/* ── Reset & Base ── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
}

::selection {
    background: #E8654A;
    color: #111111;
}

/* ── Scroll Reveal (progressive enhancement) ── */
@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(32px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

/* ── Hero Animations (above the fold — always visible by default) ── */
.hero-anim {
    opacity: 1;
    transform: translateY(0);
    animation: heroFloat 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-anim:nth-child(1) { animation-delay: 0.1s; }
.hero-anim:nth-child(2) { animation-delay: 0.25s; }
.hero-anim:nth-child(3) { animation-delay: 0.4s; }
.hero-anim:nth-child(4) { animation-delay: 0.55s; }

@keyframes heroFloat {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

#navbar.scrolled {
    background: rgba(17, 17, 17, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* ── Scroll Indicator ── */
.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    animation: bob 2s ease-in-out infinite;
}

.scroll-mouse {
    width: 24px;
    height: 38px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-wheel {
    width: 3px;
    height: 8px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 2px;
    animation: scrollWheel 1.5s ease-in-out infinite;
}

@keyframes scrollWheel {
    0%, 100% { opacity: 1; transform: translateY(0); }
    50% { opacity: 0.3; transform: translateY(6px); }
}

@keyframes bob {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(6px); }
}

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

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

.mobile-link {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
}

#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

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

/* ── Menu Lines Animation ── */
#menu-toggle[aria-expanded="true"] .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

#menu-toggle[aria-expanded="true"] .menu-line:nth-child(3) {
    width: 24px;
    transform: rotate(-45deg) translate(5px, -5px);
}