/* SimulSolaire — fiche technique chaleureuse.
   Papier crème, encre profonde, ambre solaire. Fraunces (display) + IBM Plex Sans (texte). */

:root {
  --paper: #FAF5EA;
  --paper-deep: #F3ECDC;
  --ink: #20262E;
  --ink-soft: #5A6270;
  --amber: #E89B1C;
  --amber-deep: #B26F08;
  --amber-wash: #FCEED2;
  --line: #E2D8C2;
  --ok: #3E7C4F;
  --bad: #A8442E;
  --radius: 14px;
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "IBM Plex Sans", "Helvetica Neue", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
}

* { box-sizing: border-box; margin: 0; }

body {
  font-family: var(--font-body);
  background:
    radial-gradient(1200px 500px at 85% -10%, var(--amber-wash) 0%, transparent 60%),
    var(--paper);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* grain discret, honnêteté de papier */
body::after {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap { max-width: 720px; margin: 0 auto; padding: 0 20px; }

/* --- arc solaire décoratif --- */
.sun-arc {
  position: absolute; top: -140px; right: -120px;
  width: 380px; height: 380px;
  border: 2px dashed var(--amber);
  border-radius: 50%;
  opacity: .25;
  pointer-events: none;
  animation: rise 1.6s cubic-bezier(.2,.8,.3,1) both;
}
@keyframes rise { from { transform: translateY(60px); opacity: 0; } to { transform: none; opacity: .25; } }

/* --- masthead --- */
.masthead { padding: 26px 0 6px; }
.masthead .wrap { display: flex; flex-wrap: wrap; align-items: baseline; gap: 14px; justify-content: space-between; }
.brand {
  font-family: var(--font-display);
  font-weight: 900; font-size: 1.5rem; letter-spacing: -.02em;
}
.brand span { color: var(--amber-deep); }
.honest-badges { display: flex; gap: 8px; list-style: none; padding: 0; }
.honest-badges li {
  font-size: .72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em;
  padding: 4px 10px; border: 1.5px solid var(--ink); border-radius: 999px;
  background: var(--paper);
}

/* --- hero --- */
.hero { padding: 40px 0 26px; }
.hero h1 {
  font-family: var(--font-display);
  font-weight: 700; font-size: clamp(1.9rem, 5.4vw, 3rem);
  line-height: 1.12; letter-spacing: -.015em;
  max-width: 16ch;
}
.hero h1 em { font-style: italic; color: var(--amber-deep); }
.lede { margin-top: 14px; color: var(--ink-soft); max-width: 56ch; }
abbr { text-decoration: underline dotted; cursor: help; }

/* --- cartes --- */
.card {
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 2px 0 var(--line), 0 18px 40px -28px rgba(32,38,46,.35);
}

/* --- formulaire --- */
.form-card { padding: 26px 24px 18px; display: grid; gap: 20px; }
.field { display: grid; gap: 7px; position: relative; }
label, .label { font-weight: 600; font-size: .92rem; }
.hint { font-weight: 400; color: var(--ink-soft); }
.micro { font-size: .78rem; color: var(--ink-soft); }
.center { text-align: center; }

input[type="text"], select {
  font: inherit; color: inherit;
  padding: 12px 14px;
  border: 1.5px solid var(--line); border-radius: 10px;
  background: var(--paper);
  width: 100%;
}
input[type="text"]:focus, select:focus, input[type="range"]:focus-visible {
  outline: 3px solid var(--amber-wash);
  border-color: var(--amber);
}

.suggestions {
  position: absolute; top: calc(100% - 26px); left: 0; right: 0; z-index: 5;
  list-style: none; padding: 4px; margin: 0;
  background: #fff; border: 1.5px solid var(--ink); border-radius: 10px;
  box-shadow: 0 14px 30px -12px rgba(32,38,46,.35);
}
.suggestions li { padding: 9px 11px; border-radius: 7px; cursor: pointer; font-size: .92rem; }
.suggestions li:hover, .suggestions li[aria-selected="true"] { background: var(--amber-wash); }
.suggestions .sugg-context { color: var(--ink-soft); font-size: .8rem; }

.segmented { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.segmented label { cursor: pointer; }
.segmented input { position: absolute; opacity: 0; }
.segmented span {
  display: grid; gap: 2px; text-align: center;
  padding: 10px 6px;
  border: 1.5px solid var(--line); border-radius: 10px;
  background: var(--paper);
  font-weight: 600;
  transition: transform .08s ease;
}
.segmented small { font-weight: 400; color: var(--ink-soft); font-size: .72rem; }
.segmented input:checked + span {
  border-color: var(--ink);
  background: var(--amber-wash);
  box-shadow: inset 0 -3px 0 var(--amber);
}
.segmented input:focus-visible + span { outline: 3px solid var(--amber-wash); }
.segmented span:active { transform: scale(.97); }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 540px) { .field-row { grid-template-columns: 1fr; } }

input[type="range"] { accent-color: var(--amber-deep); width: 100%; }
output { font-variant-numeric: tabular-nums; color: var(--amber-deep); font-weight: 600; margin-left: 6px; }

.cta {
  font: inherit; font-weight: 700; font-size: 1.05rem;
  padding: 15px 20px;
  background: var(--ink); color: var(--paper);
  border: none; border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 4px 0 var(--amber-deep);
  transition: transform .08s ease, box-shadow .08s ease;
}
.cta:hover { transform: translateY(-1px); box-shadow: 0 5px 0 var(--amber-deep); }
.cta:active { transform: translateY(2px); box-shadow: 0 1px 0 var(--amber-deep); }
.cta[disabled] { opacity: .6; cursor: wait; }

/* --- résultat --- */
.result { margin-top: 26px; }
.result-card { padding: 28px 24px; animation: reveal .5s cubic-bezier(.2,.8,.3,1) both; }
@keyframes reveal { from { transform: translateY(14px); opacity: 0; } to { transform: none; opacity: 1; } }

.result-where { font-size: .9rem; color: var(--ink-soft); }
.result-headline { display: flex; align-items: baseline; gap: 10px; margin-top: 4px; }
.result-figure {
  font-family: var(--font-display);
  font-weight: 900; font-size: clamp(2.6rem, 9vw, 4rem);
  letter-spacing: -.02em; color: var(--amber-deep);
  font-variant-numeric: tabular-nums;
}
.result-unit { font-weight: 600; color: var(--ink-soft); }
.result-uncertainty { font-size: .9rem; color: var(--ink-soft); }
.result-uncertainty strong { color: var(--ink); }

.chart-title { font-family: var(--font-display); font-size: 1.05rem; margin: 26px 0 10px; }
.chart {
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 6px;
  align-items: end; height: 130px;
  padding: 0 2px;
}
.bar { display: flex; flex-direction: column; justify-content: flex-end; gap: 4px; text-align: center; height: 100%; }
.bar i {
  display: block; border-radius: 5px 5px 2px 2px;
  background: linear-gradient(180deg, var(--amber) 0%, var(--amber-deep) 100%);
  animation: grow .7s cubic-bezier(.2,.8,.3,1) both;
  animation-delay: calc(var(--i) * 40ms);
  transform-origin: bottom;
}
@keyframes grow { from { transform: scaleY(0); } }
.bar b { font-size: .62rem; font-weight: 500; color: var(--ink-soft); text-transform: uppercase; }

.result-meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 24px; padding: 0; }
@media (max-width: 540px) { .result-meta { grid-template-columns: 1fr; } }
.result-meta div { background: var(--paper); border: 1.5px solid var(--line); border-radius: 10px; padding: 10px 12px; }
.result-meta dt { font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-soft); }
.result-meta dd { margin: 2px 0 0; font-weight: 600; font-size: .95rem; }

/* --- volet économique --- */
.econ { display: grid; gap: 14px; }
.econ-headline { display: flex; align-items: baseline; gap: 10px; }
.econ-figure {
  font-family: var(--font-display);
  font-weight: 900; font-size: clamp(2rem, 7vw, 3rem);
  letter-spacing: -.02em; color: var(--ok);
  font-variant-numeric: tabular-nums;
}
.econ-slider { background: var(--paper); border: 1.5px solid var(--line); border-radius: 10px; padding: 12px 14px; display: grid; gap: 6px; }
.econ-honest { border-left: 3px solid var(--amber); padding-left: 10px; font-style: italic; }

.methodo { margin-top: 22px; border-top: 1.5px dashed var(--line); padding-top: 16px; }
.methodo summary { cursor: pointer; font-weight: 600; }
.methodo-tag {
  font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .07em;
  color: var(--amber-deep); border: 1.5px solid var(--amber); border-radius: 999px;
  padding: 2px 8px; margin-left: 8px;
}
.methodo-body { margin-top: 12px; font-size: .9rem; color: var(--ink-soft); display: grid; gap: 10px; }
.methodo-body a { color: var(--amber-deep); }
.pvgis-request {
  font-family: var(--font-mono); font-size: .72rem;
  background: var(--ink); color: #E9D9A8;
  padding: 10px 12px; border-radius: 8px;
  word-break: break-all; display: block;
}

.error { margin-top: 26px; padding: 18px 22px; border-color: var(--bad); color: var(--bad); font-weight: 500; }

/* --- footer --- */
.footer { padding: 44px 20px 36px; color: var(--ink-soft); font-size: .9rem; display: grid; gap: 8px; }
.footer a { color: var(--amber-deep); }

/* --- pages article (guides) --- */
.article { max-width: 680px; padding-top: 26px; }
.article h1 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.7rem, 4.6vw, 2.4rem); line-height: 1.15; letter-spacing: -.015em;
}
.article-meta { margin-top: 8px; font-size: .82rem; color: var(--ink-soft); }
.article .lede { margin-top: 18px; }
.article h2 { font-family: var(--font-display); font-size: 1.35rem; margin: 34px 0 12px; }
.article p, .article li { color: var(--ink); }
.article ul, .article ol { padding-left: 22px; display: grid; gap: 8px; margin: 12px 0; }
.article table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: .93rem; }
.article th, .article td { border: 1.5px solid var(--line); padding: 9px 11px; text-align: left; }
.article th { background: var(--paper-deep); font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; }
.article tr:nth-child(even) td { background: var(--paper); }
.article-cta {
  margin: 26px 0; padding: 20px 22px;
  background: var(--amber-wash); border: 1.5px solid var(--amber); border-radius: var(--radius);
  display: grid; gap: 14px;
}
.article-cta .cta { display: inline-block; text-align: center; text-decoration: none; justify-self: start; }
.article-sources { font-size: .88rem; color: var(--ink-soft); }

@media (prefers-reduced-motion: reduce) {
  .sun-arc, .result-card, .bar i { animation: none; }
}