/* ── Reset & Base ──────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
img { max-width: 100%; height: auto; display: block; }

/* ── Navbar ────────────────────────────────────────── */
.nav-fixed {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(250, 250, 247, 0.0);
    backdrop-filter: blur(0px);
    border-bottom: 1px solid transparent;
    transition: background 0.4s ease, backdrop-filter 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.nav-fixed.scrolled {
    background: rgba(250, 250, 247, 0.95);
    backdrop-filter: blur(12px);
    border-bottom-color: rgba(0,0,0,0.06);
    box-shadow: 0 1px 20px rgba(0,0,0,0.06);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: #B85C38;
    transition: width 0.3s ease;
}

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

/* ── Mobile Menu ───────────────────────────────────── */
.mobile-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(250, 250, 247, 0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
    animation: slideDown 0.3s ease forwards;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.mobile-menu.hidden {
    display: none;
}

.mobile-link {
    border-bottom: 1px solid rgba(0,0,0,0.04);
}

.mobile-link:last-child {
    border-bottom: none;
}

/* ── Hero ──────────────────────────────────────────── */
.hero-eyebrow {
    animation: fadeUp 0.8s ease both;
    animation-delay: 0.2s;
}

.hero-eyebrow ~ h1 {
    animation: fadeUp 0.8s ease both;
    animation-delay: 0.4s;
}

.hero-eyebrow ~ h1 ~ p {
    animation: fadeUp 0.8s ease both;
    animation-delay: 0.6s;
}

.hero-eyebrow ~ h1 ~ p ~ div {
    animation: fadeUp 0.8s ease both;
    animation-delay: 0.8s;
}

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

/* ── Section Eyebrow ───────────────────────────────── */
.section-eyebrow {
    animation: fadeIn 0.6s ease both;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ── Service Cards ─────────────────────────────────── */
.service-card {
    opacity: 1;
    transform: translateY(0);
    transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

.service-card:hover {
    transform: translateY(-4px);
}

/* ── Patient Cards ─────────────────────────────────── */
.patient-card {
    opacity: 1;
    transform: translateY(0);
    transition: transform 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.patient-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

/* ── Scroll Reveal (progressive enhancement) ───────── */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }

    .reveal.revealed {
        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; }
    .reveal-delay-6 { transition-delay: 0.6s; }
}

/* ── Reduced Motion ────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
    .reveal {
        opacity: 1;
        transform: none;
    }
}