/* Custom Fonts */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

code, .font-mono {
    font-family: 'JetBrains Mono', monospace;
}

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

/* Hero Gradient Background */
.hero-gradient {
    background: linear-gradient(180deg, #f8fafc 0%, #eef2ff 50%, #f8fafc 100%);
    position: relative;
    overflow: hidden;
}

.hero-gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(147, 51, 234, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(79, 70, 229, 0.05) 0%, transparent 60%);
    pointer-events: none;
}

/* Navigation */
.nav-link {
    color: #4b5563;
    font-weight: 500;
    transition: color 0.2s ease;
    position: relative;
}

.nav-link:hover {
    color: #4f46e5;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: width 0.3s ease;
}

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

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-weight: 600;
    border-radius: 0.75rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    background: white;
    color: #4f46e5;
    font-weight: 600;
    border-radius: 0.75rem;
    border: 2px solid #e5e7eb;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    border-color: #4f46e5;
    background: #eef2ff;
    transform: translateY(-2px);
}

/* Experience Card */
.experience-card {
    background: white;
    border-radius: 1.5rem;
    padding: 2rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    border: 1px solid #f3f4f6;
}

.experience-card:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    transform: translateY(-4px);
}

/* Portfolio Card */
.portfolio-card {
    background: white;
    border-radius: 1.5rem;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    border: 1px solid #f3f4f6;
}

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

/* Skill Category */
.skill-category {
    background: white;
    border-radius: 1.5rem;
    padding: 2rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    border: 1px solid #f3f4f6;
    transition: all 0.3s ease;
}

.skill-category:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.skill-item {
    padding: 0.5rem 1rem;
    background: #f9fafb;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    color: #374151;
    transition: all 0.2s ease;
}

.skill-item:hover {
    background: #eef2ff;
    color: #4f46e5;
}

/* Tech Tags */
.tech-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: #eef2ff;
    color: #4f46e5;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 9999px;
}

/* Stat Items */
.stat-item {
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

.stat-item:nth-child(1) { animation-delay: 0.1s; }
.stat-item:nth-child(2) { animation-delay: 0.2s; }
.stat-item:nth-child(3) { animation-delay: 0.3s; }
.stat-item:nth-child(4) { animation-delay: 0.4s; }

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse-slow {
    0%, 100% {
        opacity: 0.2;
        transform: scale(1);
    }
    50% {
        opacity: 0.3;
        transform: scale(1.1);
    }
}

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

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

.animate-fade-in-delayed {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.3s;
}

.animate-pulse-slow {
    animation: pulse-slow 4s ease-in-out infinite;
}

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

/* Scroll animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Form Inputs */
input:focus, textarea:focus {
    outline: none;
}

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

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #4f46e5;
}

/* Selection */
::selection {
    background: rgba(99, 102, 241, 0.3);
    color: #1e1b4b;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-gradient::before {
        background:
            radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
            radial-gradient(circle at 80% 20%, rgba(147, 51, 234, 0.15) 0%, transparent 50%);
    }

    .experience-card, .portfolio-card, .skill-category {
        padding: 1.5rem;
    }
}

/* Glass effect for cards */
.glass-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* Hover glow effect */
.glow-on-hover {
    transition: box-shadow 0.3s ease;
}

.glow-on-hover:hover {
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.3);
}

/* Loading animation */
.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 1.5s infinite;
}

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

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

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* Typing cursor effect */
.typing-cursor::after {
    content: '|';
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

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

/* Section padding consistency */
section {
    scroll-margin-top: 80px;
}

/* Card hover lift effect */
.lift-on-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.lift-on-hover:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* Image lazy load placeholder */
img {
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
}

/* Accessibility - focus visible */
:focus-visible {
    outline: 2px solid #4f46e5;
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .no-print {
        display: none !important;
    }

    body {
        background: white;
    }

    .portfolio-card, .experience-card {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}