/* ==========================================================
   Book Chapter Portal — Main Stylesheet
   Clean, white, journal-style, fast-loading (no external framework)
   ========================================================== */

:root {
  --navy: #0b3d66;
  --navy-dark: #072944;
  --gold: #c8992a;
  --text: #232830;
  --muted: #667085;
  --border: #e6e9ee;
  --bg-soft: #f7f9fb;
  --success: #1a7f47;
  --danger: #c0392b;
  --warning: #b8860b;
  --info: #2563a8;
  --radius: 10px;
  --shadow: 0 2px 10px rgba(11, 61, 102, 0.06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: #ffffff;
  color: var(--text);
  font-family: 'Georgia', 'Times New Roman', serif;
  font-size: 16px;
  line-height: 1.6;
}

body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }

h1, h2, h3, h4 { font-family: 'Georgia', 'Times New Roman', serif; color: var(--navy-dark); line-height: 1.25; }

a { color: var(--navy); text-decoration: none; }
a:hover { color: var(--gold); }

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

.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* ---------- Top bar ---------- */
.topbar {
  background: var(--navy-dark);
  color: #cfe0ee;
  font-size: 13px;
  padding: 6px 0;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; }
.topbar a { color: #cfe0ee; }

/* ---------- Header / Nav ---------- */
header.site-header {
  border-bottom: 1px solid var(--border);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 44px; height: 44px; border-radius: 8px;
  background: linear-gradient(135deg, var(--navy), var(--navy-dark));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 18px; font-family: Georgia, serif;
}
.brand-text .site-title { font-weight: 700; font-size: 19px; color: var(--navy-dark); }
.brand-text .site-tag { font-size: 12px; color: var(--muted); }

nav.main-nav ul { list-style: none; display: flex; gap: 26px; margin: 0; padding: 0; }
nav.main-nav a { font-weight: 600; font-size: 14.5px; color: var(--text); padding: 6px 0; border-bottom: 2px solid transparent; }
nav.main-nav a:hover, nav.main-nav a.active { color: var(--navy); border-bottom-color: var(--gold); }

.nav-actions { display: flex; align-items: center; gap: 10px; }
.nav-toggle { display: none; background: none; border: none; font-size: 26px; cursor: pointer; color: var(--navy-dark); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; padding: 10px 22px; border-radius: 6px; font-weight: 600;
  font-size: 14.5px; cursor: pointer; border: 1px solid transparent; text-align: center;
  transition: all .15s ease;
}
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-dark); color: #fff; }
.btn-gold { background: var(--gold); color: #fff; }
.btn-gold:hover { background: #a97e21; color: #fff; }
.btn-outline { background: transparent; border-color: var(--navy); color: var(--navy); }
.btn-outline:hover { background: var(--navy); color: #fff; }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-block { display: block; width: 100%; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(120deg, var(--navy-dark) 0%, var(--navy) 65%, #145088 100%);
  color: #fff; padding: 64px 0 70px;
}
.hero h1 { color: #fff; font-size: 38px; max-width: 720px; margin-bottom: 14px; }
.hero p.lead { color: #d9e6f2; font-size: 17px; max-width: 620px; margin-bottom: 26px; }
.hero .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 40px; margin-top: 44px; flex-wrap: wrap; }
.hero-stats .stat-num { font-size: 30px; font-weight: 700; color: var(--gold); font-family: Georgia, serif; }
.hero-stats .stat-label { font-size: 13px; color: #cfe0ee; }

/* ---------- Section ---------- */
section.section { padding: 60px 0; }
section.section.alt { background: var(--bg-soft); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 30px; flex-wrap: wrap; gap: 10px;}
.section-head h2 { font-size: 27px; margin: 0; }
.section-head .eyebrow { color: var(--gold); font-weight: 700; letter-spacing: 1px; text-transform: uppercase; font-size: 12.5px; margin-bottom: 6px; display:block; }
.section-head p.desc { color: var(--muted); margin: 8px 0 0; max-width: 600px; }

/* ---------- Category chips ---------- */
.chip-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 30px; }
.chip {
  padding: 8px 16px; border: 1px solid var(--border); border-radius: 30px; font-size: 13.5px;
  font-weight: 600; color: var(--navy); background: #fff;
}
.chip.active, .chip:hover { background: var(--navy); color: #fff; border-color: var(--navy); }

/* ---------- Book grid / cards ---------- */
.book-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 26px; }
.book-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow); transition: transform .15s ease, box-shadow .15s ease;
  display: flex; flex-direction: column;
}
.book-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(11,61,102,0.12); }
.book-cover {
  height: 260px; background: linear-gradient(150deg, #eef2f6, #e3e9ef);
  display: flex; align-items: center; justify-content: center; color: var(--navy);
  font-family: Georgia, serif; font-weight: 700; text-align: center; padding: 16px; font-size: 15px;
  border-bottom: 1px solid var(--border);
}
.book-cover img { width: 100%; height: 100%; object-fit: cover; }
.book-info { padding: 16px 18px; flex: 1; display: flex; flex-direction: column; }
.book-info .cat-tag { font-size: 11px; text-transform: uppercase; letter-spacing: .5px; color: var(--gold); font-weight: 700; margin-bottom: 6px; }
.book-info h3 { font-size: 16.5px; margin: 0 0 8px; }
.book-info .meta { font-size: 12.5px; color: var(--muted); margin-bottom: 12px; }
.book-info .btn { margin-top: auto; }

.badge-open {
  display: inline-block; background: #e7f6ec; color: var(--success); font-size: 11px; font-weight: 700;
  padding: 3px 10px; border-radius: 20px; text-transform: uppercase; letter-spacing: .5px;
}

/* ---------- Status badges (dashboard) ---------- */
.badge { display: inline-block; padding: 4px 12px; font-size: 12px; font-weight: 700; border-radius: 20px; text-transform: capitalize; }
.badge-success { background: #e7f6ec; color: var(--success); }
.badge-danger { background: #fbeaea; color: var(--danger); }
.badge-warning { background: #fdf2df; color: var(--warning); }
.badge-info { background: #e8f1fb; color: var(--info); }
.badge-secondary { background: #eef0f3; color: var(--muted); }

/* ---------- Forms ---------- */
.form-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 36px; max-width: 560px; margin: 0 auto; box-shadow: var(--shadow);
}
.form-card.wide { max-width: 780px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 6px; color: var(--navy-dark); }
.form-group .hint { font-size: 12px; color: var(--muted); margin-top: 4px; }
input[type=text], input[type=email], input[type=password], input[type=date], input[type=file],
select, textarea {
  width: 100%; padding: 11px 13px; border: 1px solid #d8dce3; border-radius: 6px; font-size: 14.5px;
  font-family: inherit; background: #fff; color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--navy); box-shadow: 0 0 0 3px rgba(11,61,102,0.1); }
textarea { resize: vertical; min-height: 110px; }
.form-row { display: flex; gap: 16px; }
.form-row .form-group { flex: 1; }

/* ---------- Alerts ---------- */
.alert { padding: 13px 18px; border-radius: 8px; margin-bottom: 20px; font-size: 14.5px; }
.alert-success { background: #e7f6ec; color: var(--success); border: 1px solid #bfe6cd; }
.alert-error { background: #fbeaea; color: var(--danger); border: 1px solid #f3c6c1; }
.alert-info { background: #e8f1fb; color: var(--info); border: 1px solid #c6dcf3; }

/* ---------- Tables ---------- */
table.data-table { width: 100%; border-collapse: collapse; background: #fff; }
table.data-table th, table.data-table td {
  padding: 12px 14px; border-bottom: 1px solid var(--border); text-align: left; font-size: 14px;
}
table.data-table th { background: var(--bg-soft); color: var(--navy-dark); font-size: 12.5px; text-transform: uppercase; letter-spacing: .4px; }
table.data-table tr:hover td { background: #fafcfe; }

/* ---------- Dashboard layout ---------- */
.dash-wrap { display: grid; grid-template-columns: 230px 1fr; gap: 30px; padding: 40px 0 70px; }
.dash-sidebar { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; height: fit-content; }
.dash-sidebar a { display: block; padding: 10px 14px; border-radius: 6px; font-weight: 600; font-size: 14px; color: var(--text); margin-bottom: 4px; }
.dash-sidebar a.active, .dash-sidebar a:hover { background: var(--bg-soft); color: var(--navy); }
.dash-main { min-height: 400px; }
.card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); margin-bottom: 24px; }
.stat-tiles { display: grid; grid-template-columns: repeat(auto-fit,minmax(160px,1fr)); gap: 16px; margin-bottom: 26px; }
.stat-tile { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.stat-tile .num { font-size: 26px; font-weight: 700; color: var(--navy); }
.stat-tile .label { font-size: 12.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }

/* ---------- Footer ---------- */
footer.site-footer { background: var(--navy-dark); color: #cfe0ee; padding: 50px 0 20px; margin-top: 60px; }
footer.site-footer h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
footer.site-footer a { color: #b9cde0; }
footer.site-footer a:hover { color: var(--gold); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-bottom: 30px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); padding-top: 18px; font-size: 13px; color: #93a9bd; text-align: center; }

/* ---------- Misc ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.small-muted { color: var(--muted); font-size: 13px; }

@media (max-width: 860px) {
  nav.main-nav { display: none; }
  .nav-toggle { display: block; }
  .dash-wrap { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 28px; }
  .form-row { flex-direction: column; gap: 0; }
}

/* Mobile nav drawer */
nav.main-nav.open {
  display: block; position: absolute; top: 100%; left: 0; right: 0; background: #fff;
  border-bottom: 1px solid var(--border); box-shadow: var(--shadow);
}
nav.main-nav.open ul { flex-direction: column; padding: 14px 20px; gap: 4px; }
nav.main-nav.open a { display: block; padding: 10px 0; }