:root {
  --black:   #000000;
  --white:   #FFFFFF;
  --yellow:  #FFFF00;
  --gray:    #DCDCDC;
  --dark1:   #111111;
  --dark2:   #1A1A1A;
  --dark3:   #252525;
  --faint:   #333333;
  --font-display: 'Rama Gothic E', sans-serif;
  --font-mono:    'Space Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── NAV ─────────────────────────────────────────────── */
nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--black);
  border-bottom: 1px solid var(--faint);
  display: flex; align-items: center;
  overflow-x: auto; -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
nav::-webkit-scrollbar { display: none; }
.nav-brand {
  display: flex; align-items: center;
  padding: 6px 14px;
  border-right: 1px solid var(--faint);
  flex-shrink: 0;
  text-decoration: none;
}
.nav-brand img { height: 28px; width: auto; display: block; }
nav a {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 1px;
  text-transform: uppercase;
  color: #AAAAAA; text-decoration: none;
  padding: 10px 14px; white-space: nowrap;
  border-right: 1px solid var(--faint);
  flex-shrink: 0; transition: color .15s;
}
nav a:hover { color: var(--yellow); }

/* ── LAYOUT ──────────────────────────────────────────── */
.page { max-width: 940px; margin: 0 auto; padding: 0 20px; }

/* ── HERO ────────────────────────────────────────────── */
.hero {
  padding: 48px 0 40px;
  border-bottom: 2px solid var(--yellow);
}
.hero-logo {
  margin-bottom: 20px;
}
.hero-logo img {
  width: min(580px, 100%);
  height: auto;
  display: block;
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 2px;
  text-transform: uppercase; color: #AAAAAA;
  margin-bottom: 28px;
}
.hero-body {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
}
@media (max-width: 580px) { .hero-body { grid-template-columns: 1fr; } }
.pitch { font-size: 13px; line-height: 1.8; color: #DDDDDD; }
.pitch b { color: var(--white); }
.meta-block { display: flex; flex-direction: column; gap: 16px; }
.meta-label {
  font-family: var(--font-mono);
  font-size: 9px; letter-spacing: 2px;
  text-transform: uppercase; color: var(--yellow);
  margin-bottom: 2px;
}
.meta-val { font-size: 13px; color: var(--white); line-height: 1.5; }
.meta-val a { color: var(--yellow); text-decoration: none; }
.meta-val a:hover { text-decoration: underline; }

/* ── SECTION HEADERS ─────────────────────────────────── */
.section-hdr { padding: 44px 0 22px; }
.section-tag {
  font-family: var(--font-mono);
  font-size: 9px; letter-spacing: 2px;
  text-transform: uppercase; color: #AAAAAA;
  margin-bottom: 6px;
}
.section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 6vw, 48px);
  text-transform: uppercase; color: var(--white);
  line-height: 0.95; margin-bottom: 8px;
}
.section-sub { font-size: 11px; color: #AAAAAA; }

/* ── DAY HEADER ──────────────────────────────────────── */
.day-hdr {
  display: flex; align-items: baseline; gap: 14px;
  margin: 36px 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--yellow);
}
.day-name {
  font-family: var(--font-display);
  font-weight: 800; font-size: 28px;
  text-transform: uppercase; color: var(--white);
}
.day-meta { font-size: 11px; color: #AAAAAA; letter-spacing: 0.5px; }

/* ── TALK CARDS ──────────────────────────────────────── */
.talk-card {
  border-left: 2px solid var(--faint);
  padding: 12px 0 12px 16px;
  margin-bottom: 2px;
  transition: background .15s;
}
.talk-card:hover { background: var(--dark1); }
.talk-card.keynote  { border-left-color: var(--yellow); background: #0D0D00; }
.talk-card.keynote:hover  { background: #141400; }
.talk-card.lightning { border-left-color: var(--gray); background: var(--dark1); }
.talk-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 8px; letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 2px 8px; margin-bottom: 7px;
}
.badge-keynote  { background: var(--yellow); color: var(--black); }
.badge-lightning { border: 1px solid var(--gray); color: var(--gray); }
.talk-title {
  font-family: var(--font-display);
  font-weight: 700; font-size: 18px; line-height: 1.2;
  color: var(--white); margin-bottom: 4px;
}
.talk-speaker { font-size: 11px; color: #AAAAAA; margin-bottom: 6px; }
.talk-speaker a { color: #AAAAAA; text-decoration: none; transition: color .15s; }
.talk-speaker a:hover { color: var(--yellow); }
.talk-desc { font-size: 12px; color: #CCCCCC; line-height: 1.65; }

/* ── DIVIDER ─────────────────────────────────────────── */
hr.rule { border: none; border-top: 1px solid var(--faint); margin: 32px 0; }

/* ── WORKSHOP TABLE ──────────────────────────────────── */
.ws-outer { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.ws-table { width: 100%; border-collapse: collapse; min-width: 560px; }
.ws-table th {
  font-family: var(--font-display);
  font-weight: 700; font-size: 13px;
  letter-spacing: 0.5px; text-transform: uppercase;
  color: var(--white); background: var(--dark2);
  padding: 10px 12px; text-align: left;
  border: 1px solid var(--faint);
}
.ws-table th.blk { width: 72px; color: #AAAAAA; }
.ws-table td {
  padding: 10px 12px; vertical-align: top;
  border: 1px solid var(--faint);
  background: var(--dark1);
}
.ws-table td.block-cell {
  background: var(--black);
  vertical-align: middle; text-align: center;
}
.block-label {
  font-family: var(--font-display);
  font-weight: 800; font-size: 13px;
  text-transform: uppercase; color: var(--yellow);
  display: block; margin-bottom: 2px;
}
.block-time { font-size: 9px; color: #AAAAAA; display: block; }
.ws-title {
  font-family: var(--font-display); font-weight: 700;
  font-size: 14px; line-height: 1.25;
  color: var(--white); margin-bottom: 4px;
}
.ws-inst { font-size: 10px; color: #AAAAAA; margin-bottom: 4px; }
.ws-level {
  display: inline-block; font-family: var(--font-mono);
  font-size: 9px; padding: 1px 6px;
  border: 1px solid #555555; color: #AAAAAA;
}
.ws-note { font-size: 11px; color: #AAAAAA; margin-top: 8px; }
.ws-note a { color: var(--yellow); text-decoration: none; }

/* ── THURSDAY TWO-COL ────────────────────────────────── */
.thu-note {
  font-size: 11px; color: #BBBBBB;
  padding: 10px 14px; margin-bottom: 16px;
  border-left: 2px solid var(--faint); background: var(--dark1);
}
.thu-col-hdrs {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 2px; margin-bottom: 2px;
}
@media (max-width: 600px) { .thu-col-hdrs { display: none; } }
.thu-col-hdr {
  font-family: var(--font-display);
  font-weight: 700; font-size: 13px;
  text-transform: uppercase; letter-spacing: 0.5px;
  color: var(--white); background: var(--dark3);
  padding: 8px 12px;
}
.thu-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; margin-bottom: 2px; }
@media (max-width: 600px) {
  .thu-grid { display: flex; flex-direction: column; gap: 1px; margin-bottom: 14px; }
}
.thu-cell {
  padding: 12px; background: var(--dark1); transition: background .15s;
}
.thu-cell:hover { background: var(--dark2); }
.thu-cell-track {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 8px; letter-spacing: 1px;
  text-transform: uppercase;
  padding: 1px 6px; margin-bottom: 7px;
  border: 1px solid;
}
.track-general { color: #666666; border-color: #444444; }
.track-naf     { color: var(--yellow); border-color: var(--yellow); }
.track-leader  { color: #AAAAAA; border-color: #666666; }
.thu-cell-title {
  font-family: var(--font-display);
  font-weight: 700; font-size: 15px; line-height: 1.25;
  color: var(--white); margin-bottom: 4px;
}
.thu-cell-speaker { font-size: 11px; color: #AAAAAA; margin-bottom: 6px; }
.thu-cell-speaker a { color: #AAAAAA; text-decoration: none; }
.thu-cell-speaker a:hover { color: var(--yellow); }
.thu-cell-desc { font-size: 12px; color: #BBBBBB; line-height: 1.6; }
@media (max-width: 600px) { .thu-cell-desc { display: none; } }
.thu-track-change {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 2px; margin: 14px 0 2px;
}
.thu-track-cell {
  font-family: var(--font-mono);
  font-size: 8px; letter-spacing: 1.5px;
  text-transform: uppercase; color: #AAAAAA;
  padding: 6px 12px; background: var(--dark3);
}
.thu-track-cell.highlight { color: var(--yellow); border-left: 2px solid var(--yellow); }
.thu-track-mobile { display: none; }
@media (max-width: 600px) {
  .thu-track-change { display: block; }
  .thu-track-cell   { display: none; }
  .thu-track-mobile { display: block; background: var(--dark3); }
  .thu-track-mobile-row {
    font-family: var(--font-mono);
    font-size: 8px; letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 7px 12px; display: block;
  }
  .thu-track-mobile-row + .thu-track-mobile-row { border-top: 1px solid var(--black); }
  .thu-track-mobile-general { color: var(--yellow); }
  .thu-track-mobile-parallel { color: #AAAAAA; }
}

/* ── LIGHTNING ───────────────────────────────────────── */
.lightning-hdr {
  font-family: var(--font-mono);
  font-size: 9px; letter-spacing: 2px;
  text-transform: uppercase; color: #AAAAAA;
  margin: 18px 0 6px;
}
.lightning-list {
  border-left: 2px solid var(--gray); background: var(--dark1);
}
.lightning-item {
  padding: 10px 16px; border-bottom: 1px solid var(--faint);
}
.lightning-item:last-child { border-bottom: none; }
.lightning-title {
  font-family: var(--font-display);
  font-weight: 700; font-size: 15px;
  color: var(--white); margin-bottom: 2px;
}
.lightning-icon { color: var(--gray); margin-right: 6px; }
.lightning-speaker { font-size: 11px; color: #AAAAAA; }
.lightning-speaker a { color: #AAAAAA; text-decoration: none; }
.lightning-speaker a:hover { color: var(--yellow); }

/* ── SPONSORS ────────────────────────────────────────── */
.sponsor-tier { margin-bottom: 40px; }
.tier-label {
  font-family: var(--font-mono);
  font-size: 9px; letter-spacing: 2px;
  text-transform: uppercase; color: #AAAAAA;
  margin-bottom: 20px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--faint);
}
.logo-grid {
  display: flex; flex-wrap: wrap;
  gap: 40px 56px; align-items: center;
  justify-content: flex-start;
}
.logo-wrap {
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.logo-wrap img {
  display: block; object-fit: contain;
  width: 100%; height: 100%;
  opacity: 0.88; transition: opacity .2s;
}
.logo-wrap img:hover { opacity: 1; }

/* Accelerating — centred, largest */
.tier-acc .logo-grid { justify-content: center; }
.tier-acc .logo-wrap { width: 260px; height: 90px; }

/* Sustaining — centred */
.tier-sus .logo-grid { justify-content: center; gap: 56px; }
.tier-sus .logo-wrap { width: 160px; height: 60px; }

/* Supporting — left-aligned */
.tier-sup .logo-wrap { width: 120px; height: 40px; }

/* Friends of NAF — small */
.tier-fof .logo-wrap { width: 96px; height: 42px; }

/* Partners — match sustaining, side by side groups */
.partners-row {
  display: flex; flex-wrap: wrap; gap: 48px; align-items: flex-start;
}
.partner-group { display: flex; flex-direction: column; gap: 8px; }
.partner-group-label {
  font-family: var(--font-mono);
  font-size: 8px; letter-spacing: 1px;
  text-transform: uppercase; color: #888888;
}
.tier-prt .logo-wrap { width: 160px; height: 60px; }

/* ── VENUE GUIDE ─────────────────────────────────────── */
.venue-guide {
  margin: 24px 0 28px;
  border: 1px solid var(--faint);
  background: var(--dark1);
  padding: 14px 18px;
  display: inline-block;
}
.venue-guide-title {
  font-family: var(--font-mono);
  font-size: 9px; letter-spacing: 2px;
  text-transform: uppercase; color: #AAAAAA;
  margin-bottom: 10px; padding-bottom: 8px;
  border-bottom: 1px solid var(--faint);
}
.venue-floor {
  display: flex; align-items: baseline; gap: 14px;
  padding: 5px 0;
}
.venue-floor + .venue-floor { border-top: 1px solid #1A1A1A; }
.floor-lvl {
  font-family: var(--font-display);
  font-weight: 800; font-size: 13px;
  width: 24px; flex-shrink: 0; text-align: right;
}
.floor-lvl-plus, .floor-lvl-minus { color: var(--white); }
.floor-lvl-gf { color: var(--yellow); }
.floor-rooms { font-family: var(--font-mono); font-size: 11px; color: #CCCCCC; }

/* ── ROOM LABELS ─────────────────────────────────────── */
.day-room {
  font-family: var(--font-mono);
  font-size: 9px; letter-spacing: 1.5px;
  text-transform: uppercase; color: #777777;
  margin: -10px 0 14px;
}
.day-room-pin { color: var(--yellow); margin-right: 4px; }
.thu-col-hdr-room {
  display: block;
  font-family: var(--font-mono);
  font-weight: normal; font-size: 8px;
  letter-spacing: 1px; text-transform: uppercase;
  color: #777777; margin-top: 3px;
}
.ws-th-room {
  font-family: var(--font-mono);
  font-weight: normal; font-size: 9px;
  letter-spacing: 0.5px; text-transform: uppercase;
  color: #888888; margin-top: 3px;
}

/* ── SESSION TIMES ───────────────────────────────────── */
.talk-time {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.5px;
  color: #888888; margin-bottom: 5px;
}
.thu-cell-time {
  font-family: var(--font-mono);
  font-size: 9px; letter-spacing: 0.5px;
  color: #777777; margin-bottom: 5px;
}

/* ── SCHEDULE ENTRIES (breaks · events · sponsors) ────── */
.sched-item {
  display: flex; align-items: baseline; gap: 10px;
  font-family: var(--font-mono); font-size: 10px;
  padding: 5px 0 5px 16px;
  border-left: 2px solid var(--dark3);
  margin-bottom: 2px;
}
.sched-item.sched-event  { border-left-color: var(--faint); }
.sched-item.sched-sponsor { border-left-color: var(--faint); font-style: italic; }
.sched-time { color: #666666; white-space: nowrap; flex-shrink: 0; }
.sched-label { color: #777777; }
.sched-item.sched-event .sched-label { color: #888888; }
.thu-sched-span {
  display: flex; align-items: baseline; gap: 10px;
  font-family: var(--font-mono); font-size: 10px;
  padding: 6px 12px; margin-bottom: 2px;
  border-left: 2px solid var(--dark3);
  background: var(--black);
}
.thu-sched-span .sched-label { color: #666666; }
.thu-cell-sched {
  display: flex; align-items: baseline; gap: 8px;
  padding: 7px 12px; background: var(--black);
  font-family: var(--font-mono); font-size: 10px;
}
.thu-cell-sched .sched-label { color: #666666; }
@media (max-width: 600px) { .thu-cell-sched:empty { display: none; } }
.lightning-time { color: #666666; margin-right: 6px; }

/* ── FOOTER ──────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--faint);
  padding: 32px 0 40px;
  text-align: center;
}
.footer-logo {
  height: 40px; width: auto;
  opacity: 0.7; margin-bottom: 20px;
}
footer p { font-size: 11px; color: #AAAAAA; line-height: 1.8; }
footer strong { color: var(--white); }
footer a { color: var(--yellow); text-decoration: none; }