/* Base */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    overflow-x: hidden;
}

img {
    display: block;
    max-width: 100%;
}

/* Scroll Reveal - progressive enhancement, only active with JS */
.reveal-up {
    opacity: 1;
    transform: none;
    transition: opacity 0.7s ease, transform 0.7s ease;
}

@media (prefers-reduced-motion: no-preference) {
    .reveal-up {
        opacity: 0;
        transform: translateY(24px);
    }

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

/* Navbar scroll state */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: currentColor;
    transition: width 0.3s ease;
}

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

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

#mobile-menu.closed {
    opacity: 0;
    pointer-events: none;
}

.menu-line {
    display: block;
}

#menu-btn[aria-expanded="true"] .menu-line:nth-child(1) {
    transform: translateY(5px) rotate(45deg);
}

#menu-btn[aria-expanded="true"] .menu-line:nth-child(2) {
    opacity: 0;
}

#menu-btn[aria-expanded="true"] .menu-line:nth-child(3) {
    transform: translateY(-5px) rotate(-45deg);
    width: 1.5rem;
}

/* Subtle hover on cards */
.group:hover svg {
    transform: scale(1.05);
    transition: transform 0.3s ease;
}

/* Form focus styles */
input:focus,
textarea:focus {
    outline: none;
    box-shadow: 0 0 0 1px currentColor;
}

/* Selection */
::selection {
    background-color: rgba(201, 168, 76, 0.2);
    color: #1a2744;
}

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

::-webkit-scrollbar-track {
    background: #f0f3f9;
}

::-webkit-scrollbar-thumb {
    background: #bfcce1;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #9faed1;
}