/* ============================================================
   Joolr ROAS Calculator — page-specific styles
   Extends ../css/styles.css (shared design system).
   ============================================================ */

.container.narrow { max-width: 52rem; }

/* ---------- Page hero ---------- */
.calc-hero {
  padding-block: clamp(4.5rem, 8vw, 7rem) clamp(2.5rem, 4vw, 3.5rem);
}
.calc-hero .lede { margin-inline: auto; }

/* ---------- Calculator panel ---------- */
.calc-app { padding-bottom: clamp(4rem, 7vw, 6rem); }

.calc-panel {
  background: var(--neutral-950);
  border: 1px solid var(--neutral-800);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 3vw, 2.5rem);
  color: var(--neutral-400);
}

/* Settings row */
.calc-settings {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--neutral-800);
}
@media (min-width: 800px) {
  .calc-settings { grid-template-columns: auto 1fr; gap: 4rem; }
}

.setting-label, .setting .slider-head label {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--neutral-200);
}
.setting-label { display: block; margin-bottom: 0.75rem; }

.seg-group {
  display: inline-flex;
  flex-wrap: wrap;
  max-width: 100%;
  background: var(--neutral-900);
  border: 1px solid var(--neutral-800);
  border-radius: 1.5rem;
  padding: 0.25rem;
  gap: 0.25rem;
}
.seg {
  border: 0;
  background: transparent;
  color: var(--neutral-400);
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.5rem 0.875rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}
.seg:hover { color: var(--white); }
.seg.active { background: var(--jewel); color: var(--white); }

.setting-margin { max-width: 26rem; }
.setting-margin .slider-head { margin-bottom: 0.875rem; }
.setting-margin output { font-weight: 700; color: var(--cyan); font-variant-numeric: tabular-nums; }
.setting-hint { font-size: 0.8125rem; color: var(--neutral-500); margin-top: 0.625rem; }

/* ---------- Channel table ---------- */
.channel-table { margin-top: 2rem; }

.channel-head,
.channel-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 4.5rem 2rem;
  gap: 0.75rem;
  align-items: center;
}
.channel-head {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--neutral-500);
  padding-bottom: 0.75rem;
}
.channel-row { padding-block: 0.625rem; }

.channel-row select,
.channel-row input[type="text"],
.channel-row input[type="number"] {
  width: 100%;
  background: var(--neutral-900);
  border: 1px solid var(--neutral-800);
  border-radius: 0.625rem;
  color: var(--white);
  font: inherit;
  font-size: 0.9375rem;
  padding: 0.625rem 0.75rem;
  font-variant-numeric: tabular-nums;
}
.channel-row select:focus,
.channel-row input:focus {
  outline: 2px solid var(--jewel);
  outline-offset: 1px;
  border-color: transparent;
}
.channel-row input::placeholder { color: var(--neutral-600); }

/* Hide number spinners for a cleaner look */
.channel-row input[type="number"]::-webkit-outer-spin-button,
.channel-row input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.channel-row input[type="number"] { -moz-appearance: textfield; appearance: textfield; }

.roas-chip {
  font-size: 0.875rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-align: center;
  border-radius: 999px;
  padding: 0.375rem 0.25rem;
  background: var(--neutral-900);
  color: var(--neutral-500);
}
.roas-chip.good { background: rgb(34 197 94 / 0.15); color: #4ade80; }
.roas-chip.bad  { background: rgb(239 68 68 / 0.15); color: #f87171; }

.row-remove {
  border: 0;
  background: transparent;
  color: var(--neutral-600);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.375rem;
  border-radius: 0.5rem;
  transition: color 0.15s ease, background 0.15s ease;
}
.row-remove:hover { color: #f87171; background: rgb(239 68 68 / 0.1); }

/* Mobile: stack each row into a mini-card */
@media (max-width: 700px) {
  .channel-head { display: none; }
  .channel-row {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "channel channel"
      "spend revenue"
      "roas remove";
    background: var(--neutral-900);
    border: 1px solid var(--neutral-800);
    border-radius: 0.875rem;
    padding: 1rem;
    margin-bottom: 0.75rem;
  }
  .channel-row > :nth-child(1) { grid-area: channel; }
  .channel-row > :nth-child(2) { grid-area: spend; }
  .channel-row > :nth-child(3) { grid-area: revenue; }
  .channel-row > .roas-chip { grid-area: roas; align-self: center; }
  .channel-row > .row-remove { grid-area: remove; justify-self: end; }
  .channel-row select, .channel-row input { background: var(--neutral-950); }
}

.channel-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--neutral-800);
}
.btn-add {
  border: 1px dashed var(--neutral-700, #404040);
  background: transparent;
  color: var(--neutral-400);
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 999px;
  padding: 0.625rem 1.25rem;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.btn-add:hover { color: var(--white); border-color: var(--neutral-500); }

/* ---------- Results ---------- */
.calc-results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2rem;
}
@media (min-width: 900px) { .calc-results { grid-template-columns: repeat(4, 1fr); } }

.result-card {
  background: var(--neutral-900);
  border: 1px solid var(--neutral-800);
  border-radius: 0.875rem;
  padding: 1.25rem;
  display: grid;
  gap: 0.375rem;
  align-content: start;
}
.result-card .result-label { font-size: 0.8125rem; color: var(--neutral-500); }
.result-card .result-value {
  font-size: clamp(1.375rem, 2.5vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--white);
  font-variant-numeric: tabular-nums;
}
.result-verdict-text { font-size: 1.0625rem !important; line-height: 1.35; letter-spacing: 0 !important; }
.result-verdict.good { border-color: rgb(34 197 94 / 0.4); }
.result-verdict.good .result-verdict-text { color: #4ade80; }
.result-verdict.bad { border-color: rgb(239 68 68 / 0.4); }
.result-verdict.bad .result-verdict-text { color: #f87171; }

.calc-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
  margin-top: 1.75rem;
}
.calc-foot .microcopy { margin-top: 0; max-width: 26rem; }
.calc-foot .btn.copied { background: #16a34a; }

/* White button for dark surfaces — links into the full platform */
.btn-light {
  background: var(--white);
  color: var(--neutral-950);
}
.btn-light:hover { background: var(--neutral-100); }

/* ---------- FAQ accordion ---------- */
.calc-faq { padding-top: 0; }
.calc-faq h2 { text-align: center; }

.accordion {
  margin-top: 2.5rem;
  border-top: 1px solid var(--neutral-200);
}
.accordion details { border-bottom: 1px solid var(--neutral-200); }
.accordion summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  list-style: none;
  cursor: pointer;
  padding: 1.375rem 0.25rem;
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--neutral-900);
  transition: color 0.15s ease;
}
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary:hover { color: var(--jewel-dark); }
.accordion .chev {
  font-weight: 400;
  font-size: 1.375rem;
  line-height: 1;
  color: var(--neutral-400);
  transition: transform 0.2s ease;
}
.accordion details[open] .chev { transform: rotate(45deg); color: var(--jewel); }
.accordion details p {
  padding: 0 0.25rem 1.5rem;
  color: var(--neutral-600);
  max-width: 44rem;
}

/* ---------- CTA ---------- */
.calc-cta .center-lede { margin-inline: auto; }
.calc-cta .hero-ctas { margin-top: 2.5rem; }
.text-link-light { color: var(--neutral-200); }
.text-link-light:hover { color: var(--white); }

/* ---------- Utilities ---------- */
.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;
}