:root {
  --bg-0: #070b14;
  --bg-1: #0d1424;
  --text: #edf3ff;
  --muted: #8ea4c9;
  --line: #263a5d;
  --accent: #17b8b4;
  --accent-strong: #10938f;
  --warn: #ffb14a;
  --danger: #ff5f54;
  --radius-xl: 34px;
  --radius-lg: 18px;
  --shadow: 0 30px 60px rgba(3, 9, 22, 0.48);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Sora", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 12%, rgba(52, 215, 198, 0.1), transparent 26%),
    radial-gradient(circle at 88% 86%, rgba(40, 84, 170, 0.16), transparent 24%),
    linear-gradient(170deg, var(--bg-0), var(--bg-1) 45%, #0b1220 100%);
  display: grid;
  place-items: center;
  padding: 20px;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(147, 176, 224, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(147, 176, 224, 0.045) 1px, transparent 1px);
  background-size: 52px 52px;
  opacity: 0.45;
  z-index: -1;
}

.app-shell {
  width: min(1080px, 100%);
}

.panel {
  position: relative;
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: clamp(22px, 3vw, 34px);
}

.hidden,
.view.hidden {
  display: none;
}

.menu-panel,
.setup-panel {
  background:
    radial-gradient(circle at 90% 15%, rgba(52, 215, 198, 0.14), transparent 35%),
    linear-gradient(170deg, #121d32, #10192d);
}

.timer-panel {
  padding: clamp(14px, 2.2vw, 22px);
  background:
    radial-gradient(circle at 50% -10%, rgba(52, 215, 198, 0.18), transparent 34%),
    linear-gradient(175deg, #0c162b, #0a1222);
}

.panel-header h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 2.9rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
}

.brand-row {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
}

.brand-logo {
  width: min(220px, 56vw);
  height: auto;
  display: block;
}

.eyebrow {
  margin: 0 0 10px;
  color: #6ce7da;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 700;
}

.subtext {
  margin: 10px 0 0;
  color: var(--muted);
  max-width: 60ch;
}

.menu-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.menu-card {
  border: 1px solid rgba(120, 152, 206, 0.28);
  border-radius: 28px;
  background:
    radial-gradient(circle at 85% 18%, rgba(52, 215, 198, 0.14), transparent 28%),
    linear-gradient(180deg, rgba(12, 21, 42, 0.98), rgba(9, 17, 31, 0.98));
  color: inherit;
  text-align: left;
  padding: 24px;
  display: grid;
  gap: 10px;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(236, 244, 255, 0.03);
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.menu-card:hover,
.menu-card:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(108, 231, 218, 0.45);
  box-shadow:
    0 18px 34px rgba(2, 8, 20, 0.34),
    inset 0 1px 0 rgba(236, 244, 255, 0.05);
}

.menu-card:focus-visible,
.back-btn:focus-visible,
.clock-card:focus-visible,
input[type="number"]:focus-visible,
.btn:focus-visible {
  outline: 2px solid rgba(125, 238, 227, 0.9);
  outline-offset: 4px;
}

.menu-card-tag {
  color: #6ce7da;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 700;
}

.menu-card-title {
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  line-height: 1.15;
}

.menu-card-copy {
  color: #a9bbdc;
  line-height: 1.6;
}

.back-btn {
  width: 46px;
  height: 46px;
  border: 1px solid rgba(139, 167, 214, 0.26);
  border-radius: 14px;
  background: rgba(139, 167, 214, 0.14);
  color: #edf3ff;
  font-size: 1.35rem;
  line-height: 1;
  display: inline-grid;
  place-items: center;
  cursor: pointer;
  transition: transform 120ms ease, filter 120ms ease, background 120ms ease;
}

.back-btn:hover {
  transform: translateX(-1px);
  filter: brightness(1.05);
  background: rgba(139, 167, 214, 0.22);
}

.setup-panel .panel-header {
  margin-top: 18px;
}

.setup-form {
  margin-top: 26px;
  display: grid;
  gap: 10px;
}

.setup-form label {
  color: #cfdef8;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.input-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

input[type="number"] {
  width: 100%;
  border: 1px solid #2f436a;
  border-radius: var(--radius-lg);
  background: #0a1529;
  color: #f3f7ff;
  font-size: 1.2rem;
  font-weight: 700;
  padding: 14px 16px;
  font-family: "JetBrains Mono", monospace;
}

.hint {
  margin: 0;
  color: #91a8cf;
  font-size: 0.9rem;
}

.resume-row {
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.resume-note {
  margin: 0;
  color: #b8c9e9;
  font-size: 0.92rem;
}

.clock-card {
  position: relative;
  min-height: min(74vh, 760px);
  border-radius: calc(var(--radius-xl) - 6px);
  border: 1px solid #223658;
  background:
    radial-gradient(circle at 50% 30%, rgba(52, 215, 198, 0.16), transparent 46%),
    linear-gradient(180deg, #0b152b, #0a1428 44%, #091224);
  display: grid;
  place-items: center;
  padding: clamp(18px, 3vw, 28px);
  cursor: pointer;
  overflow: hidden;
}

.clock-card::before {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 28px;
  border: 1px solid rgba(120, 152, 206, 0.22);
}

.clock-stack {
  width: min(620px, 88vw);
  aspect-ratio: 1 / 1;
  position: relative;
  display: grid;
  place-items: center;
  z-index: 1;
}

.center-brand {
  position: absolute;
  top: 29%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
  pointer-events: none;
}

.center-logo {
  width: clamp(74px, 9vw, 110px);
  height: auto;
  display: block;
  opacity: 0.94;
  filter: drop-shadow(0 8px 16px rgba(1, 4, 12, 0.4));
}

.clock-stack::before {
  content: "";
  position: absolute;
  inset: 14%;
  border-radius: 50%;
  background: radial-gradient(circle at 46% 35%, rgba(52, 215, 198, 0.12), rgba(52, 215, 198, 0) 62%);
}

.clock-stack::after {
  content: "";
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  background: repeating-conic-gradient(
    from -90deg,
    rgba(125, 154, 198, 0.44) 0deg 0.9deg,
    transparent 0.9deg 6deg
  );
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 11px), #000 calc(100% - 10px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 11px), #000 calc(100% - 10px));
  opacity: 0.6;
}

.ring {
  width: 100%;
  height: 100%;
}

.ring-track,
.ring-progress {
  fill: none;
  stroke-width: 14;
}

.ring-track {
  stroke: rgba(152, 176, 216, 0.2);
}

.ring-progress {
  stroke: var(--accent);
  stroke-linecap: round;
  transform: rotate(-90deg);
  transform-origin: 50% 50%;
  filter: drop-shadow(0 0 10px rgba(23, 184, 180, 0.34));
  transition: stroke 160ms ease, stroke-dashoffset 160ms linear;
}

.time-readout {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 14px;
  padding: 0 32px;
  text-align: center;
}

.time-primary {
  font-family: "JetBrains Mono", monospace;
  font-size: clamp(2.8rem, 7.8vw, 5.95rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.05em;
  color: #f5f9ff;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 8px 22px rgba(2, 6, 17, 0.64);
}

.time-meta {
  font-family: "JetBrains Mono", monospace;
  font-size: clamp(0.82rem, 1.7vw, 1.08rem);
  color: #9eb6de;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
}

.controls {
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 10px);
  display: flex;
  justify-content: center;
  gap: 12px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 170ms ease, transform 170ms ease;
  z-index: 3;
}

.controls.show {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.btn {
  border: none;
  border-radius: 13px;
  padding: 11px 18px;
  font-family: "Sora", sans-serif;
  font-size: 0.96rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform 120ms ease, filter 120ms ease;
}

.btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

.btn:active {
  transform: translateY(0);
}

.btn:disabled {
  opacity: 0.55;
  cursor: default;
}

.btn-primary {
  background: linear-gradient(150deg, #3ce2d0, #1eb5a8);
  color: #05211e;
}

.btn-secondary {
  background: #e6f0ff;
  color: #0d203f;
}

.btn-ghost {
  background: rgba(139, 167, 214, 0.2);
  color: #d7e5ff;
  border: 1px solid rgba(139, 167, 214, 0.26);
}

#countdownPanel.warning .ring-progress {
  stroke: var(--warn);
  filter: drop-shadow(0 0 10px rgba(255, 177, 74, 0.28));
}

#countdownPanel.warning .time-primary {
  color: #ffefcf;
}

#countdownPanel.danger .ring-progress {
  stroke: var(--danger);
  filter: drop-shadow(0 0 11px rgba(255, 95, 84, 0.32));
}

#countdownPanel.danger .time-primary {
  color: #ffd7d4;
}

#stopwatchPanel.paused .time-primary {
  color: #dce8ff;
}

#stopwatchPanel.paused .time-meta {
  color: #adc1e4;
}

@media (max-width: 760px) {
  body {
    padding: 12px;
  }

  .panel {
    padding: 20px;
  }

  .menu-grid {
    grid-template-columns: 1fr;
  }

  .input-row {
    grid-template-columns: 1fr;
  }

  .clock-card {
    min-height: min(72vh, 620px);
  }

  .controls {
    width: calc(100% - 28px);
    flex-wrap: wrap;
    gap: 10px;
  }

  .controls .btn {
    flex: 1 1 130px;
  }

  .center-logo {
    width: clamp(60px, 15vw, 88px);
  }

  .time-readout {
    gap: 10px;
    padding: 0 24px;
  }

  .time-primary {
    font-size: clamp(2.3rem, 10.4vw, 4rem);
  }

  .time-meta {
    font-size: clamp(0.7rem, 2.5vw, 0.96rem);
    letter-spacing: 0.08em;
  }
}