:root {
  color-scheme: light;
  --bg: #f7f2e8;
  --panel: #ffffff;
  --ink: #1c1c1c;
  --muted: #5a5a5a;
  --primary: #0d5f4b;
  --primary-dark: #084237;
  --danger: #c0392b;
  --danger-dark: #8e2b22;
  --border: #d8d2c9;
  --focus: #f4b400;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Trebuchet MS", "Verdana", "Tahoma", sans-serif;
  background: radial-gradient(circle at top, #ffffff 0%, #f7f2e8 50%, #f0e7da 100%);
  color: var(--ink);
}

body.mode-live {
  overflow: hidden;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 2px solid var(--border);
  background: var(--panel);
  position: sticky;
  top: 0;
  z-index: 5;
}

.header-home {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  background: transparent;
  border: none;
  padding: 0;
  margin: 0;
  text-align: left;
  cursor: pointer;
}

.header-home h1,
.header-home .eyebrow {
  pointer-events: none;
}

.header-actions {
  display: flex;
  gap: 8px;
}

.app-header h1 {
  margin: 4px 0 0;
  font-size: 1.5rem;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

main {
  padding: 16px 20px 40px;
}

.screen {
  display: none;
  gap: 16px;
}

.screen.active {
  display: flex;
  flex-direction: column;
}

#screen-setup {
  min-height: calc(100vh - 90px);
}

#screen-setup #start-setup {
  margin-top: auto;
}

.screen.live {
  min-height: calc(100vh - 90px);
}

h2 {
  margin: 0 0 8px;
  font-size: 1.35rem;
}

h3 {
  margin: 0 0 8px;
}

.card {
  background: var(--panel);
  border: 2px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-weight: 600;
}

select,
input,
textarea {
  border-radius: 12px;
  border: 2px solid var(--border);
  padding: 12px 14px;
  font-size: 1rem;
  font-family: inherit;
}

textarea {
  min-height: 80px;
  resize: vertical;
}

.inline {
  display: flex;
  gap: 10px;
}

.inline input {
  flex: 1;
}

button {
  border: none;
  border-radius: 14px;
  padding: 12px 16px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.1s ease, background 0.2s ease;
}

button:active {
  transform: scale(0.98);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

button:focus-visible,
select:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

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

.primary:hover {
  background: var(--primary-dark);
}

.ghost {
  background: transparent;
  border: 2px solid var(--border);
  color: var(--ink);
}

.danger {
  background: var(--danger);
  color: #fff;
}

.danger:hover {
  background: var(--danger-dark);
}

.xl {
  font-size: 1.2rem;
  padding: 16px 18px;
}

.muted {
  color: var(--muted);
  margin: 0;
}

.center {
  text-align: center;
}

.athlete-list {
  display: grid;
  gap: 10px;
}

.athlete-pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #f2ede3;
  border-radius: 12px;
  padding: 10px 12px;
  border: 2px solid var(--border);
  gap: 12px;
}

.athlete-pill label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}

.athlete-actions {
  display: flex;
  gap: 8px;
}

.lap-input {
  display: grid;
  gap: 6px;
}

.live-header {
  display: grid;
  grid-template-columns: 60px 1fr 60px;
  align-items: center;
  gap: 8px;
}

.live-header > div {
  text-align: center;
}

.live-header.single {
  grid-template-columns: 1fr;
  justify-items: center;
}

.live-timer {
  font-size: 2.6rem;
  font-weight: 800;
  text-align: center;
  background: var(--panel);
  border-radius: 20px;
  padding: 20px;
  border: 3px solid var(--border);
}

.live-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
}

.live-actions {
  display: grid;
  gap: 12px;
  width: 100%;
}

.live-actions button {
  text-align: center;
  width: 100%;
}

.results-list,
.history-list {
  display: grid;
  gap: 14px;
}

.result-card {
  background: var(--panel);
  border-radius: 16px;
  border: 2px solid var(--border);
  padding: 16px;
  display: grid;
  gap: 8px;
}

.split-list {
  display: grid;
  gap: 6px;
}

.live-average {
  font-weight: 700;
}

.live-split.fast {
  color: #0d5f4b;
}

.live-split.slow {
  color: #b03a2e;
}

.live-split.best {
  font-weight: 800;
}

.stack {
  display: grid;
  gap: 12px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (min-width: 720px) {
  main {
    max-width: 720px;
    margin: 0 auto;
  }
}