/* ============================================
   Pull vs Push ROI Calculator — BrokerBot
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --color-primary: #9d248c;
  --color-primary-light: #af3e9f;
  --color-primary-dark: #7a1b6d;
  --color-accent: #fc0b7f;
  --color-accent-light: #fd4a9e;
  --color-accent-dark: #d10967;
  --color-primary-surface: #2e1a2b;

  --color-bg: #F5F1F4;
  --color-surface: #FFFFFF;
  --color-text: #1A1A2E;
  --color-text-secondary: #5A6577;
  --color-text-muted: #8896A6;
  --color-border: #DDE3EB;
  --color-border-light: #EEF1F5;

  --color-pull: #9d248c;
  --color-pull-bg: rgba(157, 36, 140, 0.08);
  --color-push: #fc0b7f;
  --color-push-bg: rgba(252, 11, 127, 0.08);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --shadow-card: 0 2px 8px rgba(157,36,140,0.06), 0 0 0 1px rgba(157,36,140,0.04);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;

  --max-width: 780px;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--color-primary); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* --- Header --- */
.calc-header {
  background: linear-gradient(160deg, #2e1a2b 0%, #4a1545 40%, #7a1b6d 100%);
  color: #fff;
  padding: 2rem 1.5rem 2.5rem;
  text-align: center;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo-area {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.logo-icon {
  flex-shrink: 0;
  border-radius: 10px;
}

.logo-text {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  opacity: 0.95;
}

.calc-header h1 {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.calc-header .accent {
  color: #fd6aaf;
}

.calc-header .subtitle {
  font-size: 1rem;
  opacity: 0.8;
  font-weight: 400;
}

/* --- Progress Bar --- */
.progress-bar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border-light);
  padding: 1.25rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.progress-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
}

.progress-steps {
  list-style: none;
  display: flex;
  justify-content: space-between;
  position: relative;
  z-index: 2;
}

.progress-track {
  position: absolute;
  top: 16px;
  left: 40px;
  right: 40px;
  height: 3px;
  background: var(--color-border);
  border-radius: 2px;
  z-index: 1;
}

.progress-fill {
  height: 100%;
  background: var(--color-accent);
  border-radius: 2px;
  transition: width var(--transition-slow);
  width: 0%;
}

.progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  flex: 1;
}

.step-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  border: 3px solid var(--color-surface);
  box-shadow: 0 0 0 2px var(--color-border);
}

.progress-step.active .step-dot {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 0 0 2px var(--color-primary);
}

.progress-step.completed .step-dot {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 0 0 2px var(--color-accent);
}

.step-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-align: center;
  transition: color var(--transition-normal);
}

.progress-step.active .step-label {
  color: var(--color-primary);
}

.progress-step.completed .step-label {
  color: var(--color-accent);
}

/* --- Calculator Container --- */
.calculator-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

/* --- Step Sections --- */
.step {
  display: none;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.step.active {
  display: block;
}

.step.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Step Card --- */
.step-card {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: 2rem;
  position: relative;
}

.step-card-results {
  background: transparent;
  box-shadow: none;
  padding: 0;
}

.step-header {
  margin-bottom: 2rem;
}

.step-badge {
  display: inline-block;
  background: var(--color-pull-bg);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  margin-bottom: 0.75rem;
}

.step-badge-results {
  background: var(--color-push-bg);
  color: var(--color-accent);
}

.step-header h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary-dark);
  margin-bottom: 0.35rem;
}

.step-description {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

/* --- Input Groups --- */
.inputs-grid {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.input-group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* --- Tooltip --- */
.tooltip-trigger {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1.5px solid var(--color-text-muted);
  background: transparent;
  color: var(--color-text-muted);
  font-size: 0.65rem;
  font-weight: 700;
  cursor: help;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  position: relative;
  flex-shrink: 0;
}

.tooltip-trigger:hover,
.tooltip-trigger:focus {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  outline: none;
}

.tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--color-primary-dark);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 400;
  line-height: 1.5;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-sm);
  width: 260px;
  z-index: 200;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  box-shadow: var(--shadow-lg);
}

.tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--color-primary-dark);
}

.tooltip.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* --- Sliders --- */
.slider-row {
  display: flex;
  align-items: center;
  gap: 1rem;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  outline: none;
  cursor: pointer;
  background: linear-gradient(
    to right,
    var(--color-primary) 0%,
    var(--color-primary) var(--progress, 20%),
    var(--color-border) var(--progress, 20%),
    var(--color-border) 100%
  );
  transition: background var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 2px 8px rgba(157,36,140,0.3);
}

input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
  cursor: pointer;
}

input[type="range"]::-moz-range-track {
  height: 6px;
  border-radius: 3px;
  background: var(--color-border);
}

input[type="range"]::-moz-range-progress {
  height: 6px;
  border-radius: 3px;
  background: var(--color-primary);
}

.slider-value {
  min-width: 75px;
  text-align: right;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

/* --- Selects --- */
select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  padding: 0.7rem 2.5rem 0.7rem 0.9rem;
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%235A6577' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
}

select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(157,36,140,0.12);
}

/* --- Custom Revenue Input --- */
.custom-revenue-group {
  margin-top: 0.5rem;
}

.custom-input-wrapper {
  display: flex;
  align-items: center;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.custom-input-wrapper:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(157,36,140,0.12);
}

.input-prefix {
  padding: 0.7rem 0 0.7rem 0.9rem;
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
}

.custom-input-wrapper input {
  flex: 1;
  border: none;
  padding: 0.7rem 0.9rem 0.7rem 0.25rem;
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  outline: none;
  background: transparent;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 2px 6px rgba(157,36,140,0.25);
}

.btn-primary:hover {
  background: var(--color-primary-light);
  box-shadow: 0 4px 12px rgba(157,36,140,0.3);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1.5px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-bg);
  color: var(--color-text);
  border-color: var(--color-text-muted);
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 2px 6px rgba(252,11,127,0.25);
  width: 100%;
  justify-content: center;
  padding: 0.9rem 1.6rem;
  font-size: 1rem;
}

.btn-accent:hover {
  background: var(--color-accent-light);
  box-shadow: 0 4px 12px rgba(252,11,127,0.3);
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

/* --- Step Actions --- */
.step-actions {
  margin-top: 2rem;
  display: flex;
  justify-content: flex-end;
}

.step-actions-split {
  justify-content: space-between;
}

/* --- Results Grid --- */
.results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

.metric-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  border-top: 3px solid transparent;
}

.pull-card {
  border-top-color: var(--color-pull);
}

.push-card {
  border-top-color: var(--color-push);
}

.card-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
}

.card-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.pull-dot { background: var(--color-pull); }
.push-dot { background: var(--color-push); }

.metrics-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.metric-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border-light);
}

.metric-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.metric-row dt {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.metric-row dd {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}

.metric-row-highlight dd {
  font-size: 1.25rem;
}

.pull-card .metric-row-highlight dd {
  color: var(--color-pull);
}

.push-card .metric-row-highlight dd {
  color: var(--color-push);
}

/* --- Charts --- */
.chart-section {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  margin-bottom: 2rem;
}

.chart-section h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 0.25rem;
}

.chart-description {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.chart-container {
  position: relative;
  height: 220px;
}

.chart-container-wide {
  height: 280px;
}

/* --- Opportunity Gap --- */
.opportunity-gap {
  background: linear-gradient(160deg, #2e1a2b 0%, #4a1545 40%, #7a1b6d 100%);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  color: #fff;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

.opportunity-gap::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(252,11,127,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.gap-inner {
  position: relative;
  z-index: 1;
}

.opportunity-gap h3 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.8;
  margin-bottom: 0.5rem;
}

.gap-value {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 0.35rem;
  color: #fd6aaf;
}

.gap-description {
  font-size: 0.9rem;
  opacity: 0.75;
}

/* --- Lead Capture --- */
.lead-capture {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  margin-bottom: 2rem;
  overflow: hidden;
}

.lead-capture-inner {
  padding: 2rem;
  text-align: center;
}

.lead-capture h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 0.5rem;
}

.lead-capture > p,
.lead-capture-inner > p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.lead-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.75rem;
}

.form-row-2col {
  grid-template-columns: 1fr 1fr;
}

.form-field input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  background: var(--color-surface);
}

.form-field input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(157,36,140,0.12);
}

.form-field input::placeholder {
  color: var(--color-text-muted);
}

.form-error {
  color: #D32F2F;
  font-size: 0.85rem;
  font-weight: 500;
  margin-top: 0.25rem;
}

.form-success {
  padding: 1.5rem;
  text-align: center;
}

.form-success h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.form-success p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

.btn-booking {
  display: inline-flex;
  width: auto;
  padding: 0.85rem 2rem;
}

/* --- Footer --- */
.calc-footer {
  text-align: center;
  padding: 2rem 1.5rem;
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

.calc-footer a {
  color: var(--color-text-secondary);
  text-decoration: none;
}

.calc-footer a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* ========================
   Responsive
   ======================== */

@media (max-width: 640px) {
  .calc-header {
    padding: 1.5rem 1rem 2rem;
  }

  .calc-header h1 {
    font-size: 1.35rem;
  }

  .progress-bar {
    padding: 1rem;
  }

  .step-label {
    font-size: 0.65rem;
  }

  .step-dot {
    width: 28px;
    height: 28px;
    font-size: 0.7rem;
  }

  .progress-track {
    left: 30px;
    right: 30px;
    top: 14px;
  }

  .calculator-container {
    padding: 1.25rem 1rem 2rem;
  }

  .step-card {
    padding: 1.5rem 1.25rem;
    border-radius: var(--radius-lg);
  }

  .step-header h2 {
    font-size: 1.25rem;
  }

  .results-grid {
    grid-template-columns: 1fr;
  }

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

  .gap-value {
    font-size: 2rem;
  }

  .chart-container {
    height: 200px;
  }

  .chart-container-wide {
    height: 240px;
  }

  .slider-value {
    min-width: 60px;
    font-size: 0.95rem;
  }

  .step-actions-split {
    flex-direction: column-reverse;
    gap: 0.75rem;
  }

  .step-actions-split .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (min-width: 641px) and (max-width: 768px) {
  .form-row:not(.form-row-2col) {
    grid-template-columns: 1fr 1fr;
  }

  .form-row:not(.form-row-2col) .form-field:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1024px) {
  .calc-header {
    padding: 2.5rem 2rem 3rem;
  }

  .calc-header h1 {
    font-size: 2rem;
  }

  .step-card {
    padding: 2.5rem;
  }

  .chart-container {
    height: 260px;
  }

  .chart-container-wide {
    height: 320px;
  }
}