/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { min-height: 100vh; }
img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }

/* ── Typography ── */
.section-label {
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: #304d23;
}

.section-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 700;
    line-height: 1.1;
    color: #1f3318;
}

.body-text {
    font-size: 1.0625rem;
    line-height: 1.75;
    color: #3d612c;
}

/* ── Buttons ── */
.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

/* ── Inputs ── */
.input-field {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 0.75rem;
    padding: 0.875rem 1rem;
    color: #faf9f6;
    font-size: 0.9375rem;
    transition: all 0.2s ease;
    outline: none;
    width: 100%;
}

.input-field::placeholder { color: rgba(227,237,219,0.4); }
.input-field:focus {
    border-color: rgba(164,194,138,0.6);
    background: rgba(255,255,255,0.1);
    box-shadow: 0 0 0 3px rgba(164,194,138,0.15);
}

.input-field option { background: #1f3318; color: #faf9f6; }

/* ── Navigation ── */
.nav-link { position: relative; }
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #74a058;
    transition: width 0.2s ease;
}
.nav-link:hover::after { width: 100%; }

/* ── Hero ── */
.hero { position: relative; }
.hero-bg { position: absolute; inset: 0; }
.hero-img { width: 100%; height: 100%; object-fit: cover; }
.hero-overlay {
    background: linear-gradient(
        135deg,
        rgba(15,26,10,0.82) 0%,
        rgba(31,51,24,0.75) 50%,
        rgba(48,77,35,0.70) 100%
    );
}

/* ── Scroll Indicator ── */
.scroll-indicator {
    border-color: rgba(250,249,246,0.3);
}
.scroll-dot {
    background: rgba(250,249,246,0.6);
}

/* ── Reveal Animations (progressive enhancement) ── */
.reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
    }
    .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; }
}

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

/* ── Approach Numbers ── */
.approach-number {
    font-family: 'Playfair Display', Georgia, serif;
    line-height: 1;
}

/* ── Mobile Menu ── */
.mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}
.mobile-menu.open {
    max-height: 500px;
}
.mobile-nav-link {
    display: block;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(160,194,138,0.15);
}
.mobile-nav-link:last-child { border-bottom: none; }

/* ── Success Message ── */
.success-message {
    animation: fadeIn 0.4s ease;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ── */
@media (max-width: 767px) {
    .hero-title { font-size: clamp(2.25rem, 10vw, 3.5rem); }
    .hero-subtitle { font-size: 1rem; }
}