/*
 * ROI Calculator — demo-specific styles.
 *
 * Imports shared/styles/base.css for fonts, tokens, page wrapper, header,
 * card, and button components. Only demo-specific layout and components below.
 */
@import url("/styles/base.css");

/* ==========================================================================
   Layout
   ========================================================================== */

h1 {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  line-height: 1.1;
  color: #fff;
}

h1 .grad {
  color: var(--vz-green);
}

.lede {
  font-size: 17px;
  color: var(--vz-text-dim);
  max-width: 100%;
  margin-bottom: 36px;
}

.grid {
  display: grid;
  grid-template-columns: minmax(340px, 440px) 1fr;
  gap: 28px;
  align-items: start;
}

@media (max-width: 960px) {
  .grid { grid-template-columns: 1fr; }
}

/* ---- Input Fields ---- */

.field { margin-bottom: 18px; }

.field label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 13px;
  color: var(--vz-text);
  font-weight: 500;
  margin-bottom: 8px;
  gap: 10px;
}

.field label .lbl-text {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.field label .help {
  font-size: 11px;
  color: var(--vz-text-faint);
  font-weight: 400;
  max-width: 60%;
  text-align: right;
}

.field .input-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.field input[type="number"] {
  flex: 1;
  background: var(--vz-bg-deep);
  border: 1px solid var(--vz-border);
  border-radius: var(--vz-radius-sm);
  color: var(--vz-text);
  font-family: var(--vz-font-mono);
  font-size: 14px;
  padding: 11px 14px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.field input[type="number"]:focus {
  border-color: var(--vz-blue);
  box-shadow: 0 0 0 3px rgba(90, 184, 255, 0.15);
}

.field input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--vz-border-strong);
  border-radius: 2px;
  outline: none;
}

.field input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px; height: 18px;
  background: #fff;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.3);
  transition: transform 0.15s;
}

.field input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.15); }

.field input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px;
  background: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
}

.field .val {
  font-family: var(--vz-font-mono);
  font-size: 13px;
  color: var(--vz-text);
  min-width: 54px;
  text-align: right;
}

.field.pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.field.pair .f { display: flex; flex-direction: column; }
.field.pair label { margin-bottom: 6px; }

/* ---- Tooltips ---- */

.tip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 15px; height: 15px;
  border-radius: 50%;
  border: 1px solid var(--vz-border-strong);
  color: var(--vz-text-faint);
  font-size: 10px;
  font-weight: 600;
  cursor: help;
  position: relative;
  font-family: var(--vz-font-mono);
  line-height: 1;
  transition: all 0.15s;
}

.tip:hover { color: var(--vz-green); border-color: var(--vz-green); }

.tip::after {
  content: attr(data-tip);
  position: absolute;
  left: 22px; top: 50%;
  transform: translateY(-50%) translateX(6px);
  background: var(--vz-bg-deep);
  color: var(--vz-text);
  border: 1px solid var(--vz-border-strong);
  border-radius: var(--vz-radius-sm);
  padding: 10px 12px;
  font-family: var(--vz-font);
  font-size: 11.5px;
  font-weight: 400;
  line-height: 1.5;
  width: 240px;
  white-space: normal;
  text-align: left;
  opacity: 0; visibility: hidden;
  pointer-events: none;
  transition: opacity 0.15s, transform 0.15s;
  z-index: 9999;
  box-shadow: var(--vz-shadow-strong);
}

.tip:hover::after { opacity: 1; visibility: visible; transform: translateY(-50%) translateX(0); }

.tip::before {
  content: "";
  position: absolute;
  left: 16px; top: 50%;
  transform: translateY(-50%);
  width: 0; height: 0;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-right: 6px solid var(--vz-border-strong);
  opacity: 0; visibility: hidden;
  transition: opacity 0.15s;
}

.tip:hover::before { opacity: 1; visibility: visible; }

/* ---- Advanced toggle ---- */

details.advanced {
  margin-top: 10px;
  border-top: 1px dashed var(--vz-border);
  padding-top: 18px;
}

details.advanced summary {
  cursor: pointer;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--vz-text-dim);
  list-style: none;
  user-select: none;
  padding: 6px 0;
}

details.advanced summary::after { content: " +"; color: var(--vz-green); }
details.advanced[open] summary::after { content: " −"; }

/* ---- KPI Cards ---- */

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-bottom: 22px;
}

@media (max-width: 540px) { .kpi-grid { grid-template-columns: 1fr; } }

.kpi {
  position: relative;
  padding: 22px;
  overflow: visible;
  border: 1px solid var(--vz-border);
  border-radius: var(--vz-radius);
  background: linear-gradient(180deg, rgba(91, 191, 181, 0.04) 0%, transparent 100%);
  overflow: hidden;
}

.kpi.hero {
  grid-column: span 2;
  background: linear-gradient(135deg, rgba(91, 191, 181, 0.1) 0%, rgba(90, 184, 255, 0.06) 100%);
  border: 1px solid rgba(91, 191, 181, 0.2);
}

@media (max-width: 540px) { .kpi.hero { grid-column: span 1; } }

.kpi .lbl {
  font-size: 11px;
  color: var(--vz-text-dim);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.kpi .num {
  font-family: var(--vz-font-mono);
  font-weight: 700;
  font-size: 34px;
  letter-spacing: -0.02em;
  color: var(--vz-text);
  line-height: 1.05;
}

.kpi.hero .num { font-size: 54px; color: var(--vz-green); }
.kpi .unit { font-size: 14px; color: var(--vz-text-dim); font-weight: 500; margin-left: 6px; }
.kpi .sub { margin-top: 10px; font-size: 12px; color: var(--vz-text-faint); }

/* ---- Breakdown bars ---- */

.breakdown { margin-top: 8px; }

.break-row {
  display: grid;
  grid-template-columns: 160px 1fr 84px;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  font-size: 13px;
}

.break-row .name { color: var(--vz-text); font-weight: 500; }

.break-row .bar {
  position: relative;
  height: 22px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 6px;
  overflow: hidden;
}

.break-row .bar .before {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: linear-gradient(90deg, rgba(192, 57, 43, 0.4) 0%, rgba(192, 57, 43, 0.08) 100%);
}

.break-row .bar .after {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: linear-gradient(90deg, rgba(91, 191, 181, 0.8) 0%, rgba(90, 184, 255, 0.5) 100%);
  box-shadow: 0 0 10px rgba(91, 191, 181, 0.3);
  transition: width 0.4s ease;
}

.break-row .delta {
  font-family: var(--vz-font-mono);
  font-size: 12px;
  color: var(--vz-green);
  text-align: right;
}

.legend {
  display: flex; gap: 20px;
  font-size: 11px; color: var(--vz-text-dim);
  margin-top: 16px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.legend .sw { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }
.sw.sw-before { background: rgba(192, 57, 43, 0.5); border: 1px solid rgba(192, 57, 43, 0.8); }
.sw.sw-after { background: linear-gradient(90deg, rgba(91, 191, 181, 0.9), rgba(90, 184, 255, 0.7)); }

/* ---- Charts Row ---- */

.charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 720px) { .charts-row { grid-template-columns: 1fr; } }

.chart-card { display: flex; flex-direction: column; }
.chart-card h2 { margin-bottom: 20px; }

/* Revenue comparison bars */
.rev-chart { display: flex; flex-direction: column; gap: 16px; flex: 1; justify-content: center; }
.rev-bar-group { display: flex; flex-direction: column; gap: 6px; }

.rev-label {
  font-family: var(--vz-font-mono);
  font-size: 11px;
  color: var(--vz-text-dim);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.rev-track {
  height: 32px;
  background: var(--vz-bg-deep);
  border: 1px solid var(--vz-border);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}

.rev-bar {
  height: 100%;
  border-radius: 5px;
  transition: width 0.5s ease;
  min-width: 2px;
}

.rev-before { background: linear-gradient(90deg, rgba(192, 57, 43, 0.7), rgba(192, 57, 43, 0.4)); }
.rev-after { background: linear-gradient(90deg, rgba(91, 191, 181, 0.8), rgba(91, 191, 181, 0.4)); }

.rev-amount {
  font-family: var(--vz-font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--vz-text);
}

.rev-delta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: rgba(91, 191, 181, 0.08);
  border: 1px solid rgba(91, 191, 181, 0.2);
  border-radius: 8px;
  margin-top: 4px;
}

.rev-delta-label {
  font-size: 12px;
  color: var(--vz-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-family: var(--vz-font-mono);
  white-space: nowrap;
}

.rev-delta-val {
  font-family: var(--vz-font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--vz-green);
  white-space: nowrap;
}

/* Efficiency rings */
.rings-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  flex: 1;
  align-content: center;
}

.ring-item { text-align: center; }
.ring-svg { width: 100px; height: 100px; transform: rotate(-90deg); }

.ring-bg {
  fill: none;
  stroke: var(--vz-border);
  stroke-width: 11;
}

.ring-fg {
  fill: none;
  stroke: var(--vz-green);
  stroke-width: 11;
  stroke-linecap: round;
  transition: stroke-dasharray 0.6s ease;
}

.ring-fg-blue { stroke: var(--vz-blue); }
.ring-fg-warm { stroke: #ffb86b; }

.ring-val {
  fill: var(--vz-text);
  font-size: 22px;
  font-weight: 700;
  text-anchor: middle;
  dominant-baseline: middle;
  transform: rotate(90deg);
  transform-origin: 60px 60px;
}

.ring-label {
  fill: var(--vz-text-faint);
  font-family: var(--vz-font-mono);
  font-size: 10px;
  font-weight: 600;
  text-anchor: middle;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transform: rotate(90deg);
  transform-origin: 60px 60px;
}

.ring-caption {
  font-size: 11px;
  color: var(--vz-text-dim);
  margin-top: 8px;
  line-height: 1.4;
}

/* ---- Footnotes ---- */

.footnote {
  font-size: 11px;
  color: var(--vz-text-faint);
  margin-top: 26px;
  line-height: 1.7;
  border-top: 1px solid var(--vz-border);
  padding-top: 20px;
}

.footnote a { color: var(--vz-text-dim); text-decoration: underline; }
.footnote a:hover { color: var(--vz-green); }
.footnote strong { color: var(--vz-text-dim); }

.assumptions {
  margin-top: 24px;
  padding: 18px 20px;
  border: 1px dashed var(--vz-border);
  border-radius: var(--vz-radius);
  font-size: 12px;
  color: var(--vz-text-dim);
}

.assumptions strong { color: var(--vz-text); font-weight: 600; }
.assumptions ul { margin: 8px 0 0; padding-left: 18px; }
.assumptions li { margin: 4px 0; }

/* ---- Buttons ---- */

.reset {
  background: transparent;
  color: var(--vz-text-dim);
  border: 1px solid var(--vz-border);
  font-size: 12px;
  padding: 8px 14px;
  border-radius: var(--vz-radius-sm);
  cursor: pointer;
  transition: all 0.15s;
}

.reset:hover { color: var(--vz-text); border-color: var(--vz-border-strong); }