/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-primary:    #1a3c6e;
  --color-primary-dk: #122b52;
  --color-accent:     #2e7d5e;
  --color-accent-lt:  #e8f5f0;
  --color-bg:         #ffffff;
  --color-bg-alt:     #f5f7fa;
  --color-text:       #1e2533;
  --color-muted:      #5a6272;
  --color-border:     #d8dde6;

  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --radius: 8px;
  --shadow: 0 2px 12px rgba(0,0,0,.08);
  --transition: 180ms ease;

  --container-max: 1100px;
  --container-pad: clamp(1rem, 4vw, 2rem);
  --section-gap:   clamp(3rem, 8vw, 6rem);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main { flex: 1; }

img, svg { max-width: 100%; display: block; }

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

h1, h2, h3 { line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); margin-bottom: .75rem; }
h3 { font-size: 1.15rem; margin-bottom: .5rem; }

p { color: var(--color-muted); margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

ul { list-style: none; }

/* ── Layout helpers ───────────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section { padding-block: var(--section-gap); }
.section--alt { background: var(--color-bg-alt); }

.content-narrow { max-width: 680px; }
.content-narrow h2 { margin-top: 2rem; }
.content-narrow h2:first-child { margin-top: 0; }
.content-narrow ul { list-style: disc; padding-left: 1.25rem; }
.content-narrow li { color: var(--color-muted); margin-bottom: .4rem; }

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: .7em 1.6em;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  text-decoration: none;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dk);
  border-color: var(--color-primary-dk);
  text-decoration: none;
}

.btn-secondary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn-secondary:hover {
  background: #25614b;
  border-color: #25614b;
  text-decoration: none;
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
}

/* ── Header / Nav ─────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 6px rgba(0,0,0,.06);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: 64px;
}

.logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
  text-decoration: none;
}
.logo:hover { text-decoration: none; }

.nav ul {
  display: flex;
  gap: .25rem;
  align-items: center;
}

.nav a {
  padding: .45em .9em;
  border-radius: var(--radius);
  font-size: .9rem;
  font-weight: 500;
  color: var(--color-text);
  transition: background var(--transition), color var(--transition);
}
.nav a:hover, .nav a.active {
  background: var(--color-bg-alt);
  color: var(--color-primary);
  text-decoration: none;
}
.nav a.active { font-weight: 700; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text);
  padding: .25rem;
}

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  padding-block: clamp(4rem, 10vw, 8rem);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dk) 100%);
  color: #fff;
}

.hero h1 { color: #fff; margin-bottom: 1rem; }
.hero p   { color: rgba(255,255,255,.8); font-size: 1.15rem; max-width: 540px; margin-bottom: 2rem; }

.hero .btn { margin-right: .75rem; margin-bottom: .75rem; }

.hero .btn-secondary { background: rgba(255,255,255,.15); border-color: rgba(255,255,255,.4); }
.hero .btn-secondary:hover { background: rgba(255,255,255,.25); }

/* ── Page hero (inner pages) ──────────────────────────────── */
.page-hero {
  padding-block: clamp(2.5rem, 6vw, 4rem);
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}
.page-hero h1 { margin-bottom: .5rem; }
.page-hero p  { font-size: 1.05rem; }

/* ── Card grid ────────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }

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

/* ── Services list ────────────────────────────────────────── */
.service-list { display: flex; flex-direction: column; gap: 2.5rem; }

.service-item {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 2.5rem;
}
.service-item:last-child { border-bottom: none; padding-bottom: 0; }

.service-icon {
  font-size: 2.5rem;
  flex-shrink: 0;
  width: 3.5rem;
  text-align: center;
  margin-top: .1rem;
}

/* ── Contact ──────────────────────────────────────────────── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 4rem;
  align-items: start;
}

.contact-form .form-group { margin-bottom: 1.25rem; }

label {
  display: block;
  font-size: .875rem;
  font-weight: 600;
  margin-bottom: .35rem;
  color: var(--color-text);
}

input, textarea {
  width: 100%;
  padding: .65em .9em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
}
input:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26,60,110,.12);
}

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

.form-status { margin-top: .75rem; font-size: .9rem; }
.form-status.success { color: var(--color-accent); }
.form-status.error   { color: #c0392b; }

.contact-info { background: var(--color-bg-alt); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 1.75rem; }
.contact-info h2 { margin-bottom: 1.25rem; }

.info-list li {
  display: flex;
  flex-direction: column;
  margin-bottom: 1.25rem;
}
.info-list li:last-child { margin-bottom: 0; }
.info-list strong { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--color-muted); margin-bottom: .2rem; }
.info-list a { color: var(--color-primary); }

/* ── CTA ──────────────────────────────────────────────────── */
.cta { text-align: center; }
.cta h2 { margin-bottom: .75rem; }
.cta p  { margin-bottom: 1.75rem; }

/* ── Footer ───────────────────────────────────────────────── */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,.7);
  padding-block: 1.5rem;
  font-size: .875rem;
  text-align: center;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-toggle { display: block; }

  .nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem var(--container-pad);
    box-shadow: 0 4px 12px rgba(0,0,0,.1);
  }
  .nav.is-open { display: block; }
  .nav ul { flex-direction: column; gap: .25rem; }
  .nav a { display: block; }

  .contact-layout { grid-template-columns: 1fr; gap: 2rem; }

  .service-item { flex-direction: column; gap: .75rem; }
  .service-icon { width: auto; }
}

@media (max-width: 480px) {
  .hero .btn { display: block; text-align: center; margin-right: 0; }
}