/* =====================================================================
   SolarMeshLabs — site promo + manuel
   Design system. Signature : sinusoïde AC découpée (angle de phase).
   Palette : pétrole / ambre solaire / teal mesh / papier.
   Typo : Space Grotesk (display) · Hanken Grotesk (texte) · IBM Plex Mono (data).
   ===================================================================== */

:root {
  /* — couleurs — */
  --petrol-900: #0c1a22;
  --petrol-800: #102530;
  --petrol-700: #16323f;
  --petrol-600: #1d4150;
  --paper:      #f4f7f7;
  --card:       #ffffff;
  --ink:        #0c1a22;
  --ink-soft:   rgba(12, 26, 34, 0.66);
  --ink-faint:  rgba(12, 26, 34, 0.46);
  --line:       rgba(12, 26, 34, 0.12);
  --on-dark:        #eef4f4;
  --on-dark-soft:   rgba(238, 244, 244, 0.66);
  --on-dark-faint:  rgba(238, 244, 244, 0.40);
  --line-dark:      rgba(238, 244, 244, 0.14);

  --volt:        #0a74e0;  /* accent principal — bleu PlayStation */
  --volt-deep:   #0858ad;  /* texte/bordure sur fond clair */
  --volt-bright: #3a9bff;  /* accent sur fond sombre */
  --volt-soft:   rgba(10, 116, 224, 0.13);
  --mesh:       #15b89b;   /* routage / maillage (sinusoïde) */
  --mesh-deep:  #0e8f79;
  --mesh-soft:  rgba(21, 184, 155, 0.14);
  --amber:      #f0a318;   /* réservé aux ALERTES uniquement */
  --amber-deep: #b9790a;
  --amber-soft: rgba(240, 163, 24, 0.15);
  --danger:     #e5484d;

  /* — typo — */
  --display: "Space Grotesk", system-ui, sans-serif;
  --body:    "Hanken Grotesk", system-ui, sans-serif;
  --mono:    "IBM Plex Mono", ui-monospace, monospace;

  /* — divers — */
  --wrap: 1120px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 1px 2px rgba(12,26,34,.06), 0 8px 30px rgba(12,26,34,.07);
  --shadow-lg: 0 24px 60px rgba(12,26,34,.16);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
  margin: 0;
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 .4em;
}

p { margin: 0 0 1rem; }
strong { font-weight: 600; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 24px; }

/* eyebrow — étiquette « électrique » (fonction, pas décoration) */
.eyebrow {
  font-family: var(--mono);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mesh-deep);
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  margin: 0 0 1rem;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 2px;
  background: var(--volt);
  display: inline-block;
}
.on-dark .eyebrow, .hero .eyebrow { color: var(--volt-bright); }
.on-dark .eyebrow::before, .hero .eyebrow::before { background: var(--mesh); }

/* code / valeurs machine */
code, .mono { font-family: var(--mono); font-size: .9em; }
:not(pre) > code {
  background: var(--mesh-soft);
  color: var(--mesh-deep);
  padding: .12em .42em;
  border-radius: 6px;
  font-size: .82em;
}
.on-dark :not(pre) > code { background: rgba(255,255,255,.08); color: #8fe6d4; }

/* =====================  HEADER  ===================== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(12, 26, 34, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-dark);
  color: var(--on-dark);
}
.site-header .wrap {
  display: flex; align-items: center; gap: 1.5rem;
  height: 68px;
}
.brand { display: flex; align-items: center; gap: .6rem; font-family: var(--display); font-weight: 700; font-size: 1.12rem; letter-spacing: -0.02em; color: var(--on-dark); }
.brand .glyph { width: 34px; height: 34px; flex: none; }
.brand b { color: var(--volt-bright); font-weight: 700; }

.nav { margin-left: auto; display: flex; align-items: center; gap: .35rem; }
.nav a {
  font-size: .95rem; font-weight: 500;
  color: var(--on-dark-soft);
  padding: .5rem .8rem; border-radius: 8px;
  transition: color .15s, background .15s;
}
.nav a:hover { color: var(--on-dark); background: rgba(255,255,255,.06); }
.nav a.cta {
  color: #fff; background: var(--volt);
  font-weight: 600;
}
.nav a.cta:hover { background: #1f86ee; }

.nav-toggle { display: none; margin-left: auto; background: none; border: 0; color: var(--on-dark); cursor: pointer; padding: .4rem; }

/* =====================  HERO  ===================== */
.hero {
  position: relative;
  background:
    radial-gradient(1200px 600px at 78% -10%, rgba(21,184,155,.16), transparent 60%),
    radial-gradient(900px 500px at 10% 110%, rgba(58,155,255,.14), transparent 55%),
    var(--petrol-900);
  color: var(--on-dark);
  overflow: hidden;
}
.hero canvas#wave {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  opacity: .9;
}
.hero .wrap { position: relative; z-index: 2; padding-block: clamp(64px, 12vh, 130px); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 2rem; align-items: center; }
.hero h1 {
  font-size: clamp(2.5rem, 5.6vw, 4.4rem);
  margin-bottom: .5rem;
}
.hero h1 .accent { color: var(--volt-bright); }
.hero h1 .mesh { color: var(--mesh); }
.hero .lead {
  font-size: clamp(1.05rem, 1.7vw, 1.3rem);
  color: var(--on-dark-soft);
  max-width: 34ch;
  margin-bottom: 1.8rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; }

.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--body); font-weight: 600; font-size: 1rem;
  padding: .8rem 1.35rem; border-radius: 10px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .12s ease, background .15s, border-color .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-volt { background: var(--volt); color: #fff; }
.btn-volt:hover { background: #1f86ee; }
.btn-ghost { background: transparent; color: var(--on-dark); border-color: var(--line-dark); }
.btn-ghost:hover { border-color: var(--mesh); color: #fff; }
.btn-ink { background: var(--ink); color: #fff; }
.btn-ink:hover { background: var(--petrol-700); }

/* carte « lecture du watt » dans le hero (légende de la signature) */
.wave-legend {
  background: rgba(12,26,34,.5);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.5rem;
  backdrop-filter: blur(4px);
}
.wave-legend h3 { font-size: 1rem; color: var(--on-dark); margin-bottom: .8rem; }
.wave-legend ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .7rem; }
.wave-legend li { display: flex; gap: .7rem; align-items: flex-start; font-size: .92rem; color: var(--on-dark-soft); }
.dot { width: 12px; height: 12px; border-radius: 4px; margin-top: .28rem; flex: none; }
.dot.volt { background: var(--volt-bright); }
.dot.mesh  { background: var(--mesh); }
.dot.grid  { background: var(--on-dark-faint); }

/* =====================  SECTIONS  ===================== */
.section { padding-block: clamp(54px, 9vw, 100px); }
.section.alt { background: var(--card); }
.section.dark { background: var(--petrol-900); color: var(--on-dark); }
.section.dark h2 { color: #fff; }
.section-head { max-width: 60ch; margin-bottom: 2.6rem; }
.section-head h2 { font-size: clamp(1.9rem, 3.4vw, 2.7rem); }
.section-head p { color: var(--ink-soft); font-size: 1.1rem; }
.section.dark .section-head p { color: var(--on-dark-soft); }

/* stats — le surplus en chiffres (utilisé avec parcimonie) */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.stat .num { font-family: var(--display); font-weight: 700; font-size: clamp(2.2rem, 4vw, 3.2rem); line-height: 1; color: var(--volt-bright); }
.stat .num .u { font-size: .5em; color: var(--on-dark-soft); margin-left: .15em; }
.stat .lbl { color: var(--on-dark-soft); font-size: .95rem; margin-top: .4rem; }

/* =====================  CARTES PRODUITS / MESH  ===================== */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.4rem; }
.card-prod {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  display: flex; flex-direction: column; gap: .2rem;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s;
}
.section.alt .card-prod { background: var(--paper); }
.card-prod:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--mesh); }
.card-prod .pico { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: var(--mesh-soft); color: var(--mesh-deep); margin-bottom: 1rem; }
.card-prod .pico svg { width: 24px; height: 24px; }
.card-prod[data-accent="volt"] .pico { background: var(--volt-soft); color: var(--volt-deep); }
.card-prod h3 { font-size: 1.25rem; margin-bottom: .15rem; }
.card-prod .hw { font-family: var(--mono); font-size: .76rem; color: var(--ink-faint); letter-spacing: .02em; margin-bottom: .7rem; }
.card-prod p { color: var(--ink-soft); font-size: .96rem; flex: 1; }
.card-prod .more { margin-top: 1rem; font-weight: 600; color: var(--mesh-deep); font-size: .92rem; display: inline-flex; align-items: center; gap: .4rem; }
.card-prod:hover .more { gap: .65rem; }

/* puces de fonctionnalités */
.feature-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 1.1rem; }
.feature-list li { display: grid; grid-template-columns: 28px 1fr; gap: .9rem; align-items: start; }
.feature-list .fi { width: 28px; height: 28px; border-radius: 8px; background: var(--volt-soft); color: var(--volt-deep); display: grid; place-items: center; }
.feature-list b { font-family: var(--display); font-weight: 500; }
.section.dark .feature-list .fi { background: rgba(255,255,255,.08); color: var(--volt-bright); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }

/* cartes matériel avec photo (hotlink + fallback onerror) */
.hw-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(232px, 1fr)); gap: 1.4rem; }
.hw-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; display: flex; flex-direction: column; transition: transform .15s ease, box-shadow .15s ease; }
.section.alt .hw-card { background: var(--paper); }
.hw-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.hw-shot { aspect-ratio: 4 / 3; background: #fff; display: grid; place-items: center; border-bottom: 1px solid var(--line); padding: 12px; }
.hw-shot img { max-width: 100%; max-height: 100%; object-fit: contain; }
.hw-shot .ph { font-family: var(--mono); font-size: .74rem; letter-spacing: .04em; color: var(--ink-faint); text-align: center; padding: 1rem; }
.hw-card .body { padding: 1.05rem 1.2rem 1.2rem; display: flex; flex-direction: column; gap: .55rem; flex: 1; }
.hw-card h3 { font-size: 1.06rem; margin: 0; }
.hw-card .ref { font-family: var(--mono); font-size: .73rem; color: var(--volt-deep); }
.hw-card .specs { list-style: none; margin: .15rem 0 0; padding: 0; display: grid; gap: .28rem; font-size: .85rem; color: var(--ink-soft); }
.hw-card .specs li { display: flex; gap: .45rem; line-height: 1.35; }
.hw-card .specs li::before { content: "·"; color: var(--volt); font-weight: 700; }

/* =====================  FOOTER  ===================== */
.site-footer { background: var(--petrol-900); color: var(--on-dark-soft); padding-block: 3rem 2rem; border-top: 1px solid var(--line-dark); }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 2rem 3rem; }
.site-footer .col { min-width: 160px; }
.site-footer h4 { font-family: var(--display); color: var(--on-dark); font-size: .95rem; margin-bottom: .8rem; }
.site-footer a { display: block; color: var(--on-dark-soft); padding: .2rem 0; font-size: .92rem; }
.site-footer a:hover { color: var(--volt-bright); }
.site-footer .legal { width: 100%; border-top: 1px solid var(--line-dark); margin-top: 1.4rem; padding-top: 1.4rem; font-size: .82rem; color: var(--on-dark-faint); }
.site-footer .legal a { display: inline; color: var(--on-dark-soft); }

/* =====================  MANUEL  ===================== */
.doc { background: var(--paper); }
.doc-shell { display: grid; grid-template-columns: 264px minmax(0, 1fr); gap: 2.5rem; align-items: start; }
.doc-toc {
  position: sticky; top: 88px;
  align-self: start;
  max-height: calc(100vh - 110px); overflow: auto;
  font-size: .9rem; padding-right: .5rem;
}
.doc-toc .toc-title { font-family: var(--mono); font-size: .72rem; letter-spacing: .2em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: .8rem; }
.doc-toc a { display: block; color: var(--ink-soft); padding: .32rem .7rem; border-left: 2px solid var(--line); border-radius: 0 6px 6px 0; line-height: 1.35; }
.doc-toc a:hover { color: var(--ink); background: var(--mesh-soft); }
.doc-toc a.active { color: var(--mesh-deep); border-left-color: var(--mesh); background: var(--mesh-soft); font-weight: 600; }

.doc-main { max-width: 820px; min-width: 0; padding-bottom: 4rem; }
.doc-main h2 { font-size: 1.7rem; margin-top: 2.6rem; padding-top: 1rem; scroll-margin-top: 88px; }
.doc-main h2:first-of-type { margin-top: .5rem; }
.doc-main h3 { font-size: 1.18rem; margin-top: 1.8rem; color: var(--petrol-700); }
.doc-main > p { color: var(--ink-soft); }
.doc-lede { font-size: 1.15rem; color: var(--ink-soft); }

.doc-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem 1.4rem; margin: 1.2rem 0; box-shadow: var(--shadow); }
.doc-card > h3:first-child { margin-top: 0; }

/* tableaux de zones de saisie */
.tbl { width: 100%; border-collapse: collapse; margin: 1rem 0 1.4rem; font-size: .92rem; }
.tbl th, .tbl td { text-align: left; padding: .6rem .7rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl thead th { font-family: var(--mono); font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-faint); border-bottom: 2px solid var(--line); }
.tbl tbody tr:hover { background: var(--mesh-soft); }
.tbl td .fid { font-family: var(--mono); font-size: .8rem; color: var(--mesh-deep); }
.tbl td.t-type { white-space: nowrap; color: var(--ink-soft); }

/* badges */
.badge { display: inline-flex; align-items: center; gap: .35rem; font-size: .74rem; font-weight: 600; font-family: var(--mono); letter-spacing: .03em; padding: .18em .6em; border-radius: 999px; white-space: nowrap; }
.badge.now    { background: var(--mesh-soft); color: var(--mesh-deep); }
.badge.reboot { background: rgba(12,26,34,.07); color: var(--ink-soft); }
.badge.warn   { background: var(--amber-soft); color: var(--amber-deep); }
.badge.cond   { background: rgba(229,72,77,.1); color: var(--danger); }

/* encarts d'alerte */
.note { border-radius: 10px; padding: .85rem 1.1rem; margin: 1rem 0; font-size: .93rem; border-left: 4px solid; }
.note p:last-child { margin-bottom: 0; }
.note.info { background: var(--mesh-soft); border-color: var(--mesh); }
.note.warn { background: var(--amber-soft); border-color: var(--amber); }
.note.danger { background: rgba(229,72,77,.08); border-color: var(--danger); }
.note .nt { font-weight: 700; font-family: var(--display); }

/* fil d'ariane */
.crumbs { font-size: .85rem; color: var(--ink-faint); padding-block: 1.4rem .2rem; }
.crumbs a:hover { color: var(--mesh-deep); }
.crumbs span { color: var(--ink); }

/* bandeau de tête de page intérieure */
.page-head { background: var(--petrol-900); color: var(--on-dark); padding-block: clamp(40px,7vw,72px); position: relative; overflow: hidden; }
.page-head::after { content:""; position:absolute; inset:0; background: radial-gradient(700px 300px at 85% 0%, rgba(21,184,155,.18), transparent 60%); }
.page-head .wrap { position: relative; z-index: 1; }
.page-head h1 { font-size: clamp(2rem, 4.4vw, 3.2rem); }
.page-head p { color: var(--on-dark-soft); font-size: 1.12rem; max-width: 60ch; margin-bottom: 0; }
.page-head .hw { font-family: var(--mono); font-size: .8rem; color: var(--mesh); letter-spacing: .04em; margin-bottom: .8rem; }

/* =====================  RESPONSIVE  ===================== */
@media (max-width: 900px) {
  .hero-grid, .split { grid-template-columns: 1fr; }
  .split { gap: 1.6rem; }
  .stats { grid-template-columns: 1fr; gap: 1rem; }
  .doc-shell { grid-template-columns: 1fr; }
  .doc-toc { position: relative; top: 0; max-height: none; margin-bottom: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; background: var(--card); }
  .nav { display: none; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: .15rem; background: var(--petrol-800); padding: .8rem; border-bottom: 1px solid var(--line-dark); }
  .nav.open { display: flex; }
  .nav-toggle { display: inline-flex; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .tbl { font-size: .85rem; }
  .tbl thead { display: none; }
  .tbl, .tbl tbody, .tbl tr, .tbl td { display: block; width: 100%; }
  .tbl tr { border: 1px solid var(--line); border-radius: 10px; margin-bottom: .8rem; padding: .3rem .2rem; }
  .tbl td { border: 0; padding: .3rem .7rem; }
  .tbl td::before { content: attr(data-label); display: block; font-family: var(--mono); font-size: .66rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-faint); }
}

/* =====================  A11Y  ===================== */
:focus-visible { outline: 3px solid var(--mesh); outline-offset: 2px; border-radius: 4px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--volt); color: #fff; padding: .6rem 1rem; z-index: 100; }
.skip:focus { left: 8px; top: 8px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: .001ms !important; transition: none !important; }
}

/* ===== Ruban d'annonce diagonal (coin haut-droit) ===== */
.launch-ribbon{ position:fixed; top:0; right:0; width:180px; height:180px; overflow:hidden; z-index:200; pointer-events:none; }
.launch-ribbon span{ position:absolute; top:42px; right:-46px; width:230px; padding:11px 0; transform:rotate(45deg); background:linear-gradient(90deg,var(--volt) 0%, var(--mesh-deep) 100%); color:#fff; text-align:center; font-family:var(--display); font-weight:700; font-size:.98rem; letter-spacing:.04em; box-shadow:0 8px 20px rgba(0,0,0,.4); }
.launch-ribbon span::before,.launch-ribbon span::after{ content:""; position:absolute; bottom:-5px; border-top:5px solid var(--mesh-deep); }
@media (max-width:900px){ .launch-ribbon{ display:none } }

/* ===== Calculateur d'économies + vitrine ===== */
.calc{ display:grid; grid-template-columns:1.1fr .9fr; gap:2.2rem; align-items:center; margin-top:1.6rem; }
.calc .calc-controls label{ display:block; font-size:.9rem; color:var(--ink-soft); margin:1.1rem 0 .4rem; font-weight:600; }
.calc .calc-controls label:first-child{ margin-top:0; }
.calc .calc-controls output{ color:var(--volt-deep); font-family:var(--mono); font-weight:600; }
.calc input[type=range]{ width:100%; accent-color:var(--volt); height:6px; cursor:pointer; }
.calc .calc-result{ background:linear-gradient(160deg,#0c1a22,var(--volt-deep)); color:#fff; border-radius:var(--radius-lg,16px); padding:1.9rem 1.6rem; text-align:center; }
.calc .calc-result .big{ font-family:var(--display); font-weight:700; font-size:clamp(2.6rem,7vw,3.6rem); line-height:1; color:#fff; }
.calc .calc-result .big.eur{ color:var(--mesh); }
.calc .calc-result .lbl{ font-size:.85rem; color:rgba(255,255,255,.7); margin:.25rem 0 1.4rem; }
.calc .calc-result .pay{ font-size:1rem; border-top:1px solid rgba(255,255,255,.15); padding-top:1.1rem; color:rgba(255,255,255,.85); }
.calc .calc-result .pay strong{ color:#fff; }
.calc-note{ font-size:.8rem; color:var(--ink-faint); margin-top:1.3rem; max-width:70ch; }
.cost-callout{ margin-top:2rem; padding:1.2rem 1.4rem; border-radius:12px; background:var(--mesh-soft); border:1px solid rgba(21,184,155,.25); }
@media (max-width:720px){ .calc{ grid-template-columns:1fr; } }

.section.dark .card-prod h3{ color:var(--ink); }

/* ===== Sélecteur de langue (header) ===== */
.lang-switch{ display:inline-flex; gap:.12rem; align-items:center; margin-left:.5rem; }
.lang-switch a{ font-family:var(--display); font-size:.76rem; font-weight:600; letter-spacing:.05em; padding:.18rem .42rem; border-radius:6px; color:var(--on-dark-faint); text-decoration:none; line-height:1; transition:color .15s, background .15s; }
.lang-switch a:hover{ color:#fff; }
.lang-switch a.active{ color:#fff; background:rgba(255,255,255,.15); }