/* ===== Base & Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { margin: 0; overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; margin: 0; padding: 0; }

/* ===== Typography ===== */
h1, h2, h3, h4 { font-weight: 400; line-height: 1.2; }

/* ===== Navbar scroll state ===== */
#navbar.scrolled {
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 30px rgba(0, 0, 0, 0.3);
}

/* ===== Fade-in on scroll (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        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);
    }
    .reveal.visible {
        opacity: 1;
        transform: translateY(0);
    }
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
    .reveal-delay-5 { transition-delay: 0.5s; }
}

/* ===== Service card shimmer on hover ===== */
.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    opacity: 0;
    transition: opacity 0.4s ease;
    background: linear-gradient(135deg, rgba(232,99,58,0.05) 0%, transparent 60%);
    pointer-events: none;
}
.service-card { position: relative; overflow: hidden; }
.service-card:hover::before { opacity: 1; }

/* ===== Button ripple effect ===== */
button, a[role="button"], .btn { position: relative; overflow: hidden; }
button::after, a[role="button"]::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), rgba(255,255,255,0.2) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}
button:hover::after, a[role="button"]:hover::after { opacity: 1; }

/* ===== Selection color ===== */
::selection { background: rgba(232, 99, 58, 0.3); color: #fff; }
</style>