/* ROI Calculator styles */

#calculator-section {
  padding: var(--space-24) 0;
  background: linear-gradient(to bottom, #fff, rgba(0,0,0,.02));
}

.calc-wrap {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.calc-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.calc-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.calc-subtitle {
  font-size: 1.125rem;
  color: rgba(0,0,0,.6);
  max-width: 40rem;
  margin: 0 auto;
}

/* Card */
.calc-card {
  background: #fff;
  border: 1px solid rgba(0,0,0,.1);
  border-radius: 1.5rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  box-shadow: 0 20px 60px rgba(0,0,0,.08);
}

/* Mode bar */
.calc-mode-bar {
  display: flex;
  justify-content: center;
  gap: .5rem;
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

.calc-mode-btn {
  padding: .5rem 1.5rem;
  border-radius: .75rem;
  font-size: .875rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  background: rgba(0,0,0,.05);
  color: rgba(0,0,0,.6);
  transition: background var(--transition-base), color var(--transition-base);
}

.calc-mode-btn:hover  { background: rgba(0,0,0,.1); }
.calc-mode-btn.is-active { background: #000; color: #fff; }

/* Mode wrap — hover tooltip on the whole tab */
.calc-mode-wrap {
  position: relative;
  display: inline-flex;
}
.calc-mode-tip {
  display: none;
  position: absolute;
  top: calc(100% + .5rem);
  left: 50%;
  transform: translateX(-50%);
  width: 16rem;
  background: #000;
  color: #fff;
  font-size: .75rem;
  line-height: 1.5;
  border-radius: .5rem;
  padding: .625rem .75rem;
  pointer-events: none;
  z-index: 100;
  white-space: normal;
  text-align: left;
}
.calc-mode-wrap:hover .calc-mode-tip { display: block; }

/* Section */
.calc-section { margin-bottom: var(--space-8); }

.calc-section-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--space-6);
}

/* Grid */
.calc-grid         { display: grid; gap: 1.5rem; }
.calc-grid--2      { grid-template-columns: repeat(2, 1fr); }
.calc-grid--3      { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 640px) {
  .calc-wrap { padding: 0; }
  .calc-grid--2,
  .calc-grid--3 { grid-template-columns: 1fr; }
  .calc-report-row { flex-direction: column; }
}

/* Field */
.calc-field { display: flex; flex-direction: column; gap: .5rem; }

.calc-field__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
}

.calc-field__label {
  font-size: .875rem;
  font-weight: 500;
  color: rgba(0,0,0,.6);
}

.calc-field__value {
  font-size: .875rem;
  font-weight: 700;
  white-space: nowrap;
}

/* Slider */
.calc-slider-track {
  position: relative;
  height: 2rem;
  display: flex;
  align-items: center;
}

.calc-slider-fill {
  position: absolute;
  left: 0;
  height: .5rem;
  background: #000;
  border-radius: 999px;
  pointer-events: none;
  transition: width .1s;
}

.calc-slider {
  position: relative;
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: .5rem;
  background: rgba(0,0,0,.1);
  border-radius: 999px;
  outline: none;
  cursor: pointer;
}

.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background: #000;
  border: 2px solid #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,.25);
  cursor: pointer;
  position: relative;
  z-index: 1;
}

.calc-slider::-moz-range-thumb {
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background: #000;
  border: 2px solid #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,.25);
  cursor: pointer;
}

/* Number input */
.calc-number-input {
  width: 100%;
  padding: .5rem .75rem;
  border: 1px solid rgba(0,0,0,.12);
  border-radius: .5rem;
  font-size: .9375rem;
  outline: none;
  transition: border-color var(--transition-base);
}

.calc-number-input:focus { border-color: #000; }

/* Advanced toggle */
.calc-adv-toggle {
  display: flex;
  align-items: center;
  gap: .5rem;
  background: none;
  border: none;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  padding: .5rem 0;
  color: #000;
  transition: color var(--transition-base);
}

.calc-adv-toggle:hover { color: rgba(0,0,0,.6); }

.calc-adv-icon {
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background: rgba(0,0,0,.08);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .875rem;
  line-height: 1;
}

/* Advanced panel */
.calc-adv-panel { margin-top: var(--space-4); }
.calc-adv-panel.is-hidden { display: none; }

.calc-adv-label {
  font-size: .9375rem;
  font-weight: 600;
  color: rgba(0,0,0,.7);
  margin-bottom: var(--space-3);
  margin-top: var(--space-6);
}

/* Module checkboxes */
.calc-mod-label {
  display: flex;
  align-items: center;
  gap: .625rem;
  padding: .875rem 1rem;
  border: 1px solid rgba(0,0,0,.1);
  border-radius: .75rem;
  cursor: pointer;
  font-size: .9375rem;
  font-weight: 500;
  transition: background var(--transition-base);
  position: relative;
}

.calc-mod-label:hover { background: rgba(0,0,0,.04); }

.calc-mod-cb {
  width: 1.125rem;
  height: 1.125rem;
  flex-shrink: 0;
  cursor: pointer;
  accent-color: #000;
}

/* Tooltip */
.calc-tooltip-wrap {
  position: relative;
  margin-left: auto;
  flex-shrink: 0;
}

.calc-info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.125rem;
  height: 1.125rem;
  border-radius: 50%;
  background: rgba(0,0,0,.12);
  font-size: .6875rem;
  font-weight: 700;
  cursor: help;
  color: rgba(0,0,0,.6);
  user-select: none;
}

.calc-tooltip-box {
  display: none;
  position: absolute;
  bottom: calc(100% + .5rem);
  right: 0;
  width: 16rem;
  background: #000;
  color: #fff;
  font-size: .75rem;
  line-height: 1.5;
  padding: .625rem .875rem;
  border-radius: .625rem;
  box-shadow: 0 8px 24px rgba(0,0,0,.3);
  z-index: 50;
  pointer-events: none;
}

.calc-tooltip-wrap:hover .calc-tooltip-box,
.calc-tooltip-wrap:focus-within .calc-tooltip-box { display: block; }

/* Params panel */
.calc-params-inner {
  background: rgba(0,0,0,.04);
  border-radius: 1rem;
  padding: 1.25rem;
  margin-top: var(--space-4);
}

.calc-param-group { margin-top: var(--space-6); }
.calc-param-group:first-child { margin-top: 0; }

.calc-param-title {
  font-size: .875rem;
  font-weight: 600;
  margin-bottom: var(--space-3);
}

/* Results */
.calc-results { margin-top: var(--space-8); }

.calc-confidence {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  padding: .875rem 1rem;
  border-radius: .875rem;
  border: 1px solid;
  margin-bottom: var(--space-5);
  font-size: .875rem;
}

.calc-confidence.is-high   { background: #f0fdf4; border-color: #86efac; }
.calc-confidence.is-medium { background: #fefce8; border-color: #fde047; }
.calc-confidence.is-low    { background: #fef2f2; border-color: #fca5a5; }

.calc-conf-label { font-weight: 700; white-space: nowrap; }
.calc-confidence.is-high   .calc-conf-label { color: #15803d; }
.calc-confidence.is-medium .calc-conf-label { color: #92400e; }
.calc-confidence.is-low    .calc-conf-label { color: #b91c1c; }

.calc-conf-reasons { color: rgba(0,0,0,.6); }

/* Result card */
.calc-result-card {
  background: linear-gradient(135deg, #000 0%, #1a1a1a 100%);
  border-radius: 1.25rem;
  padding: 2rem;
  color: #fff;
}

.calc-result-headline { text-align: center; margin-bottom: 1.25rem; }

.calc-result-label {
  font-size: .875rem;
  color: rgba(255,255,255,.6);
  margin-bottom: .5rem;
}

.calc-result-number {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
}

.calc-result-meta {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  font-size: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.calc-meta-label { color: rgba(255,255,255,.6); }

.calc-meta-value { font-weight: 600; }

.calc-meta-note {
  font-size: .6875rem;
  color: rgba(255,255,255,.4);
  margin-top: .2rem;
}

.calc-module-breakdown { margin-top: 1rem; }

.calc-breakdown-title {
  font-size: .9375rem;
  font-weight: 600;
  color: rgba(255,255,255,.8);
  margin-bottom: 1rem;
}

.calc-breakdown-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .5rem 0;
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: .9375rem;
  color: rgba(255,255,255,.8);
}

.calc-breakdown-row small { color: rgba(255,255,255,.4); font-size: .75rem; }

/* Report form */
.calc-report-form { margin-top: 1.5rem; }

.calc-report-inner {
  background: linear-gradient(135deg, #0057b8, #003c8a);
  border-radius: 1.25rem;
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.calc-report-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,.04);
  border-radius: inherit;
  pointer-events: none;
}

.calc-report-title {
  color: #fff;
  font-size: 1.375rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: .5rem;
}

.calc-report-sub {
  color: rgba(255,255,255,.75);
  font-size: .875rem;
  text-align: center;
  margin-bottom: 1.25rem;
}

.calc-report-row {
  display: flex;
  gap: .75rem;
  max-width: 36rem;
  margin: 0 auto;
}

@media (max-width: 480px) {
  .calc-confidence { display: flex; flex-direction: column; }
  .calc-result-card { padding: 1.25rem; }
  .calc-breakdown-row { flex-direction: column; align-items: flex-start; gap: .15rem; }
  .calc-result-meta { gap: 1.25rem; }
  .calc-result-number { font-size: clamp(1.375rem, 7vw, 1.875rem); word-break: break-word; }
}

.calc-email-input {
  flex: 1;
  padding: .875rem 1.25rem;
  border: 2px solid rgba(255,255,255,.2);
  border-radius: .75rem;
  background: rgba(255,255,255,.12);
  color: #fff;
  font-size: 1rem;
  outline: none;
  transition: border-color var(--transition-base), background var(--transition-base);
}

.calc-email-input::placeholder { color: rgba(255,255,255,.5); }

.calc-email-input:focus {
  border-color: rgba(255,255,255,.6);
  background: rgba(255,255,255,.2);
}

.calc-report-btn {
  padding: .875rem 1.75rem;
  background: #fff;
  color: #0057b8;
  font-weight: 700;
  font-size: 1rem;
  border: none;
  border-radius: .75rem;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition-base), transform var(--transition-base);
}

.calc-report-btn:hover:not(:disabled) { background: rgba(255,255,255,.92); transform: scale(1.03); }
.calc-report-btn:disabled { opacity: .5; cursor: not-allowed; }

/* Status messages */
.calc-status {
  margin-top: 1rem;
  padding: .75rem 1rem;
  border-radius: .625rem;
  text-align: center;
  font-weight: 600;
  color: #fff;
  font-size: .9375rem;
}

.calc-status--success { background: rgba(34,197,94,.25); border: 1px solid rgba(34,197,94,.35); }
.calc-status--error   { background: rgba(239,68,68,.25); border: 1px solid rgba(239,68,68,.35); }

/* Disclaimer */
.calc-disclaimer {
  font-size: .8125rem;
  color: rgba(0,0,0,.45);
  text-align: center;
  max-width: 48rem;
  margin: 1.5rem auto 0;
  line-height: 1.6;
}