/* ============================================================
   Rathe TEC — base.css
   Tokens, reset, background layers, typography, buttons, layout
   ============================================================ */

:root {
  /* --- Cream / paper --- */
  --cream-100: #fbf6ee;
  --cream-200: #f5ecdd;
  --cream-300: #efe2cd;
  --cream-400: #e5d3b8;

  /* --- Light brown / cedar tan --- */
  --tan-100: #e0c8a8;
  --tan-200: #d3b28c;
  --tan-300: #c19a6f;
  --tan-400: #a87f52;
  --tan-500: #8a6540;
  --tan-600: #6d4e31;

  /* --- PNW greens --- */
  --green-100: #dfe9dd;
  --green-200: #b9cdb6;
  --green-300: #8aa987;
  --green-400: #5f8460;
  --green-500: #3f6444;
  --green-600: #2c4a34;
  --green-700: #1d3326;
  --moss: #7c9a5e;
  --pine: #14261d;

  /* --- Blacks / ink --- */
  --ink-900: #12100d;
  --ink-800: #1c1915;
  --ink-700: #2a251f;
  --ink-600: #3d362d;
  --ink-500: #5c5347;
  --ink-400: #7d7365;

  /* --- Semantic --- */
  --bg: var(--cream-100);
  --bg-alt: var(--cream-200);
  --surface: #fffdf9;
  --line: rgba(45, 36, 25, 0.14);
  --line-strong: rgba(45, 36, 25, 0.28);
  --text: var(--ink-800);
  --text-soft: var(--ink-500);
  --accent: var(--green-500);
  --accent-warm: var(--tan-400);
  --focus: var(--green-400);

  /* --- Hero banner photo (parked 2026-09-22: hero is mesh-only again;
       the marina photo now lives in the Founder section as assets/founder.jpg) --- */
  /* --hero-img: url("../assets/banner.jpg"); */

  /* --- Type --- */
  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, monospace;

  /* --- Space & shape --- */
  --gutter: clamp(1.15rem, 4vw, 3rem);
  --maxw: 1180px;
  --maxw-narrow: 760px;
  --radius: 14px;
  --radius-sm: 9px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(28, 22, 14, 0.06), 0 2px 8px rgba(28, 22, 14, 0.05);
  --shadow-md: 0 2px 6px rgba(28, 22, 14, 0.07), 0 14px 34px rgba(28, 22, 14, 0.10);
  --shadow-lg: 0 4px 10px rgba(28, 22, 14, 0.08), 0 26px 60px rgba(28, 22, 14, 0.16);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.075rem);
  line-height: 1.68;
  font-weight: 400;
  letter-spacing: 0.002em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Layered paper + grain background */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(1100px 620px at 8% -6%, rgba(95, 132, 96, 0.20), transparent 62%),
    radial-gradient(880px 560px at 96% 4%, rgba(193, 154, 111, 0.24), transparent 60%),
    radial-gradient(900px 700px at 50% 108%, rgba(44, 74, 52, 0.14), transparent 65%),
    linear-gradient(180deg, var(--cream-100), var(--cream-200) 55%, var(--cream-300));
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.055'/%3E%3C/svg%3E");
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: -0.018em;
  color: var(--ink-900);
  margin: 0 0 0.5em;
  text-wrap: balance;
}

h1 { font-size: clamp(2.15rem, 1.35rem + 3.6vw, 4.1rem); }
h2 { font-size: clamp(1.65rem, 1.2rem + 1.9vw, 2.7rem); }
h3 { font-size: clamp(1.15rem, 1.02rem + 0.5vw, 1.4rem); }
h4 { font-size: 1rem; letter-spacing: 0.02em; }

p { margin: 0 0 1.05em; }
p:last-child { margin-bottom: 0; }

a { color: var(--green-600); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--tan-500); }

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

ul[class], ol[class] { list-style: none; padding: 0; margin: 0; }

hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: var(--green-200); color: var(--pine); }

/* ---------- Utilities ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow, .narrow { max-width: var(--maxw-narrow); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 0.75rem; top: -3rem; z-index: 200;
  background: var(--pine); color: var(--cream-100);
  padding: 0.6rem 1rem; border-radius: 0 0 10px 10px;
  font-weight: 600; text-decoration: none; transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 0; color: var(--cream-100); }

.mono { font-family: var(--mono); font-size: 0.92em; letter-spacing: -0.01em; }

.kicker {
  font-family: var(--font-body);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tan-500);
  margin: 0 0 0.7rem;
}
.kicker--light { color: var(--green-200); }

.eyebrow {
  display: inline-block;
  font-size: 0.74rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--cream-200);
  background: rgba(20, 38, 29, 0.5);
  border: 1px solid rgba(223, 233, 221, 0.28);
  padding: 0.35rem 0.75rem; border-radius: 999px;
  margin: 0 0 1.1rem;
}

/* ---------- Sections ---------- */
.section { padding-block: clamp(3.25rem, 6vw, 6rem); position: relative; }
.section--alt {
  background:
    linear-gradient(180deg, rgba(255, 253, 249, 0.72), rgba(245, 236, 221, 0.5)),
    var(--cream-200);
  border-block: 1px solid var(--line);
}
.section__head { max-width: 780px; margin-bottom: clamp(1.75rem, 3vw, 2.75rem); }
.section__sub { color: var(--text-soft); font-size: clamp(1rem, 0.97rem + 0.25vw, 1.14rem); }
.section__sub--light { color: rgba(245, 236, 221, 0.78); }

.grid { display: grid; gap: clamp(1rem, 2vw, 1.5rem); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.grid--cards { grid-template-columns: repeat(auto-fill, minmax(min(100%, 316px), 1fr)); }

/* ---------- Buttons ---------- */
.btn {
  --btn-bg: var(--green-500);
  --btn-fg: var(--cream-100);
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-family: var(--font-body); font-size: 0.98rem; font-weight: 600;
  letter-spacing: 0.005em; line-height: 1;
  padding: 0.92rem 1.4rem;
  border-radius: 999px; border: 1.5px solid transparent;
  background: var(--btn-bg); color: var(--btn-fg);
  text-decoration: none; cursor: pointer;
  transition: transform 0.18s var(--ease), box-shadow 0.22s var(--ease),
              background-color 0.22s var(--ease), color 0.22s var(--ease),
              border-color 0.22s var(--ease);
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); color: var(--btn-fg); }
.btn:active { transform: translateY(0); }

.btn--primary { --btn-bg: linear-gradient(135deg, var(--green-500), var(--green-600)); }
.btn--primary:hover { --btn-bg: linear-gradient(135deg, var(--green-600), var(--pine)); }

.btn--ghost {
  --btn-bg: transparent; --btn-fg: var(--ink-800);
  border-color: var(--line-strong);
}
.btn--ghost:hover { --btn-fg: var(--pine); border-color: var(--green-400); }

.btn--outline {
  --btn-bg: var(--surface); --btn-fg: var(--green-600);
  border-color: var(--green-300);
}
.btn--outline:hover { --btn-bg: var(--green-100); }

.btn--dark { --btn-bg: var(--pine); }
.btn--dark:hover { --btn-bg: var(--green-600); }

.btn--ghost-dark {
  --btn-bg: transparent; --btn-fg: var(--ink-800);
  border-color: rgba(45, 36, 25, 0.3);
}
.btn--ghost-dark:hover { --btn-fg: var(--green-600); }

.btn--quiet { --btn-bg: transparent; --btn-fg: var(--ink-400); padding-block: 0.55rem; }
.btn--quiet:hover { --btn-fg: #a04a3c; box-shadow: none; }

.btn--sm { font-size: 0.84rem; padding: 0.6rem 1rem; }
.btn--lg { font-size: 1.06rem; padding: 1.05rem 1.9rem; }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; transform: none; box-shadow: none; }

.tag {
  display: inline-block; font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--green-600); background: var(--green-100);
  border: 1px solid var(--green-200);
  padding: 0.22rem 0.55rem; border-radius: 999px;
  vertical-align: middle; margin-left: 0.5rem;
}

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important; animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

@media (prefers-contrast: more) {
  :root { --text-soft: var(--ink-700); --line: rgba(28,22,14,0.4); }
}