/* OffSnow app styles (DESIGN §7). Mobile-first, dark, high-contrast — the
   athletic tone of the training page, kept lightweight. Served as a static
   asset under the strict CSP: this is the ONLY stylesheet, no inline styles. */

:root {
  --bg: #0b0f14;
  --bg-elev: #131a22;
  --bg-elev-2: #1a232d;
  --line: #263140;
  --fg: #eef3f8;
  --fg-dim: #9fb0c0;
  --fg-faint: #6b7c8d;
  --green: #34d399; /* Phase 1 */
  --blue: #38bdf8; /* Phase 2 */
  --diamond: #c084fc; /* Phase 3 */
  --accent: var(--green);
  --danger: #f87171;
  --ok: #34d399;
  --warn: #fbbf24;
  --radius: 12px;
  --tap: 44px;
  --maxw: 720px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  padding-bottom: env(safe-area-inset-bottom);
}

h1, h2 {
  margin: 0;
  line-height: 1.2;
}

button {
  font: inherit;
  cursor: pointer;
}

input, textarea, select, button {
  font-family: inherit;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #04120c;
  padding: 8px 12px;
  border-radius: 0 0 8px 0;
  z-index: 20;
}
.skip:focus {
  left: 0;
}

/* ── top bar ─────────────────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  padding-top: max(12px, env(safe-area-inset-top));
  background: rgba(11, 15, 20, 0.85);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.brand-mark {
  color: var(--accent);
  font-size: 1.1rem;
}
.brand-name {
  font-size: 1.05rem;
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ghost-btn {
  background: transparent;
  color: var(--fg-dim);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 0.85rem;
}
.ghost-btn:hover {
  color: var(--fg);
  border-color: var(--fg-faint);
}

.sync-badge {
  background: color-mix(in srgb, var(--warn) 16%, transparent);
  color: var(--warn);
  border: 1px solid color-mix(in srgb, var(--warn) 40%, transparent);
  border-radius: 999px;
  padding: 5px 11px;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}

/* ── layout ──────────────────────────────────────────────────────── */
main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px;
  outline: none;
}
.view[hidden] {
  display: none;
}

.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding-top: 22vh;
  color: var(--fg-dim);
}
.spinner {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 3px solid var(--line);
  border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ── login ───────────────────────────────────────────────────────── */
.login {
  display: flex;
  justify-content: center;
  padding-top: 12vh;
}
.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
}
.login-title {
  font-size: 1.5rem;
}
.login-sub {
  color: var(--fg-dim);
  margin: 8px 0 22px;
  font-size: 0.95rem;
}
.login-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.login-form[hidden] {
  display: none;
}
.field-label {
  font-size: 0.8rem;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
input[type="email"],
input[type="text"],
.note,
.date {
  width: 100%;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 13px 14px;
  font-size: 1rem;
  min-height: var(--tap);
}
input:focus,
textarea:focus,
select:focus,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}
#code {
  letter-spacing: 0.4em;
  text-align: center;
  font-size: 1.3rem;
}

.primary-btn {
  background: var(--accent);
  color: #05130d;
  border: none;
  border-radius: 10px;
  padding: 13px 16px;
  font-size: 1rem;
  font-weight: 700;
  min-height: var(--tap);
}
.primary-btn:hover {
  filter: brightness(1.06);
}
.primary-btn:disabled {
  opacity: 0.55;
  cursor: default;
}
.text-btn {
  background: none;
  border: none;
  color: var(--fg-dim);
  text-decoration: underline;
  padding: 6px;
  font-size: 0.9rem;
}
.text-btn:hover {
  color: var(--fg);
}
.login-msg {
  margin: 16px 0 0;
  min-height: 1.2em;
  font-size: 0.9rem;
  color: var(--fg-dim);
}
.login-msg.is-error {
  color: var(--danger);
}

/* ── pending panel ───────────────────────────────────────────────── */
.pending-panel {
  background: color-mix(in srgb, var(--warn) 10%, var(--bg-elev));
  border: 1px solid color-mix(in srgb, var(--warn) 30%, var(--line));
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 16px;
}
.pending-panel[hidden] {
  display: none;
}
.pending-title {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--warn);
  margin-bottom: 8px;
}
.pending-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.pending-item {
  display: flex;
  gap: 12px;
  font-size: 0.88rem;
}
.pending-date {
  color: var(--fg);
  font-variant-numeric: tabular-nums;
}
.pending-where {
  color: var(--fg-dim);
}

/* ── phase tabs ──────────────────────────────────────────────────── */
.app[data-phase="p1"] {
  --accent: var(--green);
}
.app[data-phase="p2"] {
  --accent: var(--blue);
}
.app[data-phase="p3"] {
  --accent: var(--diamond);
}

.phase-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  margin-bottom: 14px;
  scrollbar-width: none;
}
.phase-tabs::-webkit-scrollbar {
  display: none;
}
.phase-tab {
  flex: 0 0 auto;
  background: var(--bg-elev);
  color: var(--fg-dim);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 15px;
  font-size: 0.88rem;
  font-weight: 600;
  white-space: nowrap;
}
.phase-tab.is-active {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
}

.phase-head {
  margin-bottom: 18px;
}
.phase-name {
  font-size: 1.35rem;
  color: var(--accent);
}
.phase-scheme {
  color: var(--fg);
  font-weight: 600;
  font-size: 0.9rem;
  margin: 6px 0;
}
.phase-blurb {
  color: var(--fg-dim);
  font-size: 0.92rem;
  margin: 0;
}

/* ── day card ────────────────────────────────────────────────────── */
.days {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.day-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.day-head {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  border-left: 3px solid var(--accent);
}
.day-title {
  font-size: 1.1rem;
}
.day-tag {
  margin: 4px 0 0;
  color: var(--fg-faint);
  font-size: 0.8rem;
  letter-spacing: 0.01em;
}
.day-pending {
  margin: 10px 16px 0;
  align-self: flex-start;
  display: inline-block;
  background: color-mix(in srgb, var(--warn) 16%, transparent);
  color: var(--warn);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.day-pending[hidden] {
  display: none;
}

/* ── exercise rows ───────────────────────────────────────────────── */
.ex-list {
  display: flex;
  flex-direction: column;
}
.exercise {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
}
.exercise:first-child {
  border-top: none;
}
.ex-main {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}
.ex-check {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border: 2px solid var(--fg-faint);
  border-radius: 7px;
  background: var(--bg);
  display: grid;
  place-content: center;
}
.ex-check:checked {
  background: var(--accent);
  border-color: var(--accent);
}
.ex-check:checked::after {
  content: "✓";
  color: #05130d;
  font-size: 0.9rem;
  font-weight: 800;
}
.ex-name {
  flex: 1 1 auto;
  font-weight: 600;
  font-size: 0.96rem;
}
.ex-rx {
  flex: 0 0 auto;
  color: var(--fg-dim);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

/* metric strip */
.strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
  padding-left: 36px;
}
.strip[hidden] {
  display: none;
}
.num,
.sel {
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 10px 11px;
  font-size: 0.92rem;
  min-height: 40px;
}
.num {
  width: 84px;
}
.num-wide {
  width: 150px;
}
.sel {
  min-width: 72px;
}

.taps {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.tap {
  background: var(--bg);
  color: var(--fg-dim);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 0.85rem;
  font-weight: 600;
  min-height: 38px;
  text-transform: capitalize;
}
.tap:hover {
  color: var(--fg);
}
.tap.active {
  background: color-mix(in srgb, var(--accent) 20%, transparent);
  color: var(--accent);
  border-color: var(--accent);
}
.tap.quality-painful.active,
.tap.quality-sloppy.active {
  background: color-mix(in srgb, var(--danger) 22%, transparent);
  color: var(--danger);
  border-color: var(--danger);
}
.tap.quality-limited.active {
  background: color-mix(in srgb, var(--warn) 20%, transparent);
  color: var(--warn);
  border-color: var(--warn);
}

/* coaching cues */
.ex-info {
  margin-top: 10px;
  padding-left: 36px;
}
.ex-info summary {
  color: var(--fg-faint);
  font-size: 0.8rem;
  cursor: pointer;
  list-style: none;
  width: max-content;
}
.ex-info summary::-webkit-details-marker {
  display: none;
}
.ex-info summary::before {
  content: "＋ ";
}
.ex-info[open] summary::before {
  content: "－ ";
}
.ex-aim,
.ex-home {
  color: var(--fg-dim);
  font-size: 0.86rem;
  margin: 8px 0 0;
}
.ex-home {
  color: var(--fg-faint);
}
.ex-cues {
  margin: 8px 0 0;
  padding-left: 18px;
  color: var(--fg-dim);
  font-size: 0.86rem;
}
.ex-cues li {
  margin: 3px 0;
}

/* ── session footer ──────────────────────────────────────────────── */
.session-footer {
  padding: 14px 16px;
  border-top: 1px solid var(--line);
  background: var(--bg-elev-2);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.session-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.session-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--fg-dim);
}
.srpe .tap {
  min-width: 40px;
  padding: 8px 0;
  text-align: center;
  flex: 1 1 auto;
}
.note {
  resize: vertical;
  min-height: 46px;
}
.session-actions {
  display: flex;
  gap: 10px;
  align-items: stretch;
}
.date {
  flex: 0 0 auto;
  width: auto;
  min-height: var(--tap);
}
.log-btn {
  flex: 1 1 auto;
}
.log-status {
  margin: 0;
  min-height: 1.1em;
  font-size: 0.85rem;
  color: var(--ok);
}
.log-status.is-error {
  color: var(--danger);
}

.footpad {
  height: env(safe-area-inset-bottom);
}

/* ── coach: review + proposals ───────────────────────────────────── */
.coach {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.coach[hidden] {
  display: none;
}

.coach-review {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.coach-review[hidden] {
  display: none;
}
.coach-heading {
  font-size: 1.05rem;
  color: var(--accent);
}
.coach-week {
  margin: 2px 0 8px;
  color: var(--fg-faint);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.coach-week[hidden] {
  display: none;
}
.coach-summary {
  color: var(--fg-dim);
  font-size: 0.92rem;
}
.coach-summary p {
  margin: 8px 0;
}
.coach-summary p:first-child {
  margin-top: 0;
}
.coach-summary p:last-child {
  margin-bottom: 0;
}
.coach-summary strong {
  color: var(--fg);
  font-weight: 700;
}
.coach-summary ul,
.coach-summary ol {
  margin: 8px 0;
  padding-left: 20px;
}
.coach-summary li {
  margin: 3px 0;
}

/* proposal cards */
.coach-proposals {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.coach-proposals:empty {
  display: none;
}
.proposal-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.proposal-card.is-safety {
  border-color: color-mix(in srgb, var(--danger) 55%, var(--line));
  background: color-mix(in srgb, var(--danger) 8%, var(--bg-elev));
}

.safety-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  align-self: flex-start;
  background: color-mix(in srgb, var(--danger) 18%, transparent);
  color: var(--danger);
  border: 1px solid color-mix(in srgb, var(--danger) 40%, transparent);
  border-radius: 999px;
  padding: 4px 11px;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.safety-mark {
  font-size: 0.9rem;
}

/* rationale + evidence side by side (stacks on narrow screens) */
.proposal-body {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.proposal-rationale {
  flex: 1 1 260px;
  margin: 0;
  color: var(--fg);
  font-size: 0.95rem;
  line-height: 1.5;
}
.proposal-evidence {
  flex: 1 1 200px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
}
.evidence-label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-faint);
  margin-bottom: 6px;
}
.evidence-text {
  margin: 0;
  color: var(--fg-dim);
  font-size: 0.85rem;
}
.evidence-list {
  margin: 0;
  padding-left: 16px;
  color: var(--fg-dim);
  font-size: 0.85rem;
}
.evidence-list li {
  margin: 2px 0;
  font-variant-numeric: tabular-nums;
}

/* structured diff */
.proposal-diff {
  list-style: none;
  margin: 0;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.diff-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 7px;
  font-size: 0.88rem;
}
.diff-key {
  color: var(--fg-dim);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.82rem;
}
.diff-field {
  color: var(--fg-faint);
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
}
.diff-val {
  color: var(--fg);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.diff-to {
  color: var(--accent);
}
.diff-arrow {
  color: var(--fg-faint);
}
.diff-move {
  color: var(--accent);
  font-weight: 600;
}

.proposal-msg {
  margin: 0;
  min-height: 1.1em;
  font-size: 0.85rem;
  color: var(--fg-dim);
}
.proposal-msg.is-error {
  color: var(--danger);
}

.proposal-actions {
  display: flex;
  gap: 10px;
}
.proposal-approve {
  flex: 1 1 auto;
}
.proposal-dismiss[hidden] {
  display: none;
}

/* inline dismiss panel */
.dismiss-panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 4px;
  border-top: 1px solid var(--line);
}
.dismiss-panel[hidden] {
  display: none;
}
.dismiss-reason {
  width: 100%;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px 12px;
  font-size: 0.92rem;
  resize: vertical;
  min-height: 44px;
}
.dismiss-ack {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 0.85rem;
  color: var(--fg-dim);
  cursor: pointer;
}
.dismiss-ack-box {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 1px;
  accent-color: var(--danger);
}
.dismiss-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}
.dismiss-confirm {
  flex: 0 0 auto;
  background: var(--danger);
  color: #150404;
}
.dismiss-confirm:disabled {
  opacity: 0.5;
  cursor: default;
}

/* ── light-scheme courtesy (dark is the design intent) ───────────── */
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f7fa;
    --bg-elev: #ffffff;
    --bg-elev-2: #eef2f7;
    --line: #d3dde7;
    --fg: #0e1720;
    --fg-dim: #47586a;
    --fg-faint: #6b7c8d;
  }
  .primary-btn,
  .ex-check:checked::after {
    color: #04120c;
  }
  .topbar {
    background: rgba(244, 247, 250, 0.85);
  }
}