/* =====================================================================
   FPM — Business Unit Efficience Énergétique
   Feuille de style globale
   ===================================================================== */

:root {
  --c-primary: #b20b39;
  --c-secondary: #114d77;
  --c-neutral: #88898a;
  --c-bg: #ffffff;
  --c-bg-alt: #f4f5f7;
  --c-border: #e2e4e8;
  --c-text: #1a1a1a;
  --c-text-muted: #555a60;

  --radius: 4px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 2px 6px rgba(0, 0, 0, 0.04);

  --container: 1640px;
  --gap: 20px;

  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  color: var(--c-text);
  background: var(--c-bg);
  font-size: 15px;
  line-height: 1.55;
}

img { max-width: 100%; display: block; }

/* ---------- Layout général ---------- */

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

main {
  padding: 28px 0 56px;
}

section {
  margin-bottom: 36px;
}

/* ---------- Typographie ---------- */

h1, h2, h3, h4 {
  color: var(--c-secondary);
  margin: 0 0 12px 0;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h1 { font-size: 1.7rem; }
h2 { font-size: 1.25rem; border-bottom: 2px solid var(--c-primary); padding-bottom: 6px; display: inline-block; }
h3 { font-size: 1.05rem; color: var(--c-text); }
h4 { font-size: 0.95rem; color: var(--c-secondary); }

p { margin: 0 0 10px 0; }

a { color: var(--c-secondary); text-decoration: none; }
a:hover { color: var(--c-primary); text-decoration: underline; }

strong { color: var(--c-text); font-weight: 600; }

/* ---------- Header ---------- */

.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--c-border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}

.brand img {
  height: 38px;
  width: auto;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-text .b-title {
  font-weight: 600;
  color: var(--c-secondary);
  font-size: 0.95rem;
}

.brand-text .b-sub {
  font-size: 0.75rem;
  color: var(--c-neutral);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.nav-primary {
  display: flex;
  gap: 4px;
}

.nav-primary a {
  padding: 8px 14px;
  border-radius: var(--radius);
  color: var(--c-text);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.nav-primary a:hover {
  background: var(--c-bg-alt);
  color: var(--c-secondary);
}

.nav-primary a.active {
  color: var(--c-primary);
  background: rgba(178, 11, 57, 0.06);
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--c-secondary);
  color: #d6dde4;
  padding: 36px 0 18px;
  font-size: 0.85rem;
  margin-top: 40px;
}

.site-footer a { color: #ffffff; }
.site-footer a:hover { color: #ffffff; text-decoration: underline; }

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-bottom: 24px;
}

.footer-grid h4 {
  color: #ffffff;
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.footer-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-grid li {
  margin-bottom: 6px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 14px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.78rem;
  color: #a9b5c2;
}

/* ---------- Hero / intro ---------- */

.hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  align-items: stretch;
  margin-bottom: 36px;
}

.hero-text {
  background: var(--c-bg-alt);
  border-left: 3px solid var(--c-primary);
  padding: 24px 28px;
  border-radius: var(--radius);
}

.hero-image {
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  min-height: 240px;
}

.hero-image img { object-fit: cover; width: 100%; height: 100%; }

/* ---------- Grilles de cartes (toujours équilibrées) ---------- */

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }

.card {
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.card.clickable { cursor: pointer; transition: border-color 0.15s, box-shadow 0.15s; }
.card.clickable:hover { border-color: var(--c-secondary); box-shadow: var(--shadow); }

.card h3 { margin-top: 0; }

.card-accent { border-top: 3px solid var(--c-primary); }

.card-kicker {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-neutral);
  margin-bottom: 6px;
}

/* Bandeau d'activité (3 activités) */
.activity-card {
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.img-placeholder {
  height: 160px;
  background: var(--c-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-neutral);
  font-size: 0.8rem;
  border-bottom: 1px solid var(--c-border);
  overflow: hidden;
}

.img-placeholder img { object-fit: cover; width: 100%; height: 100%; }

.activity-card .body {
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.activity-card .body h3 { margin: 0; }
.activity-card .body p { margin: 0; color: var(--c-text-muted); font-size: 0.9rem; flex: 1; }

.activity-card .cta {
  display: inline-block;
  padding: 7px 14px;
  background: var(--c-primary);
  color: #ffffff;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
  text-align: center;
  align-self: flex-start;
}

.activity-card .cta:hover { background: #8f092e; color: #ffffff; text-decoration: none; }

/* ---------- Listes compactes ---------- */

.kv {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 4px 16px;
  font-size: 0.88rem;
}

.kv dt { color: var(--c-neutral); font-weight: 500; }
.kv dd { margin: 0; }

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.stat {
  background: var(--c-bg-alt);
  padding: 14px 16px;
  border-radius: var(--radius);
  border-left: 3px solid var(--c-secondary);
}

.stat .val {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--c-secondary);
  line-height: 1.2;
}

.stat .lbl {
  font-size: 0.78rem;
  color: var(--c-text-muted);
  margin-top: 2px;
}

/* ---------- Boutons ---------- */

.btn {
  display: inline-block;
  padding: 8px 16px;
  background: var(--c-secondary);
  color: #ffffff !important;
  border: none;
  border-radius: var(--radius);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover { background: #0d3e60; text-decoration: none; }
.btn.btn-primary { background: var(--c-primary); }
.btn.btn-primary:hover { background: #8f092e; }
.btn.btn-ghost { background: transparent; color: var(--c-secondary) !important; border: 1px solid var(--c-secondary); }
.btn.btn-ghost:hover { background: var(--c-secondary); color: #ffffff !important; }

/* ---------- Tableaux ---------- */

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

table.data th, table.data td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--c-border);
  text-align: left;
}

table.data th {
  background: var(--c-bg-alt);
  font-weight: 600;
  color: var(--c-secondary);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

table.data tbody tr:hover { background: #fafbfc; }

/* ---------- Page audit — prestations ---------- */

.prestation {
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.prestation .code {
  font-family: "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.75rem;
  color: var(--c-primary);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.prestation h3 { margin: 0; font-size: 0.95rem; }
.prestation .desc { color: var(--c-text-muted); font-size: 0.85rem; margin: 0; }
.prestation .meta { font-size: 0.78rem; color: var(--c-neutral); }
.prestation .meta strong { color: var(--c-text); }

/* ---------- Page IoT — fiches techniques ---------- */

.fiche {
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: grid;
  grid-template-columns: 220px 1fr 1fr;
  gap: 0;
}

.fiche .fiche-img {
  background: var(--c-bg-alt);
  border-right: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
}

.fiche .fiche-img img { max-height: 220px; width: auto; object-fit: contain; }

.fiche .fiche-body {
  padding: 16px 18px;
  border-right: 1px solid var(--c-border);
}

.fiche .fiche-pdf {
  background: #2a2d33;
  min-height: 260px;
}

.fiche .fiche-pdf embed,
.fiche .fiche-pdf iframe {
  width: 100%;
  height: 100%;
  min-height: 260px;
  border: none;
}

.fiche h3 { margin-top: 0; }

/* ---------- Calculateur solaire ---------- */

.calc-wrap {
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 20px 24px;
}

.calc-section-title {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-neutral);
  margin: 0 0 10px;
  font-weight: 600;
}

/* grille bar-chart + tableau */
.calc-input-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 24px;
  align-items: stretch;
}

.chart-panel {
  position: relative;
  min-height: 360px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 12px 14px 4px;
  background: #ffffff;
}

.chart-panel canvas {
  width: 100%;
  height: 340px;
  display: block;
}

.table-panel {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 6px 0;
  max-height: 360px;
  overflow-y: auto;
}

.hour-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.hour-table th, .hour-table td {
  padding: 3px 8px;
  border-bottom: 1px solid var(--c-border);
  text-align: left;
}

.hour-table th {
  background: var(--c-bg-alt);
  font-weight: 600;
  position: sticky;
  top: 0;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--c-secondary);
}

.hour-table input[type="number"] {
  width: 70px;
  padding: 3px 6px;
  border: 1px solid var(--c-border);
  border-radius: 3px;
  font-size: 0.82rem;
  font-family: inherit;
  text-align: right;
}

/* Masquer les flèches des inputs number */
.hour-table input[type=number]::-webkit-outer-spin-button,
.hour-table input[type=number]::-webkit-inner-spin-button,
input.no-spin[type=number]::-webkit-outer-spin-button,
input.no-spin[type=number]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.hour-table input[type=number],
input.no-spin[type=number] { -moz-appearance: textfield; }

/* Paramètres généraux */
.calc-params {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 18px;
}

.param-block {
  background: var(--c-bg-alt);
  border-radius: var(--radius);
  padding: 12px 16px;
}

.param-block label {
  display: block;
  font-size: 0.78rem;
  color: var(--c-neutral);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
  font-weight: 600;
}

.param-block .row {
  display: flex;
  gap: 10px;
  align-items: center;
}

.param-block input[type="range"] {
  flex: 1;
  accent-color: var(--c-primary);
}

.param-block input[type="number"] {
  width: 90px;
  padding: 5px 8px;
  border: 1px solid var(--c-border);
  border-radius: 3px;
  font-family: inherit;
  text-align: right;
}

/* Résultats */
.calc-results {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.result-card {
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-primary);
  border-radius: var(--radius);
  padding: 14px 18px;
}

.result-card .lbl {
  font-size: 0.75rem;
  color: var(--c-neutral);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.result-card .val {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--c-secondary);
}

.result-card .sub {
  font-size: 0.78rem;
  color: var(--c-text-muted);
  margin-top: 2px;
}

.result-summary {
  margin-top: 16px;
  padding: 14px 18px;
  background: var(--c-bg-alt);
  border-left: 3px solid var(--c-secondary);
  border-radius: var(--radius);
  font-size: 0.9rem;
}

.result-summary.warning {
  border-left-color: var(--c-primary);
  background: rgba(178, 11, 57, 0.04);
}

/* ---------- Boutons scénario (groupe segmenté) ---------- */

.scenario-buttons {
  display: flex;
  border: 1px solid var(--c-border);
  border-radius: 3px;
  overflow: hidden;
  width: 100%;
  background: #ffffff;
}

.scenario-buttons button {
  flex: 1;
  padding: 7px 6px;
  background: #ffffff;
  border: none;
  border-right: 1px solid var(--c-border);
  font-family: inherit;
  font-size: 0.8rem;
  color: var(--c-text-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  text-align: center;
  white-space: nowrap;
}

.scenario-buttons button:last-child {
  border-right: none;
}

.scenario-buttons button:hover:not(.active) {
  background: var(--c-bg-alt);
  color: var(--c-secondary);
}

.scenario-buttons button.active {
  background: var(--c-primary);
  color: #ffffff;
  font-weight: 600;
}

.scenario-buttons button:focus-visible {
  outline: 2px solid var(--c-secondary);
  outline-offset: -2px;
}

/* ---------- Interrupteur (toggle) batterie ---------- */

.toggle-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #cfd2d7;
  border-radius: 24px;
  transition: background-color 0.2s;
}

.toggle-slider::before {
  content: "";
  position: absolute;
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: #ffffff;
  border-radius: 50%;
  transition: transform 0.2s;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.toggle-switch input:checked + .toggle-slider {
  background-color: var(--c-primary);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(20px);
}

.toggle-switch input:focus-visible + .toggle-slider {
  box-shadow: 0 0 0 2px rgba(17, 77, 119, 0.3);
}

/* ---------- Bandeaux d'alerte résultats ---------- */

.result-banners {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 18px;
}

.result-banners:empty {
  display: none;
}

.banner {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  line-height: 1.5;
  border-left: 4px solid transparent;
}

.banner strong {
  font-weight: 600;
}

.banner-danger {
  background: rgba(178, 11, 57, 0.08);
  border-left-color: var(--c-primary);
  color: #6a0622;
}

.banner-danger strong {
  color: var(--c-primary);
}

.banner-warning {
  background: rgba(201, 122, 0, 0.08);
  border-left-color: #c97a00;
  color: #7a4a00;
}

.banner-warning strong {
  color: #a26200;
}

.banner-info {
  background: rgba(17, 77, 119, 0.06);
  border-left-color: var(--c-secondary);
  color: var(--c-text-muted);
}

.banner-info strong {
  color: var(--c-secondary);
}

/* ---------- Utilitaires ---------- */

.muted { color: var(--c-text-muted); }
.small { font-size: 0.82rem; }
.mb-0 { margin-bottom: 0; }
.mt-12 { margin-top: 12px; }
.mt-24 { margin-top: 24px; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  background: var(--c-bg-alt);
  border-radius: 10px;
  font-size: 0.72rem;
  color: var(--c-secondary);
  font-weight: 500;
  margin-right: 4px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 16px;
  gap: 20px;
}

.section-header p {
  color: var(--c-text-muted);
  font-size: 0.9rem;
  max-width: 720px;
  margin: 0;
}

/* ---------- Logos clients ---------- */

.client-strip {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}

.client-strip .chip {
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  padding: 10px 12px;
  border-radius: var(--radius);
  font-size: 0.82rem;
  text-align: center;
  color: var(--c-text-muted);
}

/* ---------- Responsive ---------- */

@media (max-width: 1200px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .calc-results { grid-template-columns: repeat(2, 1fr); }
  .client-strip { grid-template-columns: repeat(4, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .calc-input-grid { grid-template-columns: 1fr; }
  .calc-params { grid-template-columns: 1fr; }
  .fiche { grid-template-columns: 1fr; }
  .fiche .fiche-img { border-right: none; border-bottom: 1px solid var(--c-border); }
  .fiche .fiche-body { border-right: none; border-bottom: 1px solid var(--c-border); }
}

@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .client-strip { grid-template-columns: repeat(2, 1fr); }
  .site-header .container { height: auto; flex-direction: column; padding: 10px 16px; gap: 10px; }
  .nav-primary { flex-wrap: wrap; justify-content: center; }
}