/* meridian.css — Connected Worker Platform dark industrial theme */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=Space+Mono:wght@400;700&display=swap');

/* ── Variables ───────────────────────────────────────────────────────────── */
:root {
  --mer-bg:          #0d1117;
  --mer-surface:     #161b22;
  --mer-surface-2:   #1c2128;
  --mer-border:      #2a323d;
  --mer-teal:        #2dd4bf;
  --mer-teal-dim:    #1a8a7a;
  --mer-teal-glow:   rgba(45,212,191,0.15);
  --mer-success:     #34d399;
  --mer-warning:     #f5a623;
  --mer-danger:      #f43f5e;
  --mer-text:        #e6edf3;
  --mer-text-muted:  #8b949e;
  --mer-text-dim:   #484f58;
  --mer-radius:      1.25rem;
  --mer-radius-sm:   0.625rem;
}

/* ── Base ─────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; }

body {
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  background-color: var(--mer-bg);
  color: var(--mer-text);
  min-height: 100vh;
  /* teal grid texture */
  background-image:
    linear-gradient(var(--mer-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--mer-border) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: center center;
}

/* ── Nav ──────────────────────────────────────────────────────────────────── */
.mer-nav {
  background: var(--mer-surface);
  border-bottom: 1px solid var(--mer-border);
  padding: 0.875rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}

.mer-logo {
  font-family: 'Space Mono', monospace;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--mer-teal);
}

.mer-serial {
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--mer-text-muted);
  text-transform: uppercase;
}

/* ── Main ─────────────────────────────────────────────────────────────────── */
.mer-main {
  max-width: 640px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

/* ── Page header ──────────────────────────────────────────────────────────── */
.mer-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.mer-page-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--mer-text);
}

.mer-back {
  font-size: 0.875rem;
  color: var(--mer-teal);
  text-decoration: none;
  font-weight: 500;
}

.mer-back:hover { text-decoration: underline; }

/* ── Landing ──────────────────────────────────────────────────────────────── */
.mer-landing {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3rem;
  padding: 2rem 0;
}

.mer-landing-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.mer-logo-glyph {
  width: 80px;
  height: 80px;
  background: var(--mer-teal);
  color: var(--mer-bg);
  font-family: 'Space Mono', monospace;
  font-size: 3rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--mer-radius);
}

.mer-logo-text {
  font-family: 'Space Mono', monospace;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--mer-teal);
}

.mer-tagline {
  font-size: 0.875rem;
  color: var(--mer-text-muted);
  letter-spacing: 0.05em;
}

.mer-landing-tiles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  width: 100%;
}

.mer-tile {
  background: var(--mer-surface);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius);
  padding: 1.5rem;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.mer-tile:hover {
  border-color: var(--mer-teal);
  box-shadow: 0 0 20px var(--mer-teal-glow);
}

.mer-tile-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.mer-tile-label {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--mer-text);
}

.mer-tile-sub {
  font-size: 0.8125rem;
  color: var(--mer-text-muted);
}

/* ── Sign-in ──────────────────────────────────────────────────────────────── */
.mer-signin-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem 0;
}

.mer-signin-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.mer-signin-title {
  font-family: 'Space Mono', monospace;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--mer-teal);
}

.mer-signin-sub {
  font-size: 0.875rem;
  color: var(--mer-text-muted);
}

/* PIN display */
.mer-pin-display {
  font-family: 'Space Mono', monospace;
  font-size: 2.5rem;
  letter-spacing: 0.4em;
  color: var(--mer-teal);
  background: var(--mer-surface);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius-sm);
  padding: 1rem 2rem;
  margin-bottom: 1.5rem;
  min-width: 200px;
  text-align: center;
}

/* Keypad */
.mer-keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  width: 100%;
  max-width: 300px;
}

.mer-key {
  height: 5rem;
  background: var(--mer-surface-2);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius-sm);
  font-family: 'Space Mono', monospace;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--mer-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.1s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
}

.mer-key:active {
  background: var(--mer-teal-dim);
  transform: scale(0.96);
}

.mer-key.mer-key-clear { color: var(--mer-danger); }
.mer-key.mer-key-back { font-size: 1.25rem; }

.mer-pin-error {
  color: var(--mer-danger);
  font-size: 0.875rem;
  margin-top: 1rem;
  text-align: center;
}

/* ── Floor Home ──────────────────────────────────────────────────────────── */
.mer-home-worker {
  margin-bottom: 2rem;
}

.mer-welcome {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mer-welcome-name {
  font-size: 1.5rem;
  font-weight: 700;
}

.mer-welcome-badge {
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--mer-text-muted);
  text-transform: uppercase;
}

.mer-home-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

.mer-home-tile {
  background: var(--mer-surface);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius);
  padding: 1.25rem;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.mer-home-tile:hover {
  border-color: var(--mer-teal);
  box-shadow: 0 0 16px var(--mer-teal-glow);
}

.mer-home-tile-icon {
  font-size: 1.75rem;
}

.mer-home-tile-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--mer-text);
}

.mer-home-tile-sub {
  font-size: 0.8125rem;
  color: var(--mer-text-muted);
}

.mer-home-signout {
  text-align: center;
}

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.mer-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--mer-radius-sm);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: background 0.15s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
}

.mer-btn:active { transform: scale(0.97); }

.mer-btn-primary {
  background: var(--mer-teal);
  color: var(--mer-bg);
}
.mer-btn-primary:hover { background: #26c4b0; }

.mer-btn-secondary {
  background: var(--mer-surface-2);
  color: var(--mer-text);
  border: 1px solid var(--mer-border);
}
.mer-btn-secondary:hover { border-color: var(--mer-teal); }

.mer-btn-ghost {
  background: transparent;
  color: var(--mer-text-muted);
  border: 1px solid var(--mer-border);
}
.mer-btn-ghost:hover { color: var(--mer-text); border-color: var(--mer-text-muted); }

.mer-btn-success {
  background: var(--mer-success);
  color: #0d1117;
}

.mer-btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
  border-radius: var(--mer-radius);
}

/* ── List items ──────────────────────────────────────────────────────────── */
.mer-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mer-list-item {
  background: var(--mer-surface);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius);
  padding: 1rem 1.25rem;
  text-decoration: none;
  display: block;
  transition: border-color 0.15s;
}

.mer-list-item:hover { border-color: var(--mer-teal); }

.mer-list-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--mer-text);
  margin-bottom: 0.25rem;
}

.mer-list-sub {
  font-size: 0.8125rem;
  color: var(--mer-text-muted);
}

.mer-empty {
  color: var(--mer-text-muted);
  text-align: center;
  padding: 2rem;
  font-size: 0.9375rem;
}

/* ── Work Instruction steps ──────────────────────────────────────────────── */
.mer-step-counter {
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--mer-teal);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.mer-instruction-steps {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.mer-step {
  background: var(--mer-surface);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius);
  padding: 1.25rem;
}

.mer-step-num {
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--mer-teal);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.mer-step-body {
  font-size: 1rem;
  color: var(--mer-text);
  line-height: 1.6;
}

.mer-step-caution-box {
  background: rgba(245,166,35,0.12);
  border: 1px solid var(--mer-warning);
  border-left: 3px solid var(--mer-warning);
  border-radius: var(--mer-radius-sm);
  padding: 0.75rem 1rem;
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--mer-warning);
}

.mer-step-image {
  max-width: 100%;
  border-radius: var(--mer-radius-sm);
  margin-top: 0.75rem;
}

.mer-instruction-nav {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.mer-mark-complete {
  text-align: center;
  padding-top: 1rem;
  border-top: 1px solid var(--mer-border);
}

/* ── Checklists ──────────────────────────────────────────────────────────── */
.mer-cl-progress {
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--mer-text-muted);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.mer-cl-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.mer-cl-item {
  background: var(--mer-surface);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius);
  padding: 1rem 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: border-color 0.15s, background 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.mer-cl-item:hover { border-color: var(--mer-teal); }

.mer-cl-item-done {
  background: rgba(52,211,153,0.08);
  border-color: var(--mer-success);
}

.mer-cl-check {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mer-cl-check-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.mer-cl-item-done .mer-cl-check-icon::before { content: '✓'; color: var(--mer-success); }

.mer-cl-label {
  font-size: 1rem;
  color: var(--mer-text);
  line-height: 1.4;
}

.mer-cl-item-done .mer-cl-label {
  text-decoration: line-through;
  color: var(--mer-text-muted);
}

.mer-cl-complete-wrap {
  text-align: center;
  padding-top: 1rem;
  border-top: 1px solid var(--mer-border);
}

/* ── Skills ───────────────────────────────────────────────────────────────── */
.mer-skills-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mer-skill-card {
  background: var(--mer-surface);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius);
  padding: 1.25rem;
}

.mer-skill-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.mer-skill-name {
  font-size: 1rem;
  font-weight: 600;
}

.mer-skill-level {
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
}

.mer-skill-certified { background: rgba(52,211,153,0.15); color: var(--mer-success); }
.mer-skill-trained   { background: rgba(139,148,158,0.15); color: var(--mer-text-muted); }

.mer-skill-desc {
  font-size: 0.875rem;
  color: var(--mer-text-muted);
  margin-bottom: 0.5rem;
}

.mer-skill-expiry {
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  color: var(--mer-text-muted);
  letter-spacing: 0.06em;
}

.mer-skill-expiry.expired { color: var(--mer-danger); }

/* ── Rounds Execution ──────────────────────────────────────────────────────── */
.mer-round-header {
  background: var(--mer-surface);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.mer-round-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--mer-text);
  margin-bottom: 0.5rem;
}

.mer-round-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--mer-text-muted);
  margin-bottom: 1rem;
}

.mer-round-timestamp {
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  color: var(--mer-text-dim);
  letter-spacing: 0.06em;
}

.mer-round-progress-bar {
  height: 6px;
  background: var(--mer-surface-2);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.mer-round-progress-fill {
  height: 100%;
  background: var(--mer-teal);
  border-radius: 999px;
  transition: width 0.3s ease;
}

.mer-round-progress-text {
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  color: var(--mer-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Station card */
.mer-station-card {
  background: var(--mer-surface);
  border: 2px solid var(--mer-border);
  border-radius: var(--mer-radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
  transition: border-color 0.2s;
}

.mer-station-card.mer-station-done {
  border-color: var(--mer-success);
  background: rgba(52,211,153,0.06);
}

.mer-station-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.mer-station-name {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--mer-text);
}

.mer-station-location {
  font-size: 0.8125rem;
  color: var(--mer-text-muted);
  margin-top: 0.125rem;
}

.mer-station-badge {
  font-family: 'Space Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: var(--mer-teal-glow);
  color: var(--mer-teal);
}

.mer-station-badge.mer-badge-op { background: rgba(14,165,233,0.15); color: #38bdf8; }
.mer-station-badge.mer-badge-maint { background: rgba(245,166,35,0.12); color: var(--mer-warning); }

/* Centerline reading rows */
.mer-reading-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mer-reading-row {
  background: var(--mer-surface-2);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius-sm);
  padding: 1rem;
}

.mer-reading-label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--mer-text);
  margin-bottom: 0.25rem;
}

.mer-reading-target {
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  color: var(--mer-text-muted);
  letter-spacing: 0.06em;
  margin-bottom: 0.875rem;
}

.mer-reading-input-row {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.mer-reading-input {
  flex: 1;
  background: var(--mer-bg);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius-sm);
  color: var(--mer-text);
  font-family: 'Space Mono', monospace;
  font-size: 1.5rem;
  font-weight: 700;
  padding: 0.75rem 1rem;
  text-align: center;
  min-width: 0;
}

.mer-reading-input:focus {
  outline: none;
  border-color: var(--mer-teal);
  box-shadow: 0 0 0 2px var(--mer-teal-glow);
}

.mer-reading-input.mer-reading-ok { border-color: var(--mer-success); }
.mer-reading-input.mer-reading-ok:focus { box-shadow: 0 0 0 2px rgba(52,211,153,0.2); }
.mer-reading-input.mer-reading-fail {
  border-color: var(--mer-danger);
  animation: mer-reading-pulse 0.6s ease-in-out 3;
}

@keyframes mer-reading-pulse {
  0%, 100% { background: var(--mer-bg); }
  50% { background: rgba(244,63,94,0.15); }
}

.mer-reading-unit {
  font-family: 'Space Mono', monospace;
  font-size: 0.875rem;
  color: var(--mer-text-muted);
  width: 3rem;
  flex-shrink: 0;
}

/* Pass/fail indicator */
.mer-reading-status {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-top: 0.5rem;
  min-height: 1.5rem;
}

.mer-reading-status.mer-status-ok { color: var(--mer-success); }
.mer-reading-status.mer-status-fail { color: var(--mer-danger); }

/* Pass/fail toggle for pass_fail type */
.mer-pf-toggle {
  display: flex;
  gap: 0.75rem;
}

.mer-pf-btn {
  flex: 1;
  height: 3rem;
  border-radius: var(--mer-radius-sm);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  border: 2px solid var(--mer-border);
  background: var(--mer-surface-2);
  color: var(--mer-text-muted);
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  -webkit-tap-highlight-color: transparent;
}

.mer-pf-btn:active { transform: scale(0.97); }

.mer-pf-btn.mer-pf-pass.mer-pf-selected {
  background: rgba(52,211,153,0.15);
  border-color: var(--mer-success);
  color: var(--mer-success);
}

.mer-pf-btn.mer-pf-fail.mer-pf-selected {
  background: rgba(244,63,94,0.15);
  border-color: var(--mer-danger);
  color: var(--mer-danger);
}

/* Optional notes */
.mer-reading-notes {
  margin-top: 0.75rem;
}

.mer-reading-notes-toggle {
  font-size: 0.8125rem;
  color: var(--mer-text-muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
}

.mer-reading-notes-input {
  width: 100%;
  background: var(--mer-bg);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius-sm);
  color: var(--mer-text);
  font-size: 0.875rem;
  padding: 0.625rem 0.875rem;
  margin-top: 0.5rem;
  resize: none;
  font-family: 'IBM Plex Sans', sans-serif;
}

.mer-reading-notes-input:focus {
  outline: none;
  border-color: var(--mer-teal);
}

/* Photo button */
.mer-photo-btn {
  background: var(--mer-surface);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius-sm);
  color: var(--mer-text-muted);
  padding: 0.5rem 0.875rem;
  font-size: 0.8125rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  transition: border-color 0.15s, color 0.15s;
  flex-shrink: 0;
}

.mer-photo-btn:hover { border-color: var(--mer-teal); color: var(--mer-teal); }

/* Station nav */
.mer-station-nav {
  display: flex;
  gap: 1rem;
  margin: 1.5rem 0;
}

/* Summary screen */
.mer-summary-station {
  background: var(--mer-surface);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius);
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
}

.mer-summary-station-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.mer-summary-station-name {
  font-weight: 600;
  font-size: 1rem;
}

.mer-summary-counts {
  display: flex;
  gap: 1rem;
  font-size: 0.8125rem;
  font-weight: 600;
}

.mer-summary-ok { color: var(--mer-success); }
.mer-summary-fail { color: var(--mer-danger); }

.mer-summary-reading-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.375rem 0;
  font-size: 0.875rem;
}

.mer-summary-reading-label { color: var(--mer-text); flex: 1; }
.mer-summary-reading-value { font-family: 'Space Mono', monospace; font-size: 0.8rem; }
.mer-summary-reading-value.mer-val-fail { color: var(--mer-danger); font-weight: 700; }
.mer-summary-reading-value.mer-val-ok { color: var(--mer-success); }

.mer-summary-total {
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  color: var(--mer-text-muted);
  text-align: center;
  margin: 1.5rem 0;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Sign-off */
.mer-signoff {
  background: var(--mer-surface);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius);
  padding: 1.5rem;
  margin-top: 1.5rem;
  text-align: center;
}

.mer-signoff-label {
  font-size: 0.875rem;
  color: var(--mer-text-muted);
  margin-bottom: 1rem;
  font-weight: 500;
}

.mer-initials-input {
  background: var(--mer-bg);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius-sm);
  color: var(--mer-teal);
  font-family: 'Space Mono', monospace;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-align: center;
  padding: 0.75rem 1.5rem;
  width: 120px;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.mer-initials-input:focus {
  outline: none;
  border-color: var(--mer-teal);
  box-shadow: 0 0 0 2px var(--mer-teal-glow);
}

/* Rounds list */
.mer-round-list-item {
  background: var(--mer-surface);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius);
  padding: 1rem 1.25rem;
  text-decoration: none;
  display: block;
  margin-bottom: 0.75rem;
  transition: border-color 0.15s;
}

.mer-round-list-item:hover { border-color: var(--mer-teal); }

.mer-list-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.25rem;
}

.mer-list-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--mer-text);
}

.mer-list-sub {
  font-size: 0.8125rem;
  color: var(--mer-text-muted);
}

.mer-round-status-pill {
  font-family: 'Space Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
}

.mer-round-status-pill.mer-status-new { background: rgba(14,165,233,0.15); color: #38bdf8; }
.mer-round-status-pill.mer-status-active { background: rgba(245,166,35,0.12); color: var(--mer-warning); }
.mer-round-status-pill.mer-status-done { background: rgba(52,211,153,0.15); color: var(--mer-success); }

/* ── Shift handoff ────────────────────────────────────────────────────────── */
.mer-handoff-card {
  background: var(--mer-surface);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius);
  padding: 1.5rem;
}

.mer-handoff-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.mer-handoff-shift {
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mer-teal);
  background: var(--mer-teal-glow);
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
}

.mer-handoff-author {
  font-size: 0.875rem;
  color: var(--mer-text);
  font-weight: 500;
}

.mer-handoff-date {
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  color: var(--mer-text-dim);
  letter-spacing: 0.06em;
}

.mer-handoff-notes {
  font-size: 0.9375rem;
  color: var(--mer-text);
  line-height: 1.7;
}

/* ── Admin ───────────────────────────────────────────────────────────────── */
.mer-admin-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

.mer-stat-card {
  background: var(--mer-surface);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius);
  padding: 1.25rem;
  text-align: center;
}

.mer-stat-num {
  font-family: 'Space Mono', monospace;
  font-size: 2rem;
  font-weight: 700;
  color: var(--mer-teal);
  margin-bottom: 0.25rem;
}

.mer-stat-label {
  font-size: 0.8125rem;
  color: var(--mer-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.mer-admin-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Admin login */
.mer-admin-login-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  max-width: 280px;
}

.mer-admin-passcode-input {
  background: var(--mer-surface-2);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius-sm);
  color: var(--mer-text);
  font-family: 'Space Mono', monospace;
  font-size: 1.25rem;
  padding: 0.875rem 1.25rem;
  text-align: center;
  letter-spacing: 0.3em;
  width: 100%;
}

.mer-admin-passcode-input:focus {
  outline: none;
  border-color: var(--mer-teal);
}

/* ── Badges ──────────────────────────────────────────────────────────────── */
.mer-badge {
  font-family: 'Space Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  display: inline-block;
}

.mer-badge-published {
  background: rgba(52,211,153,0.15);
  color: var(--mer-success);
}

.mer-badge-draft {
  background: rgba(139,148,158,0.15);
  color: var(--mer-text-muted);
}

/* ── Rounds tabs ─────────────────────────────────────────────────────────── */
.mer-tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--mer-border);
  margin-bottom: 1.5rem;
}

.mer-tab {
  flex: 1;
  text-align: center;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--mer-text-muted);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: color 0.15s, border-color 0.15s;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.mer-tab:hover { color: var(--mer-text); }

.mer-tab.mer-tab-active {
  color: var(--mer-teal);
  border-bottom-color: var(--mer-teal);
}

.mer-tab-badge {
  background: var(--mer-surface-2);
  color: var(--mer-text-muted);
  font-size: 0.75rem;
  padding: 0.125rem 0.5rem;
  border-radius: 999px;
}

.mer-tab-content { display: none; }
.mer-tab-content.mer-tab-content-active { display: block; }

/* ── Round cards ─────────────────────────────────────────────────────────── */
.mer-round-card {
  background: var(--mer-surface);
  border: 1px solid var(--mer-border);
  border-radius: var(--mer-radius);
  margin-bottom: 0.875rem;
  overflow: hidden;
  transition: border-color 0.15s;
}

.mer-round-card:hover { border-color: var(--mer-teal); }

.mer-round-card-body { padding: 1.125rem 1.25rem; }

.mer-round-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  gap: 0.75rem;
}

.mer-round-card-name {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--mer-text);
}

.mer-round-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.8125rem;
  color: var(--mer-text-muted);
  margin-bottom: 0.75rem;
}

.mer-round-card-last {
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  color: var(--mer-text-dim);
  letter-spacing: 0.06em;
}

.mer-round-card-footer {
  border-top: 1px solid var(--mer-border);
  padding: 0.875rem 1.25rem;
  display: flex;
  justify-content: flex-end;
}

/* ── Status indicators ──────────────────────────────────────────────────── */
.mer-status-green  { color: var(--mer-success); }
.mer-status-amber  { color: var(--mer-warning); }
.mer-status-gray   { color: var(--mer-text-dim); }

.mer-status-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: 0.375rem;
}

.mer-status-dot.mer-dot-green  { background: var(--mer-success); }
.mer-status-dot.mer-dot-amber  { background: var(--mer-warning); }
.mer-status-dot.mer-dot-gray   { background: var(--mer-text-dim); }

.mer-tab-empty {
  color: var(--mer-text-muted);
  text-align: center;
  padding: 3rem 1rem;
  font-size: 0.9375rem;
}

.mer-tab-empty-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  opacity: 0.4;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .mer-main { padding: 1.5rem 1rem 3rem; }
  .mer-landing-tiles { grid-template-columns: 1fr; }
  .mer-home-grid { grid-template-columns: 1fr; }
  .mer-admin-stats { grid-template-columns: 1fr 1fr; }
  .mer-key { height: 4.5rem; }
}