:root {
  --bg: #f3f8f7;
  --panel: #ffffff;
  --panel-strong: #f7fbfa;
  --text: #182522;
  --muted: #6d7c78;
  --line: #d8e6e1;
  --blue: #0f766e;
  --blue-soft: #e2f4f1;
  --accent: #2563eb;
  --accent-soft: #e8f0ff;
  --danger: #b42318;
  --danger-soft: #fff3f0;
  --success: #047857;
  --success-soft: #e8f8f1;
  --shadow: 0 14px 30px rgba(15, 45, 38, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover {
  color: #0b5f58;
}

button,
input,
select {
  font: inherit;
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.12), transparent 44%),
    linear-gradient(315deg, rgba(37, 99, 235, 0.07), transparent 38%),
    var(--bg);
}

.period-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-shell {
  width: min(440px, calc(100vw - 32px));
}

.period-panel {
  width: min(560px, calc(100vw - 32px));
  padding: 28px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.login-card,
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.login-card {
  padding: 32px;
}

.brand-block,
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo {
  width: 72px;
  height: 44px;
  object-fit: contain;
  background: #fff;
}

.login-card {
  border-top: 4px solid var(--blue);
}

.login-card h1,
.topbar h1,
.panel h2,
.edit-box h3 {
  margin: 0;
  letter-spacing: 0;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.muted,
.hint {
  color: var(--muted);
}

.hint {
  font-size: 12px;
  margin-bottom: 0;
}

.form-stack {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.form-stack label,
.period-form label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.period-form {
  display: grid;
  grid-template-columns: 1fr 140px;
  gap: 16px;
  margin-top: 22px;
}

.period-form button {
  grid-column: 1 / -1;
}

input,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  padding: 10px 12px;
  color: var(--text);
}

input:focus,
select:focus {
  border-color: var(--blue);
  outline: 3px solid rgba(15, 118, 110, 0.14);
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 260px 1fr;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 24px 20px;
  background: #fbfefd;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.brand strong,
.brand span {
  display: block;
}

.brand span {
  color: var(--muted);
  font-size: 12px;
  margin-top: 3px;
}

.nav-list {
  display: grid;
  gap: 6px;
}

.nav-list a {
  padding: 10px 12px;
  color: #334e49;
  border-radius: 6px;
  font-weight: 700;
}

.nav-list a:hover {
  background: var(--blue-soft);
  color: var(--blue);
}

.user-panel {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.role-pill,
.status-chip,
.file-state {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 800;
}

.role-pill,
.status-chip.free,
.file-state.ok {
  color: var(--success);
  background: var(--success-soft);
}

.status-chip.locked,
.file-state.danger {
  color: #8a5a00;
  background: #fff7dc;
}

.content {
  padding: 30px;
  display: grid;
  gap: 22px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 4px;
}

.grid.two {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(360px, 0.8fr);
  gap: 22px;
}

.panel {
  padding: 22px;
  border-top: 3px solid transparent;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 18px;
}

.meta-grid div {
  padding: 14px;
  background: var(--panel-strong);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.meta-grid dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.meta-grid dd {
  margin: 6px 0 0;
  font-weight: 700;
}

.button-row,
.generation-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.generation-actions {
  align-items: stretch;
}

.button {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 14px;
  background: #fff;
  color: var(--text);
  font-weight: 800;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.button.primary,
.button.accent {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

.button.primary:hover:not(:disabled) {
  background: #0b5f58;
  border-color: #0b5f58;
}

.button.accent {
  background: var(--accent);
  border-color: var(--accent);
}

.button.accent:hover:not(:disabled) {
  background: #1d4ed8;
  border-color: #1d4ed8;
}

.button.secondary {
  background: var(--blue-soft);
  border-color: #b7ddd6;
  color: var(--blue);
}

.button.ghost {
  background: #fff;
}

.button.danger {
  color: #9f3a2f;
  background: #fff5f3;
  border-color: #f3c7bf;
}

.button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.edit-box {
  margin-top: 20px;
  padding: 16px;
  background: var(--panel-strong);
  border: 1px solid var(--line);
  border-radius: 8px;
  border-left: 4px solid var(--blue);
}

.upload-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  margin: 14px 0;
}

.upload-ready {
  color: var(--success);
  font-weight: 800;
}

.force-form {
  margin-top: 14px;
}

.soft-divider {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 18px 0;
}

.alert {
  border-radius: 8px;
  padding: 12px 14px;
  font-weight: 700;
}

.alert.success {
  color: var(--success);
  background: var(--success-soft);
  border: 1px solid #b8e7ce;
}

.alert.error {
  color: var(--danger);
  background: var(--danger-soft);
  border: 1px solid #ffd1ca;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: #fbfefd;
}

tbody tr:hover td {
  background: #fbfefd;
}

tbody tr:last-child td {
  border-bottom: 0;
}

.actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.actions form {
  margin: 0;
}

.small-link,
.small-danger {
  border: 0;
  background: transparent;
  padding: 0;
  color: var(--blue);
  font-weight: 800;
  cursor: pointer;
}

.small-danger {
  color: var(--danger);
}

.timeline {
  display: grid;
  gap: 10px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 170px 90px 1fr;
  gap: 12px;
  align-items: baseline;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
}

.timeline-item time {
  color: var(--muted);
  font-size: 12px;
}

.timeline-item p {
  grid-column: 3;
  margin: 0;
  color: var(--muted);
}

.timeline-item.bad {
  border-color: #ffd1ca;
  background: var(--danger-soft);
}

.empty {
  color: var(--muted);
  text-align: center;
  padding: 24px;
}

.progress-note {
  margin-top: 16px;
  padding: 12px;
  border-radius: 8px;
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 800;
}

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  .grid.two,
  .meta-grid {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }

  .timeline-item p {
    grid-column: 1;
  }

  .upload-form {
    grid-template-columns: 1fr;
  }

  .period-form {
    grid-template-columns: 1fr;
  }
}