/*
Theme Name: Okla Strata
Theme URI: https://example.com/okla-strata
Author: Custom Build
Description: A rustic archaeology theme built around Oklahoma sites — red-dirt strata dividers, Smithsonian trinomial section labels, and customizable Home, Contact, and Calendar pages.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: okla-strata
Tags: custom-menu, custom-logo, featured-images, two-columns
*/

/* ============================================================
   TOKENS — Oklahoma dig-site palette
   ============================================================ */
:root {
  --dirt: #7a2e1d;        /* red-dirt iron oxide */
  --dirt-deep: #5c2115;
  --parchment: #efe6d4;   /* bone / shell */
  --parchment-dim: #e4d7bf;
  --charcoal: #2a2119;    /* burned stratum */
  --ochre: #b08d3f;       /* prairie ochre */
  --copper: #4e6b51;      /* trade-copper patina */
  --ink: #33291f;

  --font-display: 'Bevan', 'Georgia', serif;
  --font-body: 'Lora', 'Georgia', serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  --measure: 68ch;
  --pad: clamp(1.25rem, 4vw, 3rem);
}

/* ============================================================
   BASE
   ============================================================ */
* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--parchment);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-align: center;
}

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

a { color: var(--dirt); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--dirt-deep); }
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--ochre);
  outline-offset: 2px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.15;
  color: var(--charcoal);
  letter-spacing: 0.01em;
}
h1 { font-size: clamp(2.2rem, 6vw, 4rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.15rem, 2.2vw, 1.5rem); }

.wrap { max-width: 1300px; margin: 0 auto; padding-left: var(--pad); padding-right: var(--pad); }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--charcoal); color: var(--parchment);
  padding: 0.6rem 1rem; z-index: 100; font-family: var(--font-mono);
}
.skip-link:focus { left: 0; }

/* ============================================================
   TRINOMIAL EYEBROW — catalog-tag section labels
   ============================================================ */
.trinomial {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dirt);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
}
.trinomial::before {
  content: "";
  width: 2.2rem; height: 2px;
  background: var(--dirt);
}

/* ============================================================
   STRATA DIVIDER — the signature element.
   Four soil layers as an excavation profile between sections.
   ============================================================ */
.strata {
  height: 26px;
  border: 0;
  margin: 0;
  background:
    linear-gradient(var(--ochre), var(--ochre)) 0 0 / 100% 5px no-repeat,
    linear-gradient(var(--dirt), var(--dirt)) 0 5px / 100% 9px no-repeat,
    linear-gradient(var(--copper), var(--copper)) 0 14px / 100% 4px no-repeat,
    linear-gradient(var(--charcoal), var(--charcoal)) 0 18px / 100% 8px no-repeat;
}
.strata--thin { height: 10px; background:
    linear-gradient(var(--ochre), var(--ochre)) 0 0 / 100% 3px no-repeat,
    linear-gradient(var(--dirt), var(--dirt)) 0 3px / 100% 4px no-repeat,
    linear-gradient(var(--charcoal), var(--charcoal)) 0 7px / 100% 3px no-repeat;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  background: var(--charcoal);
  color: var(--parchment);
}
.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.1rem;
  padding-bottom: 1.1rem;
}
.site-brand { display: flex; align-items: baseline; gap: 0.8rem; }
.site-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin: 0;
}
.site-title a { color: var(--parchment); text-decoration: none; }
.site-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ochre);
}
.site-nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: 1.4rem; margin: 0; padding: 0; }
.site-nav a {
  color: var(--parchment);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
}
.site-nav a:hover,
.site-nav .current-menu-item > a { border-bottom-color: var(--ochre); color: var(--parchment); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  background: var(--charcoal);
  color: var(--parchment);
  position: relative;
  overflow: hidden;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
  text-align: left;
  padding-top: clamp(3rem, 8vw, 6rem);
  padding-bottom: clamp(3rem, 8vw, 6rem);
}
.hero h1 { color: var(--parchment); margin: 0 0 1rem; }
.hero h1 em { font-style: normal; color: var(--ochre); }
.hero p.lede { font-size: clamp(1.05rem, 2vw, 1.25rem); max-width: 34rem; margin: 0 auto 2rem; color: var(--parchment-dim); }
.hero .trinomial { color: var(--ochre); }
.hero .trinomial::before { background: var(--ochre); }

.hero__figure { position: relative; }
.hero__figure img {
  border: 6px solid var(--parchment);
  box-shadow: 12px 12px 0 var(--dirt);
}
.hero__figure figcaption {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ochre);
  margin-top: 1.2rem;
}

.btn {
  display: inline-block;
  background: var(--dirt);
  color: var(--parchment);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.9rem 1.6rem;
  border: 2px solid var(--dirt);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.btn:hover { background: transparent; color: var(--dirt); }
.hero .btn:hover { color: var(--ochre); border-color: var(--ochre); }
.btn--ghost { background: transparent; color: var(--dirt); }
.btn--ghost:hover { background: var(--dirt); color: var(--parchment); }

/* ============================================================
   HOME SECTIONS
   ============================================================ */
.section { padding-top: clamp(3rem, 7vw, 5.5rem); padding-bottom: clamp(3rem, 7vw, 5.5rem); }
.section--dim { background: var(--parchment-dim); }
.section__intro { max-width: var(--measure); margin-left: auto; margin-right: auto; text-align: center; }
.section__intro h2 { margin-top: 0; }

/* ============================================================
   PAGE HEADERS (interior pages)
   ============================================================ */
.page-head { background: var(--charcoal); color: var(--parchment); text-align: center; }
.page-head .wrap { padding-top: clamp(2.5rem, 6vw, 4rem); padding-bottom: clamp(2.5rem, 6vw, 4rem); }
.page-head h1 { color: var(--parchment); margin: 0; }
.page-head .trinomial { color: var(--ochre); }
.page-head .trinomial::before { background: var(--ochre); }

.entry-content { max-width: var(--measure); margin-left: auto; margin-right: auto; text-align: center; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2rem, 5vw, 4rem);
}
.contact-meta dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dirt);
  margin-top: 1.4rem;
}
.contact-meta dd { margin: 0.25rem 0 0; font-size: 1.05rem; }

.contact-form { text-align: left; }
.contact-form label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin: 1.2rem 0 0.4rem;
}
.contact-meta { text-align: center; }
.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 2px solid var(--charcoal);
  background: #fffdf7;
  padding: 0.8rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
}
.contact-form textarea { min-height: 9rem; resize: vertical; }
.contact-form .btn { margin-top: 1.5rem; }
.form-notice {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.9rem 1.1rem;
  border: 2px solid var(--copper);
  background: #eef2ec;
  margin-bottom: 1.5rem;
}
.form-notice--error { border-color: var(--dirt); background: #f7e9e4; }

/* ============================================================
   CALENDAR
   ============================================================ */
.cal-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; margin: 0 0 1.2rem;
}
.cal-toolbar h2 { margin: 0; }
.cal-nav { font-family: var(--font-mono); font-size: 0.85rem; letter-spacing: 0.1em; text-transform: uppercase; }
.cal-nav a { margin-left: 1rem; }

table.dig-calendar {
  width: 100%;
  border-collapse: collapse;
  background: var(--parchment);
  border: 2px solid var(--charcoal);
}
.dig-calendar th {
  background: var(--charcoal);
  color: var(--parchment);
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.6rem 0.4rem;
  text-align: center;
}
.dig-calendar td {
  border: 1px solid #cbbc9d;
  vertical-align: top;
  height: 6.2rem;
  padding: 0.4rem;
  width: 14.28%;
  text-align: left;
}
.dig-calendar td.is-other { background: var(--parchment-dim); }
.dig-calendar .daynum {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink);
}
.dig-calendar td.is-today .daynum {
  background: var(--dirt); color: var(--parchment);
  padding: 0.1rem 0.4rem; display: inline-block;
}
.cal-event {
  display: block;
  background: var(--copper);
  color: var(--parchment);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  line-height: 1.35;
  padding: 0.25rem 0.35rem;
  margin-top: 0.35rem;
  border-left: 4px solid var(--ochre);
}
.cal-event:hover { background: var(--charcoal); color: var(--parchment); }

.event-list { list-style: none; margin: 2.5rem auto 0; padding: 0; }
.event-list li {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 1.2rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid #cbbc9d;
  text-align: left;
}
.event-list time {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dirt);
}
.event-list h3 { margin: 0 0 0.3rem; font-size: 1.15rem; }
.event-list p { margin: 0; font-size: 0.95rem; }

/* ============================================================
   BLOG / FALLBACK
   ============================================================ */
.post-list article { padding: 2rem 0; border-bottom: 1px solid #cbbc9d; max-width: var(--measure); margin-left: auto; margin-right: auto; text-align: center; }
.post-list h2 { margin: 0.2rem 0 0.5rem; }
.post-list h2 a { color: var(--charcoal); text-decoration: none; }
.post-list h2 a:hover { color: var(--dirt); }
.post-meta { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--dirt); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { background: var(--charcoal); color: var(--parchment-dim); text-align: center; }
.site-footer .wrap {
  padding-top: 2.5rem; padding-bottom: 2.5rem;
  display: flex; flex-wrap: wrap; justify-content: center; gap: 1.5rem;
}
.site-footer a { color: var(--ochre); }
.site-footer .fine {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 820px) {
  .hero__grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .dig-calendar td { height: 4.6rem; padding: 0.25rem; }
  .cal-event { font-size: 0.6rem; }
  .event-list li { grid-template-columns: 1fr; gap: 0.3rem; }
}