/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; }

/* ── Typography tokens ── */
.label {
    display: block;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: #0d9488;
}

.heading-xl {
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    font-weight: 400;
    line-height: 1.1;
    color: #0f172a;
    letter-spacing: -0.02em;
}

/* ── Nav ── */
#nav {
    background: rgba(248, 250, 252, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}
#nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 1px 0 rgba(226, 232, 240, 0.8);
}

/* ── Mobile menu ── */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

/* ── Hero animations ── */
.hero-tag {
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.2s;
    opacity: 0;
}
.hero-headline {
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.4s;
    opacity: 0;
}
.hero-sub {
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.6s;
    opacity: 0;
}
.hero-cta {
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.8s;
    opacity: 0;
}
.hero-stats {
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 1s;
    opacity: 0;
}
.hero-img {
    animation: fadeUp 1s ease forwards;
    animation-delay: 0.6s;
    opacity: 0;
}
.hero-card {
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 1.2s;
    opacity: 0;
}

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

/* ── Scroll reveal ── */
.scroll-reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.scroll-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

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

/* ── Selection ── */
::selection {
    background: #ccfbf1;
    color: #134e4a;
}

/* ── Focus visible ── */
:focus-visible {
    outline: 2px solid #14b8a6;
    outline-offset: 2px;
}

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