/* ===== Base & Typography ===== */
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

::selection {
    background-color: rgba(168, 213, 200, 0.3);
    color: #0A1628;
}

/* ===== Scroll Reveal ===== */
.reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(32px);
    }

    .reveal.revealed {
        opacity: 1;
        transform: none;
    }
}

/* ===== Navbar ===== */
#navbar {
    background: transparent;
}

#navbar.scrolled {
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(168, 213, 200, 0.1);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #A8D5C8;
    transition: width 0.3s ease;
}

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

/* ===== Mobile Menu ===== */
.mobile-nav-link {
    position: relative;
}

#mobileMenu.open {
    opacity: 1;
    pointer-events: all;
}

/* ===== Scroll Line Animation ===== */
.scroll-line {
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(1); }
    50% { opacity: 0.8; transform: scaleY(1.2); }
}

/* ===== Custom Cursor Glow (desktop only) ===== */
@media (hover: hover) {
    .group:hover img {
        will-change: transform;
    }
}

/* ===== Image Loading ===== */
img {
    max-width: 100%;
    height: auto;
}

/* ===== Smooth image transitions ===== */
img {
    transition: opacity 0.3s ease;
}

img[loading="lazy"] {
    opacity: 0;
}

img.loaded {
    opacity: 1;
}

/* ===== Focus Styles ===== */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #A8D5C8;
    outline-offset: 2px;
    border-radius: 2px;
}

/* ===== Mobile Menu Line Animation ===== */
.menu-line {
    transform-origin: center;
}

#menuBtn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(3px, 3px);
}

#menuBtn.active .menu-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

#menuBtn.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(3px, -3px);
    width: 1.25rem;
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    .reveal {
        opacity: 1 !important;
        transform: none !important;
    }
    .scroll-line {
        animation: none;
        opacity: 0.5;
    }
    .group:hover img {
        transform: none;
    }
}

/* ===== Mobile Adjustments ===== */
@media (max-width: 768px) {
    .font-serif {
        line-height: 1.15;
    }
}