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

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

body {
    overflow-x: hidden;
}

/* Fade-in animations for hero */
.fade-in {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.1s;
}

.fade-in:nth-child(2) {
    animation-delay: 0.2s;
}

.fade-in:nth-child(3) {
    animation-delay: 0.3s;
}

.fade-in:nth-child(4) {
    animation-delay: 0.4s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll reveal animations — progressive enhancement */
.reveal {
    /* Default: visible, no animation */
}

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Navbar scroll state */
nav.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

nav.scrolled .nav-brand-text,
nav.scrolled .nav-brand-line,
nav.scrolled .nav-brand-sub {
    color: #1f2937;
}

nav.scrolled .nav-brand-line {
    background: rgba(31, 41, 55, 0.3);
}

nav.scrolled .nav-menu-btn .nav-bar {
    background: #1f2937;
}

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

#mobile-menu.open .mobile-link {
    animation: mobileLinkIn 0.4s ease forwards;
    opacity: 0;
}

#mobile-menu.open .mobile-link:nth-child(1) { animation-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { animation-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { animation-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { animation-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(5) { animation-delay: 0.25s; }
#mobile-menu.open .mobile-link:nth-child(6) { animation-delay: 0.3s; }

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

/* Mobile menu button animation */
#mobile-menu-btn[aria-expanded="true"] .nav-bar:nth-child(1) {
    transform: translateY(5px) rotate(45deg);
}

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

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

/* Selection color */
::selection {
    background: rgba(157, 23, 77, 0.15);
    color: #500724;
}

/* Smooth focus */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #d97706;
    outline-offset: 4px;
    border-radius: 4px;
}

/* Image loading */
img {
    display: block;
    max-width: 100%;
}