:root {
  --surface: rgba(255, 255, 255, 0.9);
  --panel: rgba(255, 255, 255, 0.76);
  --field: #f8f7f1;
  --text: #111111;
  --muted: #3d4b4a;
  --accent: #2f9fd2;
  --accent-strong: #15749d;
  --coral: #ff7f9c;
  --violet: #9277ff;
  --gold: #ffd166;
  --border: rgba(0, 0, 0, 0.14);
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.16);
  --radius-lg: 24px;
  --radius-md: 16px;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  padding: 10px;
  overflow: hidden;
  color: var(--text);
  font-family: Arial, Verdana, "Trebuchet MS", sans-serif;
  background:
    radial-gradient(circle at 8% 12%, rgba(255, 209, 102, 0.22), transparent 24%),
    radial-gradient(circle at 91% 11%, rgba(146, 119, 255, 0.2), transparent 24%),
    radial-gradient(circle at bottom right, rgba(255, 127, 156, 0.18), transparent 31%),
    linear-gradient(135deg, #d8f3f1 0%, #e7f7ff 34%, #eadfff 62%, #ffe3f1 100%);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: -18%;
  z-index: 0;
  pointer-events: none;
  mix-blend-mode: screen;
}

body::before {
  opacity: 0.9;
  filter: blur(26px);
  animation: rippleDriftOne 9s ease-in-out infinite alternate;
  background:
    radial-gradient(circle at 16% 24%, rgba(88, 224, 215, 0.44) 0%, rgba(88, 224, 215, 0.18) 12%, transparent 28%),
    radial-gradient(circle at 76% 26%, rgba(84, 196, 255, 0.38) 0%, rgba(84, 196, 255, 0.14) 14%, transparent 30%),
    radial-gradient(circle at 48% 76%, rgba(183, 143, 255, 0.34) 0%, rgba(183, 143, 255, 0.12) 14%, transparent 30%),
    radial-gradient(circle at 82% 72%, rgba(255, 148, 207, 0.28) 0%, rgba(255, 148, 207, 0.1) 12%, transparent 26%);
}

body::after {
  opacity: 0.8;
  filter: blur(42px);
  animation: rippleDriftTwo 11s ease-in-out infinite alternate;
  background:
    radial-gradient(circle at 24% 72%, rgba(92, 231, 215, 0.28) 0%, rgba(92, 231, 215, 0.1) 12%, transparent 26%),
    radial-gradient(circle at 68% 16%, rgba(170, 139, 255, 0.26) 0%, rgba(170, 139, 255, 0.1) 12%, transparent 26%),
    radial-gradient(circle at 58% 58%, rgba(255, 171, 220, 0.24) 0%, rgba(255, 171, 220, 0.08) 12%, transparent 24%),
    radial-gradient(circle at 90% 44%, rgba(82, 180, 255, 0.24) 0%, rgba(82, 180, 255, 0.08) 12%, transparent 24%);
}

button,
input,
textarea {
  font: inherit;
}

button {
  border: 0;
}

.app-shell {
  position: relative;
  z-index: 1;
  width: min(1560px, 100%);
  min-height: calc(100vh - 20px);
  margin: 0 auto;
  padding: 4px;
  overflow: hidden;
  border-radius: 30px;
  background: linear-gradient(120deg, #36c7d8, #56e0d0, #4ca9ff, #8f8dff, #ff9bd1, #ffd166, #54d6e6, #36c7d8);
  background-size: 400% 400%;
  box-shadow: 0 24px 60px rgba(14, 84, 110, 0.22);
  animation: shimmerFlow 7s linear infinite;
}

.app-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  transform: translateX(-120%);
  animation: shimmerSweep 4.2s ease-in-out infinite;
  background: linear-gradient(110deg, transparent 18%, rgba(255, 255, 255, 0.4) 34%, transparent 50%);
}

.app-frame {
  position: relative;
  min-height: calc(100vh - 28px);
  padding: 16px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) clamp(44px, 4vw, 58px);
  grid-template-rows: auto minmax(270px, 1fr) auto auto;
  gap: 14px;
  border-radius: 26px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(255, 255, 255, 0.84)),
    radial-gradient(circle at 18% 18%, rgba(86, 224, 208, 0.16), transparent 30%),
    radial-gradient(circle at 78% 28%, rgba(255, 127, 156, 0.12), transparent 26%);
  backdrop-filter: blur(6px);
}

.date-time-bar,
.panel,
.timer-panel,
.status-box,
.shortcut-item {
  border: 1px solid var(--border);
}

.date-time-bar {
  grid-column: 1;
  padding: 16px 22px;
  border-radius: 20px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.94), rgba(232, 251, 251, 0.86)),
    radial-gradient(circle at 12% 50%, rgba(255, 209, 102, 0.2), transparent 30%);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
}

.main-layout {
  grid-column: 1;
  display: grid;
  min-height: 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.panel,
.timer-panel {
  min-height: 0;
  padding: 20px;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.82), rgba(242, 251, 252, 0.72)),
    radial-gradient(circle at 0% 0%, rgba(86, 224, 208, 0.12), transparent 36%),
    radial-gradient(circle at 100% 0%, rgba(146, 119, 255, 0.1), transparent 32%);
  box-shadow: var(--shadow);
}

.field {
  height: 100%;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 10px;
}

.field-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

label {
  display: block;
  margin: 0;
  font-size: 1.45rem;
  font-weight: 800;
}

textarea,
input[type="number"] {
  width: 100%;
  border: 2px solid rgba(0, 0, 0, 0.16);
  border-radius: var(--radius-md);
  outline: none;
  background: var(--field);
  color: var(--text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

textarea {
  height: 100%;
  min-height: 100%;
  padding: 16px 18px;
  resize: none;
  overflow: hidden;
}

textarea:focus,
input[type="number"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(42, 167, 215, 0.16);
}

#learningQuestion {
  font-size: 2.45rem;
  font-weight: 700;
  line-height: 1.24;
}

#activityInstructions {
  font-size: 2.15rem;
  line-height: 1.42;
}

#learningQuestion::placeholder,
#activityInstructions::placeholder {
  font-size: 1.5rem;
}

.button,
.dictate-button {
  min-height: 44px;
  border-radius: 14px;
  color: #0c1b21;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  background: linear-gradient(135deg, #54d6e6, var(--accent));
  box-shadow: 0 10px 24px rgba(41, 137, 175, 0.25);
  transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}

.button {
  width: 100%;
  min-height: 56px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
}

.dictate-button {
  min-width: 112px;
  padding: 10px 14px;
  flex-shrink: 0;
}

.button:hover,
.dictate-button:hover {
  transform: translateY(-2px);
  filter: brightness(1.03);
  box-shadow: 0 14px 28px rgba(41, 137, 175, 0.34);
}

.button:active,
.dictate-button:active {
  transform: translateY(0);
}

.button:disabled,
.dictate-button:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}

.button--secondary {
  background: linear-gradient(135deg, #dff4f3, #9edbe8);
}

.button--danger {
  color: #ffffff;
  background: linear-gradient(135deg, #e15a5a, #b4202f, #7f1321);
}

.timer-bar {
  position: relative;
  grid-column: 2;
  grid-row: 1 / 5;
  min-height: 100%;
  overflow: hidden;
  border: 2px solid rgba(0, 0, 0, 0.14);
  border-radius: 22px;
  background: rgba(248, 247, 241, 0.9);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25);
}

.timer-bar__fill {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 100%;
  background: linear-gradient(180deg, #79e5d9 0%, #58d2df 35%, #39b8df 65%, #2b98d4 100%);
  transition: height 0.35s linear;
}

.timer-bar__fill.is-warning {
  background: linear-gradient(180deg, #ffe38a 0%, #ffc85a 50%, #ff9f43 100%);
}

.timer-bar__fill.is-danger {
  background: linear-gradient(180deg, #ffb3a8 0%, #ff7d73 55%, #f04f4f 100%);
}

.timer-bar__glass {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.24) 0%, rgba(255, 255, 255, 0.08) 25%, rgba(255, 255, 255, 0.02) 55%, rgba(0, 0, 0, 0.04) 100%);
}

.timer-panel {
  grid-column: 1;
  display: grid;
  grid-template-columns: 1.2fr 1.4fr 1fr;
  gap: 16px;
  align-items: center;
}

.timer-display-wrap {
  padding: 18px 22px;
  border: 2px solid rgba(0, 0, 0, 0.14);
  border-radius: 22px;
  background:
    linear-gradient(145deg, rgba(248, 247, 241, 1), rgba(232, 251, 250, 0.9)),
    radial-gradient(circle at 80% 18%, rgba(255, 209, 102, 0.22), transparent 34%);
  text-align: center;
  transition: box-shadow 0.2s ease;
}

.timer-display-wrap.is-warning {
  animation: lastThirtyFlash 0.85s ease-in-out infinite;
}

.timer-display-wrap.is-flashing {
  animation: pulseAlert 0.9s ease-in-out 3;
}

.timer-label {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.98rem;
}

.timer-display {
  display: block;
  font-size: clamp(3.2rem, 7vw, 5.9rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.04em;
}

.timer-controls {
  display: grid;
  align-content: center;
  gap: 12px;
}

.minutes-field {
  display: grid;
  gap: 8px;
}

input[type="number"] {
  min-height: 52px;
  padding: 10px 14px;
  font-size: 1.15rem;
  font-weight: 700;
}

.preset-row {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.control-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.status-box {
  min-height: 58px;
  margin: 0;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-style: dashed;
  border-radius: 18px;
  background: rgba(248, 247, 241, 0.95);
  color: var(--muted);
  text-align: center;
  font-size: 0.78rem;
  line-height: 1.2;
}

.shortcut-panel {
  grid-column: 1;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: stretch;
  padding: 0;
}

.shortcut-title {
  margin: 0;
  min-height: 58px;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(12, 27, 33, 0.18);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(12, 27, 33, 0.95), rgba(21, 116, 157, 0.9), rgba(146, 119, 255, 0.82));
  color: #ffffff;
  box-shadow: 0 12px 22px rgba(30, 86, 126, 0.2);
  text-align: center;
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.shortcut-bar {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.shortcut-item {
  min-height: 58px;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-style: dashed;
  border-radius: var(--radius-md);
  border-color: rgba(255, 255, 255, 0.52);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.78), rgba(202, 239, 246, 0.9)),
    radial-gradient(circle at 16% 16%, rgba(255, 209, 102, 0.26), transparent 38%),
    radial-gradient(circle at 92% 90%, rgba(255, 127, 156, 0.2), transparent 42%);
  box-shadow: 0 10px 22px rgba(42, 139, 178, 0.18);
  text-align: center;
  font-size: 0.92rem;
  font-weight: 700;
}

kbd {
  min-width: 34px;
  padding: 4px 8px;
  flex-shrink: 0;
  border: 1px solid rgba(0, 0, 0, 0.15);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.08);
  font-weight: 700;
}

@media (max-height: 780px) and (min-width: 1001px) {
  body {
    padding: 8px;
  }

  .app-shell {
    min-height: calc(100vh - 16px);
  }

  .app-frame {
    min-height: calc(100vh - 24px);
    grid-template-rows: auto minmax(230px, 1fr) auto auto;
    gap: 10px;
    padding: 12px;
  }

  .panel,
  .timer-panel {
    padding: 16px;
  }

  .date-time-bar {
    padding: 12px 18px;
    font-size: 1.3rem;
  }

  .shortcut-title,
  .shortcut-item {
    min-height: 48px;
    padding: 8px 10px;
  }
}

@media (max-width: 1250px) {
  .shortcut-panel {
    grid-template-columns: 1fr;
  }

  .shortcut-bar {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 1050px) {
  body {
    overflow: auto;
  }

  .app-frame {
    min-height: calc(100vh - 28px);
    grid-template-columns: 1fr;
    grid-template-rows: auto auto minmax(128px, 0.2fr) auto auto;
  }

  .main-layout {
    grid-template-columns: 1fr;
  }

  .timer-bar {
    grid-column: 1;
    grid-row: 3;
  }

  .timer-panel {
    grid-row: 4;
    grid-template-columns: 1fr;
  }

  .shortcut-panel {
    grid-row: 5;
  }
}

@media (max-width: 800px) {
  body {
    padding: 8px;
  }

  .app-shell,
  .app-frame {
    border-radius: 18px;
  }

  .app-frame {
    padding: 12px;
  }

  .date-time-bar {
    padding: 14px;
    font-size: 1.1rem;
  }

  label {
    font-size: 1.1rem;
  }

  .field-top {
    align-items: stretch;
    flex-direction: column;
  }

  .preset-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .control-row,
  .shortcut-bar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .shortcut-title {
    min-height: 48px;
  }

  #learningQuestion {
    font-size: 1.9rem;
  }

  #activityInstructions {
    font-size: 1.7rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

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

@keyframes shimmerSweep {
  0% { transform: translateX(-120%); }
  55% { transform: translateX(120%); }
  100% { transform: translateX(120%); }
}

@keyframes rippleDriftOne {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  25% { transform: translate3d(3%, -2%, 0) scale(1.06); }
  50% { transform: translate3d(-2%, 3%, 0) scale(1.1); }
  75% { transform: translate3d(2%, 2%, 0) scale(1.05); }
  100% { transform: translate3d(-3%, -2%, 0) scale(1.08); }
}

@keyframes rippleDriftTwo {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  25% { transform: translate3d(-3%, 2%, 0) scale(1.08); }
  50% { transform: translate3d(2%, -3%, 0) scale(1.12); }
  75% { transform: translate3d(-2%, -1%, 0) scale(1.06); }
  100% { transform: translate3d(3%, 2%, 0) scale(1.1); }
}

@keyframes pulseAlert {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.02); }
}

@keyframes lastThirtyFlash {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(255, 128, 128, 0);
    background: rgba(248, 247, 241, 1);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(255, 128, 128, 0.16);
    background: rgba(255, 239, 239, 1);
  }
}