/*
Theme Name: ICPHS 2026
Theme URI: http://www.icphs2026.science.swu.ac.th
Author: ICPHS 2026 Organizing Committee
Author URI: http://www.icphs2026.science.swu.ac.th
Description: Official theme for the 6th International Conference on Photonics Solutions (ICPHS 2026). Bangkok, Thailand · 25–27 November 2026. Organized by IEEE Photonics Society Thailand and Srinakharinwirot University. Features customizable conference dates and links via the WordPress Customizer.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 7.4
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: icphs2026
Tags: conference, academic, photonics, dark, one-page, custom-menu, custom-logo, threaded-comments
*/

:root {
  --bg: #0a0b10;
  --bg-elev: #12141c;
  --surface: #1a1d28;
  --line: #2a2e3d;
  --line-soft: #1f2230;
  --ink: #f0ece2;
  --ink-dim: #a09a8c;
  --ink-low: #6a6557;
  --accent: #ff3a3a;
  --accent-soft: #ff6b4a;
  --gold: #ffd166;
  --gold-bg: rgba(255, 209, 102, 0.12);
  --violet: #7c6fd4;
  --violet-bg: rgba(124, 111, 212, 0.12);
  --spectrum-1: #ff3a3a;
  --spectrum-2: #ff8c42;
  --spectrum-3: #ffd166;
  --spectrum-4: #4ecdc4;
  --spectrum-5: #6a5acd;
  --max-w: 1280px;
  --gutter: clamp(20px, 4vw, 56px);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: 'cv11', 'ss01', 'ss03';
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse 80% 60% at 80% 0%, rgba(255, 58, 58, 0.08), transparent 60%),
    radial-gradient(ellipse 60% 50% at 0% 40%, rgba(106, 90, 205, 0.05), transparent 60%);
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--gutter); }

.display {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 0.95;
}

.eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow-muted {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

a { color: inherit; text-decoration: none; transition: color .2s ease; }

/* NAV */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  padding: 18px 0;
  background: rgba(10, 11, 16, 0.7);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border-bottom: 1px solid var(--line-soft);
}
.site-nav .container { display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.site-nav .brand {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 22px;
  letter-spacing: -0.01em;
}
.site-nav .brand span { color: var(--accent); }
.site-nav ul.primary-menu,
.site-nav .menu {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
}
.site-nav ul.primary-menu li,
.site-nav .menu li { list-style: none; }
.site-nav ul.primary-menu a,
.site-nav .menu a {
  font-size: 13px;
  color: var(--ink-dim);
  transition: color .2s ease;
}
.site-nav ul.primary-menu a:hover,
.site-nav .menu a:hover { color: var(--ink); }
.site-nav .cta {
  padding: 9px 18px;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  border-radius: 999px;
  transition: all .2s ease;
  white-space: nowrap;
}
.site-nav .cta:hover { background: #ff5050; transform: translateY(-1px); }

@media (max-width: 880px) {
  .site-nav ul.primary-menu,
  .site-nav .menu { display: none; }
  .site-nav .cta { padding: 8px 14px; font-size: 12px; }
}

/* HERO */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 0 100px;
  overflow: hidden;
}

.beams { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.beam {
  position: absolute;
  top: 50%; left: 50%;
  width: 2px;
  height: 140vh;
  transform-origin: top center;
  opacity: 0;
  animation: beam-rise 2s ease-out forwards;
}
.beam::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent, var(--c, var(--accent)), transparent);
  box-shadow: 0 0 24px 4px var(--c, var(--accent));
  opacity: 0.5;
}
.beam-1 { --c: #ff3a3a; transform: translate(-50%, -50%) rotate(15deg); animation-delay: 0.2s; }
.beam-2 { --c: #ff6b4a; transform: translate(-50%, -50%) rotate(35deg); animation-delay: 0.4s; }
.beam-3 { --c: #ffd166; transform: translate(-50%, -50%) rotate(-25deg); animation-delay: 0.3s; }
.beam-4 { --c: #4ecdc4; transform: translate(-50%, -50%) rotate(-50deg); animation-delay: 0.6s; }
.beam-5 { --c: #6a5acd; transform: translate(-50%, -50%) rotate(60deg); animation-delay: 0.5s; }
.beam-6 { --c: #ff3a3a; transform: translate(-50%, -50%) rotate(-10deg); animation-delay: 0.7s; }

@keyframes beam-rise {
  0% { opacity: 0; height: 0; }
  100% { opacity: 1; height: 140vh; }
}

.prism-source {
  position: absolute;
  top: 50%; left: 50%;
  width: 14px; height: 14px;
  transform: translate(-50%, -50%);
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 0 20px 6px #fff, 0 0 60px 20px rgba(255, 100, 100, 0.6);
  opacity: 0;
  animation: pulse 3s ease-in-out infinite, fade-in 1s ease 1.5s forwards;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 20px 6px #fff, 0 0 60px 20px rgba(255, 100, 100, 0.5); }
  50% { box-shadow: 0 0 30px 8px #fff, 0 0 100px 30px rgba(255, 100, 100, 0.8); }
}
@keyframes fade-in { to { opacity: 1; } }

.hero-content { position: relative; z-index: 2; max-width: 900px; }

.hero-meta {
  display: flex; gap: 24px; align-items: center; flex-wrap: wrap;
  margin-bottom: 36px;
  opacity: 0;
  animation: rise 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) 0.2s forwards;
}
.hero-meta .pill {
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-dim);
}
.hero-meta .dot { width: 6px; height: 6px; background: var(--accent); border-radius: 50%; box-shadow: 0 0 12px var(--accent); }

h1.hero-title {
  font-size: clamp(48px, 8vw, 84px);
  margin: 0 0 24px;
  opacity: 0;
  animation: rise 1s cubic-bezier(0.2, 0.8, 0.2, 1) 0.4s forwards;
}
h1.hero-title em {
  font-weight: 400;
  font-style: italic;
  font-weight: 300;
  background: linear-gradient(110deg, var(--spectrum-1) 0%, var(--spectrum-2) 30%, var(--spectrum-3) 50%, var(--spectrum-4) 70%, var(--spectrum-5) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.hero-subtitle {
  font-family: 'Inter', sans-serif;
  font-weight: 350;
  font-size: clamp(20px, 2.4vw, 30px);
  line-height: 1.3;
  color: var(--ink-dim);
  max-width: 720px;
  margin: 0 0 48px;
  opacity: 0;
  animation: rise 1s cubic-bezier(0.2, 0.8, 0.2, 1) 0.6s forwards;
}

.hero-info {
  display: flex; flex-wrap: wrap; gap: 48px;
  margin-bottom: 56px;
  opacity: 0;
  animation: rise 1s cubic-bezier(0.2, 0.8, 0.2, 1) 0.8s forwards;
}
.info-block .label {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-low);
  margin-bottom: 8px;
}
.info-block .value {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 22px;
  line-height: 1.3;
}

.hero-cta {
  display: flex; gap: 16px; flex-wrap: wrap;
  opacity: 0;
  animation: rise 1s cubic-bezier(0.2, 0.8, 0.2, 1) 1s forwards;
}
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 28px;
  border-radius: 999px;
  font-size: 14px; font-weight: 500;
  letter-spacing: 0.01em;
  transition: all .25s cubic-bezier(0.2, 0.8, 0.2, 1);
  cursor: pointer; border: none;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #ff5050; transform: translateY(-2px); box-shadow: 0 12px 32px -8px rgba(255, 58, 58, 0.6); }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--ink); background: rgba(255,255,255,0.03); }
.btn .arrow { transition: transform .25s ease; }
.btn:hover .arrow { transform: translateX(4px); }

@keyframes rise {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

section.icphs-section { padding: 120px 0; position: relative; }
@media (max-width: 720px) { section.icphs-section { padding: 80px 0; } }

.section-head {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 80px;
  margin-bottom: 72px;
  align-items: start;
}
@media (max-width: 880px) {
  .section-head { grid-template-columns: 1fr; gap: 24px; margin-bottom: 48px; }
}
.section-head h2 {
  font-family: 'Inter', sans-serif;
  font-weight: 350;
  font-size: clamp(40px, 6vw, 76px);
  line-height: 1;
  letter-spacing: -0.02em;
  margin: 0;
}
.section-head h2 em {
  font-style: italic;
  font-weight: 300;
  color: var(--accent);
}
.section-head .index {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ink-low);
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.welcome-body {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 80px;
  align-items: start;
}
@media (max-width: 880px) {
  .welcome-body { grid-template-columns: 1fr; gap: 32px; }
}
.welcome-body p {
  font-family: 'Inter', sans-serif;
  font-weight: 350;
  font-size: clamp(20px, 2.2vw, 26px);
  line-height: 1.5;
  color: var(--ink);
  margin: 0 0 24px;
}
.welcome-body p:last-child {
  color: var(--ink-dim);
  font-size: clamp(16px, 1.6vw, 19px);
  font-family: 'Inter', sans-serif;
  font-weight: 300;
}
.welcome-meta {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ink-low);
  padding-top: 12px;
}

/* Dates */
.dates-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
@media (max-width: 880px) { .dates-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .dates-grid { grid-template-columns: 1fr; } }

.date-cell {
  padding: 36px 28px;
  border-right: 1px solid var(--line);
  position: relative;
  transition: background .3s ease;
}
.date-cell:last-child { border-right: none; }
.date-cell:hover { background: var(--bg-elev); }
.date-cell .num { font-family: 'Inter', sans-serif; font-size: 11px; color: var(--ink-low); margin-bottom: 16px; }
.date-cell .label { font-size: 13px; color: var(--ink-dim); margin-bottom: 20px; line-height: 1.4; }
.date-cell .date {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 24px;
  line-height: 1.1;
}
.date-cell.highlight .date { color: var(--accent); }
.date-cell.highlight::before {
  content: '';
  position: absolute;
  top: -1px; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
}
@media (max-width: 880px) {
  .date-cell { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .date-cell:nth-child(2n) { border-right: none; }
}
@media (max-width: 520px) {
  .date-cell { border-right: none; }
}

/* Topics */
.section-intro {
  max-width: 700px;
  color: var(--ink-dim);
  margin: -32px 0 48px;
  font-size: 16px;
}

.topics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
@media (max-width: 880px) { .topics-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .topics-grid { grid-template-columns: 1fr; } }

.topic {
  padding: 32px 28px;
  background: var(--bg);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all .3s ease;
  min-height: 110px;
}
.topic:hover {
  background: var(--bg-elev);
  transform: scale(1.02);
  z-index: 2;
  position: relative;
}
.topic .num { font-family: 'Inter', sans-serif; font-size: 11px; color: var(--ink-low); min-width: 28px; }
.topic .name {
  font-family: 'Inter', sans-serif;
  font-weight: 380;
  font-size: 18px;
  line-height: 1.3;
}
.topic:hover .num { color: var(--accent); }

/* Submission */
.submission-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 64px;
  align-items: start;
}
@media (max-width: 880px) { .submission-grid { grid-template-columns: 1fr; gap: 40px; } }

.submission-card {
  padding: 48px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 4px;
  position: relative;
  overflow: hidden;
}
.submission-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: linear-gradient(90deg, var(--spectrum-1), var(--spectrum-2), var(--spectrum-3), var(--spectrum-4), var(--spectrum-5));
}
.submission-card h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 32px;
  margin: 0 0 24px;
  line-height: 1.2;
}
.submission-card p { color: var(--ink-dim); margin: 0 0 28px; font-size: 18px; line-height: 1.7; }
.submission-spec { list-style: none; padding: 0; margin: 0 0 32px; }
.submission-spec li {
  display: flex;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.submission-spec li:last-child { border-bottom: none; }
.submission-spec .k { color: var(--ink-dim); font-family: 'Inter', sans-serif; font-size: 12px; letter-spacing: 0.05em; text-transform: uppercase; }
.submission-spec .v { color: var(--ink); font-weight: 500; }

.publish-card {
  padding: 48px;
  background: linear-gradient(135deg, rgba(255, 58, 58, 0.08), rgba(106, 90, 205, 0.05));
  border: 1px solid var(--line);
  border-radius: 4px;
}
.publish-card .badge {
  display: inline-block;
  padding: 4px 12px;
  background: var(--violet-bg);
  color: var(--violet);
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-radius: 999px;
  margin-bottom: 20px;
}
.publish-card h4 {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 26px;
  margin: 0 0 16px;
  line-height: 1.2;
}
.publish-card p { color: var(--ink-dim); font-size: 17px; line-height: 1.7; margin: 0; }
.publish-card.stacked { margin-bottom: 24px; }

/* Submission Phases */
.phase-block { margin-bottom: 72px; }
.phase-block:last-child { margin-bottom: 0; }

.phase-label {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.phase-step {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #fff;
  background: var(--accent);
  padding: 5px 12px;
  border-radius: 999px;
}
.phase-block:last-child .phase-step {
  background: var(--violet);
}
.phase-title {
  font-family: 'Inter', sans-serif;
  font-size: 20px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.phase-card {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 40px;
  align-items: start;
}
@media (max-width: 880px) { .phase-card { grid-template-columns: 1fr; } }

.phase-info h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: clamp(22px, 2.4vw, 28px);
  margin: 0 0 16px;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.phase-info > p { color: var(--ink-dim); font-size: 18px; line-height: 1.7; margin: 0 0 28px; }

.phase-note {
  padding: 28px;
  background: var(--violet-bg);
  border: 1px solid rgba(124, 111, 212, 0.25);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.phase-note-icon { font-size: 28px; line-height: 1; }
.phase-note p { font-size: 14px; line-height: 1.65; color: var(--ink-dim); margin: 0; }

/* Venue */
.venue-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: center;
}
@media (max-width: 880px) { .venue-grid { grid-template-columns: 1fr; } }

.venue-info h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 350;
  font-size: clamp(32px, 4vw, 48px);
  margin: 0 0 24px;
  line-height: 1.05;
  letter-spacing: -0.01em;
}
.venue-info h3 em { font-style: italic; color: var(--gold); }
.venue-info p { color: var(--ink-dim); font-size: 16px; line-height: 1.7; max-width: 480px; }

.venue-meta {
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.venue-meta .item .k {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-low);
  margin-bottom: 6px;
}
.venue-meta .item .v { font-size: 14px; color: var(--ink); }

.venue-visual {
  aspect-ratio: 4/5;
  border: 1px solid var(--line);
  border-radius: 4px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 30% 30%, rgba(255, 58, 58, 0.2), transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(106, 90, 205, 0.15), transparent 50%),
    var(--bg-elev);
}
.venue-visual svg { position: absolute; inset: 0; width: 100%; height: 100%; }


/* Registration Section */
.reg-table-wrap { margin-bottom: 64px; }

.reg-early-note {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  font-size: 14px;
  color: var(--ink-dim);
}
.reg-early-badge {
  padding: 4px 12px;
  background: var(--gold-bg);
  color: var(--gold);
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-radius: 999px;
  white-space: nowrap;
}

.reg-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line);
  font-size: 14px;
}
.reg-table thead tr { background: var(--bg-elev); }
.reg-table th {
  padding: 16px 24px;
  text-align: left;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-dim);
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
}
.reg-table th:last-child { border-right: none; }
.reg-table th .reg-col-sub {
  display: block;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink-low);
  margin-top: 4px;
}
.reg-col-early { background: rgba(255, 58, 58, 0.04); }
.reg-table th.reg-col-early { color: var(--gold); }

.reg-table td {
  padding: 18px 24px;
  border-bottom: 1px solid var(--line-soft);
  border-right: 1px solid var(--line-soft);
  vertical-align: middle;
}
.reg-table td:last-child { border-right: none; }
.reg-table tbody tr:last-child td { border-bottom: none; }
.reg-table tbody tr:hover { background: var(--bg-elev); }

.reg-type { font-weight: 500; color: var(--ink); }
.reg-price-main {
  display: block;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 16px;
  color: var(--ink);
}
.reg-col-early .reg-price-main { color: var(--gold); }
.reg-price-sub {
  display: block;
  font-size: 12px;
  color: var(--ink-dim);
  margin-top: 3px;
  font-family: 'Inter', sans-serif;
}

@media (max-width: 600px) {
  .reg-table thead .reg-col-sub { display: none; }
  .reg-table th, .reg-table td { padding: 12px 14px; }
  .reg-price-main { font-size: 14px; }
}

.reg-lower-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}
@media (max-width: 880px) { .reg-lower-grid { grid-template-columns: 1fr; gap: 40px; } }

.reg-block-title {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 18px;
  margin: 0 0 24px;
  color: var(--ink);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.reg-includes-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
}
@media (max-width: 520px) { .reg-includes-list { grid-template-columns: 1fr; } }
.reg-includes-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 14px;
  color: var(--ink-dim);
}
.reg-include-icon { font-size: 18px; flex-shrink: 0; }

.reg-bank {
  padding: 36px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 4px;
}
.reg-bank dl.reg-bank-details {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px 24px;
  margin: 0 0 28px;
  align-items: baseline;
}
.reg-bank-details dt {
  font-size: 11px;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-low);
  white-space: nowrap;
}
.reg-bank-details dd {
  margin: 0;
  font-size: 14px;
  color: var(--ink);
  font-weight: 500;
}
.reg-bank-placeholder { color: var(--ink-dim); font-size: 14px; line-height: 1.6; margin: 0 0 24px; font-style: italic; }
.reg-bank-note {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.reg-bank-note p { font-size: 13px; color: var(--ink-dim); line-height: 1.65; margin: 0; }

/* Registration Form Page */
.reg-page { padding: 140px 0 100px; min-height: 80vh; }
.reg-page-header { max-width: 720px; margin-bottom: 64px; }
.reg-page-header h1 {
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  font-size: clamp(40px, 6vw, 72px);
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 16px 0 24px;
}
.reg-page-header p { font-size: 18px; color: var(--ink-dim); line-height: 1.6; margin: 0; }

.reg-instructions { max-width: 800px; margin-bottom: 56px; }
.reg-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.reg-steps li {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-soft);
}
.reg-step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.reg-steps li div { display: flex; flex-direction: column; gap: 4px; padding-top: 6px; }
.reg-steps li strong { font-size: 18px; color: var(--ink); }
.reg-steps li span { font-size: 16px; color: var(--ink-dim); line-height: 1.5; }

.reg-form-wrap {
  max-width: 800px;
  padding: 48px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 4px;
  position: relative;
}
.reg-form-wrap::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--spectrum-1), var(--spectrum-2), var(--spectrum-3), var(--spectrum-4), var(--spectrum-5));
  border-radius: 4px 4px 0 0;
}
.reg-form-admin-notice {
  padding: 24px;
  background: rgba(255, 58, 58, 0.06);
  border: 1px solid rgba(255, 58, 58, 0.2);
  border-radius: 4px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-dim);
}
.reg-form-admin-notice strong { color: var(--ink); }
.reg-form-admin-notice ol { margin: 16px 0 0; padding-left: 20px; }
.reg-form-admin-notice li { margin-bottom: 8px; }
.reg-form-admin-notice code {
  background: rgba(255,255,255,0.1);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 12px;
}

/* CF7 auto-styling to match theme */
.reg-form-wrap .wpcf7 input[type="text"],
.reg-form-wrap .wpcf7 input[type="email"],
.reg-form-wrap .wpcf7 select,
.reg-form-wrap .wpcf7 textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  transition: border-color .2s ease;
}
.reg-form-wrap .wpcf7 input:focus,
.reg-form-wrap .wpcf7 select:focus,
.reg-form-wrap .wpcf7 textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.reg-form-wrap .wpcf7 label { font-size: 13px; color: var(--ink-dim); margin-bottom: 6px; display: block; }
.reg-form-wrap .wpcf7 input[type="submit"] {
  padding: 14px 28px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all .2s ease;
}
.reg-form-wrap .wpcf7 input[type="submit"]:hover { background: #ff5050; }

/* Committee */
.committee-section { background: var(--bg-elev); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.committee-block { margin-bottom: 56px; }
.committee-block:last-child { margin-bottom: 0; }
.committee-block h3 {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--violet);
  margin: 0 0 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.committee-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 40px;
}
@media (max-width: 720px) { .committee-list { grid-template-columns: 1fr; } }
.committee-list .person {
  padding: 12px 0;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  border-bottom: 1px solid var(--line-soft);
}
.committee-list .person .name {
  font-family: 'Inter', sans-serif;
  font-weight: 420;
  font-size: 18px;
}
.committee-list .person .aff {
  font-size: 12px;
  color: var(--ink-dim);
  text-align: right;
  font-family: 'Inter', sans-serif;
  letter-spacing: 0.02em;
}

/* Organizers */
.org-block { text-align: center; }
.org-label {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-low);
  margin-bottom: 32px;
}
.org-names {
  font-family: 'Inter', sans-serif;
  font-weight: 350;
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.3;
  max-width: 900px;
  margin: 0 auto 64px;
}
.org-names em { font-style: italic; color: var(--gold); }
.org-names.small { font-size: clamp(20px, 2.4vw, 30px); }

/* Footer */
.site-footer {
  padding: 80px 0 40px;
  border-top: 1px solid var(--line);
  background: var(--bg);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 64px;
}
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-brand h4 {
  font-family: 'Inter', sans-serif;
  font-weight: 350;
  font-size: 36px;
  margin: 0 0 16px;
  line-height: 1;
}
.footer-brand h4 span { color: var(--accent); }
.footer-brand p { color: var(--ink-dim); font-size: 14px; line-height: 1.6; max-width: 320px; }
.footer-col h5 {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-low);
  margin: 0 0 16px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: var(--ink-dim); font-size: 14px; transition: color .2s ease; }
.footer-col ul a:hover { color: var(--ink); }

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  color: var(--ink-low);
  letter-spacing: 0.05em;
}

.spectrum-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--spectrum-1) 20%, var(--spectrum-2) 35%, var(--spectrum-3) 50%, var(--spectrum-4) 65%, var(--spectrum-5) 80%, transparent);
  margin: 0;
  border: none;
}

/* Generic page/post styling */
.page-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 160px var(--gutter) 100px;
}
.page-content h1 {
  font-family: 'Inter', sans-serif;
  font-weight: 350;
  font-size: clamp(40px, 6vw, 76px);
  line-height: 1.05;
  margin: 0 0 32px;
  letter-spacing: -0.02em;
}
.page-content h2, .page-content h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  margin-top: 48px;
}
.page-content p { color: var(--ink-dim); line-height: 1.7; }
.page-content a { color: var(--accent); border-bottom: 1px solid currentColor; }

/* WordPress core defaults */
.alignleft { float: left; margin-right: 1.5em; }
.alignright { float: right; margin-left: 1.5em; }
.aligncenter { display: block; margin-left: auto; margin-right: auto; }
.wp-caption { max-width: 100%; }
.wp-caption-text { font-size: 13px; color: var(--ink-dim); text-align: center; }
.screen-reader-text {
  position: absolute !important;
  clip: rect(1px, 1px, 1px, 1px);
  width: 1px; height: 1px;
  overflow: hidden;
}