:root {
    --hk-green: #0b7a49;
    --hk-green-dark: #075b38;
    --hk-green-soft: #e9f7ef;
    --hk-navy: #0b1f33;
    --hk-ink: #142033;
    --hk-muted: #64748b;
    --hk-border: #e3e8ef;
    --hk-surface: #f6f8fb;
}

html { scroll-behavior: smooth; }
body { color: var(--hk-ink); background: #fff; font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--hk-green-dark); }
a:hover { color: var(--hk-green); }
.py-lg-6 { padding-top: 5rem !important; padding-bottom: 5rem !important; }
.site-header { z-index: 1030; }
.navbar-brand { font-size: 1.45rem; font-weight: 800; letter-spacing: -.04em; color: var(--hk-ink); }
.navbar-brand:hover { color: var(--hk-green-dark); }
.nav-link { color: #344054; font-weight: 550; }
.nav-link:hover { color: var(--hk-green); }
.btn-success { --bs-btn-bg: var(--hk-green); --bs-btn-border-color: var(--hk-green); --bs-btn-hover-bg: var(--hk-green-dark); --bs-btn-hover-border-color: var(--hk-green-dark); }
.btn-outline-success { --bs-btn-color: var(--hk-green); --bs-btn-border-color: var(--hk-green); --bs-btn-hover-bg: var(--hk-green); --bs-btn-hover-border-color: var(--hk-green); }

.hero-section {
    background: radial-gradient(circle at 80% 20%, #dff6e9 0, rgba(223,246,233,0) 32%), linear-gradient(180deg,#fbfdfc 0,#fff 100%);
    overflow: hidden;
}
.hero-section h1 { letter-spacing: -.055em; line-height: 1.03; }
.eyebrow, .section-kicker { color: var(--hk-green-dark); font-size: .82rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow { display: inline-flex; align-items: center; gap: .5rem; padding: .45rem .75rem; border-radius: 999px; background: var(--hk-green-soft); letter-spacing: .03em; text-transform: none; }
.hero-image-wrap { position: relative; padding: 1.25rem; }
.hero-image-wrap::before { content: ""; position: absolute; inset: 0; border-radius: 42% 58% 60% 40% / 42% 42% 58% 58%; background: #dcefe4; z-index: -1; transform: rotate(-3deg); }
.hero-image-wrap img { aspect-ratio: 1.55 / 1; object-fit: cover; object-position: center; }
.floating-card { position: absolute; display: flex; align-items: center; gap: .65rem; padding: .8rem 1rem; background: rgba(255,255,255,.95); border: 1px solid rgba(15,23,42,.08); border-radius: .9rem; box-shadow: 0 14px 40px rgba(15,23,42,.12); font-size: .88rem; font-weight: 700; }
.floating-card i { font-size: 1.2rem; }
.floating-card-top { top: 2rem; left: -.5rem; }
.floating-card-bottom { right: -.25rem; bottom: 2rem; }

.upload-section { background: var(--hk-surface); }
.upload-card { background: #fff; border: 1px solid var(--hk-border); border-radius: 1.5rem; box-shadow: 0 18px 55px rgba(15,23,42,.08); }
.upload-form .form-control { border-style: dashed; border-width: 2px; padding: 1rem; }
.section-intro { max-width: 740px; }
.feature-card { position: relative; padding: 2rem; border: 1px solid var(--hk-border); border-radius: 1.25rem; background: #fff; transition: transform .2s ease, box-shadow .2s ease; }
.feature-card:hover { transform: translateY(-4px); box-shadow: 0 18px 45px rgba(15,23,42,.09); }
.feature-icon { width: 3.2rem; height: 3.2rem; display: grid; place-items: center; border-radius: .9rem; color: var(--hk-green); background: var(--hk-green-soft); font-size: 1.45rem; margin-bottom: 1.4rem; }
.step-number { position: absolute; right: 1.5rem; top: 1.35rem; color: #c8d1dc; font-weight: 800; }
.content-band { background: linear-gradient(135deg,#eef8f2 0,#f8fbfa 100%); }
.info-card { border: 1px solid var(--hk-border); border-radius: 1.25rem; background: #fff; }
.info-card img { width: 100%; height: 220px; object-fit: cover; }
.cta-card { color: #fff; border-radius: 1.5rem; background: linear-gradient(135deg,var(--hk-green-dark),#0e8f55); box-shadow: 0 20px 55px rgba(11,122,73,.25); }

.site-footer { background: var(--hk-navy); }
.footer-brand { color: #fff; font-size: 1.3rem; font-weight: 800; }
.footer-links li { margin-bottom: .55rem; }
.footer-links a { color: rgba(255,255,255,.65); text-decoration: none; }
.footer-links a:hover { color: #fff; }

.page-hero { background: linear-gradient(180deg,#f3faf6,#fff); }
.content-narrow { max-width: 900px; }
.content-narrow h2 { margin-top: 2.4rem; font-size: 1.65rem; letter-spacing: -.025em; }
.content-narrow p, .content-narrow li { font-size: 1.05rem; line-height: 1.75; color: #475569; }
.callout { padding: 1.25rem 1.5rem; border-left: 4px solid var(--hk-green); background: var(--hk-green-soft); border-radius: 0 .75rem .75rem 0; font-size: 1.05rem; }

.analysis-header { background: #fbfcfd; }
.summary-card { height: 100%; display: flex; align-items: center; gap: .8rem; padding: 1rem; border: 1px solid var(--hk-border); border-radius: 1rem; background: #fff; }
.summary-card strong { display: block; font-size: 1.35rem; line-height: 1; }
.summary-card span:not(.summary-icon) { display: block; color: var(--hk-muted); font-size: .78rem; margin-top: .35rem; }
.summary-icon { width: 2.7rem; height: 2.7rem; display: grid; place-items: center; flex: 0 0 auto; border-radius: .75rem; font-size: 1.15rem; }
.analysis-panel { border: 1px solid var(--hk-border); border-radius: 1rem; background: #fff; overflow: hidden; box-shadow: 0 8px 30px rgba(15,23,42,.045); }
.analysis-table thead th { background: #f7f9fc; color: #526070; font-size: .78rem; text-transform: uppercase; letter-spacing: .035em; white-space: nowrap; border-bottom-width: 1px; }
.analysis-table td { padding-top: .9rem; padding-bottom: .9rem; }
.number-cell { font-variant-numeric: tabular-nums; }
.metric-card { height: 100%; padding: 1.25rem; border: 1px solid var(--hk-border); border-radius: 1rem; background: #fff; }
.metric-card span, .metric-card small { display: block; color: var(--hk-muted); }
.metric-card strong { display: block; margin: .35rem 0; font-size: 1.7rem; }
.metric-success { background: #f0fbf5; border-color: #c6ead6; }
.metric-danger { background: #fff5f5; border-color: #f3cccc; }
.metric-warning { background: #fffaf0; border-color: #f3dfb1; }
.observation-meta { min-width: 235px; padding: .85rem; border-radius: .75rem; background: #f7f9fc; color: #526070; }
.observation-item { border-left: 4px solid transparent; }
.breadcrumb a { text-decoration: none; }
.accordion-button:not(.collapsed) { color: var(--hk-green-dark); background: var(--hk-green-soft); }
.accordion-button:focus { box-shadow: 0 0 0 .25rem rgba(11,122,73,.15); }

@media (max-width: 991.98px) {
    .py-lg-6 { padding-top: 3.5rem !important; padding-bottom: 3.5rem !important; }
    .floating-card { display: none; }
    .navbar-collapse { padding: 1rem 0; }
}

@media (max-width: 575.98px) {
    .hero-section h1 { font-size: 2.55rem; }
    .feature-card, .upload-card { padding: 1.4rem !important; }
    .summary-grid .col-6 { width: 100%; }
}