/* ============================================================
   Calvin Letters — Academic Stylesheet
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Cinzel:wght@400;600;700&family=Cinzel+Decorative:wght@400;700&display=swap');

/* ── Reset & base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:     #1e2d5a;
  --navy-dk:  #141e3e;
  --navy-lt:  #2e4070;
  --gold:     #b8922a;
  --gold-lt:  #d4af60;
  --gold-pale:#f5e9c8;
  --cream:    #f8f4ed;
  --parchment:#ede6d4;
  --border:   #c8bfa8;
  --text:     #2a2720;
  --text-mid: #5a5248;
  --text-lt:  #8a7e72;
  --white:    #ffffff;
  --radius:   4px;
  --shadow:   0 2px 12px rgba(30,45,90,.10);
  --shadow-lg:0 6px 30px rgba(30,45,90,.16);
}

html { font-size: 17px; scroll-behavior: smooth; }

body {
  font-family: 'EB Garamond', Georgia, serif;
  background: var(--cream);
  color: var(--text);
  line-height: 1.75;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--navy); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--gold); }

h1,h2,h3,h4 { font-family: 'Cinzel', serif; font-weight: 600; line-height: 1.25; color: var(--navy-dk); }
h1 { font-size: 2rem; }
h2 { font-size: 1.55rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.05rem; }

p { margin-bottom: .9rem; }
em { font-style: italic; }

/* ── Site Header ──────────────────────────────────────────── */
.site-header {
  background: linear-gradient(135deg, var(--navy-dk) 0%, var(--navy) 60%, var(--navy-lt) 100%);
  color: var(--gold-lt);
  padding: 0;
  border-bottom: 3px solid var(--gold);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 2rem 1.4rem;
}

.site-title {
  font-family: 'Cinzel Decorative', serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--gold-lt);
  text-decoration: none;
  letter-spacing: .04em;
  display: block;
  margin-bottom: .25rem;
}
.site-title:hover { color: var(--white); }

.site-subtitle {
  font-family: 'EB Garamond', serif;
  font-style: italic;
  font-size: 1.05rem;
  color: rgba(212,175,96,.80);
  letter-spacing: .02em;
}

/* ── Navigation ───────────────────────────────────────────── */
.site-nav {
  background: var(--navy-dk);
  border-bottom: 2px solid var(--gold);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
}

.nav-inner a {
  display: inline-block;
  padding: .7rem 1.1rem;
  color: rgba(255,255,255,.75);
  text-decoration: none;
  font-family: 'Cinzel', serif;
  font-size: .78rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  border-bottom: 3px solid transparent;
  transition: color .2s, border-color .2s, background .2s;
}
.nav-inner a:hover,
.nav-inner a.active {
  color: var(--gold-lt);
  border-bottom-color: var(--gold);
  background: rgba(255,255,255,.04);
}

/* ── Main content ─────────────────────────────────────────── */
.site-main {
  flex: 1;
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  padding: 2.5rem 2rem 3rem;
}

.page-header {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--border);
}
.page-header h1 { margin-bottom: .3rem; }
.page-header .subtitle {
  font-style: italic;
  color: var(--text-mid);
  font-size: 1.05rem;
}

/* ── Site Footer ──────────────────────────────────────────── */
.site-footer {
  background: var(--navy-dk);
  color: rgba(255,255,255,.5);
  text-align: center;
  padding: 1.4rem 2rem;
  font-size: .85rem;
  border-top: 2px solid var(--gold);
  font-family: 'Cinzel', serif;
  letter-spacing: .04em;
}
.site-footer a { color: var(--gold-lt); text-decoration: none; }
.site-footer a:hover { color: var(--white); }

/* ── Cards & panels ───────────────────────────────────────── */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem 2rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

/* ── Home page ────────────────────────────────────────────── */
.home-intro {
  max-width: 760px;
  font-size: 1.08rem;
  margin-bottom: 2.5rem;
  line-height: 1.9;
}

.home-collections {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.4rem;
  margin-bottom: 2.5rem;
}

.collection-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-top: 4px solid var(--gold);
  border-radius: var(--radius);
  padding: 1.6rem 1.8rem;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: box-shadow .2s, transform .2s, border-top-color .2s;
  box-shadow: var(--shadow);
}
.collection-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-top-color: var(--navy);
  color: inherit;
}
.collection-card h2 {
  font-size: 1.15rem;
  margin-bottom: .5rem;
  color: var(--navy);
}
.collection-card .count {
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold);
  font-family: 'Cinzel', serif;
  display: block;
  margin-bottom: .3rem;
}
.collection-card p {
  font-size: .95rem;
  color: var(--text-mid);
  font-style: italic;
  margin: 0;
}

.home-stats {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  background: var(--parchment);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 2rem;
  margin-bottom: 2rem;
}
.stat { text-align: center; }
.stat .num { font-family: 'Cinzel', serif; font-size: 1.6rem; color: var(--navy); font-weight: 700; }
.stat .lbl { font-size: .85rem; color: var(--text-mid); font-style: italic; }

/* ── Letter list ──────────────────────────────────────────── */
.list-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.filter-tabs {
  display: flex;
  gap: .3rem;
  flex-wrap: wrap;
}
.filter-tabs a {
  padding: .45rem .9rem;
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: .85rem;
  text-decoration: none;
  color: var(--text-mid);
  background: var(--white);
  font-family: 'Cinzel', serif;
  letter-spacing: .04em;
  transition: background .2s, color .2s, border-color .2s;
}
.filter-tabs a:hover,
.filter-tabs a.active {
  background: var(--navy);
  color: var(--gold-lt);
  border-color: var(--navy);
}

.results-count {
  font-size: .9rem;
  color: var(--text-mid);
  font-style: italic;
}

.letter-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  font-size: .95rem;
}
.letter-table thead {
  background: var(--navy);
  color: var(--gold-lt);
}
.letter-table thead th {
  padding: .85rem 1rem;
  text-align: left;
  font-family: 'Cinzel', serif;
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-weight: 600;
  white-space: nowrap;
}
.letter-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background .15s;
}
.letter-table tbody tr:last-child { border-bottom: none; }
.letter-table tbody tr:hover { background: var(--gold-pale); }
.letter-table td {
  padding: .75rem 1rem;
  vertical-align: top;
  line-height: 1.5;
}
.letter-table td.date-col { white-space: nowrap; color: var(--text-mid); font-size: .9rem; }
.letter-table td.num-col  { color: var(--text-lt); font-size: .85rem; width: 4rem; }
.letter-table td a { text-decoration: none; color: var(--navy); font-weight: 500; }
.letter-table td a:hover { color: var(--gold); text-decoration: underline; }

.badge {
  display: inline-block;
  padding: .15rem .55rem;
  border-radius: 12px;
  font-size: .72rem;
  font-family: 'Cinzel', serif;
  letter-spacing: .05em;
  font-weight: 600;
  white-space: nowrap;
}
.badge-from { background: #dbeafe; color: #1e3a8a; border: 1px solid #93c5fd; }
.badge-to   { background: #dcfce7; color: #14532d; border: 1px solid #86efac; }
.badge-both { background: #fef9c3; color: #713f12; border: 1px solid #fde047; }

/* ── Pagination ───────────────────────────────────────────── */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: .4rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}
.pagination a, .pagination span {
  display: inline-block;
  padding: .45rem .85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: .9rem;
  text-decoration: none;
  color: var(--navy);
  background: var(--white);
  transition: background .15s, color .15s;
}
.pagination a:hover { background: var(--navy); color: var(--gold-lt); border-color: var(--navy); }
.pagination .current { background: var(--navy); color: var(--gold-lt); border-color: var(--navy); font-weight: 700; }
.pagination .ellipsis { border: none; background: none; color: var(--text-lt); }

/* ── Letter detail page ───────────────────────────────────── */

/* Hero inner layout */
.hero-content {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
}
.hero-text { flex: 1; min-width: 0; }

/* Portraits column */
.hero-portraits {
  display: flex;
  align-items: center;
  gap: .9rem;
  flex-shrink: 0;
  padding-top: .2rem;
}

.portrait-wrap {
  text-align: center;
  margin: 0;
  width: 88px;
}

.portrait-wrap img {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  object-fit: cover;
  object-position: top center;
  border: 3px solid var(--gold);
  box-shadow: 0 3px 14px rgba(0,0,0,.35);
  display: block;
}

.portrait-placeholder {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: rgba(255,255,255,.10);
  border: 2px dashed rgba(184,146,42,.45);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Cinzel', serif;
  font-size: 1.4rem;
  color: rgba(212,175,96,.45);
  letter-spacing: .05em;
}

.portrait-name {
  margin-top: .45rem;
  font-size: .72rem;
  color: rgba(212,175,96,.75);
  font-style: italic;
  line-height: 1.3;
  word-break: break-word;
}

.portrait-arrow {
  color: var(--gold);
  font-size: 1.5rem;
  opacity: .7;
  margin-bottom: 1.5rem; /* nudge to align with circle centres */
  flex-shrink: 0;
}

@media (max-width: 650px) {
  .hero-content    { flex-direction: column-reverse; gap: 1rem; }
  .hero-portraits  { justify-content: center; width: 100%; }
}

.letter-hero {
  background: linear-gradient(135deg, var(--navy-dk), var(--navy));
  color: var(--white);
  border-radius: var(--radius);
  padding: 2rem 2.2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-lg);
}
.letter-hero .direction-badge { margin-bottom: .8rem; }
.letter-hero h1 {
  color: var(--gold-lt);
  font-size: 1.5rem;
  margin-bottom: .8rem;
}
.letter-hero .meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: .6rem 1.5rem;
  margin-top: 1rem;
}
.letter-hero .meta-item label {
  display: block;
  font-family: 'Cinzel', serif;
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(212,175,96,.7);
  margin-bottom: .15rem;
}
.letter-hero .meta-item span {
  font-size: 1rem;
  color: var(--white);
}

.detail-section {
  margin-bottom: 1.8rem;
}
.detail-section h3 {
  font-size: 1rem;
  color: var(--navy);
  font-family: 'Cinzel', serif;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: .8rem;
  padding-bottom: .4rem;
  border-bottom: 1px solid var(--border);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: .5rem 1.5rem;
}
.detail-row {
  display: flex;
  flex-direction: column;
  padding: .5rem 0;
  border-bottom: 1px dotted var(--border);
}
.detail-row:last-child { border-bottom: none; }
.detail-label {
  font-family: 'Cinzel', serif;
  font-size: .7rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-lt);
  margin-bottom: .15rem;
}
.detail-value { font-size: .97rem; }

.abstract-box {
  background: var(--parchment);
  border-left: 4px solid var(--gold);
  padding: 1.2rem 1.5rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 1rem;
  line-height: 1.85;
}

.incipit-box {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.4rem;
  font-style: italic;
  font-size: 1rem;
  color: var(--text-mid);
}

.manifestation-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.4rem;
  margin-bottom: .8rem;
  font-size: .93rem;
}
.manifestation-card .mtype {
  display: inline-block;
  background: var(--navy);
  color: var(--gold-lt);
  font-family: 'Cinzel', serif;
  font-size: .68rem;
  letter-spacing: .08em;
  padding: .15rem .5rem;
  border-radius: 3px;
  margin-bottom: .5rem;
}
.manifestation-card .repo { font-weight: 600; }
.manifestation-card .shelf { color: var(--text-mid); font-style: italic; margin-left: .5rem; }

/* ── Search page ──────────────────────────────────────────── */
.search-form {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  margin-bottom: 2rem;
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.2rem 1.5rem;
  margin-bottom: 1.5rem;
}
.form-group { display: flex; flex-direction: column; gap: .35rem; }
.form-group label {
  font-family: 'Cinzel', serif;
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-mid);
}
.form-group input, .form-group select {
  padding: .55rem .8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: 'EB Garamond', serif;
  font-size: 1rem;
  background: var(--cream);
  color: var(--text);
  transition: border-color .2s, box-shadow .2s;
}
.form-group input:focus, .form-group select:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(30,45,90,.12);
}

.btn {
  display: inline-block;
  padding: .6rem 1.6rem;
  border: none;
  border-radius: var(--radius);
  font-family: 'Cinzel', serif;
  font-size: .85rem;
  letter-spacing: .06em;
  cursor: pointer;
  text-decoration: none;
  transition: background .2s, color .2s, box-shadow .2s;
}
.btn-primary {
  background: var(--navy);
  color: var(--gold-lt);
  box-shadow: 0 2px 8px rgba(30,45,90,.2);
}
.btn-primary:hover {
  background: var(--navy-dk);
  color: var(--gold-lt);
  box-shadow: 0 4px 16px rgba(30,45,90,.3);
}
.btn-secondary {
  background: var(--white);
  color: var(--navy);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: var(--cream);
  color: var(--navy);
}
.btn-danger {
  background: #991b1b;
  color: var(--white);
}
.btn-danger:hover { background: #7f1d1d; color: var(--white); }

/* ── Admin page ───────────────────────────────────────────── */
.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--border);
}
.admin-section {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
}
.admin-section h2 {
  font-size: 1.15rem;
  margin-bottom: 1.2rem;
  padding-bottom: .5rem;
  border-bottom: 1px solid var(--border);
}

.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
  text-align: center;
  background: var(--cream);
  transition: border-color .2s, background .2s;
  margin-bottom: 1.2rem;
}
.upload-zone:hover { border-color: var(--navy); background: var(--gold-pale); }
.upload-zone input[type=file] {
  display: block;
  margin: 1rem auto 0;
  font-family: 'EB Garamond', serif;
  font-size: 1rem;
}
.upload-zone .icon { font-size: 2.5rem; display: block; margin-bottom: .5rem; }
.upload-zone p { color: var(--text-mid); font-style: italic; font-size: .95rem; }

.alert {
  padding: 1rem 1.4rem;
  border-radius: var(--radius);
  margin-bottom: 1.2rem;
  font-size: .97rem;
}
.alert-success { background: #dcfce7; border: 1px solid #86efac; color: #14532d; }
.alert-error   { background: #fee2e2; border: 1px solid #fca5a5; color: #7f1d1d; }
.alert-info    { background: #dbeafe; border: 1px solid #93c5fd; color: #1e3a8a; }

/* ── Login form ───────────────────────────────────────────── */
.login-wrap {
  max-width: 420px;
  margin: 4rem auto;
}
.login-wrap h1 { text-align: center; margin-bottom: 1.5rem; }

/* ── Utility ──────────────────────────────────────────────── */
.text-muted { color: var(--text-lt); font-style: italic; }
.text-center { text-align: center; }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: 1rem; }
.back-link {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-family: 'Cinzel', serif;
  font-size: .8rem;
  letter-spacing: .06em;
  text-decoration: none;
  color: var(--text-mid);
  margin-bottom: 1.5rem;
  transition: color .15s;
}
.back-link:hover { color: var(--navy); }
.back-link::before { content: '←'; font-size: 1rem; }

.ornament {
  text-align: center;
  color: var(--gold);
  font-size: 1.4rem;
  letter-spacing: .5em;
  margin: 1.5rem 0;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 700px) {
  html { font-size: 15px; }
  .site-main { padding: 1.5rem 1rem 2rem; }
  .header-inner { padding: 1.2rem 1rem 1rem; }
  .letter-table { font-size: .85rem; }
  .letter-table td, .letter-table th { padding: .55rem .6rem; }
  .letter-hero { padding: 1.4rem 1.2rem; }
  .home-stats { gap: 1rem; justify-content: center; }
  .nav-inner { padding: 0 .5rem; }
  .nav-inner a { padding: .6rem .7rem; font-size: .72rem; }
}

/* ── Date qualifiers ──────────────────────────────────────── */
.date-as-marked { font-style: italic; font-size: .88em; color: var(--text-mid); }

/* ── Home page portrait ───────────────────────────────────── */
.intro-inner {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.calvin-portrait {
  flex: 0 0 auto;
  width: 200px;
  margin: 0;
  text-align: center;
}

.calvin-portrait img {
  width: 200px;
  height: 260px;
  object-fit: cover;
  object-position: top center;
  border: 3px solid var(--border);
  box-shadow: 4px 4px 16px rgba(30,45,90,.18);
  display: block;
}

.calvin-portrait figcaption {
  margin-top: .5rem;
  font-size: .8rem;
  font-style: italic;
  color: var(--text-lt);
}

.intro-text { flex: 1; min-width: 0; }

@media (max-width: 600px) {
  .intro-inner { flex-direction: column; align-items: center; }
  .calvin-portrait { width: 160px; }
  .calvin-portrait img { width: 160px; height: 210px; }
}