@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700;900&display=swap');

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

:root {
  --orange: #ff6b35;
  --gold: #f7c948;
  --green: #4aff6b;
  --blue: #4a9eff;
  --cyan: #35d0ff;
  --red: #ff4444;
  --bg: #0a0a0a;
  --bg2: #0f0f0f;
  --card: #161622;
  --border: #2a2a3a;
  --text: #f0f0f0;
  --muted: #888;
  --dim: #666;
  /* discipline colors */
  --swim: #35d0ff;
  --bike: #ff6b35;
  --run: #4aff6b;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

/* NAV */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10,10,10,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #1a1a1a;
  display: flex;
  align-items: center;
  padding: 0 30px;
  height: 56px;
}
nav .logo {
  font-weight: 900;
  font-size: 1.1rem;
  background: linear-gradient(135deg, var(--orange), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-right: 30px;
  text-decoration: none;
  white-space: nowrap;
}
nav a { color: var(--muted); text-decoration: none; font-size: 0.85rem; font-weight: 600; padding: 18px 12px; transition: color 0.2s; }
nav a:hover, nav a.active { color: var(--orange); }
nav .countdown { margin-left: auto; font-size: 0.85rem; color: var(--dim); white-space: nowrap; }
nav .countdown strong { color: var(--orange); font-size: 1.1rem; }

.page { padding-top: 56px; }

/* SECTIONS */
.slide {
  min-height: 100vh;
  padding: 60px 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  border-bottom: 1px solid #1a1a1a;
}
.slide:nth-child(odd) { background: var(--bg); }
.slide:nth-child(even) { background: var(--bg2); }
.slide-compact { min-height: auto; padding: 50px 80px; }

/* Title slide */
.slide-title { text-align: center; background: linear-gradient(135deg, #0a0a0a 0%, #1a0a2e 50%, #0a0a0a 100%); }
.slide-title.tri { background: linear-gradient(135deg, #0a0a0a 0%, #0a1a2e 45%, #1a0a2e 100%); }
.slide-title h1 {
  font-size: 4.5rem; font-weight: 900; letter-spacing: -2px;
  background: linear-gradient(135deg, var(--orange), var(--gold), var(--orange));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 20px;
}
.slide-title.tri h1 { background: linear-gradient(135deg, var(--swim), var(--gold), var(--orange)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.slide-title .subtitle { font-size: 1.8rem; font-weight: 300; color: var(--muted); margin-bottom: 40px; }
.slide-title .meta { font-size: 1.1rem; color: var(--dim); line-height: 2; }
.slide-title .meta strong { color: var(--orange); }

h2 { font-size: 2.8rem; font-weight: 900; letter-spacing: -1px; margin-bottom: 40px; color: var(--orange); }
h2 .number {
  display: inline-block; background: var(--orange); color: var(--bg);
  width: 50px; height: 50px; border-radius: 50%; text-align: center;
  line-height: 50px; font-size: 1.4rem; margin-right: 15px; vertical-align: middle;
}
h3 { font-size: 1.4rem; font-weight: 700; color: var(--gold); margin: 30px 0 15px 0; text-transform: uppercase; letter-spacing: 1px; }

p, li { font-size: 1.15rem; line-height: 1.8; color: #ccc; }
ul { list-style: none; padding: 0; }
ul li { padding: 8px 0 8px 30px; position: relative; }
ul li::before { content: '→'; position: absolute; left: 0; color: var(--orange); font-weight: 700; }

table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 1.05rem; }
thead th {
  background: var(--orange); color: var(--bg); padding: 14px 18px; text-align: left;
  font-weight: 700; font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.5px;
}
thead th:first-child { border-radius: 8px 0 0 0; }
thead th:last-child { border-radius: 0 8px 0 0; }
tbody td { padding: 12px 18px; border-bottom: 1px solid #222; color: #ccc; }
tbody tr:hover { background: #1a1a2e; }
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 25px; margin: 20px 0; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 30px; transition: transform 0.2s; }
.card:hover { transform: translateY(-3px); border-color: var(--orange); }
.card h4 { font-size: 1.2rem; color: var(--gold); margin-bottom: 12px; }
.card p { font-size: 1rem; color: #aaa; }

.warning { background: linear-gradient(135deg, #2a1a0a, #1a1a0a); border-left: 4px solid var(--orange); padding: 25px 30px; border-radius: 0 12px 12px 0; margin: 20px 0; }
.warning p { color: #f0c060; }
.info { background: linear-gradient(135deg, #0a1a2a, #0a1a1a); border-left: 4px solid var(--blue); padding: 25px 30px; border-radius: 0 12px 12px 0; margin: 20px 0; }
.info p { color: #8ac4ff; }
.success { background: linear-gradient(135deg, #0a2a1a, #0a1a0a); border-left: 4px solid var(--green); padding: 25px 30px; border-radius: 0 12px 12px 0; margin: 20px 0; }
.success p { color: #8affaa; }
.danger { background: linear-gradient(135deg, #2a0a0a, #1a0a0a); border-left: 4px solid var(--red); padding: 25px 30px; border-radius: 0 12px 12px 0; margin: 20px 0; }
.danger p { color: #ff9a9a; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.three-col { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 25px; }

.big-stat { text-align: center; padding: 20px; }
.big-stat .number-val { font-size: 4rem; font-weight: 900; color: var(--orange); }
.big-stat .label { font-size: 1rem; color: var(--dim); text-transform: uppercase; letter-spacing: 2px; }

.pace-band { display: flex; align-items: center; padding: 15px 20px; margin: 8px 0; border-radius: 10px; font-size: 1rem; }
.pace-band .km { font-weight: 700; color: var(--orange); width: 130px; flex-shrink: 0; }
.pace-band .pace { font-weight: 600; color: var(--gold); width: 150px; flex-shrink: 0; }
.pace-band .note { color: #aaa; }
.pace-band:nth-child(odd) { background: var(--card); }
.pace-band:nth-child(even) { background: #1a1a2e; }
.pace-band.danger-band { border-left: 3px solid var(--red); }
.pace-band.finish { border-left: 3px solid var(--green); }
.pace-band.swim-band { border-left: 3px solid var(--swim); }
.pace-band.bike-band { border-left: 3px solid var(--bike); }
.pace-band.run-band { border-left: 3px solid var(--run); }

.checklist { margin: 20px 0; }
.checklist-item { display: flex; align-items: center; padding: 12px 0; border-bottom: 1px solid #1a1a1a; font-size: 1.05rem; color: #ccc; }
.checklist-item .box { width: 24px; height: 24px; border: 2px solid var(--orange); border-radius: 5px; margin-right: 15px; flex-shrink: 0; }
.checklist-item.done .box { background: var(--green); border-color: var(--green); }
.checklist-item.done { color: var(--dim); text-decoration: line-through; }

.timeline { position: relative; padding-left: 40px; margin: 20px 0; }
.timeline::before { content: ''; position: absolute; left: 15px; top: 0; bottom: 0; width: 3px; background: linear-gradient(180deg, var(--swim), var(--orange), var(--green)); border-radius: 2px; }
.timeline-item { position: relative; margin-bottom: 30px; padding: 20px 25px; background: var(--card); border-radius: 10px; border: 1px solid var(--border); }
.timeline-item::before { content: ''; position: absolute; left: -33px; top: 25px; width: 13px; height: 13px; background: var(--orange); border-radius: 50%; border: 3px solid var(--bg); }
.timeline-item h4 { color: var(--orange); font-size: 1.1rem; margin-bottom: 8px; }
.timeline-item p { font-size: 0.95rem; color: #aaa; }

/* PROGRESS DASHBOARD */
.progress-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 15px; margin: 20px 0; }
.week-block { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; text-align: center; position: relative; }
.week-block.active { border-color: var(--orange); box-shadow: 0 0 20px rgba(255,107,53,0.2); }
.week-block.completed { border-color: var(--green); }
.week-block .week-num { font-size: 0.8rem; color: var(--dim); text-transform: uppercase; letter-spacing: 1px; }
.week-block .week-dates { font-size: 0.75rem; color: #555; margin: 5px 0; }
.week-block .week-km { font-size: 2rem; font-weight: 900; color: var(--orange); margin: 10px 0; }
.week-block .week-target { font-size: 0.8rem; color: var(--dim); }
.week-block .week-status { display: inline-block; margin-top: 10px; padding: 3px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 600; }
.week-block .week-status.todo { background: #2a2a3a; color: var(--dim); }
.week-block .week-status.current { background: var(--orange); color: var(--bg); }
.week-block .week-status.done { background: var(--green); color: var(--bg); }

/* Tri week block: 3 discipline bars */
.tri-bar { margin: 8px 0 2px; text-align: left; }
.tri-bar .tri-label { display: flex; justify-content: space-between; font-size: 0.7rem; color: var(--dim); margin-bottom: 2px; }
.tri-bar .bar { background: #2a2a3a; border-radius: 4px; height: 6px; overflow: hidden; }
.tri-bar .bar > div { height: 6px; border-radius: 4px; transition: width 0.5s; }
.tri-bar.swim .bar > div { background: var(--swim); }
.tri-bar.bike .bar > div { background: var(--bike); }
.tri-bar.run .bar > div { background: var(--run); }

/* ACTIVITY LOG */
.run-log { margin: 20px 0; }
.run-entry { display: grid; grid-template-columns: 90px 70px 90px 90px 100px 70px 1fr; padding: 12px 18px; border-bottom: 1px solid #1a1a1a; font-size: 0.95rem; align-items: center; }
.run-entry.header { font-weight: 700; color: var(--muted); text-transform: uppercase; font-size: 0.8rem; letter-spacing: 0.5px; border-bottom: 2px solid var(--border); }
.run-entry .date { color: var(--gold); font-weight: 600; }
.run-entry .dist { color: var(--orange); font-weight: 700; }
.sport-badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; }
.sport-badge.Run { background: rgba(74,255,107,0.15); color: var(--run); }
.sport-badge.Ride { background: rgba(255,107,53,0.15); color: var(--bike); }
.sport-badge.Swim { background: rgba(53,208,255,0.15); color: var(--swim); }
.sport-badge.Other { background: #2a2a3a; color: var(--muted); }

/* HUB: challenge cards */
.challenge-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 30px; margin: 30px 0; }
.challenge-card {
  display: block; text-decoration: none;
  background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 35px; position: relative; overflow: hidden; transition: transform 0.2s, border-color 0.2s;
}
.challenge-card:hover { transform: translateY(-5px); border-color: var(--orange); }
.challenge-card .status { display: inline-block; padding: 4px 14px; border-radius: 20px; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 18px; }
.challenge-card .status.done { background: var(--green); color: var(--bg); }
.challenge-card .status.live { background: var(--orange); color: var(--bg); animation: pulse 2s infinite; }
.challenge-card .status.future { background: #2a2a3a; color: var(--muted); }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.6; } }
.challenge-card h3 { margin: 0 0 6px; font-size: 1.6rem; color: var(--text); text-transform: none; letter-spacing: 0; }
.challenge-card .sub { color: var(--dim); font-size: 0.95rem; margin-bottom: 20px; }
.challenge-card .headline { font-size: 2.6rem; font-weight: 900; color: var(--orange); margin: 10px 0; }
.challenge-card .headline.green { color: var(--green); }
.challenge-card .detail { color: var(--muted); font-size: 0.9rem; line-height: 1.6; }
.challenge-card .disciplines { margin-top: 18px; display: flex; gap: 8px; flex-wrap: wrap; }

.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 20px; margin: 30px 0; }

/* Barney Stinson rubber stamp */
.stamp {
  display: inline-block;
  margin: 28px auto 34px;
  padding: 12px 34px;
  border: 4px solid var(--orange);
  border-radius: 10px;
  color: var(--orange);
  font-weight: 900;
  font-size: 1.6rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  transform: rotate(-6deg);
  opacity: 0;
  animation: stampIn 0.45s cubic-bezier(0.25, 1.4, 0.5, 1) 0.5s forwards;
  box-shadow: 0 0 0 2px rgba(255,107,53,0.15), inset 0 0 0 1px rgba(255,107,53,0.25);
  mask-image: radial-gradient(circle at 50% 50%, black 92%, transparent 100%);
}
@keyframes stampIn {
  0% { opacity: 0; transform: rotate(-14deg) scale(3); }
  70% { opacity: 1; transform: rotate(-5deg) scale(0.95); }
  100% { opacity: 1; transform: rotate(-6deg) scale(1); }
}
.legendary { margin-top: 26px; font-size: 1rem; color: var(--dim); font-style: italic; }
.legendary .wait { color: var(--gold); font-style: normal; font-weight: 700; }
@media (max-width: 600px) {
  .stamp { font-size: 1.1rem; padding: 10px 20px; letter-spacing: 2px; }
}

.slide-number { position: absolute; bottom: 30px; right: 40px; color: #333; font-size: 0.9rem; font-weight: 600; }

.nav-toggle { display: none; background: none; border: none; color: var(--muted); font-size: 1.5rem; cursor: pointer; padding: 5px; }
.nav-links { display: flex; align-items: center; }

/* TABLET */
@media (max-width: 900px) {
  .slide { padding: 40px 30px; }
  .slide-compact { padding: 35px 30px; }
  .slide-title h1 { font-size: 3rem; }
  h2 { font-size: 2.2rem; }
  .two-col, .three-col { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr 1fr; }
  .progress-grid { grid-template-columns: repeat(3, 1fr); }
  nav { padding: 0 15px; }
  nav a { font-size: 0.75rem; padding: 18px 6px; }
}

/* MOBILE */
@media (max-width: 600px) {
  .slide { padding: 30px 16px; min-height: auto; }
  .slide-compact { padding: 25px 16px; }
  .slide-title { padding: 40px 16px; min-height: 80vh; }
  .slide-title h1 { font-size: 2.2rem; letter-spacing: -1px; }
  .slide-title .subtitle { font-size: 1.2rem; margin-bottom: 25px; }
  .slide-title .meta { font-size: 0.9rem; line-height: 1.8; }

  h2 { font-size: 1.6rem; margin-bottom: 25px; }
  h2 .number { width: 36px; height: 36px; line-height: 36px; font-size: 1rem; margin-right: 10px; }
  h3 { font-size: 1.1rem; margin: 20px 0 10px 0; }
  p, li { font-size: 1rem; line-height: 1.7; }

  nav { padding: 0 12px; height: 50px; flex-wrap: wrap; }
  nav .logo { font-size: 0.95rem; margin-right: auto; }
  nav .countdown { display: none; }
  .nav-toggle { display: block; }
  .nav-links {
    display: none; width: 100%; flex-direction: column;
    background: rgba(10,10,10,0.98); position: absolute; top: 50px; left: 0; right: 0;
    padding: 10px 0; border-bottom: 1px solid #222; z-index: 101;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 20px; width: 100%; font-size: 0.9rem; }
  .nav-links a:hover { background: #1a1a1a; }
  .mobile-countdown {
    display: block; width: 100%; text-align: center; font-size: 0.8rem;
    color: var(--dim); padding: 6px 0; border-bottom: 1px solid #1a1a1a; background: var(--bg);
  }

  .progress-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .week-block { padding: 15px 10px; }
  .week-block .week-km { font-size: 1.6rem; }

  .run-entry.header { display: none; }
  .run-entry { display: flex; flex-wrap: wrap; padding: 14px 0; gap: 4px 12px; font-size: 0.9rem; }
  .run-entry .date { font-size: 0.95rem; width: 100%; margin-bottom: 2px; }

  table { font-size: 0.9rem; min-width: 500px; }
  thead th { padding: 10px 12px; font-size: 0.8rem; }
  tbody td { padding: 10px 12px; }

  .card-grid { grid-template-columns: 1fr; gap: 15px; }
  .card { padding: 20px; }
  .card h4 { font-size: 1.05rem; }
  .card p { font-size: 0.9rem; }

  .challenge-grid { grid-template-columns: 1fr; }
  .challenge-card { padding: 25px; }
  .challenge-card .headline { font-size: 2rem; }

  .pace-band { flex-wrap: wrap; padding: 12px 14px; gap: 4px; }
  .pace-band .km { width: 100px; font-size: 0.9rem; }
  .pace-band .pace { width: 120px; font-size: 0.9rem; }
  .pace-band .note { width: 100%; font-size: 0.85rem; margin-top: 2px; }

  .warning, .info, .success, .danger { padding: 18px 16px; }
  .warning p, .info p, .success p, .danger p { font-size: 0.95rem; }

  .checklist-item { font-size: 0.95rem; padding: 10px 0; }
  .checklist-item .box { width: 20px; height: 20px; margin-right: 12px; }

  .timeline { padding-left: 30px; }
  .big-stat .number-val { font-size: 2.6rem; }
  .slide-number { display: none; }
}