/* Northmind LLC — main stylesheet
   3-color palette: sand (#EADFC8) · ink (#14100D) · coral (#E85D3B) */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--sand);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { max-width: 100%; display: block; }

:root {
  /* Three-color palette (with tonal variants of the same hues) */
  --sand:       #EADFC8;   /* main light — warm cream */
  --sand-2:     #DFD1B4;   /* darker sand for depth */
  --sand-soft:  #F1E7D0;   /* lighter sand */
  --ink:        #14100D;   /* warm near-black */
  --ink-2:      #22190F;   /* softer dark for cards on dark */
  --ink-soft:   #3A2F24;   /* body text */
  --muted:      #7A6852;   /* warm muted tone (of ink) */
  --accent:     #E85D3B;   /* warm coral — the one accent */
  --accent-2:   #C43F1E;   /* deeper coral for hover */

  --line:       rgba(20, 16, 13, .14);
  --line-strong:rgba(20, 16, 13, .28);
  --line-dark:  rgba(234, 223, 200, .14);

  --radius:     14px;
  --radius-sm:  8px;
  --shadow-sm:  0 1px 2px rgba(20,16,13,.06), 0 1px 3px rgba(20,16,13,.08);
  --shadow-md:  0 10px 30px -10px rgba(20,16,13,.24);
  --max:        1180px;
}

/* Layout */
.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
section { padding: 96px 0; }
@media (max-width: 720px) { section { padding: 64px 0; } }

/* Typography */
h1, h2, h3, h4 { font-family: 'Inter', sans-serif; font-weight: 600; letter-spacing: -0.02em; color: var(--ink); margin: 0 0 .5em; line-height: 1.15; }
h1 { font-size: clamp(2.4rem, 5.5vw, 4.2rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.75rem); letter-spacing: -0.025em; }
h3 { font-size: 1.25rem; }
p  { margin: 0 0 1em; color: var(--ink-soft); }
a  { color: var(--ink); text-decoration: none; transition: color .18s ease; }
a:hover { color: var(--accent); }
.muted { color: var(--muted); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .78rem; font-weight: 500; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 18px;
}
.eyebrow::before {
  content: ''; width: 22px; height: 2px; border-radius: 2px;
  background: var(--accent);
}
.display-serif { font-family: 'Instrument Serif', Georgia, serif; font-style: italic; font-weight: 400; letter-spacing: -0.01em; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 22px; border-radius: 999px; font-weight: 500; font-size: .95rem;
  border: 1px solid transparent; cursor: pointer; transition: all .2s ease;
  text-decoration: none; white-space: nowrap;
}
.btn-sm { padding: 10px 18px; font-size: .88rem; }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-2); border-color: var(--accent-2); color: #fff; transform: translateY(-1px); box-shadow: 0 12px 28px -10px rgba(232,93,59,.55); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--sand); border-color: var(--ink); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(234, 223, 200, .88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; font-size: 1.05rem; letter-spacing: -0.01em; color: var(--ink); }
.brand:hover { color: var(--ink); }
.brand-mark {
  width: 22px; height: 22px; border-radius: 6px;
  background: var(--accent);
  position: relative;
}
.brand-mark::after {
  content: ''; position: absolute; inset: 4px; border-radius: 3px;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,.28) 100%);
}
.nav-primary { display: flex; gap: 32px; }
.nav-primary a { font-size: .93rem; color: var(--ink-soft); font-weight: 500; }
.nav-primary a:hover { color: var(--accent); }
.nav-cta { display: inline-flex; }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 4px 0; transition: .2s; border-radius: 2px; }
.mobile-menu { display: none; flex-direction: column; padding: 16px 24px 24px; gap: 16px; border-top: 1px solid var(--line); background: var(--sand); }
.mobile-menu a { font-size: 1rem; font-weight: 500; padding: 8px 0; color: var(--ink); }
.mobile-menu .btn { justify-content: center; margin-top: 8px; }

@media (max-width: 860px) {
  .nav-primary, .nav-cta { display: none; }
  .nav-toggle { display: block; }
  .mobile-menu[hidden] { display: none; }
  .mobile-menu:not([hidden]) { display: flex; }
}

/* Hero — SAND with coral warmth */
.hero {
  padding: 120px 0 100px;
  background:
    radial-gradient(900px 500px at 92% -10%, rgba(232, 93, 59, .35), transparent 60%),
    radial-gradient(1000px 520px at 8% 100%, rgba(196, 63, 30, .22), transparent 60%),
    var(--sand);
  border-bottom: 1px solid var(--line);
}
.hero-inner { max-width: 900px; }
.hero h1 { margin-bottom: 24px; }
.hero h1 .accent {
  font-family: 'Instrument Serif', Georgia, serif;
  font-style: italic; font-weight: 400;
  color: var(--accent);
  letter-spacing: 0;
}
.hero-sub { font-size: clamp(1.05rem, 1.5vw, 1.2rem); color: var(--ink-soft); max-width: 640px; margin-bottom: 36px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-meta {
  display: flex; gap: 40px; margin-top: 72px; padding-top: 40px;
  border-top: 1px solid var(--line-strong); flex-wrap: wrap;
}
.hero-meta div { flex: 1 1 200px; }
.hero-meta .k {
  font-family: 'Instrument Serif', Georgia, serif;
  font-style: italic; font-weight: 400;
  font-size: 2.4rem; letter-spacing: -0.02em;
  margin-bottom: 4px; color: var(--accent); line-height: 1;
}
.hero-meta .v { font-size: .88rem; color: var(--muted); }

/* Sections */
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head h2 { margin-bottom: 16px; }
.section-head p { font-size: 1.1rem; color: var(--muted); }

/* Services — DARK inverse */
.services { background: var(--ink); color: var(--sand); }
.services h2, .services h3 { color: var(--sand); }
.services p { color: rgba(234, 223, 200, .78); }
.services .section-head p { color: rgba(234, 223, 200, .72); }
.services .eyebrow { color: var(--accent); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 900px) { .cards { grid-template-columns: 1fr; } }
.card {
  background: var(--sand); border: 1px solid transparent;
  border-radius: var(--radius); padding: 40px 32px 36px;
  transition: transform .25s ease, box-shadow .25s ease;
  position: relative; overflow: hidden;
  color: var(--ink);
}
.card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--accent);
}
.card:hover { transform: translateY(-4px); box-shadow: 0 24px 44px -14px rgba(0,0,0,.5); }
.card h3 { color: var(--ink); margin-bottom: 12px; }
.card-num {
  font-family: 'Instrument Serif', Georgia, serif; font-style: italic;
  font-size: 1.7rem; color: var(--accent); margin-bottom: 24px;
}
.card p { color: var(--ink-soft); font-size: .95rem; margin-bottom: 16px; }
.card ul { list-style: none; padding: 0; margin: 0; }
.card li { font-size: .88rem; color: var(--muted); padding: 6px 0; border-top: 1px solid var(--line); }
.card li:first-child { border-top: 0; }

/* Approach — SAND darker */
.approach { background: var(--sand-2); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; list-style: none; padding: 0; margin: 0; counter-reset: step; }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr; } }
.steps li { position: relative; padding: 32px 0 0; border-top: 3px solid var(--accent); }
.step-num {
  font-family: 'Instrument Serif', Georgia, serif; font-style: italic;
  font-size: 2.6rem; color: var(--accent); margin-bottom: 20px; line-height: 1;
}
.steps h3 { margin-bottom: 10px; font-size: 1.35rem; }
.steps p { color: var(--ink-soft); font-size: .95rem; }

/* About — DARK inverse */
.about { background: var(--ink); color: var(--sand); }
.about h2 { color: var(--sand); }
.about p { color: rgba(234, 223, 200, .78); }
.about .eyebrow { color: var(--accent); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; gap: 32px; } }
.about-body p { font-size: 1.05rem; margin-bottom: 20px; }
.about-facts {
  margin-top: 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
  padding-top: 24px; border-top: 1px solid var(--line-dark);
}
.about-facts dt { font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); margin-bottom: 4px; }
.about-facts dd { margin: 0 0 12px; font-weight: 500; color: var(--sand); font-size: .95rem; }

/* Contact — SAND with dark form panel */
.contact { background: var(--sand); color: var(--ink); }
.contact h2, .contact h3 { color: var(--ink); }
.contact p { color: var(--ink-soft); }
.contact .eyebrow { color: var(--accent); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; gap: 40px; } }
.contact-info { list-style: none; padding: 0; margin: 32px 0 0; }
.contact-info li { padding: 16px 0; border-top: 1px solid var(--line-strong); font-size: .95rem; color: var(--ink-soft); }
.contact-info li strong { display: block; font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; color: var(--accent); font-weight: 600; margin-bottom: 6px; }
.contact-info a { color: var(--ink); }
.contact-info a:hover { color: var(--accent); }

/* Form (dark panel on sand) */
.form { display: grid; gap: 18px; background: var(--ink); padding: 32px; border-radius: var(--radius); border: 1px solid var(--ink); color: var(--sand); }
.form label { display: block; font-size: .82rem; color: rgba(234, 223, 200, .72); font-weight: 500; }
.form input, .form textarea {
  width: 100%; margin-top: 8px;
  padding: 12px 14px; font-size: .95rem; font-family: inherit;
  background: rgba(234, 223, 200, .06); border: 1px solid rgba(234, 223, 200, .18);
  border-radius: var(--radius-sm); color: var(--sand);
  transition: border-color .18s ease, background .18s ease;
}
.form input::placeholder, .form textarea::placeholder { color: rgba(234, 223, 200, .38); }
.form input:focus, .form textarea:focus { outline: none; border-color: var(--accent); background: rgba(234, 223, 200, .10); }
.form textarea { resize: vertical; min-height: 120px; }
.form .btn { width: 100%; margin-top: 8px; background: var(--accent); color: #fff; border-color: var(--accent); }
.form .btn:hover { background: var(--accent-2); border-color: var(--accent-2); color: #fff; }
.form-note { font-size: .82rem; color: rgba(234, 223, 200, .55); }
.form-note a { color: var(--accent) !important; }

.alert { padding: 14px 18px; border-radius: var(--radius-sm); font-size: .92rem; margin-bottom: 20px; }
.alert-success { background: rgba(232,93,59,.18); color: var(--sand); border: 1px solid rgba(232,93,59,.45); }
.alert-error { background: rgba(232,93,59,.14); color: var(--sand); border: 1px solid rgba(232,93,59,.35); }

/* Footer — sand darker with coral accent bar */
.site-footer {
  background: var(--sand-2);
  border-top: 4px solid var(--accent);
  padding: 72px 0 0;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.4fr; gap: 40px; padding-bottom: 56px; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand p { margin-top: 12px; font-size: .9rem; color: var(--ink-soft); }
.footer-title { font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; color: var(--accent); margin-bottom: 16px; font-weight: 600; }
.site-footer a { display: block; padding: 4px 0; font-size: .93rem; color: var(--ink-soft); }
.site-footer a:hover { color: var(--accent); }
.site-footer p { font-size: .9rem; margin: 0; color: var(--ink-soft); }
.footer-bottom { border-top: 1px solid var(--line); padding: 24px 0; }
.footer-bottom-inner { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: .82rem; color: var(--muted); }

/* Legal pages */
.legal-page { padding: 72px 0 96px; background: var(--sand); }
.legal-page .container { max-width: 780px; }
.legal-page h1 { font-size: clamp(2rem, 4vw, 2.8rem); margin-bottom: 8px; color: var(--ink); }
.legal-page .meta { color: var(--muted); font-size: .9rem; margin-bottom: 40px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.legal-page h2 { font-size: 1.35rem; margin: 40px 0 12px; color: var(--ink); }
.legal-page h3 { font-size: 1.05rem; margin: 24px 0 8px; color: var(--ink); }
.legal-page p, .legal-page li { color: var(--ink-soft); font-size: .98rem; }
.legal-page ul { padding-left: 22px; }
.legal-page li { margin-bottom: 6px; }
.legal-page a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

/* Utility */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}