/* Base & Utilities */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #080e1a;
    color: #ffffff;
    overflow-x: hidden;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0f172a;
}
::-webkit-scrollbar-thumb {
    background: #14b8a6;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #2dd4bf;
}

/* Selection */
::selection {
    background: #14b8a6;
    color: #080e1a;
}

/* Reveal animations (progressive enhancement - only active with JS) */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }
}

.reveal {
    /* Default state: visible for no-JS users */
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal-hidden {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }
}

/* Navbar transitions */
#navbar.scrolled {
    background: rgba(8, 14, 26, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(20, 184, 166, 0.1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* Button hover glow */
.bg-teal-500:hover,
.bg-teal-400 {
    box-shadow: 0 0 30px rgba(20, 184, 166, 0.4);
}

/* Image hover zoom */
img {
    max-width: 100%;
    height: auto;
}

/* Smooth focus outlines */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #14b8a6;
    outline-offset: 4px;
    border-radius: 4px;
}

/* Mobile menu transitions */
#mobile-menu {
    animation: slideDown 0.3s ease forwards;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Geometric shape animations */
@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(45deg); }
    50% { transform: translateY(-20px) rotate(45deg); }
}

@keyframes floatSlow {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

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

/* Pulse ring for hero dot */
@keyframes pulseRing {
    0% { box-shadow: 0 0 0 0 rgba(45, 212, 191, 0.6); }
    70% { box-shadow: 0 0 0 10px rgba(45, 212, 191, 0); }
    100% { box-shadow: 0 0 0 0 rgba(45, 212, 191, 0); }
}

.animate-pulse-ring {
    animation: pulseRing 2s ease-in-out infinite;
}

/* Gradient text utility */
.gradient-text {
    background: linear-gradient(135deg, #2dd4bf, #14b8a6, #0d9488);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Card hover border glow */
.group:hover {
    border-color: rgba(20, 184, 166, 0.5) !important;
}

/* Prevent layout shift on images */
img {
    display: block;
}

/* Responsive typography adjustments */
@media (max-width: 640px) {
    .font-display {
        line-height: 1.1;
    }
}