/* ===== Custom Styles for D Louise Mebane Ph. D. ===== */

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Base font smoothing */
body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Navbar ===== */
#navbar.scrolled {
    box-shadow: 0 1px 20px rgba(13, 148, 136, 0.08);
}

/* ===== Hero Animations ===== */
.hero-eyebrow {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.2s;
}

.hero-headline {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.4s;
}

.hero-sub {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.6s;
}

.hero-ctas {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.8s;
}

.hero-stats {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 1s;
}

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

/* ===== Section Labels ===== */
.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: #0d9488;
}

.section-label::before {
    content: '';
    display: block;
    width: 24px;
    height: 2px;
    background: #0d9488;
}

.section-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 700;
    line-height: 1.15;
    color: #0f172a;
}

.section-desc {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #475569;
}

/* ===== Service Cards ===== */
.service-card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.service-card.revealed {
    opacity: 1;
    transform: translateY(0);
}

.service-card:nth-child(2) { transition-delay: 0.15s; }
.service-card:nth-child(3) { transition-delay: 0.3s; }

/* ===== Approach Steps ===== */
.approach-step {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.approach-step.revealed {
    opacity: 1;
    transform: translateY(0);
}

.approach-step:nth-child(2) { transition-delay: 0.15s; }
.approach-step:nth-child(3) { transition-delay: 0.3s; }

/* ===== Mobile Menu ===== */
#mobile-menu {
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-link {
    display: block;
    padding: 0.5rem 0;
    border-bottom: 1px solid #f0fdfa;
}

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

/* ===== Form Styles ===== */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' 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 12px center;
    padding-right: 40px;
}

/* ===== Utility ===== */
@media (prefers-reduced-motion: no-preference) {
    .service-card,
    .approach-step {
        /* Animated via JS intersection observer */
    }
}

@media (prefers-reduced-motion: reduce) {
    .hero-eyebrow,
    .hero-headline,
    .hero-sub,
    .hero-ctas,
    .hero-stats {
        animation: none;
        opacity: 1;
        transform: none;
    }

    .service-card,
    .approach-step {
        opacity: 1;
        transform: none;
    }

    html {
        scroll-behavior: auto;
    }
}

/* ===== Responsive tweaks ===== */
@media (max-width: 640px) {
    .section-title {
        font-size: 1.875rem;
    }

    #contact-form .grid {
        grid-template-columns: 1fr;
    }
}