/* Northline Studio LLC website styles.
   Follows the Northline Studio LLC Brand Guide v1.0 (October 2026):
   navy carries the brand, gold is the accent (marks and rules only, never small text),
   slate for secondary text, cream or white backgrounds, Inter for everything.
   Layout: a white header with the primary lockup, a cream hero framed by the gold north line,
   then alternating white and cream sections on a 1120px column, with one navy band for data rules. */

@font-face {
  font-family: "Inter";
  src: url("fonts/inter-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --paper: #FFFFFF;
  --cream: #F7F5F2;
  --ink: #1E2B3A;
  --heading: #1B365D;
  --slate: #5A6A7A;
  --gold: #C4A35A;
  --rule: #E3DED5;
  --card: #FFFFFF;
  --btn-bg: #1B365D;
  --btn-fg: #FFFFFF;
  --btn-hover: #142A49;
  --band: #1B365D;
  --band-ink: #FFFFFF;
  --band-muted: #C9D2DD;
  --band-rule: #34507A;
  --focus: #1B365D;
  --show-light: block;
  --show-dark: none;
  --font: "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --wrap: 1120px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0F1F35; --cream: #13284A; --ink: #E6EBF1; --heading: #F7F5F2; --slate: #A9B6C4;
    --gold: #C4A35A; --rule: #26405F; --card: #0F1F35; --btn-bg: #F7F5F2; --btn-fg: #1B365D;
    --btn-hover: #FFFFFF; --band: #1B365D; --band-ink: #FFFFFF; --band-muted: #C9D2DD; --band-rule: #34507A;
    --focus: #C4A35A; --show-light: none; --show-dark: block;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0F1F35; --cream: #13284A; --ink: #E6EBF1; --heading: #F7F5F2; --slate: #A9B6C4;
  --gold: #C4A35A; --rule: #26405F; --card: #0F1F35; --btn-bg: #F7F5F2; --btn-fg: #1B365D;
  --btn-hover: #FFFFFF; --band: #1B365D; --band-ink: #FFFFFF; --band-muted: #C9D2DD; --band-rule: #34507A;
  --focus: #C4A35A; --show-light: none; --show-dark: block;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--heading); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
a:focus-visible, .btn:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 2px; }
img { max-width: 100%; height: auto; display: block; }
.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: max(16px, 4vw); }
h1, h2, h3 { color: var(--heading); margin: 0; text-wrap: balance; }
h1 { font-size: clamp(2rem, 4.4vw, 2.5rem); font-weight: 700; line-height: 1.15; letter-spacing: -0.015em; }
h2 { font-size: clamp(1.375rem, 2.4vw, 1.5rem); font-weight: 600; line-height: 1.25; }
h3 { font-size: 1.125rem; font-weight: 600; line-height: 1.3; }
p { margin: 0; }
.eyebrow { font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.18em; text-transform: uppercase; color: var(--slate); }
.muted { color: var(--slate); }
.logo-light { display: var(--show-light); }
.logo-dark { display: var(--show-dark); }

/* Buttons: navy background, white text (brand guide, section 7). */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 10px 20px; border-radius: 4px; font-weight: 600; font-size: 0.9375rem; background: var(--btn-bg); color: var(--btn-fg); border: 1px solid var(--btn-bg); }
.btn:hover { background: var(--btn-hover); border-color: var(--btn-hover); text-decoration: none; }
.btn.quiet { background: transparent; color: var(--heading); border-color: var(--rule); }
.btn.quiet:hover { border-color: var(--heading); background: transparent; }

/* Header */
.site-head { background: var(--paper); border-bottom: 1px solid var(--rule); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px 32px; padding-block: 20px; flex-wrap: wrap; }
.brand img { width: 200px; }
.site-nav { display: flex; align-items: center; gap: 8px 28px; flex-wrap: wrap; font-size: 0.9375rem; font-weight: 500; }
.site-nav a { color: var(--ink); padding-block: 10px; }
.site-nav a.btn { color: var(--btn-fg); padding-block: 10px; }

/* Hero: the gold north line, a vertical stroke rising from a short baseline, frames the statement. */
.hero { background: var(--cream); padding-block: clamp(48px, 8vw, 96px); }
.north { position: relative; padding: 4px 0 36px 36px; max-width: 760px; display: grid; gap: 20px; }
.north::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--gold); }
.north::after { content: ""; position: absolute; left: 0; bottom: 0; width: 112px; height: 3px; background: var(--gold); }
.hero .lede { font-size: 1.1875rem; max-width: 58ch; color: var(--ink); }
.hero .actions { display: flex; gap: 12px; flex-wrap: wrap; padding-top: 8px; }

/* Sections */
.section { padding-block: clamp(56px, 8vw, 88px); }
.section.alt { background: var(--cream); }
.sec-head { display: grid; gap: 10px; max-width: 62ch; margin-bottom: 40px; }
.sec-head p:not(.eyebrow) { color: var(--slate); }

/* What we build */
.services { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 56px; }
.service { display: grid; gap: 8px; align-content: start; padding-block: 24px 28px; border-top: 1px solid var(--rule); min-width: 0; }
.service h3 { display: flex; align-items: baseline; gap: 12px; }
.service h3::before { content: ""; flex: none; width: 2px; height: 0.85em; background: var(--gold); transform: translateY(0.08em); }
.service .uses { font-size: 0.875rem; color: var(--slate); }
.service .uses b { font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.75rem; margin-right: 6px; }

/* How a project runs */
.process { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 56px; align-items: start; }
.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; display: grid; }
.steps li { counter-increment: step; display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 4px 12px; padding-block: 20px; border-top: 1px solid var(--rule); }
.steps li::before { content: counter(step, decimal-leading-zero); grid-row: span 2; font-size: 0.875rem; font-weight: 600; color: var(--slate); font-variant-numeric: tabular-nums; padding-top: 2px; }
.steps p { color: var(--slate); }

.scope { background: var(--card); border: 1px solid var(--rule); border-radius: 4px; padding: 24px; display: grid; gap: 18px; min-width: 0; }
.scope-top { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; padding-bottom: 14px; border-bottom: 2px solid var(--gold); }
.scope-top .tag { font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--slate); border: 1px solid var(--rule); border-radius: 999px; padding: 2px 10px; }
.scope .project { font-weight: 600; color: var(--heading); }
.scope dl { margin: 0; display: grid; gap: 14px; }
.scope dt { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--slate); margin-bottom: 6px; }
.scope dd { margin: 0; }
.scope ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; font-size: 0.9375rem; }
.scope li { display: grid; grid-template-columns: 18px minmax(0, 1fr); gap: 8px; }
.scope li::before { content: "+"; color: var(--heading); font-weight: 600; text-align: center; }
.scope .out li::before { content: "\00D7"; color: var(--slate); }
.scope .out li { color: var(--slate); }
.scope .note { font-size: 0.8125rem; color: var(--slate); border-top: 1px solid var(--rule); padding-top: 12px; }

/* Our own apps */
.apps { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.app { display: grid; gap: 10px; align-content: start; padding: 24px; border: 1px solid var(--rule); border-radius: 4px; background: var(--card); min-width: 0; }
.status { justify-self: start; display: inline-flex; align-items: center; gap: 8px; font-size: 0.75rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--slate); }
.status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--gold); }
.app p { color: var(--slate); }

/* Data rules band: navy with reversed type and gold rules. */
.band { background: var(--band); color: var(--band-ink); padding-block: clamp(56px, 8vw, 88px); }
.band h2, .band h3 { color: var(--band-ink); }
.band .eyebrow { color: var(--band-muted); }
.rules { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; }
.rules div { display: grid; gap: 8px; align-content: start; padding-top: 18px; border-top: 2px solid var(--gold); min-width: 0; }
.rules p { color: var(--band-muted); }

/* About and contact */
.prose { display: grid; gap: 1em; max-width: 65ch; }
.contact { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; margin-top: 8px; }
.contact div { display: grid; gap: 6px; padding-top: 16px; border-top: 1px solid var(--rule); min-width: 0; }
.contact .eyebrow { font-size: 0.75rem; }
.contact .val { font-size: 1.125rem; font-weight: 500; color: var(--heading); overflow-wrap: anywhere; }
.contact-cta { margin-top: 32px; }

/* Footer */
.site-foot { border-top: 1px solid var(--rule); padding-block: 28px; font-size: 0.875rem; color: var(--slate); }
.site-foot .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.site-foot .id { display: flex; align-items: center; gap: 12px; }
.site-foot .id img { width: 32px; height: 32px; border-radius: 6px; }
.site-foot nav { display: flex; gap: 20px; }
.site-foot nav a { color: var(--slate); }

/* Privacy notice page */
.doc { padding-block: clamp(40px, 6vw, 72px); }
.doc .prose { gap: 0.9em; }
.doc h1 { margin-block: 8px 4px; }
.doc h2 { font-size: 1.25rem; margin-top: 1.4em; }
.doc .back { font-size: 0.9375rem; font-weight: 500; }

@media (max-width: 820px) {
  .services, .process, .apps { grid-template-columns: 1fr; }
  .process { gap: 40px; }
  .rules, .contact { grid-template-columns: 1fr; }
  .rules { gap: 24px; }
}
@media (max-width: 560px) {
  .site-nav a:not(.btn):not(.back) { display: none; }
  .brand img { width: 180px; }
  .north { padding-left: 24px; }
}