/* ErgIntz web — minimal stylesheet, system fonts, dark-mode friendly. */

:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #15171a;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --work: #f59e0b;
  --rest: #3b82f6;
  --error: #dc2626;
  --success: #16a34a;
  --border: #e5e7eb;
  --shadow: 0 1px 2px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.04);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0d10;
    --card: #16191f;
    --text: #e9eaec;
    --muted: #9aa2ad;
    --accent: #60a5fa;
    --accent-soft: #1e3a5f;
    --border: #232830;
    --shadow: 0 1px 3px rgba(0,0,0,0.4);
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 0.92em; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 24px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; font-size: 18px; color: var(--text); }
nav { display: flex; gap: 18px; align-items: center; }
nav a { color: var(--muted); font-weight: 500; }
nav a.muted { font-weight: 400; }

.container { max-width: 900px; margin: 0 auto; padding: 28px 20px 60px; }
h1 { font-size: 26px; margin: 0 0 16px; }
h2 { font-size: 18px; margin: 24px 0 12px; }
.muted { color: var(--muted); }
.error { color: var(--error); }

.page-header { margin-bottom: 20px; }
.page-header h1 { margin-bottom: 2px; }

.back { font-size: 14px; color: var(--muted); }

/* Hero / login --------------------------------------------------- */
.hero { max-width: 520px; margin: 60px auto; text-align: center; }
.hero h1 { font-size: 48px; margin-bottom: 8px; }
.hero .lede { color: var(--muted); margin-bottom: 32px; }
.hero .btn.primary { font-size: 16px; padding: 14px 28px; }
.explainer { margin-top: 32px; text-align: left; }
.explainer summary { cursor: pointer; color: var(--muted); font-weight: 500; }
.explainer ul { padding-left: 22px; color: var(--muted); }

.notice {
  margin: 20px 0; padding: 14px 16px; border-radius: 10px; text-align: left;
  font-size: 14px;
}
.notice.warning { background: #fef3c7; color: #92400e; }
.notice.error   { background: #fee2e2; color: #991b1b; }
@media (prefers-color-scheme: dark) {
  .notice.warning { background: #3a2a06; color: #fbbf24; }
  .notice.error   { background: #3a0e0e; color: #f87171; }
}

/* Buttons -------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 16px;
  border: 1px solid var(--border);
  background: var(--card); color: var(--text);
  border-radius: 8px; font-weight: 500; cursor: pointer;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn.primary { background: var(--accent); color: white; border-color: var(--accent); }
.btn.primary:hover { filter: brightness(1.05); }
.btn.danger { color: var(--error); border-color: transparent; background: transparent; }
.btn.danger:hover { background: #fee2e2; }
.btn.small { padding: 4px 10px; font-size: 12px; }

/* Cards ---------------------------------------------------------- */
.cards { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.card {
  background: var(--card); border-radius: 12px; box-shadow: var(--shadow);
  overflow: hidden; transition: transform .12s ease;
}
.card:hover { transform: translateY(-1px); }
.card-link { display: block; padding: 16px 18px; color: inherit; }
.card-link:hover { text-decoration: none; }
.card-header {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 6px;
}
.card-title { font-weight: 600; font-size: 16px; }
.card-meta { color: var(--muted); font-size: 13px; }
.card-stats { display: flex; gap: 18px; color: var(--muted); font-size: 14px; }
.card-stats strong { color: var(--text); font-variant-numeric: tabular-nums; }

.badge {
  display: inline-block; margin-top: 8px; padding: 2px 8px;
  border-radius: 999px; font-size: 12px;
}
.badge.synced { background: #dcfce7; color: #166534; }
.badge.error  { background: #fee2e2; color: #991b1b; }
@media (prefers-color-scheme: dark) {
  .badge.synced { background: #14351f; color: #86efac; }
  .badge.error  { background: #3a0e0e; color: #fca5a5; }
}

/* Summary grid (session detail) ---------------------------------- */
.summary-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px;
  margin-bottom: 24px;
}
@media (min-width: 600px) { .summary-grid { grid-template-columns: repeat(4, 1fr); } }
.stat {
  background: var(--card); padding: 16px; border-radius: 12px;
  text-align: center; box-shadow: var(--shadow);
}
.stat-value { font-size: 24px; font-weight: 600; font-variant-numeric: tabular-nums; }
.stat-label { color: var(--muted); font-size: 12px; text-transform: uppercase;
              letter-spacing: 0.06em; margin-top: 4px; }

/* Logbook card / forms ------------------------------------------ */
.logbook-card {
  background: var(--card); padding: 18px; border-radius: 12px;
  margin-bottom: 18px; box-shadow: var(--shadow);
}
.danger-zone { margin-top: 32px; }

/* Interval ladder (template list) ------------------------------- */
.ladder { display: flex; gap: 2px; margin: 10px 0 8px; }
.ladder .pill { flex: 1; height: 14px; border-radius: 3px; }
.ladder .pill.work { background: var(--work); }
.ladder .pill.rest { background: var(--rest); opacity: 0.6; }

/* Template detail interval list --------------------------------- */
.interval-list { list-style: none; padding: 0; }
.interval {
  display: flex; gap: 12px; padding: 10px 14px; border-radius: 8px;
  margin-bottom: 4px; background: var(--card);
}
.interval.work { border-left: 3px solid var(--work); }
.interval.rest { border-left: 3px solid var(--rest); }
.interval .kind { font-weight: 600; min-width: 56px; }
.interval .duration { color: var(--muted); }
.repeat-marker { color: var(--accent); font-size: 13px; margin: 8px 0 4px; }

/* Profile card --------------------------------------------------- */
.profile-card {
  background: var(--card); padding: 16px 18px; border-radius: 12px;
  margin: 12px 0 20px; box-shadow: var(--shadow);
}
.profile-card .inline-form {
  display: flex; align-items: end; gap: 12px; flex-wrap: wrap;
}
.profile-card label { display: flex; flex-direction: column; gap: 4px; }
.profile-card .label {
  font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--muted);
}
.profile-card input[type="text"] {
  padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg); color: var(--text); width: 120px;
  font-variant-numeric: tabular-nums;
}

/* Settings ------------------------------------------------------- */
.tokens-table { width: 100%; border-collapse: collapse; margin-top: 12px; }
.tokens-table th, .tokens-table td {
  padding: 8px 10px; border-bottom: 1px solid var(--border);
  text-align: left; font-size: 14px;
}
.tokens-table th { color: var(--muted); font-weight: 500; }
.inline-form { display: flex; gap: 8px; margin: 12px 0; }
.inline-form input {
  flex: 1; padding: 8px 12px; border: 1px solid var(--border);
  border-radius: 8px; background: var(--card); color: var(--text);
}
.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; }
.kv dt { color: var(--muted); }

.empty-state { padding: 60px 0; text-align: center; color: var(--muted); }

/* Laps table ----------------------------------------------------- */
.laps-card { background: var(--card); border-radius: 12px; padding: 16px 18px;
              margin: 20px 0; box-shadow: var(--shadow); }
.laps-card h2 { margin: 0 0 10px; font-size: 16px; }
.laps-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.laps-table th, .laps-table td {
  padding: 8px 10px; text-align: left;
  border-bottom: 1px solid var(--border);
}
.laps-table th { color: var(--muted); font-weight: 500; }
.laps-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.laps-table tr.lap-rest td { background: rgba(37, 99, 235, 0.03); }
@media (prefers-color-scheme: dark) {
  .laps-table tr.lap-rest td { background: rgba(96, 165, 250, 0.06); }
}
.lap-kind-pill {
  display: inline-block; padding: 2px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 600;
}
.lap-kind-pill.work {
  background: rgba(245, 158, 11, 0.18); color: #b45309;
}
.lap-kind-pill.rest {
  background: rgba(37, 99, 235, 0.16); color: #1d4ed8;
}
@media (prefers-color-scheme: dark) {
  .lap-kind-pill.work { color: #fbbf24; }
  .lap-kind-pill.rest { color: #93c5fd; }
}

.session-actions {
  display: flex; align-items: center; gap: 12px;
  margin: 24px 0 12px; padding: 14px 16px;
  background: var(--card); border-radius: 12px; box-shadow: var(--shadow);
}
.session-actions .small { font-size: 13px; }

/* Logbook table --------------------------------------------------- */
.logbook-table { width: 100%; border-collapse: collapse; background: var(--card);
                  border-radius: 12px; overflow: hidden; box-shadow: var(--shadow); }
.logbook-table th, .logbook-table td {
  padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.logbook-table th { color: var(--muted); font-weight: 500; background: transparent; }
.logbook-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.logbook-table .kind { color: var(--muted); font-size: 13px; text-transform: capitalize; }
.logbook-table .small { font-size: 12px; margin-left: 4px; }
.pager { display: flex; justify-content: space-between; align-items: center;
         margin-top: 16px; gap: 12px; }

/* Template editor ------------------------------------------------- */
.editor .title-input {
  font-size: 24px; font-weight: 700; border: none; background: transparent;
  width: 100%; padding: 4px 0; color: var(--text);
}
.editor .title-input:focus { outline: none; border-bottom: 2px solid var(--accent); }
.editor-row { margin: 16px 0; }
.editor-row label { display: flex; flex-direction: column; gap: 4px; max-width: 200px; }
.editor-row .label { font-size: 12px; color: var(--muted);
                      text-transform: uppercase; letter-spacing: 0.06em; }
.editor-row select {
  padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--card); color: var(--text);
}

.editor-block {
  background: var(--card); border-radius: 12px; padding: 12px 14px;
  margin-bottom: 12px; box-shadow: var(--shadow);
}
.block-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.spacer { flex: 1; }
.repeat-badge {
  background: var(--accent-soft); color: var(--accent);
  padding: 3px 10px; border-radius: 999px; font-weight: 600;
  display: flex; align-items: center; gap: 4px; font-size: 13px;
}
.repeat-badge input.reps {
  width: 40px; border: none; background: transparent; color: var(--accent);
  font-weight: 600; font-size: 13px;
}
.entries { display: flex; flex-direction: column; gap: 6px; }
.entry-row {
  display: flex; flex-direction: column; gap: 6px;
  padding: 8px 10px; border-radius: 8px; background: var(--bg);
}
.entry-top, .entry-target {
  display: flex; align-items: center; gap: 8px;
}
.entry-target { padding-left: 56px; font-size: 13px; }
.entry-target .target-label {
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em;
  min-width: 56px;
}
.entry-target .tgt-kind {
  padding: 3px 6px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--card); color: var(--text); font-size: 12px;
}
.entry-target .tgt-value {
  width: 70px; padding: 4px 6px; border: 1px solid var(--border);
  border-radius: 6px; background: var(--card); color: var(--text);
  font-variant-numeric: tabular-nums; font-size: 13px;
}
.entry-target .tgt-derived {
  font-style: italic; font-size: 12px; color: var(--muted);
}
.entry-row.work { border-left: 3px solid var(--work); }
.entry-row.rest { border-left: 3px solid var(--rest); }
.entry-row .kind { font-weight: 600; min-width: 50px; }
.entry-row .dur-kind {
  padding: 4px 6px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--card); color: var(--text); font-size: 13px;
}
.entry-row .dur-value {
  width: 80px; padding: 5px 8px; border: 1px solid var(--border);
  border-radius: 6px; background: var(--card); color: var(--text);
  font-variant-numeric: tabular-nums;
}
.entry-add { margin-top: 8px; display: flex; gap: 6px; }
.actions { margin: 16px 0; display: flex; gap: 8px; }
.form-footer { margin-top: 24px; display: flex; gap: 8px; align-items: center; }
.btn.big { padding: 12px 24px; font-size: 16px; }

.notice.success { background: #dcfce7; color: #166534; }
@media (prefers-color-scheme: dark) {
  .notice.success { background: #14351f; color: #86efac; }
}

/* Logbook table --------------------------------------------------- */
.charts { display: grid; gap: 12px; margin: 20px 0; }
.chart-card {
  background: var(--card); padding: 14px 16px; border-radius: 12px;
  box-shadow: var(--shadow);
}
.chart-card header {
  display: flex; align-items: baseline; gap: 8px; margin-bottom: 6px;
}
.chart-card h3 { font-size: 14px; margin: 0; }
.chart { display: block; width: 100%; height: auto; }