/* ============================================================
   CSHR - Culinary Science and Hospitality Research
   Common stylesheet
   ============================================================ */

:root {
  --navy: #1b3a6b;
  --navy-dark: #14294d;
  --navy-light: #2f5288;
  --blue-bar: #3d6298;
  --accent: #c0392b;
  --ink: #1f2733;
  --muted: #5b6573;
  --line: #e2e6ec;
  --bg: #f4f6f9;
  --card: #ffffff;
  --max: 1180px;
  --radius: 6px;
  --shadow: 0 1px 3px rgba(20, 41, 77, .08), 0 8px 24px rgba(20, 41, 77, .06);
  --serif: Georgia, "Times New Roman", "Nanum Myeongjo", serif;
  --sans: "Segoe UI", "Helvetica Neue", "Malgun Gothic", "Apple SD Gothic Neo", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ---------- Header ---------- */
.site-header {
  background: var(--card);
}
.topbar {
  background: var(--navy-dark);
  color: #c7d2e4;
}
.topbar-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  letter-spacing: .3px;
}
.topbar-home {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  transition: .15s;
}
.topbar-home:hover { text-decoration: none; }
.topbar-badge {
  display: inline-flex;
  align-items: center;
  background: #fff;
  color: var(--navy-dark);
  font-family: var(--serif);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .5px;
  padding: 4px 9px;
  border-radius: 4px;
  line-height: 1;
}
.topbar-name {
  color: #d8e1f0;
  font-size: 13px;
  font-weight: 400;
  padding-left: 12px;
  margin-left: 12px;
  border-left: 1px solid rgba(255,255,255,.25);
  transition: .15s;
}
.topbar-home:hover .topbar-name { color: #fff; }
.topbar-issn { color: #9fb0cc; font-size: 12px; }

/* ---------- Nav ---------- */
.main-nav {
  background: var(--blue-bar);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 6px rgba(20,41,77,.18);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
}
.nav-menu {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-wrap: wrap;
}
.nav-menu > li { position: relative; }
.nav-menu > li > a {
  display: block;
  color: #fff;
  padding: 16px 22px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .2px;
}
.nav-menu > li > a:hover,
.nav-menu > li.active > a {
  background: var(--navy);
  text-decoration: none;
}
.ext-arrow { font-size: 11px; opacity: .75; vertical-align: super; }
.dropdown { display: none; position: absolute; top: 100%; left: 0; width: 270px; background: var(--navy); box-shadow: var(--shadow); }
.nav-menu > li:hover .dropdown { display: block; }
.dropdown a { display: block; color: #e9eef6; padding: 11px 18px; font-size: 13.5px; line-height: 1.4; font-weight: 500; border-bottom: 1px solid rgba(255,255,255,.07); white-space: normal; }
.dropdown a:hover { background: var(--navy-light); text-decoration: none; }

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  color: #fff;
  font-size: 24px;
  padding: 14px 16px;
  cursor: pointer;
}
.sub-toggle { display: none; }

/* ---------- Layout ---------- */
.layout {
  max-width: var(--max);
  margin: 28px auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 28px;
  align-items: start;
}
.layout-single {
  max-width: var(--max);
  margin: 28px auto;
  padding: 0 24px;
}
.main-col { min-width: 0; }
.content-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px 44px;
  box-shadow: var(--shadow);
}

/* ---------- Sidebar ---------- */
.sidebar { display: flex; flex-direction: column; gap: 18px; position: sticky; top: 70px; }
.side-nav {
  position: sticky;
  top: 70px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.side-nav-title {
  background: var(--navy);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  padding: 13px 16px;
  letter-spacing: .2px;
}
.side-nav a {
  display: block;
  padding: 12px 16px;
  font-size: 14px;
  color: var(--ink);
  border-top: 1px solid var(--line);
  transition: .12s;
}
.side-nav a:hover { background: #f0f4fa; text-decoration: none; }
.side-nav a.active {
  background: #eef3fa;
  color: var(--navy);
  font-weight: 700;
  box-shadow: inset 3px 0 0 var(--navy);
}.esub-btn {
  display: block;
  background: var(--navy-dark);
  color: #fff;
  text-align: center;
  padding: 18px;
  font-size: 18px;
  font-weight: 700;
  border-radius: var(--radius);
  letter-spacing: .5px;
}
.esub-btn:hover { background: var(--navy); text-decoration: none; }
.link-box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.link-box a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-weight: 700;
  color: var(--navy);
  font-size: 15px;
  transition: .15s;
  text-align: center;
  padding: 12px;
}
.link-box a:hover { border-color: var(--navy-light); background: #f0f4fa; text-decoration: none; }
.link-box a img { max-height: 28px; width: auto; max-width: 90%; object-fit: contain; }

/* ---------- Typography in content ---------- */
.content-card h1 {
  font-family: var(--serif);
  font-size: 30px;
  color: var(--navy);
  margin: 0 0 8px;
  letter-spacing: -.3px;
}
.content-card h1 + .subtitle { color: var(--muted); margin: 0 0 26px; font-size: 15px; }
.content-card h2 {
  font-family: var(--serif);
  font-size: 21px;
  color: var(--navy);
  margin: 34px 0 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}
.content-card h3 { font-size: 17px; color: var(--ink); margin: 22px 0 8px; }
.content-card p { margin: 0 0 14px; }
.content-card ul, .content-card ol { margin: 0 0 16px; padding-left: 22px; }
.content-card li { margin-bottom: 6px; }
.content-card .scope-list { columns: 2; column-gap: 32px; }
.content-card .scope-list li { break-inside: avoid; }

.meta-table { width: 100%; border-collapse: collapse; margin: 8px 0 20px; }
.meta-table th, .meta-table td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); font-size: 15px; vertical-align: top; }
.meta-table th { width: 150px; color: var(--navy); font-weight: 700; }

.ref-example { background: #f7f9fc; border-left: 3px solid var(--navy-light); padding: 12px 16px; margin: 8px 0 16px; font-size: 14px; }

/* cover + meta on home */
.journal-head { display: flex; gap: 30px; align-items: flex-start; margin-bottom: 8px; flex-wrap: wrap; }
.journal-cover {
  width: 190px;
  height: auto;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  flex-shrink: 0;
}
.journal-cover-fallback {
  width: 190px; height: 250px;
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  color: #fff;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center; padding: 20px;
  border-radius: 4px;
  flex-shrink: 0;
}
.journal-cover-fallback .c-ac { font-family: var(--serif); font-size: 46px; font-weight: 700; }
.journal-cover-fallback .c-vol { margin-top: 14px; font-size: 13px; opacity: .85; }
.journal-head-info { flex: 1; min-width: 260px; }
.journal-head-info h1 { margin-top: 0; }

/* editorial board grid */
.board-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 28px; }
.board-member {
  padding: 13px 0;
  border-top: 1px solid var(--line);
  margin-top: -1px;
}
.board-member .bm-name { font-weight: 700; color: var(--ink); }
.board-member .bm-aff { font-size: 13px; color: var(--muted); }
.board-term { color: var(--muted); font-size: 14px; margin: -4px 0 20px; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-dark);
  color: #c7d2e4;
  margin-top: 40px;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 34px 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 28px;
  font-size: 14px;
}
.footer-inner h4 { color: #fff; font-size: 14px; margin: 0 0 12px; letter-spacing: .4px; }
.footer-inner a { color: #c7d2e4; }
.footer-inner a:hover { color: #fff; }
.footer-inner ul { list-style: none; margin: 0; padding: 0; }
.footer-inner li { margin-bottom: 7px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  text-align: center;
  padding: 16px;
  font-size: 13px;
  color: #93a3bd;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; flex-direction: row; flex-wrap: wrap; }
  .sidebar .esub-btn { flex: 1 1 100%; }
  .sidebar .link-box { flex: 1; }
  .side-nav {
    position: static;
    order: -1;
    margin-bottom: 4px;
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  .main-col { order: 0; }
  .side-nav-title { grid-column: 1 / -1; }
  .side-nav a { border-top: 1px solid var(--line); }
  .side-nav a:nth-child(2),
  .side-nav a:nth-child(3) { border-right: 1px solid var(--line); }
  .side-nav a.active { box-shadow: inset 0 3px 0 var(--navy); }
}
@media (max-width: 680px) {
  .nav-inner { flex-wrap: wrap; }
  .nav-toggle { display: block; margin-left: auto; }
  .nav-menu {
    flex-direction: column;
    width: 100%;
    display: none;
  }
  .nav-menu.open { display: flex; }
  .nav-menu > li { width: 100%; }
  .nav-menu > li > a { padding: 14px 18px; border-top: 1px solid rgba(255,255,255,.1); }
  .dropdown { position: static; min-width: 0; box-shadow: none; background: var(--navy-dark); }
  .nav-menu > li:hover .dropdown { display: none; }
  .nav-menu > li.open-sub .dropdown { display: block; }
  .content-card { padding: 26px 20px; }
  .topbar-inner { flex-direction: column; align-items: flex-start; gap: 5px; padding: 9px 16px; }
  .topbar-name { font-size: 12px; padding-left: 10px; margin-left: 10px; }
  .topbar-issn { font-size: 11px; }
  .content-card .scope-list { columns: 1; }
  .board-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .journal-cover, .journal-cover-fallback { margin: 0 auto; }
  .side-nav { grid-template-columns: 1fr; }
  .side-nav a:nth-child(2),
  .side-nav a:nth-child(3) { border-right: 0; }
}