:root {
  --bg1: #eef6ff;
  --bg2: #f7fbff;
  --card: #ffffffd9;
  --text: #0f172a;
  --muted: #475569;
  --line: #dbe7f5;
  --accent1: #0ea5a4;
  --accent2: #f59e0b;
  --badge-text: #0b4f6c;
  --badge-bg: #e0f2fe;
  --badge-line: #bae6fd;
  --shadow: rgba(15, 23, 42, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(900px 500px at 10% -20%, #d9ebff 0%, transparent 55%),
    radial-gradient(900px 450px at 100% 100%, #ffe7c7 0%, transparent 50%),
    linear-gradient(160deg, var(--bg1), var(--bg2));
  display: grid;
  place-items: center;
  padding: 24px;
  transition: color 250ms ease, background 350ms ease;
}

body[data-theme="dark"] {
  --bg1: #0a1328;
  --bg2: #0e1b36;
  --card: #0b1222cc;
  --text: #e2e8f0;
  --muted: #b8c3d6;
  --line: #2a3b5e;
  --accent1: #22d3ee;
  --accent2: #f59e0b;
  --badge-text: #d8f7ff;
  --badge-bg: #164e63;
  --badge-line: #155e75;
  --shadow: rgba(2, 8, 20, 0.46);
}

.card {
  position: relative;
  width: min(760px, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 34px 28px;
  box-shadow: 0 18px 42px var(--shadow);
  backdrop-filter: blur(6px);
  animation: enter 0.55s ease-out both;
  transition: transform 250ms ease, box-shadow 250ms ease, background 250ms ease, border-color 250ms ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 46px var(--shadow);
}

.theme-toggle {
  position: absolute;
  top: 16px;
  right: 16px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  border-radius: 999px;
  padding: 7px 12px;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: color 220ms ease, background-color 220ms ease, border-color 220ms ease, transform 220ms ease;
}

.theme-toggle:hover {
  color: var(--text);
  background: color-mix(in srgb, var(--card) 55%, var(--accent1) 45%);
  border-color: var(--accent1);
  transform: translateY(-1px);
}

.badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--badge-text);
  background: var(--badge-bg);
  border: 1px solid var(--badge-line);
  border-radius: 999px;
  padding: 7px 12px;
  margin-bottom: 14px;
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  line-height: 1.1;
}

p {
  margin: 0;
  color: var(--muted);
  font-size: 1.04rem;
}

#clock {
  margin-top: 14px;
  font-weight: 700;
  color: color-mix(in srgb, var(--accent1) 70%, var(--text) 30%);
}

.bar {
  margin-top: 24px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent1), var(--accent2));
  animation: load 1.05s ease-out;
  transform-origin: left center;
}

.footer {
  margin-top: 16px;
  font-size: 0.92rem;
  color: var(--muted);
}

@keyframes enter {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

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

@keyframes load {
  from {
    transform: scaleX(0.2);
    opacity: 0.5;
  }

  to {
    transform: scaleX(1);
    opacity: 1;
  }
}

@media (max-width: 640px) {
  .card {
    padding-top: 58px;
  }
}