:root {
  --bg-0: #f0f5ea;
  --bg-1: #e5efdd;
  --surface: rgba(252, 255, 249, 0.86);
  --surface-strong: #fbfff7;
  --ink: #18211a;
  --ink-muted: #4d5d50;
  --line: rgba(24, 33, 26, 0.14);
  --accent: #356f4f;
  --accent-strong: #28583e;
  --accent-soft: rgba(53, 111, 79, 0.16);
  --warm: #cb6f3a;
  --radius-xl: 24px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 10px;
  --shadow: 0 18px 48px rgba(21, 33, 25, 0.14);
  --max-w: 980px;
  --font-display: "Alegreya", "Georgia", serif;
  --font-ui: "Manrope", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-ui);
  background:
    radial-gradient(1000px 520px at -12% -18%, rgba(53, 111, 79, 0.18), transparent 58%),
    radial-gradient(860px 520px at 116% -14%, rgba(203, 111, 58, 0.2), transparent 56%),
    linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 100%);
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -100px;
  z-index: 20;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #fff;
}

.skip-link:focus {
  top: 10px;
}

.topbar,
.footer,
.shell {
  width: min(calc(100% - 28px), var(--max-w));
  margin: 0 auto;
}

.topbar,
.footer {
  margin-top: 18px;
  margin-bottom: 18px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.brand,
.day-pill,
.footer p {
  margin: 0;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.18rem;
  letter-spacing: 0.02em;
}

.day-pill {
  color: var(--ink-muted);
  font-size: 0.92rem;
}

.shell {
  display: grid;
  gap: 16px;
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 20px;
}

.hero {
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  right: -105px;
  bottom: -160px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-soft), transparent 72%);
}

.kicker {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

h1,
h2 {
  font-family: var(--font-display);
}

h1 {
  margin: 8px 0 10px;
  font-size: clamp(1.9rem, 3.8vw, 2.8rem);
  line-height: 1.08;
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(1.35rem, 2.2vw, 1.85rem);
}

.hero-copy {
  margin: 0;
  color: var(--ink-muted);
  max-width: 60ch;
}

.timer {
  display: grid;
  gap: 16px;
}

.mode-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.mode-btn,
.btn {
  min-height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--surface-strong);
  color: var(--ink);
  font: inherit;
  padding: 0 12px;
  cursor: pointer;
}

.mode-btn.is-active {
  background: var(--accent-soft);
  border-color: rgba(53, 111, 79, 0.44);
  color: var(--accent-strong);
}

.timer-core {
  display: grid;
  justify-items: center;
  gap: 10px;
}

.ring {
  --progress: 0;
  width: min(64vw, 280px);
  height: min(64vw, 280px);
  border-radius: 50%;
  display: grid;
  place-items: center;
  background:
    radial-gradient(var(--surface-strong) 58%, transparent 60%),
    conic-gradient(var(--accent) calc(var(--progress) * 1%), #d8e6d8 0);
}

.time {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 9vw, 4.4rem);
  line-height: 1;
}

.status {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.controls {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--accent);
  border-color: transparent;
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-strong);
}

.shortcut-note {
  margin: 0;
  text-align: center;
  color: var(--ink-muted);
  font-size: 0.88rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.stats article {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-strong);
  padding: 12px;
}

.label {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.value {
  margin: 8px 0 0;
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 700;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.settings-grid label {
  display: grid;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--ink-muted);
}

.settings-grid input[type="number"] {
  min-height: 42px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--surface-strong);
  padding: 0 12px;
  font: inherit;
  color: var(--ink);
}

.toggle {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 11px 12px;
  background: var(--surface-strong);
  display: flex;
  align-items: center;
  gap: 8px;
}

button:hover,
.mode-btn:hover,
.btn:hover {
  filter: brightness(0.98);
}

button:focus,
input:focus,
a:focus {
  outline: 2px solid var(--warm);
  outline-offset: 2px;
}

.footer a {
  color: var(--accent-strong);
}

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

.reveal-1,
.reveal-2,
.reveal-3,
.reveal-4 {
  opacity: 0;
  transform: translateY(10px);
  animation: reveal 460ms ease forwards;
}

.reveal-2 { animation-delay: 70ms; }
.reveal-3 { animation-delay: 140ms; }
.reveal-4 { animation-delay: 210ms; }

@keyframes reveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 860px) {
  .stats,
  .settings-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .topbar,
  .footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .reveal-1,
  .reveal-2,
  .reveal-3,
  .reveal-4 {
    opacity: 1;
    transform: none;
    animation: none;
  }
}