/* ── Base ─────────────────────────────────────────────────────────────────── */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ── Scroll-reveal (progressive enhancement — visible by default, animated via JS) ── */
@media (prefers-reduced-motion: no-preference) {
    .reveal-up,
    .reveal-left,
    .reveal-right {
        opacity: 1;
        transform: none;
        transition: opacity 0.7s ease, transform 0.7s ease;
    }

    .reveal-up.revealed,
    .reveal-left.revealed,
    .reveal-right.revealed {
        /* final state handled by JS */
    }

    /* Initial hidden state — applied by JS for progressive enhancement */
    .reveal-up.hidden-init,
    .reveal-left.hidden-init,
    .reveal-right.hidden-init {
        opacity: 0;
    }

    .reveal-up.hidden-init {
        transform: translateY(32px);
    }

    .reveal-left.hidden-init {
        transform: translateX(-32px);
    }

    .reveal-right.hidden-init {
        transform: translateX(32px);
    }

    .reveal-up.revealed {
        opacity: 1;
        transform: translateY(0);
    }

    .reveal-left.revealed {
        opacity: 1;
        transform: translateX(0);
    }

    .reveal-right.revealed {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ── Section shared ───────────────────────────────────────────────────────── */
.section-eyebrow {
    letter-spacing: 0.15em;
}

.section-title {
    font-weight: 500;
}

/* ── Hero headline animation (above-the-fold — no delay, no opacity gate) ── */
@media (prefers-reduced-motion: no-preference) {
    .hero-headline {
        animation: heroSlideUp 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
        animation-delay: 0.15s;
    }

    .hero-eyebrow {
        animation: heroFadeIn 0.7s ease both;
        animation-delay: 0.05s;
    }

    .hero-sub {
        animation: heroFadeIn 0.7s ease both;
        animation-delay: 0.3s;
    }

    .hero-cta {
        animation: heroFadeIn 0.7s ease both;
        animation-delay: 0.45s;
    }
}

@keyframes heroSlideUp {
    from {
        opacity: 0;
        transform: translateY(28px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* ── Card hover ───────────────────────────────────────────────────────────── */
.card-hover {
    will-change: transform, box-shadow;
}

/* ── Navbar scrolled state ─────────────────────────────────────────────────── */
.navbar-scrolled {
    background: rgba(255, 255, 255, 0.92) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(13, 148, 136, 0.08);
}

/* ── Mobile menu transition ───────────────────────────────────────────────── */
#mobile-menu {
    animation: menuSlide 0.25s ease both;
}

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