/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; -webkit-font-smoothing: antialiased; }

/* ── Animations ── */
@keyframes spin-slow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
@keyframes slideUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-spin-slow { animation: spin-slow 20s linear infinite; }
.animate-float { animation: float 3s ease-in-out infinite; }

/* ── Scroll Reveal ── */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Service Cards ── */
.service-card {
    transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease;
}
.service-card:hover {
    transform: translateY(-4px);
}

/* ── Mobile Menu ── */
.mobile-link {
    animation: slideUp 0.4s ease forwards;
    opacity: 0;
}
.mobile-link:nth-child(1) { animation-delay: 0.05s; }
.mobile-link:nth-child(2) { animation-delay: 0.1s; }
.mobile-link:nth-child(3) { animation-delay: 0.15s; }
.mobile-link:nth-child(4) { animation-delay: 0.2s; }

/* ── Nav active state ── */
nav a.active { color: #E85D4A; }

/* ── Custom scrollbar ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #1A1A1A; }
::-webkit-scrollbar-thumb { background: #2D2D2D; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #E85D4A; }

/* ── Selection ── */
::selection { background: #E85D4A; color: white; }

/* ── Mobile menu open ── */
body.menu-open { overflow: hidden; }

/* ── Menu lines animation ── */
body.menu-open .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
body.menu-open .menu-line:nth-child(2) {
    opacity: 0;
}
body.menu-open .menu-line:nth-child(3) {
    width: 6px;
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ── Form select arrow ── */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23ffffff40' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}