/* ── Base & Typography ─────────────────────────────────────────── */
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

::selection {
    background-color: #059669;
    color: #fefdf8;
}

/* ── Scroll Reveal (progressive enhancement) ──────────────────── */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(32px);
        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.revealed {
        opacity: 1;
        transform: translateY(0);
    }

    /* Stagger children */
    .reveal-stagger > * {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    .reveal-stagger.revealed > *:nth-child(1) { transition-delay: 0.05s; }
    .reveal-stagger.revealed > *:nth-child(2) { transition-delay: 0.12s; }
    .reveal-stagger.revealed > *:nth-child(3) { transition-delay: 0.19s; }
    .reveal-stagger.revealed > *:nth-child(4) { transition-delay: 0.26s; }
    .reveal-stagger.revealed > *:nth-child(5) { transition-delay: 0.33s; }
    .reveal-stagger.revealed > *:nth-child(6) { transition-delay: 0.40s; }

    .reveal-stagger.revealed > * {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Default visible state for reduced-motion or no-JS */
@media (prefers-reduced-motion: reduce) {
    .reveal,
    .reveal-stagger > * {
        opacity: 1;
        transform: none;
    }
}

/* ── Hero Entrance (above fold — always visible) ──────────────── */
@keyframes heroFadeUp {
    from {
        opacity: 0;
        transform: translateY(28px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    animation: heroFadeUp 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
    animation-delay: 0.1s;
    opacity: 0;
}

.hero-title {
    animation: heroFadeUp 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
    animation-delay: 0.25s;
    opacity: 0;
}

.hero-description {
    animation: heroFadeUp 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
    animation-delay: 0.4s;
    opacity: 0;
}

.hero-cta {
    animation: heroFadeUp 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
    animation-delay: 0.55s;
    opacity: 0;
}

/* ── Navbar ───────────────────────────────────────────────────── */
#navbar {
    background: transparent;
    transition: background-color 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}

#navbar.scrolled {
    background-color: rgba(254, 253, 248, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(15, 23, 42, 0.06);
}

#navbar.scrolled .nav-link {
    color: #334155;
}

#navbar.scrolled .nav-link:hover {
    color: #059669;
}

#navbar.scrolled .font-serif {
    color: #0F172A;
}

/* ── Mobile Menu ──────────────────────────────────────────────── */
#mobile-menu {
    /* Default visible state for no-JS */
    opacity: 1;
    pointer-events: auto;
    transform: none;
}

#mobile-menu.open {
    opacity: 1;
    pointer-events: auto;
    transform: none;
}

/* ── Form Styles ──────────────────────────────────────────────── */
input:focus,
select:focus,
textarea:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.1);
}

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='%2394a3b8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* ── Image Hover ──────────────────────────────────────────────── */
img {
    display: block;
    max-width: 100%;
}

/* ── Utility ──────────────────────────────────────────────────── */
@media (max-width: 639px) {
    .font-serif {
        line-height: 1.15;
    }
}