}

.nav-link-modern.active::before {
    width: 80%;
}

/* Modern Hero Section */
.hero-modern {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.9), rgba(118, 75, 162, 0.9));
    overflow: hidden;
}

.hero-modern::before {
    content: '';
    position: absolute;
    inset: 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="%23ffffff" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="%23ffffff" opacity="0.1"/><circle cx="25" cy="75" r="0.5" fill="%23ffffff" opacity="0.1"/><circle cx="75" cy="25" r="0.5" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    animation: grain 20s linear infinite;
}

@keyframes grain {
    0%, 100% { transform: translate(0, 0); }
    10% { transform: translate(-5%, -10%); }
    20% { transform: translate(-15%, 5%); }
    30% { transform: translate(7%, -25%); }
    40% { transform: translate(-5%, 25%); }
    50% { transform: translate(-15%, 10%); }
    60% { transform: translate(15%, 0%); }
    70% { transform: translate(0%, 15%); }
    80% { transform: translate(3%, 35%); }
    90% { transform: translate(-10%, 10%); }
}

.hero-content {
    text-align: center;
    z-index: 10;
    color: white;
    max-width: 1200px;
    padding: var(--space-8);
}

.hero-title {
    background: linear-gradient(135deg, #ffffff, #e0e7ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-6);
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    opacity: 0.9;
    margin-bottom: var(--space-8);
    animation: fadeInUp 1s ease-out 0.3s both;
}

/* Modern Cards */
.modern-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.modern-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-400), var(--secondary-400), var(--accent-400));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.modern-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-2xl);
}

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

/* Product Cards Enhancement */
.product-card-modern {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.3);
    position: relative;
}

.product-card-modern::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

.product-card-modern:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-2xl);
}

.product-card-modern:hover::before {
    opacity: 1;
}

.product-image-container {
    position: relative;
    overflow: hidden;
    height: 200px;
}

.product-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card-modern:hover .product-image-container img {
    transform: scale(1.1);
}

.product-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, rgba(59, 130, 246, 0.8), rgba(139, 92, 246, 0.8));
    opacity: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity var(--transition-normal);
}

.product-card-modern:hover .product-overlay {
    opacity: 1;
}

/* Modern Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

/* Additional Medical Design Animations */
@keyframes slideInFromLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Medical Card Hover Effects */
.medical-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.medical-card::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 ease;
}

.medical-card:hover::before {
    left: 100%;
}

.medical-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Professional Glass Cards */
.professional-glass {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

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

.animate-fade-in-down {
    animation: fadeInDown 0.8s ease-out;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.8s ease-out;
}

.animate-fade-in-right {
    animation: fadeInRight 0.8s ease-out;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

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

/* Modern Scroll Indicator */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-400), var(--secondary-400), var(--accent-400));
    z-index: 1000;
    transition: width var(--transition-fast);
}

/* Dark Mode Toggle */
.theme-toggle {
    position: fixed;
    top: var(--space-4);
    right: var(--space-4);
    width: 60px;
    height: 30px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    cursor: pointer;
    transition: all var(--transition-normal);
    backdrop-filter: var(--glass-backdrop);
    z-index: 100;
}

.theme-toggle::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 26px;
    height: 26px;
    background: white;
    border-radius: 50%;
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .theme-toggle::before {
    transform: translateX(30px);
    background: var(--gray-800);
}

/* Modern Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        padding: var(--space-4);
    }
    
    .modern-card,
    .product-card-modern {
        margin: var(--space-4);
    }
    
    .glass-card:hover {
        transform: translateY(-4px) scale(1.01);
    }
}

/* Micro-interactions */
.interactive-element {
    transition: all var(--transition-fast);
    cursor: pointer;
}

.interactive-element:hover {
    transform: scale(1.05);
}

.interactive-element:active {
    transform: scale(0.98);
}

/* Modern Loading Animation */
.loading-dots {
    display: inline-flex;
    gap: var(--space-1);
}

.loading-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary-400);
    animation: loadingPulse 1.4s ease-in-out infinite both;
}

.loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes loadingPulse {
    0%, 80%, 100% {
        transform: scale(0);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Modern Form Elements */
.modern-input {
    width: 100%;
    padding: var(--space-4);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.modern-input:focus {
    outline: none;
    border-color: var(--primary-400);
    background: white;
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.modern-textarea {
    resize: vertical;
    min-height: 120px;
    font-family: inherit;
}

/* Performance Optimizations */
.will-change-transform {
    will-change: transform;
}

.will-change-opacity {
    will-change: opacity;
}

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