/* T-bar Challenge — mobile-first, 390×844 portrait */

:root {
  --blue: #0c3f60;
  --blue-deep: #08283d;
  --silver: #96989b;
  --ink: #1c1c1c;
  --muted: #5e6164;
  --paper: #f5f3ee;
  --card: #fffcf7;
  --line: #d4d1c8;
  --tee: #4d6573;
  --ok: #2c6e49;
  --ok-bg: #dcecdc;
  --bad: #9b2c2c;
  --bad-bg: #f8d0d0;
  --warn: #8a5a12;
  --warn-bg: #f8e3a8;
  --shadow: 0 1px 2px rgba(28, 28, 28, 0.06);
  --safe-bottom: max(12px, env(safe-area-inset-bottom));
  --safe-top: max(12px, env(safe-area-inset-top));
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.4;
}

body {
  overscroll-behavior: none;
}

#app {
  min-height: 100%;
  min-height: 100dvh;
  max-width: 430px;
  margin: 0 auto;
  position: relative;
  background: var(--paper);
}

.screen {
  min-height: 100dvh;
  padding: var(--safe-top) 20px var(--safe-bottom);
  display: flex;
  flex-direction: column;
}

.hidden { display: none !important; }

/* ---------- Start ---------- */

#screen-start {
  justify-content: flex-start;
}

.start-logo {
  display: block;
  width: min(250px, 72%);
  height: auto;
  margin: 18px auto 16px;
}

.start-kicker {
  text-align: center;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 4px;
}

h1 {
  margin: 0 0 6px;
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--blue);
}

.byline {
  text-align: center;
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 13px;
}

.hire-callout {
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: 8px;
  padding: 12px 14px;
  margin: 0 0 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--blue-deep);
}

.how h2 {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 6px;
  font-weight: 600;
  text-align: left;
}

.how p {
  margin: 0 0 16px;
  font-size: 14px;
  color: var(--ink);
}

.btn {
  display: block;
  width: 100%;
  appearance: none;
  border: 0;
  border-radius: 8px;
  padding: 14px 16px;
  font: inherit;
  font-size: 17px;
  font-weight: 650;
  cursor: pointer;
  text-align: center;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--blue);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--blue);
  border: 1px solid var(--line);
}

.btn-row {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.btn-row .btn { flex: 1; }

.leader {
  margin-top: 20px;
  flex: 1;
}

.leader h2 {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 8px;
  font-weight: 600;
}

.leader-empty {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
}

.leader ol {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  overflow: hidden;
}

.leader li {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 12px;
  font-size: 13px;
  border-top: 1px solid var(--line);
}

.leader li:first-child { border-top: 0; }

.leader .score {
  font-variant-numeric: tabular-nums;
  font-weight: 650;
  color: var(--blue);
}

.leader .meta { color: var(--muted); }

.fineprint {
  margin: 16px 0 8px;
  font-size: 10px;
  line-height: 1.45;
  color: var(--muted);
  text-align: center;
}

/* ---------- Play ---------- */

#screen-play {
  padding: var(--safe-top) 12px var(--safe-bottom);
  height: 100dvh;
  max-height: 100dvh;
  overflow: hidden;
}

.play-top {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  flex-shrink: 0;
}

.play-logo {
  width: 92px;
  height: auto;
  flex-shrink: 0;
}

.play-title {
  flex: 1;
  font-size: 13px;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: -0.01em;
}

.timer {
  font-variant-numeric: tabular-nums;
  font-weight: 650;
  font-size: 15px;
  color: var(--ink);
  min-width: 48px;
  text-align: right;
}

.play-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin: 4px 0 6px;
  flex-shrink: 0;
  font-size: 13px;
}

.play-meta .level-name { font-weight: 650; }

.play-meta .level-name .pro-badge {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--blue);
  color: #fff;
  font-size: 10px;
  letter-spacing: 0.08em;
  vertical-align: 1px;
}

.tile-tag {
  color: var(--muted);
  font-size: 12px;
}

.rule-hint {
  margin: 0 0 6px;
  font-size: 11px;
  color: var(--muted);
  flex-shrink: 0;
}

#plan {
  flex: 1 1 auto;
  min-height: 240px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  position: relative;
  touch-action: none;
  overflow: hidden;
  user-select: none;
}

#plan svg {
  display: block;
  width: 100%;
  height: 100%;
}

#plan.dragging { cursor: grabbing; }

.readout {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 4px;
  margin: 8px 0;
  flex-shrink: 0;
}

.readout .cell {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 5px 4px 4px;
  text-align: center;
  min-height: 40px;
}

.readout .dir {
  display: block;
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.readout .val {
  display: block;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 13px;
  color: var(--ink);
}

.readout .cell.ok { background: var(--ok-bg); border-color: #b7d0bc; }
.readout .cell.ok .val { color: var(--ok); }
.readout .cell.warn { background: var(--warn-bg); border-color: #e0c36a; }
.readout .cell.warn .val { color: var(--warn); }
.readout .cell.bad { background: var(--bad-bg); border-color: #e0a3a3; }
.readout .cell.bad .val { color: var(--bad); }

.readout .val small {
  display: block;
  font-size: 9px;
  font-weight: 550;
  letter-spacing: 0;
}

.play-actions {
  flex-shrink: 0;
  display: flex;
  gap: 10px;
  align-items: stretch;
  margin-bottom: 4px;
}

.play-actions .btn-primary {
  flex: 1;
  padding: 12px 12px;
  font-size: 16px;
  align-self: center;
  height: 48px;
}

.dpad {
  display: grid;
  grid-template-columns: 44px 44px 44px;
  grid-template-rows: 44px 44px 44px;
  gap: 4px;
  flex-shrink: 0;
}

.dpad button {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 8px;
  color: var(--blue);
  font-size: 18px;
  font-weight: 700;
  padding: 0;
  cursor: pointer;
}

.dpad button:active { background: #eae7df; }

.dpad .n { grid-column: 2; grid-row: 1; }
.dpad .w { grid-column: 1; grid-row: 2; }
.dpad .reset { grid-column: 2; grid-row: 2; font-size: 9px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); font-weight: 650; }
.dpad .e { grid-column: 3; grid-row: 2; }
.dpad .s { grid-column: 2; grid-row: 3; }

/* ---------- Overlay ---------- */

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 40, 61, 0.46);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 20;
  padding: 12px 12px var(--safe-bottom);
}

.sheet {
  background: var(--card);
  border-radius: 14px 14px 10px 10px;
  width: 100%;
  max-width: 430px;
  padding: 20px 18px 16px;
  box-shadow: 0 -8px 24px rgba(8, 40, 61, 0.12);
  max-height: 80dvh;
  overflow: auto;
}

.sheet h2 {
  margin: 0 0 8px;
  font-size: 20px;
  color: var(--blue);
}

.sheet.ok h2 { color: var(--ok); }
.sheet.bad h2 { color: var(--bad); }

.sheet p { margin: 0 0 10px; font-size: 14px; }

.issues {
  margin: 0 0 14px;
  padding: 0 0 0 18px;
  font-size: 14px;
}

.issues li { margin: 0 0 6px; }

.score-line {
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  margin: 0 0 14px;
  color: var(--ink);
}

/* ---------- Win ---------- */

#screen-win {
  justify-content: flex-start;
}

#screen-win .start-logo { margin-top: 12px; }

.code-box {
  margin: 8px 0 14px;
  padding: 12px 10px;
  border: 1px dashed var(--blue);
  border-radius: 8px;
  background: #eef3f6;
  text-align: center;
}

.code-box .label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}

.code-box .code {
  display: block;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--blue-deep);
  word-break: break-all;
}

.apply-note {
  font-size: 14px;
  margin: 0 0 8px;
}

#screen-win .stats {
  margin: 0 0 16px;
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  text-align: center;
  color: var(--muted);
}

#screen-win .fineprint { margin-top: auto; }