:root {
  --bg: #0b1020;
  --surface: #121a31;
  --surface-2: #1a2442;
  --text: #edf2ff;
  --muted: #a8b2d6;
  --accent: #4cc9f0;
  --ok: #2dd4bf;
  --danger: #f87171;
  --border: #2a3764;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  background: radial-gradient(circle at top, #172347, var(--bg));
  color: var(--text);
}

.topbar {
  padding: 24px 16px;
  text-align: center;
}

.topbar h1 {
  margin: 0;
  font-size: 2rem;
}

.topbar p {
  margin: 8px 0 0;
  color: var(--muted);
}

.container {
  width: min(1100px, 95%);
  margin: 0 auto 32px;
  display: grid;
  gap: 16px;
}

.card {
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.22);
}

label {
  display: block;
  margin: 10px 0 6px;
  color: var(--muted);
}

input,
textarea,
select,
button {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0f1731;
  color: var(--text);
  padding: 10px;
  font: inherit;
}

button {
  cursor: pointer;
  background: linear-gradient(90deg, #2b6cb0, #1d4ed8);
  margin-top: 12px;
  border: none;
}

button:hover {
  opacity: 0.95;
}

.hint {
  color: var(--muted);
  font-size: 0.9rem;
}

.split {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 14px;
}

.viewer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

#open-link {
  color: var(--accent);
  border: 1px solid var(--border);
  background: #0f1731;
  border-radius: 10px;
  padding: 8px 10px;
  text-decoration: none;
}

.viewer-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.secondary {
  width: auto;
  margin: 0;
  padding: 8px 10px;
  font-size: 0.88rem;
  background: #1b2950;
  border: 1px solid var(--border);
}

#content-frame {
  width: 100%;
  height: 60vh;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #09102a;
}

.timer-wrap {
  text-align: center;
  background: #0f1731;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
}

#timer {
  display: block;
  font-size: 2rem;
  margin: 6px 0 10px;
}

.timer-actions {
  display: flex;
  gap: 8px;
}

.timer-actions button {
  margin: 0;
}

#complete-btn {
  background: linear-gradient(90deg, #0f766e, #0ea5a8);
}

.portfolio-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.portfolio-list {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.portfolio-item {
  border: 1px solid var(--border);
  background: #0d1430;
  border-radius: 12px;
  padding: 12px;
}

.item-title {
  margin: 0 0 6px;
}

.item-url {
  color: var(--accent);
  word-break: break-all;
}

.item-summary {
  color: var(--text);
  line-height: 1.5;
}

.meta {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.88rem;
}

.hidden {
  display: none;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 12px 0;
}

.mini-stat {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  background: #0d1430;
}

.mini-stat p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.mini-stat strong {
  display: block;
  margin-top: 4px;
  font-size: 1.15rem;
}

.archive-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

#iframe-status {
  margin: 8px 0 4px;
}

.warn {
  color: #fed7aa;
}

.ok {
  color: #99f6e4;
}

@media (max-width: 900px) {
  .split {
    grid-template-columns: 1fr;
  }

  #content-frame {
    height: 45vh;
  }

  .stats-grid,
  .archive-actions {
    grid-template-columns: 1fr;
  }
}