/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

/* ── Navbar scroll state ── */
#navbar.scrolled {
    background: rgba(254, 252, 248, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0,0,0,0.06);
}

.nav-link { position: relative; }
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #C0603A;
    transition: width 0.3s ease;
}
.nav-link:hover::after { width: 100%; }

/* ── Mobile menu ── */
#mobileMenu.open {
    opacity: 1;
    pointer-events: all;
}
#mobileMenu.open .mobile-link {
    animation: fadeDown 0.4s ease forwards;
    opacity: 0;
}
#mobileMenu.open .mobile-link:nth-child(1) { animation-delay: 0.05s; }
#mobileMenu.open .mobile-link:nth-child(2) { animation-delay: 0.1s; }
#mobileMenu.open .mobile-link:nth-child(3) { animation-delay: 0.15s; }
#mobileMenu.open .mobile-link:nth-child(4) { animation-delay: 0.2s; }
#mobileMenu.open .mobile-link:nth-child(5) { animation-delay: 0.25s; }

.menu-line { transition: all 0.3s ease; }
#menuBtn.active .menu-line:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
#menuBtn.active .menu-line:nth-child(2) { opacity: 0; }
#menuBtn.active .menu-line:nth-child(3) { width: 1.5rem; transform: rotate(-45deg) translate(4px, -4px); }

/* ── Animations ── */
@keyframes fadeDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes floatDelayed {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

.animate-float { animation: float 4s ease-in-out infinite; }
.animate-float-delayed { animation: floatDelayed 3.5s ease-in-out infinite 0.5s; }

/* ── Reveal on scroll ── */
.reveal-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Selection ── */
::selection { background: #C0603A; color: white; }

/* ── Focus visible ── */
:focus-visible { outline: 2px solid #C0603A; outline-offset: 2px; }

/* ── Smooth image loading ── */
img { display: block; max-width: 100%; }