/* ==========================================================================
   Central States Collision Conference — Stylesheet
   ========================================================================== */

:root {
  /* Color tokens */
  --navy: #0A1F44;
  --navy-deep: #061429;
  --red: #C8102E;
  --red-dark: #9C0C23;
  --chrome-1: #8A8D8F;
  --chrome-2: #C9CBCC;
  --chrome-3: #F1F2F3;
  --charcoal: #1B1D21;
  --gray-mid: #5F6B7A;
  --gray-line: #E7E9EC;
  --off-white: #F7F8F9;
  --white: #FFFFFF;

  /* Type */
  --font-display: 'Oswald', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Layout */
  --max-width: 1180px;
  --section-pad: clamp(72px, 9vw, 128px);
  --radius: 6px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-body);
  color: var(--charcoal);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

section { padding: var(--section-pad) 0; position: relative; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--navy);
  line-height: 1.15;
  font-weight: 600;
}

h2 { font-size: clamp(1.9rem, 3.4vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.4rem); }

p { color: var(--gray-mid); }

.lede { font-size: 1.05rem; max-width: 60ch; }

.eyebrow {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  color: var(--red);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.eyebrow::before {
  content: '';
  width: 22px;
  height: 1.5px;
  background: var(--red);
  display: inline-block;
}

.section-head { max-width: 600px; margin-bottom: 44px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head p { margin-top: 12px; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--navy);
  color: var(--white);
  padding: 12px 20px;
  z-index: 200;
}
.skip-link:focus { left: 16px; top: 16px; }

:focus-visible { outline: 2px solid var(--red); outline-offset: 2px; }

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 15px 30px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn-primary { background: var(--red); color: var(--white); }
.btn-primary:hover { background: var(--red-dark); }

.btn-outline { background: transparent; border-color: rgba(255,255,255,0.5); color: var(--white); }
.btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,0.06); }

.btn-navy { background: var(--navy); color: var(--white); }
.btn-navy:hover { background: var(--navy-deep); }

/* ==========================================================================
   Header / Nav
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--navy-deep);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; }

.logo-mark { display: flex; align-items: center; gap: 12px; color: var(--white); }

.logo-mark .wordmark {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1;
}

.logo-mark .wordmark span { color: var(--red); }

.logo-mark small {
  display: block;
  font-size: 0.58rem;
  letter-spacing: 0.13em;
  color: var(--chrome-2);
  font-weight: 400;
  text-transform: uppercase;
  margin-top: 2px;
}

.main-nav { display: flex; align-items: center; gap: 32px; }

.main-nav a {
  color: var(--chrome-3);
  font-family: var(--font-display);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
  padding: 4px 0;
  opacity: 0.85;
  transition: opacity 0.15s ease;
}

.main-nav a:hover, .main-nav a.active { opacity: 1; }

.nav-cta {
  background: var(--red);
  color: var(--white) !important;
  padding: 9px 20px;
  border-radius: var(--radius);
  font-size: 0.82rem;
  opacity: 1 !important;
}
.nav-cta:hover { background: var(--red-dark); }

.nav-toggle { display: none; background: none; border: none; color: var(--white); font-size: 1.5rem; cursor: pointer; }

@media (max-width: 880px) {
  .main-nav {
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: var(--navy-deep);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 28px;
    gap: 18px;
    transform: translateY(-110%);
    transition: transform 0.25s ease;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .main-nav.open { transform: translateY(0); }
  .nav-toggle { display: block; }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  background: var(--navy-deep);
  overflow: hidden;
  padding-top: 72px;
}

.hero-swoosh { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; }
.hero-swoosh path { fill: none; stroke-linecap: round; }

.swoosh-draw {
  stroke-dasharray: 1800;
  stroke-dashoffset: 1800;
  animation: drawSwoosh 1.8s cubic-bezier(0.65, 0, 0.35, 1) 0.15s forwards;
}

@keyframes drawSwoosh { to { stroke-dashoffset: 0; } }

@media (prefers-reduced-motion: reduce) {
  .swoosh-draw { stroke-dashoffset: 0; animation: none; }
}

.hero-content { position: relative; z-index: 2; max-width: 720px; padding: 64px 28px; }

.hero-eyebrow {
  color: var(--chrome-2);
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.8rem;
  margin-bottom: 20px;
}

.hero h1 {
  color: var(--white);
  font-size: clamp(2.4rem, 5.4vw, 4rem);
  font-weight: 600;
  margin-bottom: 20px;
}

.hero h1 .accent { color: var(--red); }

.hero-sub {
  color: var(--chrome-3);
  font-size: clamp(1.02rem, 1.4vw, 1.15rem);
  max-width: 480px;
  margin-bottom: 32px;
  font-weight: 300;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin-bottom: 36px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.14);
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--white);
  font-family: var(--font-display);
  letter-spacing: 0.02em;
  font-size: 0.95rem;
}

.hero-meta-item svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--red); }

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

.pillars-strip { position: relative; z-index: 2; border-top: 1px solid rgba(255,255,255,0.1); }

.pillars-grid { display: grid; grid-template-columns: repeat(4, 1fr); }

.pillar {
  padding: 20px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-left: 1px solid rgba(255,255,255,0.08);
}

.pillar:first-child { border-left: none; }

.pillar svg { width: 18px; height: 18px; color: var(--chrome-2); flex-shrink: 0; }

.pillar span {
  font-family: var(--font-display);
  color: var(--chrome-3);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

@media (max-width: 760px) {
  .pillars-grid { grid-template-columns: repeat(2, 1fr); }
  .pillar { border-left: none; border-top: 1px solid rgba(255,255,255,0.08); }
}

/* ==========================================================================
   About
   ========================================================================== */

.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }

.about-visual {
  position: relative;
  background: var(--navy-deep);
  border-radius: var(--radius);
  aspect-ratio: 4/3;
  overflow: hidden;
}

.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin-top: 36px;
  border: 1px solid var(--gray-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--gray-line);
}

.stat-card { background: var(--white); padding: 22px 24px; }

.stat-card .num {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 600;
  color: var(--navy);
  display: block;
}

.stat-card .label {
  font-size: 0.78rem;
  color: var(--gray-mid);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

@media (max-width: 880px) { .about-grid { grid-template-columns: 1fr; } }

/* ==========================================================================
   Schedule
   ========================================================================== */

.schedule-section { background: var(--off-white); }

.day-tabs {
  display: inline-flex;
  gap: 4px;
  margin-bottom: 40px;
  background: var(--white);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius);
  padding: 4px;
}

.day-tab {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.85rem;
  padding: 10px 22px;
  background: transparent;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  color: var(--gray-mid);
  font-weight: 500;
  transition: background 0.15s ease, color 0.15s ease;
}

.day-tab.active { background: var(--navy); color: var(--white); }

.day-panel { display: none; }
.day-panel.active { display: block; }

.timeline { display: flex; flex-direction: column; gap: 1px; }

.timeline-item {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--gray-line);
}

.timeline-item:last-child { border-bottom: none; }

.timeline-time {
  font-family: var(--font-display);
  color: var(--navy);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  padding-top: 2px;
}

.timeline-card h4 {
  font-size: 1.05rem;
  margin-bottom: 6px;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 600;
}

.timeline-card p { font-size: 0.94rem; margin: 0; }

.tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 3px;
  background: var(--chrome-3);
  color: var(--gray-mid);
  margin-top: 10px;
}

@media (max-width: 600px) {
  .timeline-item { grid-template-columns: 1fr; gap: 6px; }
}

/* ==========================================================================
   Registration
   ========================================================================== */

.reg-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: start; }

.pricing-card {
  background: var(--white);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 20px;
}

.pricing-card.featured { border-color: var(--navy); }

.pricing-card .kicker {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.72rem;
  color: var(--red);
  margin-bottom: 10px;
  display: block;
}

.pricing-card h3 { margin-bottom: 6px; }

.pricing-card .price {
  font-family: var(--font-display);
  font-size: 2.1rem;
  font-weight: 600;
  color: var(--navy);
  margin: 16px 0 4px;
}

.pricing-card .price span {
  font-size: 0.95rem;
  color: var(--gray-mid);
  font-weight: 400;
  text-transform: none;
}

.pricing-card ul { list-style: none; margin: 20px 0 0; padding: 0; }

.pricing-card li {
  display: flex;
  gap: 10px;
  padding: 9px 0;
  font-size: 0.92rem;
  color: var(--charcoal);
  border-top: 1px solid var(--gray-line);
}

.pricing-card li:first-child { border-top: none; }
.pricing-card li svg { width: 16px; height: 16px; color: var(--red); flex-shrink: 0; margin-top: 3px; }

.assoc-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }

.assoc-chip {
  font-family: var(--font-display);
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  background: var(--off-white);
  color: var(--navy);
  padding: 5px 11px;
  border-radius: 3px;
  font-weight: 600;
}

.reg-form { background: var(--navy); border-radius: var(--radius); padding: 36px; color: var(--white); }

.reg-form h3 { color: var(--white); margin-bottom: 6px; }
.reg-form > p { color: var(--chrome-2); margin-bottom: 26px; font-size: 0.9rem; }

.form-row { margin-bottom: 18px; }
.form-row.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.form-row label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.74rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--chrome-2);
  margin-bottom: 7px;
}

.form-row input, .form-row select, .form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.16);
  background: rgba(255,255,255,0.05);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.94rem;
}

.form-row input::placeholder, .form-row textarea::placeholder { color: rgba(255,255,255,0.38); }
.form-row select option { color: var(--charcoal); }

.form-row input:focus, .form-row select:focus, .form-row textarea:focus { outline: none; border-color: var(--red); }

.radio-group { display: flex; gap: 12px; flex-wrap: wrap; }
.radio-option { flex: 1; min-width: 130px; position: relative; }
.radio-option input { position: absolute; opacity: 0; }

.radio-option label {
  display: block;
  text-align: center;
  padding: 13px 10px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 4px;
  cursor: pointer;
  text-transform: none;
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--chrome-2);
  margin: 0;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.radio-option input:checked + label { border-color: var(--red); color: var(--white); }

.form-note { font-size: 0.8rem; color: var(--chrome-2); margin-top: 6px; line-height: 1.55; }

.form-submit { width: 100%; margin-top: 6px; }

.form-success { display: none; text-align: center; padding: 30px 10px; }
.form-success.show { display: block; }
.form-success h3 { color: var(--white); }
.form-success p { color: var(--chrome-2); }

@media (max-width: 900px) {
  .reg-grid { grid-template-columns: 1fr; }
  .form-row.two-col { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Vendors
   ========================================================================== */

.vendor-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-bottom: 44px;
  background: var(--gray-line);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.vendor-slot {
  aspect-ratio: 1.6/1;
  background: var(--off-white);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--chrome-1);
  font-family: var(--font-display);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-align: center;
  padding: 12px;
}

@media (max-width: 880px) { .vendor-grid { grid-template-columns: repeat(2, 1fr); } }

.vendor-cta { background: var(--navy); border-radius: var(--radius); padding: 44px; text-align: center; }
.vendor-cta h3, .vendor-cta p { color: var(--white); }
.vendor-cta p { color: var(--chrome-3); max-width: 480px; margin: 10px auto 26px; }

/* ==========================================================================
   Venue
   ========================================================================== */

.venue-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }

.venue-map-frame { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--gray-line); height: 340px; }
.venue-map-frame iframe { width: 100%; height: 100%; border: 0; }

.info-list { list-style: none; margin-top: 22px; }

.info-list li { display: flex; flex-direction: column; padding: 14px 0; border-top: 1px solid var(--gray-line); }
.info-list li:first-child { border-top: none; padding-top: 0; }

.info-list strong {
  color: var(--navy);
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 3px;
}

.info-list span { color: var(--gray-mid); font-size: 0.92rem; }

@media (max-width: 880px) { .venue-grid { grid-template-columns: 1fr; } }

/* ==========================================================================
   FAQ
   ========================================================================== */

.faq-item { border-bottom: 1px solid var(--gray-line); }

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  color: var(--navy);
}

.faq-question .icon { flex-shrink: 0; width: 18px; height: 18px; position: relative; }
.faq-question .icon::before, .faq-question .icon::after {
  content: '';
  position: absolute;
  background: var(--gray-mid);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.faq-question .icon::before { width: 14px; height: 1.5px; top: 8px; left: 2px; }
.faq-question .icon::after { width: 1.5px; height: 14px; top: 2px; left: 8px; }

.faq-item.open .icon::after { transform: rotate(90deg); opacity: 0; }

.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.25s ease; }
.faq-answer p { padding-bottom: 20px; max-width: 680px; font-size: 0.95rem; }

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer { background: var(--navy-deep); color: var(--chrome-3); padding: 56px 0 26px; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-grid h4 { color: var(--white); font-size: 0.8rem; letter-spacing: 0.06em; margin-bottom: 16px; font-weight: 500; }

.footer-grid ul { list-style: none; }
.footer-grid li { margin-bottom: 9px; }
.footer-grid a { color: var(--chrome-2); font-size: 0.9rem; opacity: 0.85; transition: opacity 0.15s ease; }
.footer-grid a:hover { opacity: 1; }

.footer-brand .wordmark { font-family: var(--font-display); color: var(--white); font-size: 1.2rem; margin-bottom: 12px; }
.footer-brand .wordmark span { color: var(--red); }
.footer-brand p { font-size: 0.86rem; color: var(--chrome-2); max-width: 280px; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 22px;
  font-size: 0.8rem;
  color: var(--chrome-1);
  flex-wrap: wrap;
  gap: 12px;
}

@media (max-width: 880px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

/* ==========================================================================
   Utility
   ========================================================================== */

.text-center { text-align: center; }

.alert-banner {
  background: var(--off-white);
  border: 1px solid var(--gray-line);
  padding: 14px 18px;
  border-radius: var(--radius);
  font-size: 0.88rem;
  color: var(--gray-mid);
  margin-top: 20px;
}