/* =============================================================================
   ADU Explorer — Estimator
   ============================================================================= */

/* -----------------------------------------------------------------------------
   Tool layout — inputs on the left (sticky on desktop), results on the right
   ----------------------------------------------------------------------------- */
.est {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-4);
}
@media (min-width: 56rem) {
  .est {
    grid-template-columns: 22rem 1fr;
    gap: var(--s-5);
    align-items: start;
  }
}

/* -----------------------------------------------------------------------------
   Form (inputs)
   ----------------------------------------------------------------------------- */
.est__form {
  background: var(--paper-inset);
  border: 1px solid var(--rule-strong);
  padding: var(--s-3);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}
@media (min-width: 56rem) {
  .est__form {
    position: sticky;
    top: 5rem;
    padding: var(--s-4);
  }
}

.est__form-title {
  font-family: var(--font-mono);
  font-size: var(--t-mono-sm);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--rule);
  padding-bottom: var(--s-1);
  margin-bottom: var(--s-1);
}

.est__form-note {
  font-family: var(--font-mono);
  font-size: var(--t-mono-xs);
  letter-spacing: 0.06em;
  color: var(--ink-faded);
  margin-top: var(--s-1);
  border-top: 1px dotted var(--rule);
  padding-top: var(--s-2);
}

.est-field {
  border: 0;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--s-1);
}
.est-field__label {
  font-family: var(--font-mono);
  font-size: var(--t-mono-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 500;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s-1);
}
.est-field__val {
  color: var(--stamp);
  font-family: var(--font-serif);
  font-size: var(--t-body);
  letter-spacing: 0;
  text-transform: none;
  font-variation-settings: "opsz" 18, "wght" 460;
  font-feature-settings: "tnum" on;
}

/* Select */
.est-input {
  font-family: var(--font-serif);
  font-size: var(--t-body);
  font-variation-settings: "opsz" 18, "wght" 400;
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  padding: 0.6rem 0.8rem;
  color: var(--ink);
  min-height: 44px;
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path fill='none' stroke='%231a1814' stroke-width='1.5' d='M1 1.5l5 5 5-5'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0.8rem center;
  padding-right: 2rem;
}
.est-input:focus {
  outline: none;
  border-color: var(--stamp);
  background-color: var(--paper);
}

/* Radio chips */
.est-radios {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.est-radio {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--rule);
  background: var(--paper);
  cursor: pointer;
  min-height: 44px;
  font-family: var(--font-serif);
  font-size: var(--t-body-sm);
  font-variation-settings: "opsz" 16, "wght" 400;
  color: var(--ink);
  transition: border-color var(--t-fast) var(--ease),
              background var(--t-fast) var(--ease);
}
.est-radio:hover {
  border-color: var(--rule-strong);
}
.est-radio input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.est-radio input:checked + span {
  color: var(--ink);
  font-weight: 600;
}
.est-radio input:checked ~ span::before {
  content: "▸";
  color: var(--stamp);
  margin-right: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.85em;
}
.est-radio:has(input:checked) {
  border-color: var(--stamp);
  background: var(--paper);
  box-shadow: inset 3px 0 0 var(--stamp);
}
.est-radio:focus-within {
  outline: 2px solid var(--topo);
  outline-offset: 2px;
}

/* Range slider */
.est-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 24px;
  background: transparent;
  cursor: pointer;
  padding: 8px 0;
}
.est-range::-webkit-slider-runnable-track {
  height: 2px;
  background: var(--rule-strong);
}
.est-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  background: var(--stamp);
  border: 2px solid var(--paper);
  margin-top: -10px;
  cursor: pointer;
  box-shadow: 0 0 0 1px var(--stamp);
}
.est-range::-moz-range-track {
  height: 2px;
  background: var(--rule-strong);
}
.est-range::-moz-range-thumb {
  width: 22px;
  height: 22px;
  background: var(--stamp);
  border: 2px solid var(--paper);
  cursor: pointer;
  box-shadow: 0 0 0 1px var(--stamp);
}
.est-range:focus-visible {
  outline: 2px solid var(--topo);
  outline-offset: 4px;
}

.est-range__scale {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: var(--t-mono-xs);
  letter-spacing: 0.08em;
  color: var(--ink-faded);
  margin-top: 2px;
}

/* -----------------------------------------------------------------------------
   Results — summary band + breakdown
   ----------------------------------------------------------------------------- */
.est__results {
  min-width: 0;
}

.est-band {
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  padding: var(--s-4);
  position: relative;
  margin-bottom: var(--s-3);
}
.est-band__stamp {
  position: absolute;
  top: var(--s-2);
  right: var(--s-2);
  font-family: var(--font-mono);
  font-size: var(--t-mono-xs);
  color: var(--ink-faded);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.est-band__label {
  font-family: var(--font-mono);
  font-size: var(--t-mono-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: block;
  margin-bottom: var(--s-1);
}
.est-band__range {
  font-family: var(--font-serif);
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  line-height: 1.04;
  font-variation-settings: "opsz" 72, "wght" 440;
  letter-spacing: -0.022em;
  font-feature-settings: "tnum" on;
  color: var(--ink);
  margin-bottom: var(--s-2);
}
.est-band__range .dash {
  color: var(--rule-strong);
  margin-inline: 0.18em;
  font-size: 0.7em;
  vertical-align: 0.08em;
}

.est-band__sub {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-top: var(--s-2);
  margin-bottom: var(--s-2);
  border-top: 1px solid var(--rule);
}
.est-band__sub-label {
  font-family: var(--font-mono);
  font-size: var(--t-mono-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.est-band__sub-val {
  font-family: var(--font-serif);
  font-size: var(--t-h4);
  font-variation-settings: "opsz" 22, "wght" 460;
  color: var(--topo);
  letter-spacing: -0.008em;
  font-feature-settings: "tnum" on;
}
.est-band__sub-val .dash { color: var(--rule-strong); margin-inline: 0.15em; }

.est-band__caption {
  font-family: var(--font-mono);
  font-size: var(--t-mono-xs);
  letter-spacing: 0.06em;
  color: var(--ink-faded);
  line-height: 1.5;
  max-width: 60ch;
}

/* -----------------------------------------------------------------------------
   Breakdown — lockable section with email gate
   ----------------------------------------------------------------------------- */
.est-break {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  padding: var(--s-4);
}

.est-break__title {
  font-family: var(--font-mono);
  font-size: var(--t-mono-sm);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: var(--s-3);
  padding-bottom: var(--s-1);
  border-bottom: 1px solid var(--rule);
}

.est-break__list {
  list-style: none;
  padding: 0;
}
.est-break__list li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--s-2);
  padding: var(--s-2) 0;
  border-bottom: 1px dotted var(--rule);
  font-family: var(--font-mono);
  font-size: var(--t-mono-sm);
  color: var(--ink-soft);
  letter-spacing: 0.02em;
  align-items: baseline;
}
.est-break__list li small {
  color: var(--ink-faded);
  font-size: var(--t-mono-xs);
  letter-spacing: 0.06em;
  display: block;
  margin-top: 2px;
}
.est-break__list li strong {
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: var(--t-body);
  font-variation-settings: "opsz" 18, "wght" 460;
  letter-spacing: 0;
  font-feature-settings: "tnum" on;
  white-space: nowrap;
}

.est-break__uplift {
  margin-top: var(--s-3);
  padding-top: var(--s-2);
  border-top: 2px solid var(--ink);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: var(--t-mono-sm);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.est-break__uplift strong {
  font-family: var(--font-serif);
  font-size: var(--t-h3);
  font-variation-settings: "opsz" 28, "wght" 460;
  color: var(--topo);
  letter-spacing: -0.008em;
  font-feature-settings: "tnum" on;
  text-transform: none;
}

/* Locked state — blur the breakdown content; overlay gate sits on top */
.est-break--locked {
  position: relative;
  overflow: hidden;
}
.est-break--locked .est-break__list,
.est-break--locked .est-break__uplift {
  filter: blur(6px);
  pointer-events: none;
  user-select: none;
}

/* Gate overlay */
.est-gate {
  position: absolute;
  inset: var(--s-5) var(--s-3) var(--s-3) var(--s-3);
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  padding: var(--s-4);
  display: flex;
  flex-direction: column;
  justify-content: center;
  box-shadow: 0 12px 32px rgba(26, 24, 20, 0.06);
}
@media (max-width: 47.99rem) {
  .est-gate {
    position: static;
    margin-top: var(--s-3);
    inset: auto;
    box-shadow: none;
  }
}

.est-gate__stamp {
  font-family: var(--font-mono);
  font-size: var(--t-mono-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--stamp);
  margin-bottom: var(--s-2);
}
.est-gate__title {
  font-family: var(--font-serif);
  font-size: var(--t-h3);
  font-variation-settings: "opsz" 28, "wght" 460;
  letter-spacing: -0.008em;
  margin-bottom: var(--s-2);
  text-wrap: balance;
  line-height: 1.2;
}
.est-gate__lede {
  font-family: var(--font-serif);
  font-size: var(--t-body-sm);
  line-height: 1.55;
  color: var(--ink-soft);
  margin-bottom: var(--s-3);
  max-width: 44ch;
}

.est-gate__form {
  display: flex;
  flex-direction: column;
  gap: var(--s-1);
}
.est-gate__row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--s-1);
  align-items: stretch;
}
.est-gate__form input[type="email"],
.est-gate__name {
  font-family: var(--font-serif);
  font-size: var(--t-body);
  font-variation-settings: "opsz" 18, "wght" 400;
  background: var(--paper-inset);
  border: 1px solid var(--rule-strong);
  padding: 0.65rem 0.85rem;
  color: var(--ink);
  min-height: 44px;
}
.est-gate__form input[type="email"]:focus,
.est-gate__name:focus {
  outline: none;
  border-color: var(--stamp);
}
.est-gate__name { margin-top: 0; }

.est-gate__error {
  font-family: var(--font-mono);
  font-size: var(--t-mono-xs);
  color: var(--error);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: var(--s-1);
}

/* Unlocked toast (post-submit) */
.est-unlocked {
  background: var(--paper-inset);
  border-left: 4px solid var(--topo);
  padding: var(--s-2) var(--s-3);
  font-family: var(--font-mono);
  font-size: var(--t-mono-sm);
  letter-spacing: 0.06em;
  color: var(--topo);
  margin-bottom: var(--s-3);
  text-transform: uppercase;
}

/* -----------------------------------------------------------------------------
   Methodology list
   ----------------------------------------------------------------------------- */
.method-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: var(--rule-w) solid var(--rule);
  max-width: 64rem;
}
.method-list li {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: var(--s-3);
  padding: var(--s-3) 0;
  border-bottom: var(--rule-w) solid var(--rule);
  align-items: start;
}
.method-list__num {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  line-height: 1;
  font-variation-settings: "opsz" 56, "wght" 360;
  color: var(--stamp);
  letter-spacing: -0.02em;
}
.method-list li h3 {
  font-family: var(--font-serif);
  font-size: var(--t-h3);
  font-variation-settings: "opsz" 28, "wght" 460;
  letter-spacing: -0.008em;
  margin-bottom: var(--s-1);
}
.method-list li p {
  font-size: var(--t-body);
  line-height: 1.6;
  max-width: 60ch;
}