/* ==========================================================
   MINE WALLET — BRAND GUIDELINE STYLESHEET
   Shared across all pages.
   ========================================================== */

@font-face {
  font-family: "OT Sono";
  src: url("fonts/OT-Sono-Regular.otf") format("opentype");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "OT Sono";
  src: url("fonts/OT-Sono-Medium.otf") format("opentype");
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: "OT Sono";
  src: url("fonts/OT-Sono-SemiBold.otf") format("opentype");
  font-weight: 600;
  font-display: swap;
}
:root {
  /* Surfaces */
  --bone: #F3ECE8;
  --taupe: #E3DCD9;
  --paper: #FAF6F3;
  --neutral: #E6E6E6;
  --line: #D4CCC8;

  /* Ink */
  --ink: #0E1F2A;
  --ink-2: #1A2F3D;
  --ink-soft: #4A5963;
  --ink-mute: #8A8580;

  /* Brand gradient stops */
  --teal: #5BB6B0;
  --teal-deep: #2C7E7B;
  --amber: #F0C28A;
  --coral: #E27259;
  --coral-deep: #C94B30;

  /* Functional (digital) */
  --success: #2EAE74;
  --warning: #E0A03A;
  --danger: #C94B30;
  --info: #4A6FB8;

  /* Type — Sono is the only typeface */
  --font-sono: "OT Sono", -apple-system, "Helvetica Neue", "Inter", sans-serif;
  --font-display: "OT Sono", -apple-system, "Helvetica Neue", "Inter", sans-serif;
  /* legacy alias — kept so existing rules still resolve to Sono */
  --font-whyte: var(--font-display);

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  /* Radii */
  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-pill: 999px;

  --max: 1320px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bone);
  color: var(--ink);
  font-family: var(--font-sono);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.55;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

/* ============ WORDMARK ============
   The "mine" wordmark and standalone M are SVG assets with baked-in fills.
   Use <img class="wm"> or <img class="mw-mark"> with the desired color variant.
   Variants: -ink (default), -bone, -white, -coral.
   Scale via width/height on the <img>.
   ============================================================ */
img.wm,
img.mw-mark {
  display: inline-block;
  vertical-align: baseline;
  user-select: none;
  -webkit-user-drag: none;
}
img.wm {
  height: 0.7em;
  width: auto;
}
img.mw-mark {
  height: 1em;
  width: auto;
}
.wordmark img.wm { height: auto; }

/* ============ DISPLAY/EDITORIAL TYPE ============ */
.display, .display-1, .display-2, .display-3 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 0.96;
  color: var(--ink);
}
.display-1 { font-size: clamp(48px, 7.5vw, 112px); }
.display-2 { font-size: clamp(36px, 5vw, 72px); }
.display-3 { font-size: clamp(28px, 3.4vw, 48px); line-height: 1.05; }

.eyebrow {
  font-family: var(--font-sono);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.lead {
  font-family: var(--font-sono);
  font-weight: 400;
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 60ch;
}

.body { font-family: var(--font-sono); font-size: 14px; line-height: 1.6; color: var(--ink-2); }
.caption { font-family: var(--font-sono); font-size: 11px; color: var(--ink-mute); letter-spacing: 0.04em; }

/* ============ NAV ============ */
.brand-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--bone) 88%, transparent);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand-nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.brand-nav .logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
}
.brand-nav .logo-link svg { width: 22px; height: 22px; }
.brand-nav .logo-link span {
  font-family: var(--font-whyte);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: -0.01em;
}
.brand-nav .crumbs {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.brand-nav .nav-links {
  margin-left: auto;
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.brand-nav .nav-links a {
  text-decoration: none;
  color: var(--ink-soft);
  font-family: var(--font-sono);
  font-weight: 500;
  font-size: 12px;
  padding: 6px 10px;
  border-radius: var(--r-pill);
  letter-spacing: 0;
  transition: color .15s, background .15s;
}
.brand-nav .nav-links a:hover {
  color: var(--ink);
  background: var(--taupe);
}
.brand-nav .nav-links a.active {
  color: var(--bone);
  background: var(--ink);
}

/* ============ PAGE FRAME ============ */
.page {
  max-width: var(--max);
  margin: 0 auto;
  padding: 64px 32px 128px;
}

.page-header {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding-bottom: 56px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 64px;
}
.page-header .meta {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: baseline;
  font-family: var(--font-sono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.page-header .title { display: flex; flex-direction: column; gap: 14px; }
.page-header .lead { margin-top: 8px; }

/* ============ SECTIONS ============ */
.section {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}
.section:first-of-type { border-top: 0; padding-top: 0; }
.section-head {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  margin-bottom: 32px;
  align-items: baseline;
}
.section-head .num {
  font-family: var(--font-sono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.section-head .head-text h2 {
  font-family: var(--font-whyte);
  font-weight: 500;
  font-size: clamp(28px, 3.2vw, 44px);
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 8px;
}
.section-head .head-text p {
  font-family: var(--font-sono);
  font-size: 14px;
  color: var(--ink-soft);
  max-width: 60ch;
  margin: 0;
}

@media (max-width: 720px) {
  .section-head { grid-template-columns: 1fr; gap: 8px; }
}

/* ============ CARDS / SURFACES ============ */
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 24px;
}
.flat-card {
  background: var(--paper);
  border-radius: var(--r-md);
  padding: 24px;
}

/* ============ FOOTER ============ */
.brand-foot {
  border-top: 1px solid var(--line);
  margin-top: 64px;
  padding: 48px 32px;
  background: var(--taupe);
}
.brand-foot-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.brand-foot h4 {
  font-family: var(--font-sono);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0 0 12px;
}
.brand-foot ul { list-style: none; padding: 0; margin: 0; }
.brand-foot li { padding: 4px 0; }
.brand-foot a { color: var(--ink); text-decoration: none; font-size: 14px; }
.brand-foot a:hover { text-decoration: underline; }
.brand-foot .colophon {
  font-family: var(--font-sono);
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.6;
}

/* ============ UTILITY ============ */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--paper);
  font-family: var(--font-sono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; display: inline-block; }

/* mark/wordmark inline */
.mark-inline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-whyte);
  font-weight: 500;
}

/* gradient strip used as brand DNA */
.gradient-strip {
  height: 6px;
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, var(--teal) 0%, var(--amber) 50%, var(--coral) 100%);
}

/* swatch */
.swatch {
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--paper);
}
.swatch .chip {
  height: 140px;
}
.swatch .meta {
  padding: 14px 16px;
  display: grid;
  gap: 4px;
}
.swatch .name { font-family: var(--font-whyte); font-weight: 500; font-size: 14px; }
.swatch .codes { font-family: var(--font-sono); font-size: 11px; color: var(--ink-soft); }

/* ============ PRINT ============ */
@media print {
  .brand-nav, .brand-foot { display: none; }
  body { background: white; }
  .page { padding: 0; }
}