/* ── Landing & multi-page layout ────────────────────────────────────────────── */

/* ─── Back link ─────────────────────────────────────────────────────────────── */
.back-link {
  color: var(--violet);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  opacity: .8;
  transition: opacity .15s;
}
.back-link:hover { opacity: 1; }

/* ─── Landing body ───────────────────────────────────────────────────────────── */
.landing-body {
  background: var(--bg);
}

/* ─── Hero ───────────────────────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, #6366f1 0%, #818cf8 50%, #a5b4fc 100%);
  padding: 72px 24px 80px;
  text-align: center;
}
.hero-inner {
  max-width: 640px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,.25);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero-title {
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin: 0 0 16px;
}
.hero-sub {
  font-size: 17px;
  color: rgba(255,255,255,.88);
  line-height: 1.6;
  margin: 0 0 32px;
}
.btn-hero {
  display: inline-block;
  background: #fff;
  color: var(--violet);
  font-size: 16px;
  font-weight: 700;
  padding: 14px 36px;
  border-radius: 10px;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(99,102,241,.3);
  transition: transform .15s, box-shadow .15s;
}
.btn-hero:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(99,102,241,.38);
}
.hero-note {
  margin-top: 16px;
  font-size: 12px;
  color: rgba(255,255,255,.65);
}

/* ─── Landing sections ───────────────────────────────────────────────────────── */
.landing-section {
  padding: 56px 24px;
  background: var(--bg);
}
.landing-section-alt {
  background: #fff;
}
.landing-container {
  max-width: 960px;
  margin: 0 auto;
}
.section-heading {
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  text-align: center;
  margin: 0 0 36px;
}

/* ─── Steps grid ─────────────────────────────────────────────────────────────── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.step-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 24px;
  text-align: center;
}
.landing-section-alt .step-card {
  background: var(--bg);
}
.step-card-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--violet);
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.step-card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.step-card-desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.55;
  margin: 0;
}

/* ─── Features grid ──────────────────────────────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}
.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 18px;
}
.landing-section-alt .feature-card {
  background: #fff;
}
.feature-icon {
  font-size: 24px;
  margin-bottom: 10px;
}
.feature-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.feature-desc {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
  margin: 0;
}

/* ─── Landing CTA ────────────────────────────────────────────────────────────── */
.landing-cta {
  background: linear-gradient(135deg, #6366f1 0%, #818cf8 100%);
  padding: 60px 24px;
}
.cta-title {
  font-size: 26px;
  font-weight: 800;
  color: #fff;
  margin: 0 0 10px;
}
.cta-sub {
  font-size: 15px;
  color: rgba(255,255,255,.8);
  margin: 0 0 28px;
}
.landing-cta .btn-hero {
  background: #fff;
  color: var(--violet);
}

/* ─── Landing footer ─────────────────────────────────────────────────────────── */
.landing-footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 24px;
}
.landing-footer p {
  font-size: 12px;
  color: var(--muted);
  text-align: center;
  margin: 0;
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ─── Page container (parametres) ───────────────────────────────────────────── */
.page-container {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}
.page-header {
  margin-bottom: 28px;
}
.page-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  margin: 0 0 6px;
}
.page-subtitle {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
}

/* ─── Param cards ────────────────────────────────────────────────────────────── */
.param-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 16px;
  box-shadow: 0 1px 4px rgba(0,0,0,.05);
}
.param-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--violet);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.step-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}
.step-hint {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 16px;
  line-height: 1.5;
}

/* ─── Advanced block ─────────────────────────────────────────────────────────── */
.advanced-block {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  margin-bottom: 16px;
  overflow: hidden;
}
.advanced-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 24px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.advanced-toggle::-webkit-details-marker { display: none; }
.advanced-toggle::after {
  content: "▸";
  margin-left: auto;
  font-size: 12px;
  color: var(--muted);
  transition: transform .2s;
}
details[open] .advanced-toggle::after {
  transform: rotate(90deg);
}
.advanced-body {
  padding: 0 24px 20px;
  border-top: 1px solid var(--border);
}

/* ─── Launch row ─────────────────────────────────────────────────────────────── */
.launch-row {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
  margin-top: 8px;
}
.btn-launch-lg {
  font-size: 17px;
  padding: 16px 32px;
  border-radius: 12px;
  font-weight: 700;
}

/* ─── Alerts ─────────────────────────────────────────────────────────────────── */
.alert {
  display: none;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
}
.alert-error {
  background: #fef2f2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}
.alert-info {
  background: #f0fdf4;
  color: #166534;
  border: 1px solid #bbf7d0;
}

/* ─── Geo checks ─────────────────────────────────────────────────────────────── */
.geo-checks {
  margin-top: 16px;
}
.geo-checks-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 10px;
}
.checks-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.check-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
}

/* ─── Sliders group ──────────────────────────────────────────────────────────── */
.sliders-group {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 16px;
}
.slider-val {
  font-weight: 700;
  color: var(--violet);
}

/* ─── Mode tabs ──────────────────────────────────────────────────────────────── */
.mode-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.mode-tab {
  flex: 1;
  min-width: 100px;
  padding: 12px 10px;
  border-radius: 10px;
  border: 2px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  line-height: 1.4;
  transition: border-color .15s, background .15s, color .15s;
}
.mode-tab.active,
.mode-tab:hover {
  border-color: var(--violet);
  background: #ede9fe;
  color: var(--violet);
}

/* ─── Field helpers ──────────────────────────────────────────────────────────── */
.field-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 500px) {
  .field-2col { grid-template-columns: 1fr; }
  .mode-tabs { gap: 6px; }
  .features-grid { grid-template-columns: 1fr 1fr; }
}
.label-opt {
  font-size: 11px;
  color: var(--muted);
  font-weight: 400;
}

/* ─── Results area (resultats page) ──────────────────────────────────────────── */
.results-area {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 64px;
}

/* ─── KPIs bar ───────────────────────────────────────────────────────────────── */
.kpis-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 24px;
}
@media (max-width: 600px) {
  .kpis-bar { grid-template-columns: 1fr; }
}
.kpi-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 20px;
  text-align: center;
  box-shadow: 0 1px 4px rgba(0,0,0,.05);
}
.kpi-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 6px;
}
.kpi-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--violet);
}
.kpi-count .kpi-value { color: var(--text); }
.kpi-score .kpi-value { color: var(--violet); }
.kpi-dept  .kpi-value { font-size: 20px; color: #059669; }

/* ─── Results + map grid ──────────────────────────────────────────────────────── */
.results-map-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: start;
}
@media (max-width: 768px) {
  .results-map-grid { grid-template-columns: 1fr; }
}
.section-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .07em;
  margin: 0 0 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}