/* ==========================================================
   IEEE ISICAS 2026 — content pages (Keynotes, Transportation,
   Presentation Guidelines). Data comes from the JSON files.
   All rules are scoped under .isx: no clash with css/style.css.
   Same palette/variables as isicas-program.css.
   ========================================================== */
.isx {
  --x-ink: var(--ink, #1f2937);
  --x-muted: var(--muted, #667085);
  --x-blue: var(--ieee-blue, #003f7d);
  --x-blue-dark: var(--ieee-blue-dark, #08245c);
  --x-blue-deep: var(--ieee-blue-deep, #06193f);
  --x-blue-soft: var(--ieee-blue-soft, #eaf3ff);
  --x-gold: var(--gold, #c99a2e);
  --x-gold-light: var(--gold-light, #f4d37a);
  --x-border: var(--border, #d8e0ea);
  font-family: Arial, Helvetica, sans-serif;
  color: var(--x-ink);
  line-height: 1.55;
}
.isx *, .isx *::before, .isx *::after { box-sizing: border-box; }
.isx-wrap { width: min(1080px, calc(100% - 40px)); margin: 0 auto; }
.isx a { color: var(--x-blue); text-underline-offset: 2px; }
.isx a:hover { color: var(--x-blue-deep); }
.isx p { margin: 0 0 0.85em; }
.isx p:last-child { margin-bottom: 0; }
.isx-note { margin-top: 18px; font-size: 0.8rem; color: var(--x-muted); }
.isx-error {
  padding: 18px 20px; background: #fff8e6; border: 1px solid #f1d48c;
  border-left: 5px solid var(--x-gold); border-radius: 14px; color: var(--x-blue-dark);
}

/* ---------- shared: section heading bar (same look as the program day bar) ---------- */
.isx-h2 {
  margin: 0 0 16px;
  padding: 13px 20px;
  background: var(--x-blue-dark);
  color: #fff;
  border-left: 6px solid var(--x-gold);
  border-radius: 14px;
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  scroll-margin-top: 170px;
}
.isx-card {
  background: #fff;
  border: 1px solid var(--x-border);
  border-radius: 14px;
  box-shadow: 0 10px 25px rgba(0, 40, 90, 0.06);
}
.isx-lead {
  margin: 0 0 28px;
  padding: 18px 22px;
  background: var(--x-blue-soft);
  border-left: 5px solid var(--x-gold);
  border-radius: 14px;
  color: var(--x-blue-dark);
  font-size: 1.05rem;
}

/* ---------- link chips (also used for e-mail) ---------- */
.isx-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.isx-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--x-border);
  border-radius: 999px;
  background: #fff;
  color: var(--x-blue-dark) !important;
  font-size: 0.84rem; font-weight: 700; text-decoration: none;
  transition: background .15s, border-color .15s;
}
.isx-chip::after { content: "↗"; font-size: 0.8em; color: var(--x-gold); }
.isx-chip:hover, .isx-chip:focus-visible { background: var(--x-blue-soft); border-color: var(--x-gold); }

/* =================== KEYNOTES =================== */
.isx-speakers { display: grid; gap: 34px; }
.isx-speaker { overflow: hidden; }
.isx-sp-top { display: grid; grid-template-columns: minmax(220px, 320px) 1fr; }
.isx-sp-photo { position: relative; background: var(--x-blue-soft); min-height: 260px; }
.isx-sp-photo img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: 50% 22%; display: block;
}
.isx-sp-photo.isx-noimg::before {
  content: attr(data-initials); position: absolute; inset: 0; display: grid; place-items: center;
  font-size: 3rem; font-weight: 800; color: var(--x-blue);
}
.isx-sp-head {
  padding: 26px 30px;
  background: linear-gradient(135deg, var(--x-blue-deep), var(--x-blue-dark) 60%, var(--x-blue));
  color: #fff;
  display: flex; flex-direction: column; justify-content: center; gap: 4px;
}
.isx-sp-kicker {
  align-self: flex-start;
  margin-bottom: 8px; padding: 3px 12px;
  border-radius: 999px; background: var(--x-gold-light); color: var(--x-blue-deep);
  font-size: 0.72rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
}
.isx-sp-name { margin: 0; font-size: clamp(1.5rem, 3vw, 2.1rem); line-height: 1.15; font-weight: 800; color: #fff; }
.isx-sp-aff { margin: 0; font-size: 0.95rem; color: rgba(255, 255, 255, .82); }
.isx-sp-when {
  margin-top: 10px; font-size: 0.95rem; font-weight: 700; color: var(--x-gold-light);
}
.isx-sp-talk {
  margin: 14px 0 0; padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, .22);
  font-size: clamp(1.05rem, 1.8vw, 1.3rem); line-height: 1.3; font-weight: 700; color: #fff;
}
.isx-sp-body { padding: 26px 30px 30px; display: grid; gap: 22px; }
.isx-sp-body h3 {
  margin: 0 0 10px; font-size: 0.8rem; font-weight: 800; letter-spacing: .1em;
  text-transform: uppercase; color: var(--x-blue);
  display: flex; align-items: center; gap: 10px;
}
.isx-sp-body h3::after { content: ""; flex: 1; height: 1px; background: var(--x-border); }
.isx-sp-bio { padding: 18px 20px; background: var(--x-blue-soft); border-radius: 12px; font-size: 0.95rem; }
.isx-sp-bio h3 { margin-top: 0; }
.isx-ref { font-size: 0.85rem; color: var(--x-muted); padding-left: 14px; border-left: 3px solid var(--x-gold-light); }

/* =================== TRANSPORTATION =================== */
.isx-jump {
  position: sticky; top: 86px; z-index: 40;
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
  padding: 10px 14px; margin-bottom: 26px;
  background: rgba(255, 255, 255, .96); border: 1px solid var(--x-border); border-radius: 14px;
  box-shadow: 0 10px 25px rgba(0, 40, 90, .06); backdrop-filter: blur(6px);
}
.isx-jump a {
  padding: 7px 14px; border-radius: 999px; background: var(--x-blue-dark); color: #fff;
  font-size: 0.86rem; font-weight: 800; text-decoration: none;
}
.isx-jump a:hover, .isx-jump a:focus-visible { background: var(--x-gold); color: var(--x-blue-deep); }
.isx-section { margin-bottom: 38px; }
.isx-section > .isx-intro { margin: 0 0 18px; font-size: 1rem; }
.isx-items { display: grid; gap: 22px; }
.isx-item { padding: 22px 24px 24px; border-top: 4px solid var(--x-gold); }
.isx-item-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.isx-item-head h3 { margin: 0; font-size: 1.25rem; color: var(--x-blue-dark); }
.isx-code {
  padding: 3px 11px; border-radius: 8px; background: var(--x-blue-dark); color: #fff;
  font-size: 0.85rem; font-weight: 800; letter-spacing: .08em;
}
.isx-modes { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; margin-top: 18px; }
.isx-mode { padding: 16px 18px; background: #f7f9fc; border: 1px solid var(--x-border); border-radius: 12px; }
.isx-mode h4 { margin: 0 0 8px; display: flex; align-items: center; gap: 10px; font-size: 1rem; color: var(--x-blue-dark); }
.isx-ico {
  flex: none; width: 34px; height: 34px; display: grid; place-items: center;
  border-radius: 10px; background: var(--x-blue-soft); color: var(--x-blue);
}
.isx-ico svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.isx-mode p { font-size: 0.93rem; }

/* =================== GUIDELINES =================== */
.isx-guide { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 22px; }
.isx-gcard { padding: 22px 24px 24px; position: relative; }
.isx-gcard h2 {
  margin: 0 0 12px; display: flex; align-items: center; gap: 12px;
  font-size: 1.15rem; color: var(--x-blue-dark);
}
.isx-num {
  flex: none; width: 32px; height: 32px; display: grid; place-items: center;
  border-radius: 50%; background: var(--x-gold); color: var(--x-blue-deep);
  font-size: 0.95rem; font-weight: 800;
}
.isx-gcard ul { margin: 0 0 .85em; padding-left: 0; list-style: none; display: grid; gap: 6px; }
.isx-gcard li {
  padding: 8px 12px 8px 36px; position: relative;
  background: var(--x-blue-soft); border-radius: 10px; font-weight: 700; color: var(--x-blue-dark);
}
.isx-gcard li::before {
  content: ""; position: absolute; left: 14px; top: 50%; width: 9px; height: 9px;
  margin-top: -5px; border-radius: 50%; background: var(--x-gold);
}
.isx-wide { grid-column: 1 / -1; }

@media (max-width: 900px) {
  .isx-wrap { width: calc(100% - 22px); }
  .isx-jump { top: 70px; }
  .isx-sp-top { grid-template-columns: 1fr; }
  .isx-sp-photo { min-height: 0; aspect-ratio: 4 / 3; }
  .isx-sp-head, .isx-sp-body { padding-left: 20px; padding-right: 20px; }
  .isx-item { padding: 18px 16px 20px; }
}
@media print {
  .isx-jump { display: none; }
  .isx-card { box-shadow: none; break-inside: avoid; }
  .isx-h2, .isx-sp-head, .isx-code, .isx-num { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}