/* ============================================================
   scroll-sections.css
   ============================================================ */

:root {
  --ss-bg: #080c14;
  --ss-surface: #0f1523;
  --ss-border: rgba(255, 255, 255, 0.07);
  --ss-text: #e8edf5;
  --ss-muted: rgba(232, 237, 245, 0.75);
  --ss-accent: #3b82f6;
  --ss-accent2: #06b6d4;
  --ss-success: #10b981;
  --ss-warning: #fbbf24;
  --ss-danger: #f43f5e;
  --ss-font-mono: "DM Mono", monospace;
  --ss-font-body: "Sora", sans-serif;
  --nav-h: 64px;
}

/* ── Body ── */
body:has(.ss-root) {
  overflow: hidden;
  height: 100vh;
  margin: 0;
  padding: 0;
}

/* ── Conteneur ── */
.ss-root {
  height: calc(100vh - var(--nav-h));
  overflow-y: scroll;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
  background: var(--ss-bg);
  color: var(--ss-text);
  font-family: var(--ss-font-body);
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  bottom: 0;
}
/* ── Sections ── */
.ss-section {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 2rem 1.5rem;
  border-bottom: 1px solid var(--ss-border);
  overflow: hidden;
  box-sizing: border-box;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  width: 100%;
}

.ss-section:nth-child(odd) {
  background: var(--ss-bg);
}
.ss-section:nth-child(even) {
  background: var(--ss-surface);
}

/* ── Dots ── */
.ss-progress {
  position: fixed;
  right: 30px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 300;
}
.ss-dot {
  width: 8px;
  height: 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 0;
}
.ss-dot.is-active {
  background: var(--ss-accent);
  height: 24px;
}
.ss-dot:hover:not(.is-active) {
  background: rgba(255, 255, 255, 0.5);
}

/* ── Flèches ── */
.ss-arrow {
  position: fixed;
  right: 16px;
  z-index: 300;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s ease;
}
.ss-arrow:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}
.ss-arrow--up {
  bottom: calc(50% + 100px);
}
.ss-arrow--down {
  bottom: calc(50% - 140px);
}
.ss-arrow .material-icons-round {
  font-size: 18px;
}

/* ── Layouts ── */
.ss-layout {
  width: 100%;
  max-width: 1280px;
  display: flex;
  gap: 3rem;
  align-items: center;
  box-sizing: border-box;
  min-width: 0;
}
.ss-layout--centered {
  justify-content: center;
  gap: 4rem;
}
.ss-layout--split {
  justify-content: space-between;
}
.ss-layout--full {
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
  max-width: 1100px;
}
.ss-layout--demo {
  gap: 2rem;
  align-items: center;
  height: 100%;
  max-width: 1200px;
}

.ss-text-block {
  flex: 0 0 420px;
  max-width: 420px;
  position: relative;
}
.ss-text-block--small {
  flex: 0 0 100%;
  max-width: 100%;
}

.ss-viz-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 340px;
}

/* ── Typographie ── */
.ss-eyebrow {
  font-family: var(--ss-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ss-accent);
  margin-bottom: 0.75rem;
}
.ss-h1 {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  color: var(--ss-text);
}
.ss-h1 em {
  font-style: normal;
  color: var(--ss-accent2);
}
.ss-h2 {
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
  color: var(--ss-text);
}
.ss-lead {
  font-size: 1.1rem;
  line-height: 1.65;
  color: rgba(232, 237, 245, 0.8);
  font-weight: 300;
  margin-bottom: 1rem;
}
.ss-body {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--ss-muted);
  margin-bottom: 0.85rem;
}
.ss-body strong {
  color: var(--ss-text);
  font-weight: 600;
}
.ss-body em {
  color: var(--ss-accent2);
  font-style: normal;
}

.ss-caption {
  font-family: var(--ss-font-mono);
  font-size: 0.68rem;
  color: rgba(255, 255, 255, 0.3);
  margin-top: 0.5rem;
}
.ss-caption--center {
  text-align: center;
}

.ss-formula {
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: 8px;
  padding: 0.75rem 1.25rem;
  font-family: var(--ss-font-mono);
  font-size: 0.9rem;
  color: var(--ss-accent);
  margin: 1rem 0;
  letter-spacing: 0.02em;
}

/* ── Listes ── */
.ss-steps {
  padding-left: 1.25rem;
  margin: 0.75rem 0;
}
.ss-steps li {
  font-size: 0.875rem;
  color: var(--ss-muted);
  line-height: 1.7;
  margin-bottom: 0.35rem;
}
.ss-steps li strong {
  color: var(--ss-text);
}

.ss-feature-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.ss-feature-list li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.875rem;
  color: var(--ss-muted);
}
.ss-feature-list li .material-icons-round {
  font-size: 16px;
  color: var(--ss-accent);
}

/* ── Badges ── */
.ss-badge {
  font-size: 0.6rem;
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  vertical-align: middle;
  font-family: var(--ss-font-mono);
}
.ss-badge--low {
  background: rgba(244, 63, 94, 0.15);
  color: var(--ss-danger);
}
.ss-badge--mid {
  background: rgba(251, 191, 36, 0.15);
  color: var(--ss-warning);
}
.ss-badge--high {
  background: rgba(16, 185, 129, 0.15);
  color: var(--ss-success);
}

/* ── Layer tags ── */
.ss-tag {
  font-family: var(--ss-font-mono);
  font-size: 0.65rem;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  flex-shrink: 0;
}
.ss-tag--blue {
  background: rgba(59, 130, 246, 0.15);
  color: #3b82f6;
  border: 1px solid rgba(59, 130, 246, 0.3);
}
.ss-tag--purple {
  background: rgba(139, 92, 246, 0.15);
  color: #8b5cf6;
  border: 1px solid rgba(139, 92, 246, 0.3);
}
.ss-tag--green {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.3);
}
.ss-tag--red {
  background: rgba(244, 63, 94, 0.15);
  color: #f43f5e;
  border: 1px solid rgba(244, 63, 94, 0.3);
}
.ss-tag--yellow {
  background: rgba(251, 191, 36, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(251, 191, 36, 0.3);
}

/* ── Tableau ── */
.ss-table-wrap {
  width: 100%;
  overflow-x: auto;
}
.ss-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  font-family: var(--ss-font-mono);
}
.ss-table th {
  padding: 0.65rem 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(59, 130, 246, 0.3);
  color: var(--ss-accent);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  font-weight: 500;
  white-space: nowrap;
}
.ss-table th .material-icons-round {
  font-size: 13px;
  vertical-align: middle;
  margin-right: 4px;
}
.ss-table td {
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--ss-border);
  color: var(--ss-muted);
  vertical-align: middle;
}
.ss-table tr:hover td {
  background: rgba(255, 255, 255, 0.03);
  color: var(--ss-text);
}
.ss-table-target {
  color: var(--ss-success) !important;
  font-weight: 600;
}

/* ── Box générique ── */
.ss-box {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--ss-border);
  border-radius: 10px;
  padding: 1.25rem;
  margin: 1.25rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.ss-box--sm {
  padding: 1rem 1.25rem;
  margin-top: 1rem;
  gap: 0.5rem;
}
.ss-box--accent {
  background: rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.25);
}

.ss-box-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: var(--ss-muted);
}
.ss-box-row--mono {
  font-family: var(--ss-font-mono);
  font-size: 0.78rem;
}
.ss-box-row strong {
  color: var(--ss-success);
}

/* ── Bouton principal ── */
.ss-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--ss-font-mono);
  font-size: 0.8rem;
  padding: 0.55rem 1.1rem;
  border-radius: 8px;
  background: var(--ss-accent);
  color: #fff;
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
}
.ss-btn:hover {
  background: #2563eb;
  transform: translateY(-1px);
}
.ss-btn:disabled {
  opacity: 0.5;
  cursor: default;
  transform: none;
}
.ss-btn .material-icons-round {
  font-size: 16px;
}
.ss-btn--success {
  background: var(--ss-success);
}
.ss-btn--success:hover {
  background: #059669;
}

/* ── Bouton secondaire ── */
.ss-more-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--ss-font-mono);
  font-size: 0.72rem;
  color: var(--ss-accent);
  background: transparent;
  border: 1px solid rgba(59, 130, 246, 0.3);
  padding: 0.3rem 0.75rem;
  border-radius: 6px;
  cursor: pointer;
  margin: 0.5rem 0;
  transition: all 0.2s ease;
}
.ss-more-btn:hover {
  background: rgba(59, 130, 246, 0.1);
}

/* ── Counter ── */
.ss-counter {
  font-family: var(--ss-font-mono);
  font-size: 0.8rem;
  color: var(--ss-muted);
}
.ss-counter strong {
  color: var(--ss-text);
}

/* ── Controls row ── */
.ss-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.25rem;
}

/* ── Sliders ── */
.ss-sliders {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 1.25rem 0;
}
.ss-slider-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.ss-slider-row label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--ss-font-mono);
  font-size: 0.72rem;
  color: var(--ss-muted);
  flex: 0 0 110px;
  white-space: nowrap;
}
.ss-slider-row label .material-icons-round {
  font-size: 14px;
  color: var(--ss-accent);
}
.ss-slider-row input[type="range"] {
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.1);
  outline: none;
  border: none;
  cursor: pointer;
  accent-color: var(--ss-accent);
}
.ss-slider-row output {
  font-family: var(--ss-font-mono);
  font-size: 0.75rem;
  color: var(--ss-text);
  flex: 0 0 80px;
  text-align: right;
}

/* ── Résultat live ── */
.ss-live-result {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: 10px;
  padding: 1rem 1.5rem;
  margin-top: 0.5rem;
}
.ss-live-result span {
  font-family: var(--ss-font-mono);
  font-size: 0.78rem;
  color: var(--ss-muted);
}
.ss-live-result strong {
  font-family: var(--ss-font-mono);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--ss-success);
  letter-spacing: -0.02em;
}

/* ── Barre de progression ── */
.ss-progress-bar {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.06);
  position: relative;
  overflow: hidden;
}
.ss-progress-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--ss-accent), var(--ss-success));
  transition: width 0.4s ease;
}

/* ── Evolution rows ── */
.ss-evolution-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.3rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-family: var(--ss-font-mono);
  font-size: 0.75rem;
}
.ss-evolution-row:last-child {
  border-bottom: none;
}

.ss-evolution-bar {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.06);
  position: relative;
  overflow: hidden;
}

.ss-evolution-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, #3b82f6, #10b981);
  transition: width 0.4s ease;
}

.ss-evolution-label {
  color: rgba(255, 255, 255, 0.6);
  flex: 0 0 80px;
}
.ss-evolution-value {
  color: var(--ss-success);
  flex: 0 0 70px;
  text-align: right;
}
.ss-evolution-sub {
  color: rgba(255, 255, 255, 0.35);
  flex: 0 0 70px;
  text-align: right;
  font-size: 0.68rem;
}

/* ── Heatmap ── */
.ss-heatmap {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

@media (max-width: 768px) {
  .ss-heatmap {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

.ss-result-item {
  font-family: var(--nn-font-mono);
  font-size: 0.78rem;
  color: var(--nn-muted);
  display: flex;
  justify-content: space-between;
}

.ss-result-item strong {
  color: var(--nn-node-out);
}

.ss-heatmap-block {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--ss-border);
  border-radius: 8px;
  padding: 0.6rem;
}
.ss-heatmap-title {
  font-family: var(--ss-font-mono);
  font-size: 0.65rem;
  color: rgba(255, 255, 255, 0.65);
  letter-spacing: 0.08em;
  margin-bottom: 0.4rem;
}
.ss-heatmap-grid {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.ss-heatmap-row {
  display: flex;
  gap: 2px;
}
.ss-heatmap-cell {
  flex: 1;
  height: 18px;
  border-radius: 3px;
  font-size: 12px;
  padding: 5px;
  display: flex;
  align-items: center;
  transition: background 0.2s ease;
}

/* ── Modale ── */
.ss-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 500;
  align-items: center;
  justify-content: center;
}
.ss-modal.is-open {
  display: flex;
}
.ss-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
}
.ss-modal-box {
  position: relative;
  background: #0f1523;
  border-radius: 16px;
  padding: 2rem;
  max-width: 560px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  z-index: 1;
}
.ss-modal-title {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
  color: var(--ss-text);
}
.ss-modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: transparent;
  border: none;
  color: var(--ss-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  transition: color 0.2s ease;
}
.ss-modal-close:hover {
  color: var(--ss-text);
}
.ss-modal-close .material-icons-round {
  font-size: 20px;
}

/* ── Hint ── */
.ss-hint {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  font-style: italic;
  color: rgba(255, 255, 255, 0.3);
  margin-bottom: 0.75rem;
}
.ss-hint .material-icons-round {
  font-size: 13px;
  flex-shrink: 0;
}

/* ── Scroll hint ── */
.ss-scroll-hint {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.75rem;
  font-family: var(--ss-font-mono);
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.25);
  animation: ssBounce 2s ease-in-out infinite;
}
.ss-scroll-hint .material-icons-round {
  font-size: 16px;
}

.ss-img-frame {
  position: relative;
  width: 100%;
  max-width: 620px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--ss-border);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
}

.ss-img-frame img {
  width: 100%;
  object-fit: cover;
  display: block;
  height: auto;
  filter: grayscale(20%) contrast(1.05);
  transition:
    transform 0.4s ease,
    filter 0.4s ease;
}

.ss-img-frame:hover img {
  transform: scale(1.04);
  filter: grayscale(0%) contrast(1.1);
}

.ss-img-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.75rem 1rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.85), transparent);
  font-family: var(--ss-font-mono);
  font-size: 0.68rem;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 0.04em;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.ss-img-frame:hover .ss-img-caption {
  transform: translateY(0);
}

@keyframes ssBounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(5px);
  }
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .ss-progress,
  .ss-arrow {
    display: none;
  }
  .ss-root {
    scroll-snap-type: none;
    overflow-y: auto;
  }
  .ss-section {
    height: auto;
    min-height: calc(100vh - var(--nav-h));
  }
  .ss-layout--split,
  .ss-layout--demo {
    flex-direction: column;
    gap: 1.5rem;
  }
  .ss-text-block {
    flex: 0 0 auto;
    max-width: 100%;
  }
  .ss-demo-controls {
    flex: 0 0 auto;
    max-width: 100%;
  }
  .ss-img-frame img {
    height: 280px;
  }
}