/* =========================================================
   Keystone Jewelry Appraisals — Japandi redesign
   ========================================================= */

/* ---------- Design tokens ---------- */
:root {
  --paper:        #F7F3EC;   /* warm off-white background */
  --paper-deep:   #EFE9DD;   /* slightly deeper paper for subtle bands */
  --ink:          #1F1D1A;   /* primary text */
  --ink-soft:     #4A453E;   /* secondary text */
  --stone:        #7A736B;   /* muted captions/metadata */
  --hairline:     #E4DED4;   /* dividers, borders */
  --brass:        #8E7344;   /* accent — used sparingly */
  --brass-deep:   #6F5A35;   /* hover state for brass */

  --serif:  "EB Garamond", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --sans:   "Inter", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;

  --col:    680px;             /* narrow reading column */
  --col-wide: 880px;           /* slightly wider for resource lists */
  --side:   24px;              /* mobile side margin */

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4.5rem;
  --space-7: 6.5rem;
  --space-8: 8rem;
}

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

html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.7;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--hairline);
  transition: color 120ms ease, border-color 120ms ease;
}
a:hover { color: var(--brass-deep); border-bottom-color: var(--brass); }

p { margin: 0 0 1.1em; }

ul, ol { padding-left: 1.25em; margin: 0 0 1.25em; }
li { margin-bottom: 0.35em; }

/* ---------- Typography ---------- */
h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.005em;
  line-height: 1.15;
  margin: 0 0 0.6em;
}

h1 {
  font-size: clamp(2rem, 4.8vw, 3.2rem);
  font-style: italic;
}

h2 {
  font-size: clamp(1.4rem, 2.6vw, 1.85rem);
  margin-top: var(--space-4);
}

h3 {
  font-size: clamp(1.15rem, 1.8vw, 1.3rem);
  margin-top: var(--space-4);
  font-style: italic;
}

.eyebrow {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--stone);
  margin-bottom: var(--space-2);
}

.lead {
  font-family: var(--serif);
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  line-height: 1.55;
  color: var(--ink-soft);
  font-style: italic;
}

blockquote {
  margin: var(--space-4) 0;
  padding: 0 0 0 var(--space-3);
  border-left: 1px solid var(--brass);
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--ink-soft);
}

hr.rule {
  border: 0;
  border-top: 1px solid var(--hairline);
  margin: var(--space-3) 0;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--col);
  margin-inline: auto;
  padding-inline: var(--side);
}

.container--wide {
  max-width: var(--col-wide);
}

main {
  padding-top: var(--space-4);
  padding-bottom: 0;
}

section + section { margin-top: var(--space-5); }

/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--hairline);
  padding: var(--space-3) 0 var(--space-3);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.site-header__brand a {
  display: inline-block;
  border: 0;
}
.site-header__brand img {
  height: 72px;
  width: auto;
}
.site-header__meta {
  font-size: 0.85rem;
  color: var(--stone);
  text-align: right;
  line-height: 1.5;
}
.site-header__meta a { border-bottom: 0; color: var(--ink); }
.site-header__meta a:hover { color: var(--brass-deep); }

.site-nav {
  border-bottom: 1px solid var(--hairline);
  background: var(--paper);
}
.site-nav__inner {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding: var(--space-2) var(--side);
}
.site-nav a {
  border-bottom: 0;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding: 0.25em 0;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--brass-deep);
  box-shadow: inset 0 -1px 0 0 var(--brass);
}

/* ---------- Hero ---------- */
.hero {
  text-align: center;
  padding: 0;
}
.hero h1 {
  margin-bottom: var(--space-3);
}
.hero .lead {
  margin: 0 auto var(--space-4);
}
.hero__contact {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  font-family: var(--sans);
  font-size: 0.95rem;
  color: var(--ink-soft);
  margin-top: var(--space-4);
}
.hero__contact a { border-bottom: 0; }
.hero__contact a:hover { color: var(--brass-deep); }
.hero__contact .label {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--stone);
  margin-bottom: 0.25em;
}

/* ---------- Gateway cards (home) ---------- */
.gateway {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--hairline);
}
@media (min-width: 720px) {
  .gateway { grid-template-columns: repeat(2, 1fr); gap: var(--space-5); }
}
.gateway a {
  display: block;
  border-bottom: 0;
  padding: var(--space-3) 0;
}
.gateway h3 {
  margin: 0 0 0.4em;
  font-size: 1.15rem;
  font-style: italic;
}
.gateway p {
  color: var(--stone);
  font-size: 0.95rem;
  margin-bottom: 0.4em;
}
.gateway .more {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brass-deep);
  font-weight: 500;
}

/* ---------- About page ---------- */
.bio {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  align-items: start;
}
@media (min-width: 720px) {
  .bio { grid-template-columns: 1fr 220px; }
}
.bio__credentials {
  text-align: center;
  font-size: 0.85rem;
  color: var(--stone);
  line-height: 1.4;
}
.bio__credentials .portrait {
  width: 100%;
  max-width: 220px;
  margin: 0 auto var(--space-4);
  display: block;
}
.bio__credentials .badge {
  width: 110px;
  margin: 0 auto var(--space-2);
  opacity: 0.9;
  display: block;
}

.differentiators {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-top: var(--space-5);
}
@media (min-width: 720px) {
  .differentiators { grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
}
.differentiator h3 {
  margin: 0 0 0.4em;
  font-size: 1.1rem;
}
.differentiator p {
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin: 0;
}

/* ---------- Services page ---------- */
.callout {
  background: var(--paper-deep);
  padding: var(--space-4) var(--space-4);
  margin: var(--space-5) 0;
  border-left: 2px solid var(--brass);
}
.callout .eyebrow { color: var(--brass-deep); }
.callout h3 {
  margin-top: 0;
  font-style: italic;
}
.callout p:last-child { margin-bottom: 0; }

.services-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5em var(--space-4);
}
@media (min-width: 600px) {
  .services-list { grid-template-columns: repeat(2, 1fr); }
}
.services-list li {
  padding: 0.55em 0;
  border-bottom: 1px solid var(--hairline);
  font-size: 0.97rem;
  color: var(--ink-soft);
}

.process ol {
  counter-reset: step;
  list-style: none;
  padding: 0;
}
.process li {
  counter-increment: step;
  position: relative;
  padding-left: 2.4em;
  margin-bottom: var(--space-3);
}
.process li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.1em;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--brass);
}

.faq h3 {
  font-size: 1.05rem;
  font-style: normal;
  font-family: var(--sans);
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.005em;
  margin-bottom: 0.4em;
  margin-top: var(--space-4);
}
.faq h3:first-of-type { margin-top: var(--space-2); }
.faq p { color: var(--ink-soft); }

/* ---------- Reference page ---------- */
.resources-toc {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  margin-bottom: var(--space-5);
}
.resources-toc a {
  border-bottom: 0;
  color: var(--ink-soft);
}
.resources-toc a:hover { color: var(--brass-deep); }

.gem-toc {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
  padding: var(--space-3) 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  margin: var(--space-4) 0 var(--space-5);
  font-size: 0.92rem;
}
.gem-toc a {
  border-bottom: 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-style: italic;
  white-space: nowrap;
}
.gem-toc a:hover { color: var(--brass-deep); }

.gem-cards {
  margin: 0 0 var(--space-5);
}

details.gem {
  border-top: 1px solid var(--hairline);
  padding: var(--space-3) 0;
}
details.gem:last-of-type {
  border-bottom: 1px solid var(--hairline);
}

details.gem > summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-3);
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.25rem;
  color: var(--ink);
  transition: color 120ms ease;
}
details.gem > summary::-webkit-details-marker { display: none; }
details.gem > summary::after {
  content: '+';
  font-family: var(--sans);
  font-style: normal;
  font-size: 1.2rem;
  color: var(--brass);
  line-height: 1;
}
details.gem[open] > summary::after {
  content: '\2212'; /* minus sign */
}
details.gem > summary:hover {
  color: var(--brass-deep);
}

.gem-body {
  padding-top: var(--space-3);
  color: var(--ink-soft);
}
.gem-body p:last-child {
  margin-bottom: 0;
}

.calendar-list {
  list-style: none;
  padding: 0;
  margin: var(--space-3) 0 var(--space-5);
  display: grid;
  grid-template-columns: 1fr;
}
@media (min-width: 600px) {
  .calendar-list { grid-template-columns: repeat(2, 1fr); column-gap: var(--space-5); }
}
.calendar-list li {
  display: grid;
  grid-template-columns: 110px 1fr;
  padding: 0.5em 0;
  border-bottom: 1px solid var(--hairline);
  font-size: 0.95rem;
}
.calendar-list .label {
  font-family: var(--serif);
  font-style: italic;
  color: var(--ink);
}
.calendar-list .value {
  color: var(--ink-soft);
}

/* ---------- Imagery ---------- */
figure {
  margin: var(--space-5) 0;
}
figure img {
  width: 100%;
  filter: saturate(0.78) contrast(0.96);
}
figcaption {
  font-size: 0.8rem;
  color: var(--stone);
  margin-top: 0.6em;
  font-style: italic;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--hairline);
  margin-top: var(--space-5);
  padding: var(--space-4) 0 var(--space-4);
  background: var(--paper);
}
.site-footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  text-align: center;
}
@media (min-width: 720px) {
  .site-footer__inner { grid-template-columns: 1fr 1fr 1fr; text-align: left; align-items: start; }
  .site-footer__inner > div:last-child { text-align: right; }
}
.site-footer .brand {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--ink);
  margin-bottom: 0.3em;
}
.site-footer .meta {
  font-size: 0.85rem;
  color: var(--stone);
  line-height: 1.55;
}
.site-footer a { border-bottom: 0; color: var(--ink); }
.site-footer a:hover { color: var(--brass-deep); }
.site-footer .copyright {
  text-align: center;
  font-size: 0.78rem;
  color: var(--stone);
  letter-spacing: 0.08em;
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--hairline);
}

/* ---------- Utility ---------- */
.center { text-align: center; }
.tight { margin-top: 0; }
.muted { color: var(--stone); }

/* ---------- Mobile spacing scale ----------
   Tightens the large vertical rhythm tokens for narrow viewports so
   the airy desktop feel doesn't become cavernous on a phone. */
@media (max-width: 640px) {
  :root {
    --space-5: 2rem;
    --space-6: 2.75rem;
    --space-7: 3.75rem;
    --space-8: 5rem;
  }
  h2 { margin-top: var(--space-3); }
  h3 { margin-top: var(--space-3); }
  blockquote {
    margin: var(--space-4) 0;
    padding-left: var(--space-2);
    font-size: 1.1rem;
  }
}