/* Base styles and custom properties */
:root {
    --teal-400: #2dd4bf;
    --teal-500: #14b8a6;
    --teal-600: #0d9488;
    --slate-950: #020617;
    --slate-900: #0f172a;
    --slate-800: #1e293b;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Space Grotesk', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Scroll reveal base - content is visible by default */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

/* Only apply hidden state when JS adds the class */
.js .scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
}

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

/* Stagger children */
.js .scroll-reveal:nth-child(2) { transition-delay: 0.1s; }
.js .scroll-reveal:nth-child(3) { transition-delay: 0.2s; }
.js .scroll-reveal:nth-child(4) { transition-delay: 0.3s; }
.js .scroll-reveal:nth-child(5) { transition-delay: 0.4s; }
.js .scroll-reveal:nth-child(6) { transition-delay: 0.5s; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .scroll-reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* Navbar styles */
#navbar {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

#navbar.scrolled {
    background: rgba(2, 6, 23, 0.9);
    border-bottom: 1px solid rgba(45, 212, 191, 0.1);
}

/* Mobile menu */
#mobile-menu.active {
    opacity: 1;
    pointer-events: all;
}

.mobile-link {
    position: relative;
}

.mobile-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--teal-400);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.mobile-link:hover::after {
    width: 80%;
}

/* Mobile hamburger animation */
#mobile-menu-btn.active .mobile-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

#mobile-menu-btn.active .mobile-line:nth-child(2) {
    opacity: 0;
}

#mobile-menu-btn.active .mobile-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
    width: 5px;
    margin-left: 0;
}

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

@keyframes float-reverse {
    0%, 100% { transform: translateY(0) rotate(12deg); }
    50% { transform: translateY(20px) rotate(12deg); }
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.1; }
    50% { opacity: 0.2; }
}

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

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

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

::-webkit-scrollbar-track {
    background: var(--slate-950);
}

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

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

/* Selection color */
::selection {
    background: rgba(45, 212, 191, 0.3);
    color: white;
}