:root {
  --bg: #0f172a;
  --bg-soft: #111827;
  --panel: #1f2937;
  --panel-strong: #111827;
  --line: rgba(148, 163, 184, 0.2);
  --text: #e5e7eb;
  --muted: #94a3b8;
  --primary: #38bdf8;
  --primary-strong: #0ea5e9;
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --shadow: 0 18px 36px rgba(15, 23, 42, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: linear-gradient(180deg, #020817 0%, #0f172a 100%);
  color: var(--text);
  font-family: "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
}

body {
  padding: 24px;
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  max-width: 1100px;
  margin: 0 auto;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: end;
  margin-bottom: 20px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--primary);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 3vw, 3rem);
}

.today {
  margin: 0;
  color: var(--muted);
}

.layout {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 20px;
}

.panel {
  background: rgba(17, 24, 39, 0.9);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 20px;
}

.stats-panel {
  grid-column: 1 / span 12;
}

.form-panel,
.templates-panel,
.history-panel {
  grid-column: span 12;
}

@media (min-width: 900px) {
  .form-panel {
    grid-column: 1 / span 7;
  }

  .templates-panel {
    grid-column: 8 / span 5;
  }

  .history-panel {
    grid-column: 1 / span 12;
  }
}

h2 {
  margin: 0 0 18px;
  font-size: 1.25rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
}

.stat-card {
  background: rgba(31, 41, 55, 0.8);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}

.stat-card .label {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  margin-bottom: 8px;
}

.stat-card .value {
  font-size: clamp(1.5rem, 2vw, 2rem);
  font-weight: 700;
}

form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.field-row {
  display: grid;
  gap: 14px;
}

.two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

input,
select {
  width: 100%;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  padding: 12px 14px;
}

button.primary {
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #062033;
  font-weight: 700;
  padding: 12px 16px;
  cursor: pointer;
  transition: transform 0.2s ease;
}

button.primary:hover {
  transform: translateY(-1px);
}

.template-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.template-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  background: rgba(15, 23, 42, 0.6);
}

.template-item h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.template-item ul {
  margin: 0 0 12px;
  padding-left: 18px;
  color: var(--muted);
}

.template-item button {
  border: none;
  border-radius: 10px;
  background: rgba(56, 189, 248, 0.1);
  color: var(--primary);
  padding: 8px 10px;
  cursor: pointer;
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.history-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.65);
  padding: 14px;
}

.history-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.history-date {
  font-weight: 700;
}

.delete-btn {
  border: 1px solid rgba(248, 113, 113, 0.3);
  background: rgba(248, 113, 113, 0.08);
  color: var(--danger);
  border-radius: 999px;
  padding: 6px 10px;
  cursor: pointer;
}

.history-items {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.log-entry {
  display: grid;
  grid-template-columns: 1.6fr 0.7fr 0.7fr 0.7fr auto;
  gap: 10px;
  align-items: center;
  padding: 8px 10px;
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 10px;
  background: rgba(30, 41, 59, 0.8);
}

.log-entry .name {
  font-weight: 600;
}

.log-entry .meta {
  color: var(--muted);
  font-size: 0.85rem;
}

.empty-state {
  color: var(--muted);
  padding: 12px 4px;
}

@media (max-width: 680px) {
  body {
    padding: 16px;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .two-col,
  .three-col,
  .log-entry {
    grid-template-columns: 1fr;
  }
}