:root {
  color-scheme: dark;
  --ink: #f4efe5;
  --muted: #a69e91;
  --dim: #6f695f;
  --panel: rgba(26, 29, 31, 0.76);
  --panel-strong: rgba(35, 39, 41, 0.94);
  --edge: rgba(244, 239, 229, 0.13);
  --accent: #d6b36a;
  --accent-deep: #8f6d30;
  --cyan: #81b7ac;
  --danger: #d58571;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.46);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 12% 12%, rgba(129, 183, 172, 0.22), transparent 30rem),
    radial-gradient(circle at 82% 24%, rgba(214, 179, 106, 0.18), transparent 28rem),
    linear-gradient(135deg, #121618 0%, #191b1c 46%, #0f1111 100%);
  color: var(--ink);
  font-family: "Sora", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(244, 239, 229, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 239, 229, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 82%);
}

button {
  border: 0;
  color: inherit;
  font: inherit;
}

.shell {
  width: min(1120px, calc(100vw - 32px));
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 260px minmax(320px, 430px) 1fr;
  grid-template-rows: minmax(132px, auto) 1fr;
  gap: 24px;
  align-items: start;
  padding: 36px 0;
}

.weather-panel,
.clock-panel,
.calculator {
  border: 1px solid var(--edge);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px);
}

.weather-panel {
  grid-column: 1;
  min-height: 116px;
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 16px;
  align-items: center;
  padding: 18px;
  border-radius: 8px;
}

.weather-mark {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(129, 183, 172, 0.12);
  border: 1px solid rgba(129, 183, 172, 0.26);
  color: var(--cyan);
  font-weight: 700;
}

.label {
  margin: 0 0 7px;
  color: var(--muted);
  font-size: 0.69rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.weather-value,
.weather-place,
.date {
  margin: 0;
}

.weather-value {
  font-size: 1.42rem;
  font-weight: 700;
}

.weather-place,
.date {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.45;
}

.clock-panel {
  grid-column: 2 / 4;
  min-height: 116px;
  display: grid;
  align-content: center;
  padding: 22px 28px;
  border-radius: 8px;
}

.clock {
  font-family: "Instrument Serif", serif;
  font-size: clamp(3.7rem, 9vw, 7.8rem);
  line-height: 0.86;
  letter-spacing: 0;
  color: var(--ink);
}

.calculator {
  grid-column: 2;
  grid-row: 2;
  width: 100%;
  padding: 18px;
  border-radius: 8px;
  background: var(--panel-strong);
}

.display {
  min-height: 164px;
  display: grid;
  align-content: end;
  gap: 10px;
  padding: 20px;
  margin-bottom: 16px;
  border-radius: 6px;
  background:
    linear-gradient(180deg, rgba(244, 239, 229, 0.065), transparent),
    rgba(12, 15, 15, 0.62);
  border: 1px solid rgba(244, 239, 229, 0.08);
  overflow: hidden;
}

.expression {
  min-height: 24px;
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  overflow-wrap: anywhere;
  text-align: right;
}

.result {
  display: block;
  width: 100%;
  color: var(--ink);
  font-family: "Instrument Serif", serif;
  font-size: clamp(3.2rem, 12vw, 5.6rem);
  line-height: 0.95;
  text-align: right;
  overflow-wrap: anywhere;
}

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

.keys button {
  aspect-ratio: 1 / 0.78;
  min-width: 0;
  border-radius: 7px;
  background: rgba(244, 239, 229, 0.08);
  border: 1px solid rgba(244, 239, 229, 0.1);
  cursor: pointer;
  font-size: 1.04rem;
  font-weight: 700;
  transition:
    transform 160ms ease,
    background 160ms ease,
    border-color 160ms ease;
}

.keys button:hover {
  transform: translateY(-2px);
  background: rgba(244, 239, 229, 0.13);
}

.keys button:active {
  transform: translateY(1px) scale(0.98);
}

.keys button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.keys .operator {
  color: var(--accent);
  background: rgba(214, 179, 106, 0.11);
  border-color: rgba(214, 179, 106, 0.22);
}

.keys .utility {
  color: var(--cyan);
  background: rgba(129, 183, 172, 0.1);
  border-color: rgba(129, 183, 172, 0.22);
}

.keys .equals {
  color: #171511;
  background: linear-gradient(180deg, #e7c77b, #b88e3d);
  border-color: rgba(244, 239, 229, 0.28);
}

@media (max-width: 860px) {
  .shell {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    gap: 14px;
    padding: 18px 0;
  }

  .weather-panel,
  .clock-panel,
  .calculator {
    grid-column: 1;
    grid-row: auto;
  }

  .clock-panel {
    padding: 20px;
  }
}

@media (max-width: 460px) {
  .shell {
    width: min(100vw - 20px, 430px);
  }

  .weather-panel {
    grid-template-columns: 48px 1fr;
    padding: 14px;
  }

  .weather-mark {
    width: 48px;
    height: 48px;
  }

  .calculator {
    padding: 12px;
  }

  .display {
    min-height: 132px;
    padding: 16px;
  }

  .keys {
    gap: 8px;
  }
}