:root {
    --color-charcoal-900: #0d0d0d;
    --color-charcoal-800: #141414;
    --color-charcoal-700: #1c1c1c;
    --color-charcoal-600: #2a2a2a;
    --color-coral: #ff6b55;
    --color-coral-light: #ff7f6a;
    --color-gold: #d4a843;
    --color-gold-light: #e8c46a;
}

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

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: var(--color-charcoal-900);
    color: #e5e5e5;
    overflow-x: hidden;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--color-charcoal-900);
}
::-webkit-scrollbar-thumb {
    background: var(--color-charcoal-600);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-coral);
}

/* Selection */
::selection {
    background: var(--color-coral);
    color: white;
}

/* Navbar scroll state */
nav.scrolled {
    background: rgba(13, 13, 13, 0.95) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

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

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

/* Hamburger animation */
.menu-line {
    transition: all 0.3s ease;
}

#menu-btn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
#menu-btn.active .menu-line:nth-child(2) {
    opacity: 0;
}
#menu-btn.active .menu-line:nth-child(3) {
    width: 24px;
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Scroll reveal animations - progressive enhancement */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s ease, transform 0.8s ease;
    }
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
}

/* Card hover glow effects */
.group:hover .group-hover\\:bg-coral-500\\/25 {
    background-color: rgba(255, 107, 85, 0.2);
}
.group:hover .group-hover\\:bg-gold-500\\/25 {
    background-color: rgba(232, 196, 106, 0.2);
}

/* Select styling */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%239ca3af' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

/* Focus visible */
:focus-visible {
    outline: 2px solid var(--color-coral);
    outline-offset: 2px;
}

/* Button press effect */
button, a {
    -webkit-tap-highlight-color: transparent;
}

button:active, a:active {
    transform: scale(0.98);
}

/* Prevent layout shift on images */
img {
    max-width: 100%;
    height: auto;
}

/* Smooth image loading */
img {
    transition: opacity 0.3s ease;
}
img[loading="lazy"] {
    opacity: 0;
}
img.loaded {
    opacity: 1;
}