/* =============================================
   WOLVERINE MATH TOURNAMENT — Global Styles
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;500;600;700;800&display=swap');

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

:root {
  --bg:        #d6eaf8;
  --bg-card:   #ffffff;
  --accent:    #5ba4cf;
  --accent2:   #f39c12;
  --text:      #2c3e50;
  --muted:     #7f8c8d;
  --border:    #cde0f0;
  --blue-tag:  #3498db;
  --purple-tag:#9b59b6;
  --green-tag: #27ae60;
  --gray-tag:  #95a5a6;
  --orange-tag:#e67e22;
  --red-tag:   #e74c3c;
  --radius:    12px;
  --shadow:    0 2px 12px rgba(0,0,0,0.08);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Nunito', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* ── Floating math symbols background ── */
.bg-symbols {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.bg-symbols span {
  position: absolute;
  font-size: 1.1rem;
  color: rgba(91,164,207,0.25);
  font-weight: 700;
  animation: floatSym 20s linear infinite;
  user-select: none;
}
@keyframes floatSym {
  0%   { transform: translateY(0) rotate(0deg); opacity: 0.2; }
  50%  { opacity: 0.4; }
  100% { transform: translateY(-30px) rotate(15deg); opacity: 0.2; }
}

/* ── Page wrapper ── */
.page-wrap {
  position: relative;
  z-index: 1;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px 60px;
}

/* ── Site header ── */
.site-header {
  text-align: center;
  padding: 32px 16px 0;
}
.site-header__logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-bottom: 4px;
  font-size: 1.6rem;
}
.site-header h1 {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.15;
}
.site-header h1 .wolverine {
  color: var(--accent);
}
.site-header h1 .math-tournament {
  color: var(--text);
}
.date-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  background: rgba(255,255,255,0.75);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}
.date-badge a {
  color: var(--accent);
  text-decoration: none;
}
.date-badge a:hover { text-decoration: underline; }

/* ── Nav ── */
.main-nav {
  display: flex;
  justify-content: center;
  margin: 18px auto 24px;
  background: rgba(255,255,255,0.6);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px;
  gap: 4px;
  flex-wrap: wrap;
  max-width: 700px;
  backdrop-filter: blur(6px);
}
.main-nav a {
  text-decoration: none;
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 7px;
  transition: background 0.18s, color 0.18s;
}
.main-nav a:hover { background: rgba(91,164,207,0.15); }
.main-nav a.active {
  background: var(--accent2);
  color: #fff;
}

/* ── Card ── */
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 32px;
  margin-bottom: 20px;
}
.card h2 {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 6px;
  text-align: center;
}
.card .card-sub {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 18px;
}

/* ── Stats row ── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.stat-box {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 10px;
  text-align: center;
}
.stat-box .stat-num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
}
.stat-box .stat-label {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 2px;
}

/* ── Time/Date/Location row ── */
.info-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  margin-bottom: 20px;
}
.info-cell {
  padding: 20px;
  text-align: center;
  border-right: 1px solid var(--border);
}
.info-cell:last-child { border-right: none; }
.info-cell .label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}
.info-cell .value {
  font-size: 0.95rem;
  font-weight: 700;
}
.info-cell a { color: var(--accent); text-decoration: none; }
.info-cell a:hover { text-decoration: underline; }

/* ── Home hero card ── */
.hero-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: start;
}
.hero-card .left h2 {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 4px;
  text-align: left;
}
.hero-card .left .tagline {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.hero-card .left .tagline span {
  display: block;
}
.hero-card .left p {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 12px;
}
.for-everyone {
  background: #f4f9ff;
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 12px;
}
.for-everyone h4 {
  font-size: 0.8rem;
  font-weight: 800;
  margin-bottom: 6px;
  color: var(--text);
}
.for-everyone p {
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 8px;
}
.tag-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}
.tag {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  color: #fff;
}
.tag--blue   { background: var(--blue-tag); }
.tag--green  { background: var(--green-tag); }
.tag--purple { background: var(--purple-tag); }
.tag--orange { background: var(--orange-tag); }
.tag--gray   { background: var(--gray-tag); }
.tag--red    { background: var(--red-tag); }
.tag--teal   { background: #1abc9c; }

.btn-register {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 9px 20px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.18s;
}
.btn-register:hover { background: #4a8fb5; }
.btn-register--purple { background: #9b59b6; }
.btn-register--purple:hover { background: #7d3c98; }
.btn-register--teal { background: #1abc9c; }
.btn-register--teal:hover { background: #17a589; }

/* chart placeholder */
.chart-placeholder {
  background: linear-gradient(135deg, #e8f4fd, #d6eaf8);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 160px;
  font-size: 0.75rem;
  color: var(--muted);
  text-align: center;
  padding: 16px;
}
.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 90px;
  margin-bottom: 8px;
}
.bar {
  width: 20px;
  border-radius: 4px 4px 0 0;
}

/* ── Photo cards ── */
.photo-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}
.photo-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.photo-card .photo-img {
  width: 100%;
  height: 130px;
  background: #b2d3ec;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}
.photo-card .photo-body {
  padding: 12px 14px;
}
.photo-card .photo-body h4 { font-size: 0.9rem; font-weight: 800; margin-bottom: 4px; }
.photo-card .photo-body p  { font-size: 0.78rem; color: var(--muted); line-height: 1.5; }

/* ── About info grid ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.about-box {
  background: #f7fbff;
  border-radius: 10px;
  padding: 16px;
}
.about-box .box-icon {
  font-size: 1.3rem;
  margin-bottom: 6px;
}
.about-box h4 { font-size: 0.9rem; font-weight: 800; margin-bottom: 4px; }
.about-box p, .about-box li {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.6;
}
.about-box ul { padding-left: 16px; }
.about-box .detail-row { margin-top: 4px; }
.about-box .detail-row span { display: block; font-size: 0.78rem; color: var(--muted); }
.about-box .detail-row strong { color: var(--text); }

/* ── Schedule timeline ── */
.schedule-list { list-style: none; }
.schedule-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid #f0f4f8;
}
.schedule-item:last-child { border-bottom: none; }
.sched-time {
  min-width: 70px;
  text-align: right;
}
.sched-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  padding: 4px 10px;
  border-radius: 6px;
  white-space: nowrap;
}
.sched-body h4 { font-size: 0.9rem; font-weight: 800; margin-bottom: 2px; }
.sched-body p  { font-size: 0.8rem; color: var(--muted); line-height: 1.5; }

/* ── Registration ── */
.reg-btn-wrap {
  background: linear-gradient(135deg, #ede7f6, #f3e5f5);
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  margin-bottom: 16px;
}
.reg-btn-wrap p { font-size: 0.85rem; color: var(--muted); margin-bottom: 14px; }

.bullet-list { list-style: none; padding: 0; }
.bullet-list li {
  font-size: 0.85rem;
  color: var(--text);
  padding: 5px 0;
  padding-left: 18px;
  position: relative;
  line-height: 1.5;
}
.bullet-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 800;
}
.bullet-list a { color: var(--accent); }

/* ── Logistics ── */
.logistics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: start;
}
.map-placeholder {
  background: #e8f4fb;
  border-radius: 10px;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 8px;
  color: var(--muted);
  font-size: 0.85rem;
  border: 2px dashed var(--border);
}
.map-placeholder .map-icon { font-size: 2rem; }

/* ── Archive ── */
.archive-section { margin-bottom: 20px; }
.archive-section h3 { font-size: 1rem; font-weight: 800; margin-bottom: 10px; }
.archive-link {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--accent);
  text-decoration: none;
  padding: 5px 0;
  border-bottom: 1px solid #f0f4f8;
}
.archive-link:hover { text-decoration: underline; }
.archive-link .pdf-icon { color: #e74c3c; font-size: 1rem; }
.archive-note {
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
}
.archive-note a { color: var(--accent); }

/* ── Contact ── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.contact-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px 16px;
  text-align: center;
}
.contact-card .c-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin: 0 auto 10px;
}
.c-icon--red    { background: #fdecea; }
.c-icon--blue   { background: #e3f0fb; }
.c-icon--green  { background: #e8f8f2; }
.contact-card h4 { font-size: 0.85rem; font-weight: 800; margin-bottom: 6px; }
.contact-card p, .contact-card a {
  font-size: 0.8rem;
  color: var(--muted);
  text-decoration: none;
  line-height: 1.5;
}
.contact-card a { color: var(--accent); }
.contact-card a:hover { text-decoration: underline; }

.sponsor-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  text-align: center;
  margin-top: 16px;
}
.sponsor-card h4 { font-size: 0.9rem; font-weight: 800; margin-bottom: 8px; }
.sponsor-card a { color: var(--accent); text-decoration: none; font-weight: 700; }
.sponsor-card a:hover { text-decoration: underline; }

/* ── Responsive ── */
@media (max-width: 680px) {
  .hero-card       { grid-template-columns: 1fr; }
  .stats-row       { grid-template-columns: repeat(2, 1fr); }
  .info-row        { grid-template-columns: 1fr; }
  .info-cell       { border-right: none; border-bottom: 1px solid var(--border); }
  .about-grid      { grid-template-columns: 1fr; }
  .logistics-grid  { grid-template-columns: 1fr; }
  .contact-grid    { grid-template-columns: 1fr; }
  .photo-row       { grid-template-columns: 1fr; }
  .card            { padding: 20px 16px; }
  .site-header h1  { font-size: 1.8rem; }
}