/* ---------- Base ---------- */
:root {
  --teal: #4fb8b2;
  --teal-dark: #2e8f8a;
  --teal-light: #8eddd6;
  --teal-tint: #eef9f8;
  --ink: #1c2b2a;
  --ink-soft: #51625f;
  --bg: #ffffff;
  --bg-alt: #f5fafa;
  --border: #dceeec;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(31, 84, 80, 0.08);
  --container: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { line-height: 1.2; margin: 0 0 0.6em; }
h1 { font-size: clamp(2.1rem, 4.5vw, 3.4rem); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); font-weight: 700; letter-spacing: -0.01em; }
h3 { font-size: 1.15rem; font-weight: 600; }
p { margin: 0 0 1em; color: var(--ink-soft); }

a { color: var(--teal-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--teal-dark);
  margin-bottom: 0.9em;
}

.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none !important;
}

.brand-logo { width: 34px; height: 34px; }

.brand-name {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  color: var(--ink-soft);
  font-weight: 500;
  font-size: 0.95rem;
}

.site-nav a:hover { color: var(--teal-dark); text-decoration: none; }

.nav-cta {
  background: var(--teal);
  color: #fff !important;
  padding: 9px 18px;
  border-radius: 999px;
  font-weight: 600;
}

.nav-cta:hover { background: var(--teal-dark); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 8px;
  cursor: pointer;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(60% 80% at 85% 20%, var(--teal-tint) 0%, transparent 70%),
    var(--bg);
  padding: 110px 0 90px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 48px;
}

.hero-sub {
  font-size: 1.15rem;
  max-width: 34em;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.hero-art {
  display: flex;
  justify-content: center;
}

.hero-art img {
  width: min(320px, 70%);
  filter: drop-shadow(0 24px 40px rgba(79, 184, 178, 0.35));
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 0;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
}

.btn:hover { text-decoration: none; }
.btn:disabled { opacity: 0.6; cursor: default; }

.btn-primary {
  background: var(--teal);
  color: #fff;
  box-shadow: 0 6px 18px rgba(79, 184, 178, 0.35);
}

.btn-primary:hover { background: var(--teal-dark); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--border);
}

.btn-ghost:hover { border-color: var(--teal); color: var(--teal-dark); }

/* ---------- Services ---------- */
.pillars {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 40px 0 56px;
}

.pillar {
  background: linear-gradient(135deg, var(--teal-tint), #fff 70%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.pillar h3 { color: var(--teal-dark); }
.pillar p { margin-bottom: 0; }

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
  box-shadow: var(--shadow);
}

.card p { margin-bottom: 0; font-size: 0.93rem; }

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--teal-tint);
  color: var(--teal-dark);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  margin-bottom: 16px;
}

/* ---------- Approach ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 40px;
}

.step-num {
  display: inline-block;
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--teal);
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.step p { margin-bottom: 0; font-size: 0.95rem; }

/* ---------- About ---------- */
.about-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.about-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.about-points li {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-left: 4px solid var(--teal);
  border-radius: 10px;
  padding: 18px 20px;
  color: var(--ink-soft);
}

.about-points strong { color: var(--ink); }

/* ---------- Contact ---------- */
.contact-inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}

.contact-form {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-field { margin-bottom: 18px; }

.form-field label {
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
  margin-bottom: 6px;
}

.optional { font-weight: 400; color: var(--ink-soft); }

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font: inherit;
  color: var(--ink);
  background: #fff;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(79, 184, 178, 0.18);
}

.hidden-field { display: none; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-meta {
  margin: 0;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.dot { margin: 0 8px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translate(-50%, 16px);
  background: var(--ink);
  color: #fff;
  padding: 14px 22px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 500;
  box-shadow: 0 12px 32px rgba(28, 43, 42, 0.3);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 100;
  max-width: min(92vw, 480px);
  text-align: center;
}

.toast-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.toast-error { background: #b3402e; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .section { padding: 72px 0; }
  .hero { padding: 80px 0 64px; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  .hero-art img { width: 160px; }
  .pillars, .cards, .steps,
  .about-inner, .contact-inner, .form-row {
    grid-template-columns: 1fr;
  }
  .cards { grid-template-columns: 1fr 1fr; }

  .nav-toggle { display: flex; }

  .site-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 12px 24px 20px;
  }

  .site-nav.open { display: flex; }

  .site-nav a {
    padding: 10px 0;
    font-size: 1.05rem;
    width: 100%;
  }

  .nav-cta {
    text-align: center;
    margin-top: 8px;
    padding: 12px 18px;
  }
}

@media (max-width: 560px) {
  .cards { grid-template-columns: 1fr; }
  .contact-form { padding: 24px 20px; }
}