:root {
  --green:     #1B3022;
  --gray:      #8E9191;
  --taupe:     #B5A692;
  --silver:    #C0C0C0;
  --off-white: #F9F9F9;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--off-white);
  color: var(--green);
  line-height: 1.6;
  font-size: 16px;
}

/* ── Top Nav ────────────────────────────────────────────────── */
.topnav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--green);
  border-bottom: 2px solid var(--taupe);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 2rem;
}

.topnav-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
}

.topnav-brand img {
  height: 22px;
  width: auto;
  opacity: 0.85;
  filter: brightness(0) invert(1);
}

.topnav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.topnav-contact {
  color: var(--silver);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.15s;
}
.topnav-contact:hover { color: #fff; }

.topnav-portal {
  display: inline-block;
  background: var(--taupe);
  color: var(--green);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.45rem 1.1rem;
  border-radius: 4px;
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: filter 0.15s;
}
.topnav-portal:hover { filter: brightness(1.08); }

@media (max-width: 480px) {
  .topnav-brand span { display: none; }
  .topnav-contact { display: none; }
}

/* ── Hero ───────────────────────────────────────────────────── */
.hero {
  background: var(--green);
  color: #fff;
  padding: 5rem 2rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 60% 30%, rgba(181,166,146,0.12) 0%, transparent 65%);
  pointer-events: none;
}

.hero img.logo {
  height: 80px;
  width: auto;
  margin-bottom: 2rem;
  display: block;
  margin-left: auto;
  margin-right: auto;
  filter: brightness(0) invert(1);
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  max-width: 760px;
  margin: 0 auto 1rem;
}

.hero .sub {
  font-size: 1.2rem;
  color: var(--silver);
  max-width: 580px;
  margin: 0 auto 2.5rem;
}

.btn-hero {
  display: inline-block;
  background: var(--taupe);
  color: var(--green);
  font-weight: 700;
  font-size: 1rem;
  padding: 0.9rem 2.2rem;
  border-radius: 4px;
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: filter 0.15s;
}
.btn-hero:hover { filter: brightness(1.08); }

/* ── Sections ───────────────────────────────────────────────── */
section {
  max-width: 1080px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

section h2 {
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--green);
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

section .section-sub {
  font-size: 1rem;
  color: var(--gray);
  margin-bottom: 2.5rem;
}

.divider {
  border: none;
  border-top: 1px solid var(--silver);
}

/* ── Three-column cards ─────────────────────────────────────── */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.card {
  background: #fff;
  border: 1px solid var(--silver);
  border-radius: 6px;
  padding: 2rem;
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--green);
  margin-bottom: 0.6rem;
}

.card p {
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.6;
}

/* ── Comparison table ───────────────────────────────────────── */
.alt-bg {
  background: #fff;
  border-top: 1px solid var(--silver);
  border-bottom: 1px solid var(--silver);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 2rem;
  font-size: 0.95rem;
}

.compare-table thead th {
  background: var(--green);
  color: #fff;
  padding: 0.9rem 1.2rem;
  text-align: left;
  font-weight: 600;
}

.compare-table tbody td {
  padding: 0.8rem 1.2rem;
  border-bottom: 1px solid var(--silver);
  color: var(--green);
  vertical-align: top;
}

.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table tbody tr:nth-child(even) td { background: var(--off-white); }

.compare-table .col-msp { color: var(--gray); }

/* ── Contact form ───────────────────────────────────────────── */
#contact {
  max-width: 680px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  margin-bottom: 1.2rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--green);
  margin-bottom: 0.35rem;
  letter-spacing: 0.02em;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--silver);
  border-radius: 4px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--green);
  background: #fff;
  transition: border-color 0.15s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--taupe);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.btn-submit {
  background: var(--taupe);
  color: var(--green);
  font-weight: 700;
  font-size: 1rem;
  padding: 0.85rem 2.4rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: filter 0.15s;
}
.btn-submit:hover { filter: brightness(1.08); }

.alert-success {
  background: #eaf4ec;
  border: 1px solid #a8d5b0;
  border-radius: 4px;
  padding: 0.9rem 1.2rem;
  color: #1a5e2a;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.alert-error {
  background: #fdf0ef;
  border: 1px solid #e0a0a0;
  border-radius: 4px;
  padding: 0.9rem 1.2rem;
  color: #9b2226;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

/* ── Client portal link ─────────────────────────────────────── */
.portal-banner {
  text-align: center;
  padding: 2.5rem 2rem;
  background: var(--green);
}

.portal-banner p {
  color: var(--silver);
  font-size: 0.95rem;
  margin-bottom: 0.8rem;
}

.btn-portal {
  display: inline-block;
  border: 2px solid var(--taupe);
  color: var(--taupe);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.7rem 1.8rem;
  border-radius: 4px;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}
.btn-portal:hover { background: var(--taupe); color: var(--green); }

/* ── Footer ─────────────────────────────────────────────────── */
footer {
  background: var(--green);
  border-top: 3px solid var(--taupe);
  color: var(--silver);
  text-align: center;
  padding: 2rem;
  font-size: 0.8rem;
}

footer img { height: 18px; vertical-align: middle; margin-right: 0.4rem; opacity: 0.7; filter: brightness(0) invert(1); }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 580px) {
  .form-row { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.8rem; }
}