:root {
    --tech-blue: #1e3a8a;
    --bg-primary: #ffffff;
    --text-primary: #0f172a;
    --font-sans: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Glass Panel Effect */
.glass-panel {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

/* Mobile Optimization for inputs */
input,
textarea,
button,
select,
a {
    -webkit-tap-highlight-color: transparent;
}

/* Animations */
/* Animations */
@keyframes fadeUp {
    from {
        opacity: 1;
    }

    to {
        opacity: 1;
    }
}

@keyframes zoomIn {
    from {
        opacity: 1;
        transform: scale(1);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideUp {
    from {
        opacity: 1;
    }

    to {
        opacity: 1;
    }
}

.animate-fade-up {
    animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-zoom-in {
    animation: zoomIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Staggered Animations */
.delay-100 {
    animation-delay: 100ms;
}

.delay-200 {
    animation-delay: 200ms;
}

.delay-300 {
    animation-delay: 300ms;
}

.delay-500 {
    animation-delay: 500ms;
}

.hover-lift {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s ease, border-color 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px -10px rgba(30, 58, 138, 0.12);
}

.card-hover {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-hover:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 30px -10px rgba(0, 0, 0, 0.05);
    border-color: rgba(59, 130, 246, 0.3);
}

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

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Premium Text Effects */
.text-gradient-premium {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 50%, #60a5fa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

.text-3d {
    text-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 0 #cbd5e1;
    /* Subtle physical depth */
}

.text-3d-glow {
    text-shadow: 0 0 20px rgba(59, 130, 246, 0.5);
}