/* Enhanced Styles for Shaiq Portfolio - Professional & Modern */

:root {
    /* Enhanced Color Palette */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;
    --primary-950: #172554;
    
    /* Enhanced Dark Theme */
    --dark-950: #0a0a0f;
    --dark-900: #0f172a;
    --dark-800: #1e293b;
    --dark-700: #334155;
    --dark-600: #475569;
    --dark-500: #64748b;
    
    /* Accent Colors */
    --accent-cyan: #06b6d4;
    --accent-emerald: #10b981;
    --accent-orange: #f97316;
    --accent-red: #ef4444;
    --accent-purple: #8b5cf6;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-800) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent-cyan) 0%, var(--primary-600) 100%);
    --gradient-dark: linear-gradient(135deg, var(--dark-900) 0%, var(--dark-800) 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.4), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
    
    /* Typography */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;
    
    color-scheme: dark;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--dark-900);
    color: #e2e8f0;
    line-height: 1.6;
}

/* Typography */
.font-heading {
    font-family: 'Space Grotesk', sans-serif;
}

/* Enhanced Button Styles */
.btn-primary {
    @apply px-8 py-3 text-white rounded-xl font-semibold transition-all duration-300 shadow-lg hover:shadow-xl transform hover:-translate-y-1 inline-flex items-center justify-center relative overflow-hidden;
    background: var(--gradient-primary);
    border: 1px solid var(--primary-500);
}

.btn-primary:hover {
    background: var(--gradient-accent);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px) scale(1.02);
}

.btn-primary:active {
    transform: translateY(0) scale(0.98);
}

.btn-secondary {
    @apply px-8 py-3 text-white rounded-xl font-semibold transition-all duration-300 shadow-lg hover:shadow-xl transform hover:-translate-y-1 inline-flex items-center justify-center relative overflow-hidden;
    background: var(--gradient-dark);
    border: 1px solid var(--dark-600);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--dark-700) 0%, var(--dark-600) 100%);
    border-color: var(--primary-500);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.2);
}

.btn-outline {
    @apply px-8 py-3 rounded-xl font-semibold transition-all duration-300 inline-flex items-center justify-center relative overflow-hidden;
    background: transparent;
    border: 2px solid var(--primary-500);
    color: var(--primary-400);
}

.btn-outline:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow-glow);
}

/* Glass Button Effect */
.btn-glass {
    @apply px-6 py-3 rounded-xl font-medium transition-all duration-300 inline-flex items-center justify-center backdrop-blur-md;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    color: var(--primary-300);
}

.btn-glass:hover {
    background: rgba(59, 130, 246, 0.2);
    border-color: var(--primary-500);
    color: white;
    transform: translateY(-1px);
}

/* Icon Buttons */
.btn-icon {
    @apply w-12 h-12 rounded-full flex items-center justify-center transition-all duration-300;
    background: var(--gradient-dark);
    border: 1px solid var(--dark-600);
}

.btn-icon:hover {
    background: var(--gradient-primary);
    transform: scale(1.1);
    box-shadow: var(--shadow-glow);
}

/* Enhanced Navigation */
.nav-link {
    @apply text-gray-300 hover:text-primary-400 transition-all duration-300 font-medium relative;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

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

.nav-link:hover {
    background: rgba(59, 130, 246, 0.1);
    transform: translateY(-2px);
}

.mobile-nav-link {
    @apply block px-4 py-3 text-gray-300 hover:text-white transition-all duration-300 rounded-xl font-medium;
    background: transparent;
    border: 1px solid transparent;
}

.mobile-nav-link:hover {
    background: var(--gradient-primary);
    border-color: var(--primary-500);
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.social-link {
    @apply text-gray-400 hover:text-primary-400 transition-all duration-300 relative;
    padding: 0.75rem;
    border-radius: var(--radius-full);
    background: var(--gradient-dark);
    border: 1px solid var(--dark-600);
}

.social-link:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-4px) scale(1.1);
    box-shadow: var(--shadow-glow);
}

/* Animations */
/* Enhanced Animations */
@keyframes float {
    0% { transform: translateY(0px) rotate(0deg); }
    25% { transform: translateY(-10px) rotate(1deg); }
    50% { transform: translateY(-20px) rotate(0deg); }
    75% { transform: translateY(-10px) rotate(-1deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

.animate-float {
    animation: float 8s ease-in-out infinite;
}

@keyframes spin-slow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.animate-spin-slow {
    animation: spin-slow linear infinite;
}

@keyframes pulse-glow {
    0%, 100% { 
        box-shadow: 0 0 20px rgba(59, 130, 246, 0.4),
                    0 0 40px rgba(59, 130, 246, 0.2),
                    0 0 60px rgba(59, 130, 246, 0.1);
    }
    50% { 
        box-shadow: 0 0 30px rgba(59, 130, 246, 0.6),
                    0 0 60px rgba(59, 130, 246, 0.4),
                    0 0 90px rgba(59, 130, 246, 0.2);
    }
}

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

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.animate-gradient {
    background-size: 200% 200%;
    animation: gradient-shift 6s ease infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.typing-animation::after {
    content: '|';
    animation: blink 1s infinite;
}

/* Glitch Effect */
.glitch {
    position: relative;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch::before {
    left: 2px;
    text-shadow: -2px 0 #ff00c1;
    clip: rect(44px, 450px, 56px, 0);
    animation: glitch-anim 5s infinite linear alternate-reverse;
}

.glitch::after {
    left: -2px;
    text-shadow: -2px 0 #00fff9, 2px 2px #ff00c1;
    clip: rect(44px, 450px, 56px, 0);
    animation: glitch-anim2 5s infinite linear alternate-reverse;
}

@keyframes glitch-anim {
    0% { clip: rect(42px, 9999px, 44px, 0); }
    5% { clip: rect(12px, 9999px, 59px, 0); }
    10% { clip: rect(48px, 9999px, 29px, 0); }
    15% { clip: rect(42px, 9999px, 73px, 0); }
    20% { clip: rect(63px, 9999px, 27px, 0); }
    25% { clip: rect(34px, 9999px, 55px, 0); }
    30% { clip: rect(86px, 9999px, 73px, 0); }
    35% { clip: rect(20px, 9999px, 20px, 0); }
    40% { clip: rect(26px, 9999px, 60px, 0); }
    45% { clip: rect(25px, 9999px, 66px, 0); }
    50% { clip: rect(57px, 9999px, 98px, 0); }
    55% { clip: rect(5px, 9999px, 46px, 0); }
    60% { clip: rect(82px, 9999px, 31px, 0); }
    65% { clip: rect(54px, 9999px, 27px, 0); }
    70% { clip: rect(28px, 9999px, 99px, 0); }
    75% { clip: rect(45px, 9999px, 69px, 0); }
    80% { clip: rect(23px, 9999px, 85px, 0); }
    85% { clip: rect(1px, 9999px, 83px, 0); }
    90% { clip: rect(72px, 9999px, 11px, 0); }
    95% { clip: rect(60px, 9999px, 89px, 0); }
    100% { clip: rect(52px, 9999px, 74px, 0); }
}

@keyframes glitch-anim2 {
    0% { clip: rect(65px, 9999px, 100px, 0); }
    5% { clip: rect(52px, 9999px, 74px, 0); }
    10% { clip: rect(79px, 9999px, 85px, 0); }
    15% { clip: rect(75px, 9999px, 5px, 0); }
    20% { clip: rect(67px, 9999px, 61px, 0); }
    25% { clip: rect(14px, 9999px, 79px, 0); }
    30% { clip: rect(1px, 9999px, 66px, 0); }
    35% { clip: rect(86px, 9999px, 30px, 0); }
    40% { clip: rect(23px, 9999px, 98px, 0); }
    45% { clip: rect(85px, 9999px, 72px, 0); }
    50% { clip: rect(71px, 9999px, 75px, 0); }
    55% { clip: rect(2px, 9999px, 48px, 0); }
    60% { clip: rect(30px, 9999px, 16px, 0); }
    65% { clip: rect(59px, 9999px, 50px, 0); }
    70% { clip: rect(41px, 9999px, 62px, 0); }
    75% { clip: rect(2px, 9999px, 82px, 0); }
    80% { clip: rect(47px, 9999px, 73px, 0); }
    85% { clip: rect(3px, 9999px, 27px, 0); }
    90% { clip: rect(26px, 9999px, 55px, 0); }
    95% { clip: rect(42px, 9999px, 97px, 0); }
    100% { clip: rect(38px, 9999px, 49px, 0); }
}

/* Enhanced Cards */
.card {
    @apply rounded-2xl p-6 shadow-lg hover:shadow-2xl transition-all duration-500 border relative overflow-hidden;
    background: var(--gradient-dark);
    border: 1px solid var(--dark-600);
    backdrop-filter: blur(10px);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    transition: left 0.5s ease;
}

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

.card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--primary-500);
    box-shadow: var(--shadow-2xl), 0 0 30px rgba(59, 130, 246, 0.2);
}

/* Glass Card Effect */
.card-glass {
    @apply rounded-2xl p-6 transition-all duration-500 border backdrop-blur-xl;
    background: rgba(30, 41, 59, 0.3);
    border: 1px solid rgba(59, 130, 246, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.card-glass:hover {
    background: rgba(30, 41, 59, 0.5);
    border-color: var(--primary-500);
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4), 0 0 25px rgba(59, 130, 246, 0.3);
}

/* Enhanced File Grid */
.file-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.file-card {
    @apply rounded-2xl overflow-hidden shadow-lg hover:shadow-2xl transition-all duration-500 border relative group;
    background: var(--gradient-dark);
    border: 1px solid var(--dark-600);
    backdrop-filter: blur(10px);
}

.file-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.15), transparent);
    transition: left 0.6s ease;
    z-index: 1;
}

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

.file-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--primary-500);
    box-shadow: var(--shadow-2xl), 0 0 30px rgba(59, 130, 246, 0.2);
}

/* Enhanced Portfolio Grid */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 2.5rem;
}

.portfolio-card {
    @apply rounded-2xl overflow-hidden shadow-lg hover:shadow-2xl transition-all duration-500 border relative group;
    background: var(--gradient-dark);
    border: 1px solid var(--dark-600);
    backdrop-filter: blur(10px);
}

.portfolio-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(6, 182, 212, 0.15), transparent);
    transition: left 0.7s ease;
    z-index: 1;
}

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

.portfolio-card:hover {
    transform: translateY(-12px) scale(1.03);
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-2xl), 0 0 40px rgba(6, 182, 212, 0.3);
}

/* Card Content Enhancements */
.portfolio-card .card-content {
    position: relative;
    z-index: 2;
}

.file-card .card-content {
    position: relative;
    z-index: 2;
}

/* Enhanced Skill Tags */
.skill-tag {
    @apply text-white px-4 py-2 rounded-full text-sm font-medium inline-flex items-center transition-all duration-300 relative overflow-hidden;
    background: var(--gradient-primary);
    border: 1px solid var(--primary-500);
    box-shadow: var(--shadow-sm);
}

.skill-tag:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-glow);
}

.skill-tag::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 ease;
}

.skill-tag:hover::before {
    left: 100%;
}

.skill-category {
    @apply rounded-2xl p-8 border transition-all duration-500 relative overflow-hidden group;
    background: var(--gradient-dark);
    border: 1px solid var(--dark-600);
    backdrop-filter: blur(10px);
}

.skill-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    transition: left 0.6s ease;
}

.skill-category:hover::before {
    left: 100%;
}

.skill-category:hover {
    transform: translateY(-6px);
    border-color: var(--primary-500);
    box-shadow: var(--shadow-xl), 0 0 25px rgba(59, 130, 246, 0.2);
}

/* Enhanced Forms */
.form-input {
    @apply w-full px-4 py-3 border rounded-xl font-medium transition-all duration-300 placeholder-gray-500;
    background: var(--gradient-dark);
    border: 1px solid var(--dark-600);
    color: white;
    backdrop-filter: blur(10px);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-500);
    background: rgba(30, 41, 59, 0.8);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1), var(--shadow-glow);
    transform: translateY(-2px);
}

.form-input:hover {
    border-color: var(--primary-600);
    background: rgba(30, 41, 59, 0.6);
}

.form-textarea {
    @apply w-full px-4 py-3 border rounded-xl font-medium transition-all duration-300 resize-y min-h-[120px] placeholder-gray-500;
    background: var(--gradient-dark);
    border: 1px solid var(--dark-600);
    color: white;
    backdrop-filter: blur(10px);
}

.form-textarea:focus {
    outline: none;
    border-color: var(--primary-500);
    background: rgba(30, 41, 59, 0.8);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1), var(--shadow-glow);
    transform: translateY(-2px);
}

.form-textarea:hover {
    border-color: var(--primary-600);
    background: rgba(30, 41, 59, 0.6);
}

/* Form Labels */
.form-label {
    @apply block text-sm font-semibold mb-2 text-gray-300;
}

/* Form Groups */
.form-group {
    @apply mb-6;
}

.form-group.error .form-input,
.form-group.error .form-textarea {
    border-color: var(--accent-red);
    background: rgba(239, 68, 68, 0.1);
}

.form-group.success .form-input,
.form-group.success .form-textarea {
    border-color: var(--accent-emerald);
    background: rgba(16, 185, 129, 0.1);
}

/* Enhanced Upload Area */
.upload-area {
    @apply border-2 border-dashed rounded-2xl p-12 text-center transition-all duration-500 cursor-pointer relative overflow-hidden;
    border-color: var(--dark-600);
    background: var(--gradient-dark);
    backdrop-filter: blur(10px);
}

.upload-area::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    transition: left 0.6s ease;
}

.upload-area:hover::before {
    left: 100%;
}

.upload-area:hover {
    border-color: var(--primary-500);
    background: rgba(59, 130, 246, 0.1);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl), 0 0 25px rgba(59, 130, 246, 0.2);
}

.upload-area.dragover {
    border-color: var(--accent-cyan);
    background: rgba(6, 182, 212, 0.15);
    transform: scale(1.02);
    box-shadow: var(--shadow-2xl), 0 0 30px rgba(6, 182, 212, 0.3);
}

.upload-area.dragover::before {
    background: linear-gradient(90deg, transparent, rgba(6, 182, 212, 0.2), transparent);
}

/* Enhanced Notifications */
.notification {
    @apply p-5 rounded-2xl shadow-xl border-l-4 mb-4 transition-all duration-500 relative overflow-hidden backdrop-blur-xl;
    animation: slideInRight 0.5s ease-out;
}

.notification::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.6s ease;
}

.notification:hover::before {
    left: 100%;
}

.notification.success {
    background: rgba(16, 185, 129, 0.15);
    border-left-color: var(--accent-emerald);
    color: #6ee7b7;
    box-shadow: 0 8px 32px rgba(16, 185, 129, 0.2);
}

.notification.error {
    background: rgba(239, 68, 68, 0.15);
    border-left-color: var(--accent-red);
    color: #fca5a5;
    box-shadow: 0 8px 32px rgba(239, 68, 68, 0.2);
}

.notification.warning {
    background: rgba(245, 158, 11, 0.15);
    border-left-color: var(--accent-orange);
    color: #fcd34d;
    box-shadow: 0 8px 32px rgba(245, 158, 11, 0.2);
}

.notification.info {
    background: rgba(59, 130, 246, 0.15);
    border-left-color: var(--primary-500);
    color: #93c5fd;
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.2);
}

@keyframes slideInRight {
    from {
        transform: translateX(100%) scale(0.8);
        opacity: 0;
    }
    to {
        transform: translateX(0) scale(1);
        opacity: 1;
    }
}

/* Loading States */
.loading {
    @apply relative overflow-hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.3), transparent);
    animation: loading-shimmer 2s infinite;
}

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

/* Search Results */
.search-result-item {
    @apply p-3 hover:bg-dark-700 cursor-pointer transition-colors border-b border-dark-600 last:border-b-0;
}

/* Enhanced Responsive Design */
@media (max-width: 1536px) {
    .file-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 1.5rem;
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: 2rem;
    }
}

@media (max-width: 1024px) {
    .file-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 1.25rem;
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        gap: 1.5rem;
    }
    
    .skill-category {
        padding: 1.5rem;
    }
}

@media (max-width: 768px) {
    .file-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .card, .card-glass {
        padding: 1.25rem;
    }
    
    .skill-category {
        padding: 1.25rem;
    }
    
    .btn-primary, .btn-secondary, .btn-outline {
        padding: 0.75rem 1.5rem;
        font-size: 0.875rem;
    }
    
    .upload-area {
        padding: 2rem 1rem;
    }
    
    .notification {
        margin: 0 1rem;
        padding: 1rem;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .card, .card-glass, .skill-category {
        padding: 1rem;
    }
    
    .btn-primary, .btn-secondary, .btn-outline {
        padding: 0.625rem 1.25rem;
        font-size: 0.8125rem;
    }
    
    .upload-area {
        padding: 1.5rem 0.75rem;
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .card, .portfolio-card, .file-card {
        border-width: 0.5px;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    .animate-float,
    .glitch::before,
    .glitch::after {
        animation: none;
    }
    
    .typing-animation::after {
        animation: none;
    }
}

/* Focus States */
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
}

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

::-webkit-scrollbar-track {
    background: var(--dark-800);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-600);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-500);
}

/* Performance Optimizations */
* {
    box-sizing: border-box;
}

/* Smooth scrolling with reduced motion support */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* GPU acceleration for animations */
.card, .portfolio-card, .file-card, .btn-primary, .btn-secondary, .btn-outline {
    will-change: transform;
    transform: translateZ(0);
}

/* Optimize text rendering */
body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Improve image rendering */
img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

/* Loading State Improvements */
.loading-shimmer {
    background: linear-gradient(90deg, 
        var(--dark-800) 25%, 
        var(--dark-700) 50%, 
        var(--dark-800) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Accessibility Improvements */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus indicators */
.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.btn-outline:focus-visible,
.form-input:focus-visible,
.form-textarea:focus-visible {
    outline: 2px solid var(--primary-400);
    outline-offset: 2px;
}

/* Dark mode optimizations */
@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .card, .portfolio-card, .file-card {
        border-width: 2px;
    }
    
    .btn-primary, .btn-secondary, .btn-outline {
        border-width: 2px;
    }
}

/* Print Styles */
@media print {
    .no-print, .language-switcher, #search-input, #mobile-menu-btn {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .card, .portfolio-card, .file-card {
        break-inside: avoid;
        margin-bottom: 1rem;
        border: 1px solid #ccc;
        background: white !important;
    }
    
    h1, h2, h3, h4, h5, h6 {
        break-after: avoid;
        color: black !important;
    }
    
    .btn-primary, .btn-secondary, .btn-outline {
        border: 1px solid #333;
        background: white !important;
        color: black !important;
    }
}