:root {
  --bg-a: #2f58ff;
  --bg-b: #732bdf;
  --bg-c: #14b8b1;
  --glass: rgba(255, 255, 255, 0.16);
  --glass-border: rgba(255, 255, 255, 0.33);
  --text: #f7f8ff;
  --deep-blue: #193169;
  --good: #00b96b;
  --bad-word: #df3f61;
  --bad-letters: #131313;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", "Poppins", system-ui, sans-serif;
  color: var(--text);
  background: linear-gradient(-45deg, var(--bg-a), var(--bg-b), var(--bg-c), #3a7eff);
  background-size: 300% 300%;
  animation: bg-shift 14s ease infinite;
  display: grid;
  grid-template-rows: 1fr auto;
}

body.shake {
  animation: bg-shift 14s ease infinite, screen-shake 0.5s ease;
}

.background-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.25), transparent 35%),
    radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.2), transparent 35%);
}

.app-shell {
  width: min(1200px, 95vw);
  margin: 1rem auto;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 1rem;
  height: 100%;
  min-height: 0;
}

h1,
h2,
p {
  margin: 0;
}

.icon-btn {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
}

.layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  min-height: calc(100dvh - 8rem);
}

.glass {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  border-radius: 18px;
  box-shadow: 0 14px 35px rgba(10, 12, 39, 0.25);
}

.clock-panel {
  padding: 1rem;
  min-height: 100%;
  display: grid;
}

.clock-left {
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.right-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 0;
}

.logo-placeholder {
  display: block;
  max-width: 250px;
  height: auto;
  margin: 0 auto;
}

#clock-svg {
  width: 100%;
  height: auto;
  max-height: min(74vh, 100%);
}

#clock-svg.timeout-glow {
  filter: drop-shadow(0 0 18px rgba(220, 40, 60, 0.95)) drop-shadow(0 0 40px rgba(220, 40, 60, 0.7))
    drop-shadow(0 0 70px rgba(220, 40, 60, 0.45));
}

.clock-track,
.clock-elapsed {
  fill: none;
  stroke-width: 14;
  transform: rotate(-90deg);
  transform-origin: 120px 120px;
}

.clock-track {
  stroke: rgba(255, 255, 255, 0.2);
}

.clock-elapsed {
  stroke: #fff;
  stroke-linecap: round;
}

#clock-hand {
  stroke: #fff;
  stroke-width: 5;
  stroke-linecap: round;
  transform-origin: 120px 120px;
}

.clock-core {
  fill: #fff;
}

.letter-board {
  display: grid;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  gap: 0.6rem;
  min-height: 4.5rem;
}

.board-panel {
  padding: 1rem;
  display: grid;
  gap: 1rem;
}

.tile {
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 3em;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--deep-blue);
  box-shadow: 0 10px 16px rgba(26, 38, 66, 0.24);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

tile:hover {
  transform: translateY(-2px) scale(1.06);
  box-shadow: 0 14px 22px rgba(26, 38, 66, 0.35);
}

tile.pop-in {
  animation: pop 0.42s cubic-bezier(0.2, 0.9, 0.2, 1.15);
}

.control-row,
.action-row,
.submit-row {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.control-row,
.action-row {
  justify-content: center;
}

button,
input {
  border: 0;
  border-radius: 12px;
  font: inherit;
}

button {
  padding: 0.7rem 1rem;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(135deg, #2744c7, #1b2863);
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(20, 24, 66, 0.35);
}

.glass-btn {
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--deep-blue);
  box-shadow: 0 4px 16px rgba(10, 12, 39, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.glass-btn:hover {
  background: rgba(255, 255, 255, 0.28);
  box-shadow: 0 6px 20px rgba(10, 12, 39, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

button:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.word-panel {
  padding: 1rem;
}

#word-form {
  display: grid;
  gap: 0.5rem;
}

.guess-list {
  list-style: none;
  margin: 0;
  padding: 0.4rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.guess-list li {
  font-size: 0.88rem;
  opacity: 0.9;
}

input[type="text"] {
  flex: 1;
  min-width: 11rem;
  padding: 0.72rem 0.9rem;
}

#submit-btn {
  background: var(--deep-blue);
}

#submit-btn.correct {
  background: var(--good);
  animation: pulse-feedback 0.35s ease;
}

#submit-btn.incorrect {
  background: var(--bad-word);
  animation: pulse-feedback 0.35s ease;
}

#submit-btn.bad {
  background: var(--bad-letters);
  animation: shake 0.35s ease;
}

.settings-panel {
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  width: min(320px, 86vw);
  transform: translateX(110%);
  transition: transform 0.3s ease;
  padding: 1.2rem;
  display: grid;
  align-content: start;
  gap: 0.7rem;
  z-index: 4;
}

.settings-panel.open {
  transform: translateX(0);
}

footer {
  text-align: center;
  padding: 0.8rem 1rem 1.2rem;
  color: rgba(255, 255, 255, 0.95);
}

@keyframes pop {
  0% {
    transform: scale(0);
  }
  75% {
    transform: scale(1.08);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes pulse-feedback {
  0% {
    transform: scale(0.95);
  }
  70% {
    transform: scale(1.03);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes shake {
  20%,
  60% {
    transform: translateX(-3px);
  }
  40%,
  80% {
    transform: translateX(3px);
  }
}

@keyframes bg-shift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

@keyframes screen-shake {
  0%,
  100% {
    transform: translateX(0);
  }
  15% {
    transform: translateX(-8px);
  }
  30% {
    transform: translateX(8px);
  }
  45% {
    transform: translateX(-6px);
  }
  60% {
    transform: translateX(6px);
  }
  75% {
    transform: translateX(-4px);
  }
  90% {
    transform: translateX(4px);
  }
}

@media (max-width: 700px) {
  .layout {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .letter-board {
    grid-template-columns: repeat(3, 1fr);
  }
}