:root {
  --navy: #0b3d5c;
  --navy-deep: #072a40;
  --teal: #0e7490;
  --teal-bright: #0891b2;
  --gold: #e8a317;
  --gold-dark: #c4840c;
  --sand: #f4f1ea;
  --paper: #ffffff;
  --ink: #1c2a33;
  --muted: #5b6b75;
  --line: #d7e0e6;
  --ok: #0f766e;
  --warn: #b45309;
  --danger: #b91c1c;
  --shadow: 0 10px 30px rgba(7, 42, 64, 0.08);
  --radius: 14px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Source Sans 3", "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--ink);
  background: #f7fafb;
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: var(--teal); text-decoration: none; }
a:hover { color: var(--navy); }
.wrap { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }

.topbar {
  background: var(--navy);
  color: #d7e8f0;
  font-size: 13px;
  padding: 8px 0 0;
}
.topbar .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-bottom: 8px; }
.topbar a { color: #fff; }
.issn-bar {
  background: var(--navy-deep);
  color: #e8f3f8;
  font-size: 13px;
  padding: 8px 0 10px;
  border-top: 1px solid #1a5470;
}
.issn-bar .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.issn-bar b { color: #fff; font-family: ui-monospace, Consolas, monospace; letter-spacing: .14em; }
.popular-item { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.popular-item .n { flex: 0 0 28px; height: 28px; border-radius: 50%; background: var(--navy); color: #fff; display: grid; place-items: center; font-size: 12px; font-weight: 700; }
.popular-item h4 { margin: 0 0 2px; font-size: 15px; color: var(--navy); }
.popular-item p { margin: 0; font-size: 13px; color: var(--muted); }
.brand-row {
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.brand-row .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--navy);
}
.brand img {
  width: 72px;
  height: 72px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--navy);
  background: #fff;
}
.brand h1 {
  margin: 0;
  font-size: 26px;
  letter-spacing: .2px;
  font-family: "Merriweather", Georgia, serif;
}
.brand p { margin: 2px 0 0; font-size: 13px; color: var(--muted); letter-spacing: .08em; text-transform: uppercase; }
.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--gold);
  color: #1a1408 !important;
  font-weight: 700;
  border: 0;
  border-radius: 8px;
  padding: 11px 18px;
  cursor: pointer;
}
.cta.navy { background: var(--navy); color: #fff !important; }
.cta.ghost { background: transparent; color: var(--navy) !important; border: 1.5px solid var(--navy); }
.cta:hover { filter: brightness(1.05); }

nav.main {
  background: var(--teal);
}
nav.main .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
}
nav.main a {
  color: #fff;
  padding: 12px 12px;
  font-size: 14px;
  font-weight: 600;
}
nav.main a:hover, nav.main a.active { background: rgba(0,0,0,.18); color: #fff; }

.promo {
  background: linear-gradient(90deg, #7c2d12, #b45309);
  color: #fff;
  text-align: center;
  padding: 10px 16px;
  font-weight: 700;
}
.promo span { opacity: .9; font-weight: 500; }

.hero {
  position: relative;
  min-height: 420px;
  background: #083044 center/cover no-repeat;
  color: #fff;
  display: grid;
  align-items: end;
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(7,42,64,.25), rgba(7,42,64,.78));
}
.hero .wrap { position: relative; z-index: 1; padding: 70px 0 42px; }
.hero h2 {
  font-family: "Merriweather", Georgia, serif;
  font-size: clamp(28px, 4vw, 44px);
  margin: 0 0 10px;
  max-width: 16ch;
}
.hero p { max-width: 62ch; font-size: 18px; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: -28px;
  position: relative;
  z-index: 2;
}
.stat {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px 18px;
}
.stat b { display: block; font-size: 22px; color: var(--navy); }
.stat span { color: var(--muted); font-size: 13px; }

.section { padding: 48px 0; }
.section h2, .page-title {
  font-family: "Merriweather", Georgia, serif;
  color: var(--navy);
  margin: 0 0 8px;
}
.lede { color: var(--muted); max-width: 70ch; margin-bottom: 22px; }
.grid-2 { display: grid; grid-template-columns: 1.4fr .9fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.card h3 { margin: 0 0 8px; color: var(--navy); font-size: 18px; }
.card.subject { min-height: 130px; transition: transform .15s ease, border-color .15s; }
.card.subject:hover { transform: translateY(-3px); border-color: var(--teal); }
.tag {
  display: inline-block;
  background: #e0f2fe;
  color: var(--navy);
  border-radius: 999px;
  padding: 2px 9px;
  font-size: 12px;
  font-weight: 700;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  overflow: hidden;
  border-radius: 12px;
}
th, td { padding: 11px 12px; text-align: left; border-bottom: 1px solid var(--line); font-size: 14px; }
th { background: var(--navy); color: #fff; font-weight: 600; }
tr:nth-child(even) td { background: #f8fbfc; }
.strike { text-decoration: line-through; color: #8a97a0; }
.free { color: var(--ok); font-weight: 800; }

.page-hero {
  background: var(--navy-deep);
  color: #fff;
  padding: 28px 0;
}
.page-hero h2 { color: #fff; margin: 0; font-family: "Merriweather", Georgia, serif; }
.page-hero p { margin: 6px 0 0; color: #c9dde8; }

form label { display: block; font-weight: 700; margin: 12px 0 5px; font-size: 14px; }
input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #c5d3db;
  border-radius: 8px;
  font: inherit;
  background: #fff;
}
textarea { min-height: 120px; resize: vertical; }
.hint { font-size: 12px; color: var(--muted); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.notice {
  background: #fff7ed;
  border: 1px solid #fdba74;
  color: #9a3412;
  padding: 12px 14px;
  border-radius: 10px;
  margin: 14px 0;
}
.okbox {
  background: #ecfdf5;
  border: 1px solid #6ee7b7;
  color: #065f46;
  padding: 12px 14px;
  border-radius: 10px;
}

footer {
  background: var(--navy-deep);
  color: #c9dde8;
  padding: 36px 0 18px;
  margin-top: 40px;
}
footer h4 { color: #fff; margin: 0 0 10px; }
footer a { color: #d7eef7; }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 20px; }
.legal { border-top: 1px solid #1d4a63; margin-top: 22px; padding-top: 14px; font-size: 12px; color: #9fb6c3; }

.toc a { display: block; padding: 6px 0; border-bottom: 1px dashed var(--line); }
.article-card { display: grid; grid-template-columns: 1fr 220px; gap: 16px; align-items: start; }
.kicker { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--teal); font-weight: 700; }

.mobile-toggle { display: none; background: var(--navy); color: #fff; border: 0; padding: 8px 10px; border-radius: 6px; }

@media (max-width: 900px) {
  .stats, .grid-2, .grid-3, .grid-4, .foot-grid, .article-card, .form-row { grid-template-columns: 1fr; }
  .brand h1 { font-size: 18px; }
  .brand img { width: 54px; height: 54px; }
  .mobile-toggle { display: inline-flex; }
  nav.main .wrap { display: none; }
  nav.main.open .wrap { display: flex; flex-direction: column; }
}

/* Author portal additions */
.status-pill {
  display: inline-block;
  border: 1px solid #b8d2dc;
  border-radius: 999px;
  padding: 3px 10px;
  background: #eef7fa;
  color: var(--navy);
  font-size: 12px;
  font-weight: 700;
}
.table-wrap { width: 100%; overflow-x: auto; }
.table-wrap table { min-width: 640px; }
form button { cursor: pointer; }
input:disabled { background: #f3f6f8; color: #51616b; }