/* ================================================================
   OVERTIME CALCULATOR — v3.2.0
   Premium French Overtime Calculator
   ================================================================ */

/* ── Design Tokens ───────────────────────────────────────────────── */
:root {
  --ot-primary:        #6366f1;
  --ot-primary-dark:   #4f46e5;
  --ot-primary-glow:   rgba(99, 102, 241, 0.12);
  --ot-primary-light:  rgba(99, 102, 241, 0.08);
  --ot-success:        #10b981;
  --ot-success-glow:   rgba(16, 185, 129, 0.12);
  --ot-warning:        #f59e0b;
  --ot-danger:         #ef4444;
  --ot-danger-glow:    rgba(239, 68, 68, 0.12);

  --ot-bg-page:        #f1f5f9;
  --ot-bg-app:         rgba(255, 255, 255, 0.96);
  --ot-bg-card:        #ffffff;
  --ot-bg-input:       #ffffff;
  --ot-bg-muted:       #f8fafc;
  --ot-bg-muted2:      #f1f5f9;

  --ot-border:         #e2e8f0;
  --ot-border-focus:   var(--ot-primary);
  --ot-border-error:   var(--ot-danger);

  --ot-text:           #0f172a;
  --ot-text-muted:     #64748b;
  --ot-text-subtle:    #94a3b8;

  --ot-glass-border:   rgba(255, 255, 255, 0.7);
  --ot-shadow-sm:      0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --ot-shadow:         0 4px 16px rgba(0,0,0,0.07), 0 1px 4px rgba(0,0,0,0.05);
  --ot-shadow-lg:      0 10px 30px rgba(0,0,0,0.09), 0 2px 8px rgba(0,0,0,0.06);
  --ot-shadow-xl:      0 20px 40px rgba(0,0,0,0.11), 0 4px 12px rgba(0,0,0,0.07);

  --ot-radius-sm:      8px;
  --ot-radius:         14px;
  --ot-radius-lg:      20px;
  --ot-radius-xl:      26px;

  --ot-transition:     0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --ot-font:           "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ot-primary:       #818cf8;
    --ot-primary-dark:  #6366f1;
    --ot-primary-glow:  rgba(129, 140, 248, 0.18);
    --ot-primary-light: rgba(129, 140, 248, 0.1);
    --ot-success:       #34d399;
    --ot-success-glow:  rgba(52, 211, 153, 0.18);
    --ot-warning:       #fbbf24;
    --ot-danger:        #f87171;
    --ot-danger-glow:   rgba(248, 113, 113, 0.18);

    --ot-bg-page:       #0f172a;
    --ot-bg-app:        rgba(15, 23, 42, 0.97);
    --ot-bg-card:       #1e293b;
    --ot-bg-input:      #1e293b;
    --ot-bg-muted:      #1e293b;
    --ot-bg-muted2:     #0f172a;

    --ot-border:        rgba(255, 255, 255, 0.08);
    --ot-text:          #f1f5f9;
    --ot-text-muted:    #94a3b8;
    --ot-text-subtle:   #64748b;
    --ot-glass-border:  rgba(255, 255, 255, 0.06);
  }
}

/* ── Reset ───────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

/* ── App Shell ───────────────────────────────────────────────────── */
.premium-calculator-app {
  width: 100%;
  max-width: 920px;
  margin: 36px auto;
  padding: 0 16px;
  font-family: var(--ot-font);
  color: var(--ot-text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.app-wrapper {
  background: var(--ot-bg-app);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--ot-glass-border);
  border-radius: var(--ot-radius-xl);
  padding: 36px 32px;
  box-shadow: var(--ot-shadow-xl);
  position: relative;
}

/* ── Header ──────────────────────────────────────────────────────── */
.overtime-calculator .app-header {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  text-align: center !important;
  padding-bottom: 28px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--ot-border);
  position: relative;
  width: 100%;
}

.overtime-calculator .app-header-icon {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--ot-primary-light) 0%, var(--ot-primary-glow) 100%);
  border: 1.5px solid rgba(99, 102, 241, 0.2);
  border-radius: 18px;
  margin: 0 auto 12px !important;
  color: var(--ot-primary);
  flex-shrink: 0;
}

.overtime-calculator .app-header-icon svg {
  width: 36px;
  height: 36px;
}

.overtime-calculator .app-title {
  margin: 0 0 6px;
  font-size: clamp(20px, 4vw, 26px);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: #0a558c !important;
  line-height: 1.2;
  text-align: center !important;
  width: 100%;
  width: 100%;
  padding: 0 70px; /* account for lang-switcher space on desktop */
}

.overtime-calculator .app-subtitle {
  margin: 0;
  font-size: clamp(13px, 2.5vw, 14.5px);
  color: var(--ot-text-muted);
  max-width: 560px;
  margin-inline: auto;
  line-height: 1.6;
}

/* ── Cards — Unified System ──────────────────────────────────────── */
.card {
  border: 1px solid var(--ot-border);
  border-radius: var(--ot-radius);
  background: var(--ot-bg-card);
  margin-bottom: 20px;
  overflow: hidden;
  box-shadow: var(--ot-shadow);
  transition: box-shadow var(--ot-transition), transform var(--ot-transition);
}

.card:hover {
  box-shadow: var(--ot-shadow-lg);
  transform: translateY(-1px);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: linear-gradient(135deg, var(--ot-bg-muted) 0%, var(--ot-bg-muted2) 100%);
  border-bottom: 1px solid var(--ot-border);
}

@media (prefers-color-scheme: dark) {
  .card-header {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  }
}

.card-title {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--ot-text);
  display: flex;
  align-items: center;
  gap: 7px;
}

.card-title svg { flex-shrink: 0; opacity: 0.75; }

.card-body { padding: 20px; }

/* ── Segment Control ─────────────────────────────────────────────── */
.segment-control {
  display: flex;
  background: var(--ot-bg-muted);
  border: 1px solid var(--ot-border);
  padding: 4px;
  border-radius: var(--ot-radius-sm);
  margin-bottom: 20px;
  gap: 4px;
}

@media (prefers-color-scheme: dark) {
  .segment-control { background: #0f172a; }
}

.segment-btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: none;
  background: transparent;
  padding: 9px 16px;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--ot-font);
  color: var(--ot-text-muted);
  border-radius: calc(var(--ot-radius-sm) - 2px);
  cursor: pointer;
  transition: all var(--ot-transition);
  min-height: 40px;
  white-space: nowrap;
}

.segment-btn:hover { color: var(--ot-text); }

.segment-btn.active {
  background: var(--ot-bg-card);
  color: var(--ot-primary);
  box-shadow: var(--ot-shadow-sm);
}

.segment-btn:focus-visible {
  outline: 2px solid var(--ot-primary);
  outline-offset: 2px;
}

/* ── Form System ─────────────────────────────────────────────────── */
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

.form-row-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ot-text);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.form-label-optional {
  font-size: 10px;
  font-weight: 600;
  color: var(--ot-text-subtle);
  background: var(--ot-bg-muted2);
  padding: 1px 7px;
  border-radius: 4px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.form-input,
.form-select {
  width: 100%;
  padding: 11px 14px;
  border-radius: var(--ot-radius-sm);
  border: 1.5px solid var(--ot-border);
  background: var(--ot-bg-input);
  font-size: 14px;
  font-family: var(--ot-font);
  color: var(--ot-text);
  outline: none;
  transition: border-color var(--ot-transition), box-shadow var(--ot-transition);
  min-height: 44px;
  -webkit-appearance: none;
}

.form-input::placeholder { color: var(--ot-text-subtle); }

.form-input:hover,
.form-select:hover { border-color: var(--ot-primary); }

.form-input:focus,
.form-select:focus {
  border-color: var(--ot-primary);
  box-shadow: 0 0 0 3px var(--ot-primary-glow);
}

.form-input:focus-visible,
.form-select:focus-visible {
  outline: 2px solid var(--ot-primary);
  outline-offset: 1px;
}

.form-input.input-error {
  border-color: var(--ot-danger);
  box-shadow: 0 0 0 3px var(--ot-danger-glow);
}

.form-hint {
  font-size: 11.5px;
  color: var(--ot-text-subtle);
  line-height: 1.4;
}

.field-error {
  font-size: 11.5px;
  color: var(--ot-danger);
  font-weight: 500;
  min-height: 16px;
  display: block;
  line-height: 1.4;
}

/* ── Mode Info Boxes ─────────────────────────────────────────────── */
.mode-info-box {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--ot-radius-sm);
  margin-top: 16px;
  border: 1.5px solid transparent;
  animation: fadeSlideIn 0.22s ease both;
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.mode-info-legal {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
  border-color: #86efac;
  color: #14532d;
}

@media (prefers-color-scheme: dark) {
  .mode-info-legal {
    background: linear-gradient(135deg, rgba(20,83,45,0.22) 0%, rgba(22,101,52,0.18) 100%);
    border-color: rgba(134, 239, 172, 0.25);
    color: #86efac;
  }
}

.mode-info-custom {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border-color: #93c5fd;
  color: #1e3a8a;
}

@media (prefers-color-scheme: dark) {
  .mode-info-custom {
    background: linear-gradient(135deg, rgba(30,58,138,0.22) 0%, rgba(29,78,216,0.18) 100%);
    border-color: rgba(147, 197, 253, 0.25);
    color: #93c5fd;
  }
}

.mode-info-icon {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.mode-info-content strong {
  display: block;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 6px;
}

.mode-info-rules {
  margin: 0;
  padding-left: 16px;
  font-size: 12.5px;
  line-height: 1.9;
  list-style: disc;
}

.mode-info-note {
  margin: 4px 0 0;
  font-size: 12.5px;
  opacity: 0.85;
  line-height: 1.5;
}

/* ── Advanced Settings Toggle ────────────────────────────────────── */
.advanced-settings-toggle { margin-top: 18px; }

.btn-advanced-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 10px 14px;
  background: transparent;
  border: 1.5px dashed var(--ot-border);
  border-radius: var(--ot-radius-sm);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--ot-font);
  color: var(--ot-text-muted);
  cursor: pointer;
  transition: all var(--ot-transition);
  text-align: left;
  min-height: 44px;
}

.btn-advanced-toggle:hover {
  border-color: var(--ot-primary);
  color: var(--ot-primary);
  background: var(--ot-primary-light);
  border-style: solid;
}

.btn-advanced-toggle.is-open {
  border-color: var(--ot-primary);
  border-style: solid;
  color: var(--ot-primary);
  background: var(--ot-primary-light);
}

.btn-advanced-toggle:focus-visible {
  outline: 2px solid var(--ot-primary);
  outline-offset: 2px;
}

.advanced-toggle-chevron {
  margin-left: auto;
  transition: transform 0.22s ease;
  flex-shrink: 0;
}

.btn-advanced-toggle.is-open .advanced-toggle-chevron {
  transform: rotate(90deg);
}

/* ── Advanced Settings Panel ─────────────────────────────────────── */
.advanced-settings-panel {
  margin-top: 10px;
  animation: fadeSlideIn 0.2s ease both;
}

.advanced-settings-inner {
  padding: 18px;
  background: var(--ot-bg-muted);
  border: 1px solid var(--ot-border);
  border-radius: var(--ot-radius-sm);
}

/* ── Contract Presets ────────────────────────────────────────────── */
.contract-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 7px;
}

.preset-btn {
  padding: 8px 16px;
  border-radius: var(--ot-radius-sm);
  border: 1.5px solid var(--ot-border);
  background: var(--ot-bg-card);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--ot-font);
  color: var(--ot-text-muted);
  cursor: pointer;
  transition: all 0.18s ease;
  min-width: 54px;
  min-height: 40px;
  text-align: center;
}

.preset-btn:hover {
  border-color: var(--ot-primary);
  color: var(--ot-primary);
  background: var(--ot-primary-light);
  transform: translateY(-1px);
}

.preset-btn.active {
  background: var(--ot-primary);
  border-color: var(--ot-primary-dark);
  color: #ffffff;
  box-shadow: 0 3px 8px rgba(99, 102, 241, 0.3);
}

.preset-btn-custom { border-style: dashed; }
.preset-btn-custom.active { border-style: solid; }

.preset-btn:focus-visible {
  outline: 2px solid var(--ot-primary);
  outline-offset: 2px;
}

.custom-hours-input { max-width: 220px; }

/* ── Timesheet Grid ──────────────────────────────────────────────── */
.timesheet-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  margin-bottom: 4px;
}

.timesheet-day {
  background: var(--ot-bg-muted);
  border: 1.5px solid var(--ot-border);
  border-radius: var(--ot-radius-sm);
  padding: 10px 6px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 7px;
  transition: border-color var(--ot-transition);
}

.timesheet-day:focus-within {
  border-color: var(--ot-primary);
  background: var(--ot-primary-light);
}

.day-name {
  font-size: 11px;
  font-weight: 700;
  color: var(--ot-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.day-input {
  text-align: center;
  padding: 7px 4px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
  min-height: 38px;
}

/* ── Buttons ─────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 10px 18px;
  border-radius: var(--ot-radius-sm);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--ot-font);
  cursor: pointer;
  transition: all var(--ot-transition);
  border: 1.5px solid transparent;
  text-decoration: none;
  min-height: 42px;
  white-space: nowrap;
}

.btn-secondary {
  background: var(--ot-bg-card);
  color: var(--ot-text-muted);
  border-color: var(--ot-border);
  box-shadow: var(--ot-shadow-sm);
}

.btn-secondary:hover {
  background: var(--ot-bg-muted);
  color: var(--ot-text);
  border-color: #cbd5e1;
  transform: translateY(-1px);
  box-shadow: var(--ot-shadow);
}

@media (prefers-color-scheme: dark) {
  .btn-secondary:hover {
    background: #0f172a;
    border-color: #475569;
  }
}

.btn-reset:hover {
  color: var(--ot-danger);
  border-color: var(--ot-danger);
  background: var(--ot-danger-glow);
}

.btn:focus-visible {
  outline: 2px solid var(--ot-primary);
  outline-offset: 2px;
}

/* ── Button Bar ──────────────────────────────────────────────────── */
.button-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
  align-items: center;
}

/* ── Results Section ─────────────────────────────────────────────── */
.results-section { margin-top: 4px; }

.results-section-header { margin-bottom: 16px; }

.results-section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 17px;
  font-weight: 800;
  color: var(--ot-text);
  letter-spacing: -0.015em;
}

.results-section-title svg { opacity: 0.7; }

/* Language Switcher */
.lang-switcher {
  position: absolute;
  top: 24px;
  right: 32px;
  display: inline-flex;
  background: var(--ot-bg-muted);
  border: 1px solid var(--ot-border);
  padding: 2px;
  border-radius: var(--ot-radius-sm);
  gap: 2px;
  z-index: 10;
}

@media (prefers-color-scheme: dark) {
  .lang-switcher { background: #0f172a; }
}

.lang-btn {
  border: none;
  background: transparent;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 700;
  font-family: var(--ot-font);
  color: var(--ot-text-muted);
  border-radius: calc(var(--ot-radius-sm) - 4px);
  cursor: pointer;
  transition: all var(--ot-transition);
  min-height: 24px;
}

.lang-btn:hover { color: var(--ot-text); }

.lang-btn.active {
  background: var(--ot-bg-card);
  color: var(--ot-primary);
  box-shadow: var(--ot-shadow-sm);
}

/* Stats Strip */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--ot-bg-card);
  border: 1px solid var(--ot-border);
  border-radius: var(--ot-radius);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  box-shadow: var(--ot-shadow);
  transition: box-shadow var(--ot-transition), transform var(--ot-transition);
}

.stat-card:hover {
  box-shadow: var(--ot-shadow-lg);
  transform: translateY(-1px);
}

.stat-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--ot-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-value {
  font-size: 20px;
  font-weight: 800;
  color: var(--ot-text);
  line-height: 1.2;
}

.stat-card--accent {
  background: linear-gradient(135deg, var(--ot-primary-light) 0%, rgba(99, 102, 241, 0.02) 100%);
  border-color: rgba(99, 102, 241, 0.25);
}

.stat-value.accent {
  color: var(--ot-primary);
  font-size: 24px;
}

/* Mid row: chart + salary */
.results-mid-row {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 16px;
  margin-bottom: 20px;
  align-items: stretch;
}

.results-mid-row.chart-only {
  grid-template-columns: 1fr;
}

.results-mid-row.chart-only .chart-card-body canvas {
  max-width: 200px;
  max-height: 200px;
}

.results-mid-row.chart-only .chart-legend {
  gap: 16px 24px;
}

.result-chart-card,
.result-salary-card {
  margin-bottom: 0;
}

.result-salary-card {
  display: flex;
  flex-direction: column;
}

.result-salary-card .card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
}

.chart-card-body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 210px;
  gap: 12px;
  padding: 20px 16px;
}

.chart-card-body canvas {
  max-width: 170px;
  max-height: 170px;
}

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  justify-content: center;
  font-size: 11px;
  color: var(--ot-text-muted);
  font-weight: 500;
}

.legend-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  vertical-align: middle;
  margin-right: 3px;
}

/* ── Result Rows ─────────────────────────────────────────────────── */
.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 11px 14px;
  border: 1px solid var(--ot-border);
  border-radius: var(--ot-radius-sm);
  background: var(--ot-bg-card);
  transition: border-color var(--ot-transition), background var(--ot-transition);
  margin-bottom: 8px;
}

.result-row:last-child { margin-bottom: 0; }

.result-row:hover { border-color: #cbd5e1; }

.result-row.highlight {
  background: linear-gradient(135deg, rgba(99,102,241,0.05) 0%, rgba(79,70,229,0.04) 100%);
  border-color: rgba(99, 102, 241, 0.25);
}

.result-row.success {
  background: linear-gradient(135deg, rgba(16,185,129,0.06) 0%, rgba(5,150,105,0.04) 100%);
  border-color: rgba(16, 185, 129, 0.28);
}

.result-label {
  font-size: 13px;
  color: var(--ot-text-muted);
  flex: 1;
  padding-right: 12px;
  line-height: 1.3;
}

.result-value {
  font-size: 15px;
  font-weight: 700;
  color: var(--ot-text);
  text-align: right;
  flex-shrink: 0;
}

.result-value.big  { font-size: 19px; color: var(--ot-primary); }
.result-value.green { font-size: 19px; color: var(--ot-success); }

/* ── Animated Value Update ───────────────────────────────────────── */
@keyframes valueFlash {
  0%   { opacity: 0.4; transform: scale(0.97); }
  50%  { opacity: 1;   transform: scale(1.02); }
  100% { opacity: 1;   transform: scale(1); }
}

.anim-value.value-updated {
  animation: valueFlash 0.28s ease-out both;
}

/* ── Salary Grid ─────────────────────────────────────────────────── */
.salary-grid { display: flex; flex-direction: column; }

/* ── Detailed Calculation ────────────────────────────────────────── */
.detailed-calc-empty {
  margin: 0;
  font-size: 13px;
  color: var(--ot-text-subtle);
  text-align: center;
  padding: 16px 0;
}

.calc-lines {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.calc-line {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--ot-radius-sm);
  border: 1px solid var(--ot-border);
  font-size: 13px;
  transition: background var(--ot-transition);
}

.calc-line--normal {
  background: rgba(99, 102, 241, 0.04);
  border-color: rgba(99, 102, 241, 0.18);
}

.calc-line--tier1 {
  background: rgba(245, 158, 11, 0.05);
  border-color: rgba(245, 158, 11, 0.22);
}

.calc-line--tier2 {
  background: rgba(239, 68, 68, 0.05);
  border-color: rgba(239, 68, 68, 0.22);
}

.calc-line--total {
  background: linear-gradient(135deg, rgba(16,185,129,0.07) 0%, rgba(5,150,105,0.05) 100%);
  border-color: rgba(16, 185, 129, 0.28);
  font-weight: 700;
}

.calc-line-label {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--ot-text-muted);
  min-width: 150px;
  flex-shrink: 0;
}

.calc-line-formula {
  flex: 1;
  color: var(--ot-text);
  font-family: "SFMono-Regular", "Consolas", "Liberation Mono", monospace;
  font-size: 12.5px;
}

.calc-line-result {
  font-size: 14px;
  font-weight: 700;
  color: var(--ot-primary);
  text-align: right;
  flex-shrink: 0;
}

.calc-line--total .calc-line-result {
  color: var(--ot-success);
  font-size: 16px;
}

/* ── Buttons (Unified with Salary) ───────────────────────────────── */
.button-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid transparent;
  text-decoration: none;
  min-height: 44px;
}

.btn-secondary {
  background: var(--ot-bg-card);
  color: var(--ot-text-muted);
  border-color: var(--ot-border);
  box-shadow: var(--ot-shadow-sm);
}

.btn-secondary svg {
  color: var(--ot-primary); /* Match the colorful vibe of salary calculator icons */
}

.btn-secondary.btn-reset svg {
  color: var(--ot-danger); /* Red icon for reset */
}

.btn-secondary:hover {
  background: #f8fafc;
  color: var(--ot-text);
  border-color: #cbd5e1;
  transform: translateY(-1px);
}

@media (prefers-color-scheme: dark) {
  .btn-secondary:hover {
    background: #0f172a;
    border-color: #475569;
  }
}

/* ── Toast System ────────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  pointer-events: none;
}

.toast {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 18px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--ot-font);
  box-shadow: 0 8px 24px rgba(0,0,0,0.22);
  animation: slideUp 0.28s ease-out;
  pointer-events: auto;
  max-width: min(360px, calc(100vw - 32px));
}

.toast--info    { background: #1e293b; color: #f1f5f9; }
.toast--success { background: #064e3b; color: #d1fae5; }
.toast--error   { background: #7f1d1d; color: #fee2e2; }

.toast-msg { flex: 1; }

.toast-close {
  background: none;
  border: none;
  color: currentColor;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  padding: 0;
  opacity: 0.7;
  flex-shrink: 0;
}
.toast-close:hover { opacity: 1; }

@keyframes slideUp {
  from { transform: translateY(16px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

/* ── Focus Visible (global) ──────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--ot-primary);
  outline-offset: 2px;
}

/* ── Mobile Responsiveness ───────────────────────────────────────── */
/* 768px */
@media (max-width: 768px) {
  .premium-calculator-app {
    padding: 0 10px;
    margin: 20px auto;
  }

  .app-wrapper {
    padding: 24px 18px;
    border-radius: var(--ot-radius-lg);
  }

  .results-mid-row {
    grid-template-columns: 1fr;
  }
  .stats-strip {
    grid-template-columns: 1fr 1fr;
  }
  .stat-card--accent {
    grid-column: span 2;
  }

  .chart-card-body { min-height: 180px; }

  .form-row-3 {
    grid-template-columns: 1fr 1fr;
  }
}

/* 480px */
@media (max-width: 480px) {
  .app-wrapper { padding: 18px 14px; border-radius: var(--ot-radius); }

  .app-header {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .lang-switcher {
    position: relative;
    top: 0;
    right: 0;
    margin-bottom: 16px;
    align-self: center;
  }

  .app-header-icon { width: 52px; height: 52px; border-radius: 14px; margin-top: 8px; }
  .app-header-icon svg { width: 28px; height: 28px; }
  .overtime-calculator .app-title { font-size: 18px; padding: 0 10px; }

  .stats-strip {
    grid-template-columns: 1fr;
  }
  .stat-card--accent {
    grid-column: span 1;
  }

  .segment-control { flex-direction: row; }
  .segment-btn { font-size: 12px; padding: 8px 10px; }

  .timesheet-grid { grid-template-columns: repeat(4, 1fr); }

  .form-row-3 { grid-template-columns: 1fr; }

  .button-bar { gap: 7px; }
  .btn { font-size: 12.5px; padding: 9px 13px; min-height: 40px; }

  .calc-line { flex-wrap: wrap; }
  .calc-line-label { min-width: 100%; margin-bottom: 2px; }

  .result-row { flex-wrap: wrap; gap: 4px; }
  .result-label { padding-right: 0; font-size: 12.5px; }
  .result-value { font-size: 14px; }
  .result-value.big, .result-value.green { font-size: 17px; }

  .contract-presets { gap: 6px; }
  .preset-btn { padding: 7px 12px; font-size: 12.5px; }
}

/* 360px */
@media (max-width: 360px) {
  .app-wrapper { padding: 14px 10px; }
  .timesheet-grid { grid-template-columns: repeat(2, 1fr); }
  .segment-btn { gap: 4px; padding: 7px 8px; }
  .button-bar { flex-direction: column; }
  .btn { width: 100%; }
}

/* ── Print ───────────────────────────────────────────────────────── */
@media print {
  body { background: #fff !important; color: #000 !important; font-size: 11pt; }

  .premium-calculator-app { margin: 0; padding: 0; max-width: 100%; }

  .app-wrapper {
    border: none !important;
    box-shadow: none !important;
    background: transparent !important;
    padding: 0;
  }

  .segment-control,
  .lang-switcher,
  .advanced-settings-toggle,
  .advanced-settings-panel,
  .mode-info-box,
  .button-bar,
  .toast-container,
  .chart-card-body,
  .result-chart-card { display: none !important; }

  .card {
    border: none !important;
    box-shadow: none !important;
    margin-bottom: 16px;
    page-break-inside: avoid;
  }

  .card-header {
    border-bottom: 2px solid #000 !important;
    background: transparent !important;
    padding: 6px 0 !important;
  }

  .card-title { color: #000 !important; font-size: 13pt !important; }
  .card-body  { padding: 8px 0 !important; }

  .results-mid-row { grid-template-columns: 1fr !important; }
  .stats-strip { grid-template-columns: 1fr 1fr 1fr !important; gap: 8px !important; }
  .stat-card { border: 1px solid #ddd !important; box-shadow: none !important; padding: 8px !important; background: transparent !important; }
  .stat-value, .stat-value.accent { color: #000 !important; font-size: 14pt !important; }

  .result-row {
    border: none !important;
    border-bottom: 1px solid #ddd !important;
    padding: 5px 0 !important;
    background: transparent !important;
  }

  .result-value,
  .result-value.big,
  .result-value.green { color: #000 !important; font-size: 12pt !important; }

  .calc-line { border: none !important; border-bottom: 1px solid #eee !important; border-radius: 0 !important; }
}