/* IRONOS — Production Design System v4.2.0
   Anti-slop. Monochrome. 8px spatial grid. Single accent.
*/

:root {
  --bg:          #f7f7f5;
  --surface:     #ffffff;
  --surface-2:   #fafaf9;
  --ink:         #171717;
  --ink-2:       #404040;
  --muted:       #737373;
  --muted-2:     #a3a3a3;
  --border:      #e5e5e5;
  --border-2:    #d4d4d8;
  --accent:      #c8102e;
  --accent-ink:  #ffffff;
  --success:     #15803d;
  --warn:        #b45309;
  --danger:      #b91c1c;

  --s1: 4px; --s2: 8px; --s3: 12px; --s4: 16px;
  --s5: 24px; --s6: 32px; --s7: 48px; --s8: 64px;
  --radius: 6px;
  --radius-sm: 4px;

  --font:  'Geist', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono:  'Geist Mono', 'SF Mono', Menlo, monospace;

  --ease: cubic-bezier(.4,0,.2,1);
  --speed-fast: 120ms;

  --side-w:  240px;
  --right-w: 320px;
  --topbar-h: 48px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.45;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
img, svg { display: block; max-width: 100%; }

/* ── TYPOGRAPHY ─────────────────────────────────────── */
.wordmark {
  font-family: var(--font);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -.02em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.wordmark .mark {
  display: inline-block;
  width: 7px;
  height: 18px;
  background: var(--accent);
  border-radius: 1px;
}
.eyebrow {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}
.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.big-num { font-size: 28px; font-weight: 600; letter-spacing: -.04em; line-height: 1; }

/* ── PRE-GATE LOAD ─────────────────────────────────── */
.pre-app { display: grid; place-items: center; height: 100vh; background: var(--bg); }
.splash { text-align: center; }
.splash .wordmark { justify-content: center; margin-bottom: 12px; font-size: 24px; }
.pre-gate { display: none; }

/* ── AUTH BODY (login + legal + pricing) ────────────── */
.auth-body {
  min-height: 100vh;
  background: var(--bg);
  display: grid;
  place-items: center;
  padding: var(--s5);
}
.auth-shell {
  width: 100%;
  max-width: 1080px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
  min-height: 580px;
}
.auth-brand {
  background: var(--ink);
  color: #f5f5f5;
  padding: var(--s7);
  display: flex;
  flex-direction: column;
  gap: var(--s5);
}
.auth-brand .wordmark { color: #fff; }
.auth-brand .wordmark .mark { background: var(--accent); }
.auth-hero { display: flex; flex-direction: column; gap: var(--s3); }
.auth-hero h1 {
  font-size: 36px;
  font-weight: 600;
  letter-spacing: -.05em;
  line-height: 1.05;
}
.auth-hero .lead { color: #a3a3a3; max-width: 38ch; }
.bullets { list-style: none; display: flex; flex-direction: column; gap: var(--s2); }
.bullets li { display: flex; align-items: center; gap: 10px; color: #d4d4d4; font-size: 13px; }
.bullets .dot { width: 6px; height: 6px; background: var(--accent); border-radius: 50%; flex: none; }
.auth-foot { margin-top: auto; color: #737373; font-size: 12px; }

.auth-card {
  padding: var(--s7);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--s4);
}
.auth-card h2 { font-size: 24px; font-weight: 600; letter-spacing: -.03em; }
.auth-rule {
  display: flex; align-items: center; gap: 12px;
  font-size: 11px; text-transform: uppercase; letter-spacing: .14em; color: var(--muted);
}
.auth-rule::before, .auth-rule::after { content: ''; flex: 1; height: 1px; background: var(--border); }

.field { display: flex; flex-direction: column; gap: var(--s2); }
.field-label {
  font-size: 11px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--muted);
}
.input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  font: inherit;
  font-size: 14px;
  color: var(--ink);
  transition: border-color var(--speed-fast) var(--ease), box-shadow var(--speed-fast) var(--ease);
}
.input:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 1px var(--ink) inset; }
textarea.input { resize: vertical; min-height: 80px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 500;
  background: transparent;
  color: var(--ink);
  transition: background var(--speed-fast) var(--ease), border-color var(--speed-fast) var(--ease), color var(--speed-fast) var(--ease), transform 100ms var(--ease);
}
.btn:hover { background: var(--surface-2); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-primary:hover { background: #a40d27; border-color: #a40d27; }
.btn-google { border: 1px solid var(--border-2); background: var(--surface); }
.btn-google:hover { background: var(--surface-2); }
.btn-secondary { border: 1px solid var(--border-2); background: var(--surface); }
.btn-ghost { background: transparent; border: 1px solid var(--border); }
.btn-full { width: 100%; }
.btn-lg { padding: 14px 18px; font-size: 15px; font-weight: 600; }

.check-line { display: flex; align-items: center; gap: 10px; font-size: 14px; cursor: pointer; padding: 6px 0; }
.check-line input { width: 16px; height: 16px; }

.fine { font-size: 11px; color: var(--muted); }
.fine a { text-decoration: underline; }
#auth-status.error, #legal-status.error, #checkout-status.error { color: var(--danger); }
.mt-2 { margin-top: 12px; }
.mt-3 { margin-top: 24px; }

/* ── PRICING ───────────────────────────────────────── */
.pricing-shell {
  width: 100%;
  max-width: 720px;
  display: flex;
  flex-direction: column;
  gap: var(--s5);
}
.pricing-head { display: flex; justify-content: space-between; align-items: center; }
.pricing-hero { display: flex; flex-direction: column; gap: var(--s3); }
.pricing-hero h1 { font-size: 36px; font-weight: 600; letter-spacing: -.05em; line-height: 1.05; }
.pricing-card { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); padding: var(--s6); display: flex; flex-direction: column; gap: var(--s4); }
.price-row { display: flex; justify-content: space-between; align-items: baseline; padding-bottom: var(--s3); border-bottom: 1px solid var(--border); }
.price-amount { font-size: 40px; font-weight: 600; letter-spacing: -.04em; }
.price-period { font-size: 14px; font-weight: 400; color: var(--muted); margin-left: 6px; }
.price-tag { font-size: 11px; padding: 4px 10px; border: 1px solid var(--border); border-radius: 999px; color: var(--ink-2); }
.feature-list { list-style: none; display: flex; flex-direction: column; gap: var(--s2); }
.feature-list li { display: flex; align-items: center; gap: 10px; font-size: 13px; }
.feature-list .check { width: 14px; height: 14px; background: var(--accent); -webkit-mask: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='white' d='M9 16.2L4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/contain no-repeat; mask: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='white' d='M9 16.2L4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/contain no-repeat; }
.pricing-foot { text-align: center; padding-top: var(--s4); }

/* ── LEGAL ─────────────────────────────────────────── */
.legal-shell { width: 100%; max-width: 720px; display: flex; flex-direction: column; gap: var(--s4); }
.legal-shell h1 { font-size: 28px; font-weight: 600; letter-spacing: -.03em; }
.legal-content { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); padding: var(--s5); display: flex; flex-direction: column; gap: var(--s3); max-height: 50vh; overflow-y: auto; }
.legal-content h3 { font-size: 13px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; margin-top: var(--s2); }
.legal-content p { font-size: 13px; color: var(--ink-2); line-height: 1.6; }
.legal-form { display: flex; flex-direction: column; gap: var(--s3); }

/* ── APP BODY (three-panel shell) ──────────────────── */
.app-body { background: var(--bg); height: 100vh; overflow: hidden; }
.app-body:not(.pre-gate) .pre-gate { display: grid; }

.pre-gate {
  display: grid;
  grid-template-columns: var(--side-w) 1fr var(--right-w);
  height: 100vh;
  background: var(--bg);
}

/* ── PANEL A: SIDEBAR ─────────────────────────────── */
.panel-a {
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: var(--s4);
  display: flex;
  flex-direction: column;
  gap: var(--s4);
  overflow-y: auto;
}
.panel-a .brand { padding-bottom: var(--s3); border-bottom: 1px solid var(--border); }
.hardware { display: flex; flex-direction: column; gap: var(--s2); }
.hw-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 10px; border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 12px;
}
.hw-name { color: var(--ink-2); }
.hw-status { font-size: 10px; font-weight: 600; letter-spacing: .12em; padding: 2px 6px; border-radius: 3px; }
.status-streaming    { color: var(--success); background: #ecfdf5; border: 1px solid #bbf7d0; }
.status-connected    { color: var(--success); background: #ecfdf5; border: 1px solid #bbf7d0; }
.status-disconnected { color: var(--muted);   background: var(--surface-2); border: 1px solid var(--border); }

.athlete-card, .swim-cap { display: flex; flex-direction: column; gap: var(--s2); padding-top: var(--s3); border-top: 1px solid var(--border); }
.athlete-name { font-size: 14px; font-weight: 600; }
.athlete-meta { font-size: 12px; color: var(--muted); }
.athlete-timer .big-num { font-size: 32px; }
.swim-value { font-size: 18px; font-weight: 600; letter-spacing: -.02em; }

.nav-rail { display: flex; flex-direction: column; gap: 2px; margin-top: auto; padding-top: var(--s3); border-top: 1px solid var(--border); }
.nav-btn {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; height: 32px;
  background: transparent; border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 13px; font-weight: 500;
  color: var(--ink-2);
  text-align: left;
  transition: background var(--speed-fast) var(--ease);
}
.nav-btn:hover { background: var(--surface-2); }
.nav-btn.active { background: var(--ink); color: #fff; }
.nav-btn.active::before { content: ''; width: 6px; height: 6px; background: var(--accent); border-radius: 50%; flex: none; }
.logout {
  background: transparent; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 8px 12px; font-size: 12px; color: var(--ink-2);
  transition: background var(--speed-fast) var(--ease);
}
.logout:hover { background: var(--surface-2); }

/* ── PANEL B: CENTRAL CANVAS ─────────────────────── */
.panel-b {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow-y: auto;
  background: var(--bg);
}
.topbar {
  height: var(--topbar-h);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--s5);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  flex: none;
}
.topbar h1 { font-size: 14px; font-weight: 600; letter-spacing: -.01em; }
.topbar-meta { display: flex; gap: 8px; align-items: center; }
.badge {
  font-family: var(--mono);
  font-size: 11px;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--ink-2);
}
.badge b { color: var(--ink); }

.view { display: none; padding: var(--s5); gap: var(--s4); flex-direction: column; }
.view.view-active { display: flex; }

/* ── METRIC GRID ─────────────────────────────────── */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
}
.metric {
  padding: var(--s4);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: var(--s2);
}
.metric:last-child { border-right: none; }
.metric-primary { background: var(--surface-2); }

/* ── PANEL (generic container) ───────────────────── */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--s4);
  display: flex;
  flex-direction: column;
  gap: var(--s3);
}
.panel-head {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: var(--s2); border-bottom: 1px solid var(--border);
  margin-bottom: var(--s2);
}
.panel-head h3 { font-size: 14px; font-weight: 600; }
.panel .panel-head h3 { letter-spacing: -.01em; }

/* ── CALENDAR ROWS (this week) ───────────────────── */
.calendar-rows { display: flex; flex-direction: column; gap: 0; }
.calendar-row {
  display: grid;
  grid-template-columns: 80px 1fr 120px;
  gap: var(--s4);
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.calendar-row:last-child { border-bottom: none; }
.day-label { font-family: var(--mono); font-size: 11px; font-weight: 600; color: var(--muted); letter-spacing: .04em; }
.workout-cell .title { font-size: 13px; font-weight: 500; }
.workout-cell .meta { font-size: 11px; color: var(--muted); }
.workout-cell .meta .zone-pill { display: inline-block; padding: 1px 5px; border-radius: 3px; background: var(--surface-2); border: 1px solid var(--border); font-family: var(--mono); font-size: 10px; margin-right: 4px; }
.workout-cell .meta .zone-pill.zone-2 { color: #075985; border-color: #bae6fd; background: #f0f9ff; }
.workout-cell .meta .zone-pill.zone-3 { color: #92400e; border-color: #fde68a; background: #fffbeb; }
.workout-cell .meta .zone-pill.zone-4 { color: #991b1b; border-color: #fecaca; background: #fef2f2; }
.workout-cell .meta .zone-pill.rest { color: var(--muted); }
.duration { font-family: var(--mono); font-size: 12px; color: var(--ink-2); text-align: right; }

.key-session { display: grid; grid-template-columns: auto 1fr auto; gap: var(--s4); align-items: center; }
.sport-mark {
  font-family: var(--mono); font-size: 11px; font-weight: 600; letter-spacing: .1em;
  padding: 8px 12px; background: var(--ink); color: #fff; border-radius: 4px;
}
.text-right { text-align: right; }

/* ── PLAN TREE ────────────────────────────────────── */
.plan-tree { display: flex; flex-direction: column; gap: var(--s3); }
.phase-block { border: 1px solid var(--border); border-radius: var(--radius); padding: var(--s3); }
.phase-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: var(--s2); }
.phase-head .title { font-size: 13px; font-weight: 600; }
.phase-head .range { font-size: 11px; color: var(--muted); font-family: var(--mono); }
.week-row {
  display: grid; grid-template-columns: 60px 1fr 80px; gap: var(--s3); align-items: center;
  padding: 6px 0; border-top: 1px solid var(--border); font-size: 12px;
}
.week-row .wn { font-family: var(--mono); color: var(--muted); }
.week-row .wk { display: flex; flex-wrap: wrap; gap: 6px; }
.week-row .wk .wkt {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px; border: 1px solid var(--border); border-radius: 3px; font-size: 11px;
}
.week-row .wk .wkt.s-Swim { color: #0369a1; border-color: #bae6fd; background: #f0f9ff; }
.week-row .wk .wkt.s-Bike { color: #6d28d9; border-color: #ddd6fe; background: #f5f3ff; }
.week-row .wk .wkt.s-Run  { color: #b45309; border-color: #fde68a; background: #fffbeb; }
.week-row .wk .wkt.s-Strength { color: var(--ink-2); }
.week-row .wk .wkt.s-Rest { color: var(--muted); background: var(--surface-2); }
.week-row .tss { font-family: var(--mono); font-size: 11px; color: var(--ink-2); text-align: right; }

.empty {
  border: 1px dashed var(--border-2);
  border-radius: var(--radius);
  padding: var(--s5);
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

/* ── SIGNALS (check-in) ──────────────────────────── */
.signal-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s3); }
.signal { display: flex; flex-direction: column; gap: var(--s2); padding: var(--s3); border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.signal h4 { font-size: 12px; font-weight: 600; }
.signal .scale { display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px; }
.signal .scale button { padding: 8px 0; border: 1px solid var(--border); border-radius: 4px; background: var(--surface); font-size: 11px; font-family: var(--mono); }
.signal .scale button.selected { background: var(--ink); color: #fff; border-color: var(--ink); }
.signal .scale button:hover:not(.selected) { background: var(--surface-2); }

.verdict { border: 1px solid var(--border); border-radius: var(--radius); padding: var(--s4); background: var(--surface-2); }
.verdict.medical { border-color: var(--danger); background: #fef2f2; }
.verdict.recovery { border-color: #f59e0b; background: #fffbeb; }
.verdict.ease { border-color: #d97706; background: #fffbeb; }
.verdict.accelerate { border-color: #15803d; background: #f0fdf4; }
.verdict .label { font-family: var(--mono); font-size: 11px; font-weight: 600; letter-spacing: .14em; }
.verdict .reasoning { font-size: 13px; margin-top: 6px; }
.verdict .next { font-size: 12px; color: var(--ink-2); margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--border); }

/* ── ACTIVITY LIST ────────────────────────────────── */
.activity-list { display: flex; flex-direction: column; gap: 0; }
.activity-row {
  display: grid;
  grid-template-columns: 80px 100px 1fr 100px 80px;
  gap: var(--s3);
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
  font-size: 13px;
}
.activity-row .sport { font-family: var(--mono); font-weight: 600; font-size: 11px; letter-spacing: .04em; }
.activity-row .when { font-family: var(--mono); font-size: 11px; color: var(--muted); }
.activity-row .desc { font-size: 12px; color: var(--ink-2); }
.activity-row .nums { font-family: var(--mono); font-size: 12px; text-align: right; color: var(--ink-2); }
.activity-row .compliance { font-family: var(--mono); font-size: 11px; text-align: right; }

/* ── FORM GRID (intake) ───────────────────────────── */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s4); }
.form-grid .field.full { grid-column: 1 / -1; }
.form-grid .field.span2 { grid-column: 1 / -1; }
.medical-block { border: 1px solid var(--border); border-radius: var(--radius); padding: var(--s3); display: flex; flex-wrap: wrap; gap: var(--s2); }
.medic-tag { padding: 6px 12px; border: 1px solid var(--border); border-radius: 999px; font-size: 12px; background: var(--surface); cursor: pointer; user-select: none; }
.medic-tag.selected { background: var(--ink); color: #fff; border-color: var(--ink); }
.medic-tag.danger.selected { background: var(--danger); border-color: var(--danger); }

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

/* ── BILLING ───────────────────────────────────────── */
.billing-info { display: flex; flex-direction: column; gap: var(--s3); }
.billing-info .row2 { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--border); }
.billing-info .row2:last-child { border-bottom: none; }

/* ── PANEL C: AI COMPANION ────────────────────────── */
.panel-c {
  background: var(--surface);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}
.panel-c-head { padding: var(--s4); border-bottom: 1px solid var(--border); }
.panel-c-head h3 { font-size: 14px; font-weight: 600; }
.chat-stream {
  flex: 1;
  overflow-y: auto;
  padding: var(--s4);
  display: flex;
  flex-direction: column;
  gap: var(--s3);
}
.chat-msg {
  padding: var(--s3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
  font-size: 12px;
  line-height: 1.5;
}
.chat-msg.chat-system { background: var(--ink); color: #f5f5f5; border-color: var(--ink); }
.chat-msg.chat-system .chat-label { color: var(--accent); }
.chat-msg.chat-user { background: var(--surface); border-color: var(--ink); }
.chat-msg.chat-coach { background: #fff; }
.chat-label { display: inline-block; font-family: var(--mono); font-size: 10px; font-weight: 600; letter-spacing: .14em; margin-bottom: 6px; }
.chat-input {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--s2);
  padding: var(--s3);
  border-top: 1px solid var(--border);
  background: var(--surface);
}

/* ── RESPONSIVE ────────────────────────────────────── */
@media (max-width: 1200px) {
  .pre-gate { grid-template-columns: var(--side-w) 1fr; }
  .panel-c { display: none; }
  .signal-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .auth-shell { grid-template-columns: 1fr; min-height: auto; }
  .auth-brand { padding: var(--s5); }
  .auth-hero h1 { font-size: 28px; }
  .pre-gate { grid-template-columns: 1fr; }
  .panel-a { display: none; }
  .topbar { padding: 0 var(--s3); }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .metric { border-right: none; border-bottom: 1px solid var(--border); }
  .metric:nth-child(odd) { border-right: 1px solid var(--border); }
  .signal-grid { grid-template-columns: 1fr; }
}