/* ============================================================
   DESIGN TOKENS — dark mode (default)
============================================================ */
:host {
  --nc-neon: #ff45c8;
  --nc-neon-soft: rgba(255, 69, 200, 0.55);
  --nc-bg: #06060d;
  --nc-surface: rgba(20, 17, 42, 0.6);
  --nc-surface-solid: rgba(10, 8, 22, 0.95);
  --nc-text: #fff;
  --nc-text-muted: rgba(255, 255, 255, 0.65);
  --nc-text-dim: rgba(255, 255, 255, 0.45);
  --nc-border: rgba(255, 255, 255, 0.08);
  --nc-border-strong: rgba(255, 255, 255, 0.15);
  --nc-warning: #ffb13a;
  --nc-warning-soft: rgba(255, 177, 58, 0.4);
  --nc-danger: #ff7a7a;
  --nc-danger-bg: rgba(255, 122, 122, 0.08);
  --nc-danger-soft: rgba(255, 122, 122, 0.3);
  --nc-success: #5ee5a1;
  --nc-clock-bg: rgba(0, 0, 0, 0.4);
  --nc-btn-bg: rgba(255, 255, 255, 0.03);
  --nc-btn-hover-bg: rgba(255, 255, 255, 0.07);
  --nc-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --nc-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', monospace;
}

:host-context(html:not([data-theme='dark'])) {
  --nc-neon: #ff3dbb;
  --nc-neon-soft: rgba(255, 61, 187, 0.55);
  --nc-bg: transparent;
  --nc-surface: rgba(26, 24, 56, 0.72);
  --nc-surface-solid: rgba(26, 24, 56, 0.97);
  --nc-text: #fff;
  --nc-text-muted: rgba(255, 255, 255, 0.72);
  --nc-text-dim: rgba(255, 255, 255, 0.45);
  --nc-border: rgba(255, 255, 255, 0.1);
  --nc-border-strong: rgba(255, 255, 255, 0.18);
  --nc-btn-bg: rgba(255, 255, 255, 0.05);
  --nc-btn-hover-bg: rgba(255, 255, 255, 0.1);
}

/* ============================================================
   SHELL
============================================================ */
.analysis-shell {
  min-height: 100dvh;
  background: var(--nc-bg);
  font-family: var(--nc-sans);
  color: var(--nc-text);
  position: relative;
}

.analysis-shell::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 100%, rgba(74, 41, 98, 0.12), transparent 60%),
    radial-gradient(ellipse 60% 40% at 90% 0%, rgba(41, 74, 98, 0.18), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* ============================================================
   PAGE CONTAINER
============================================================ */
.page {
  position: relative;
  z-index: 1;
  max-width: 1320px;
  margin: 0 auto;
  padding: 28px 32px 60px;
}

/* ============================================================
   BREADCRUMB
============================================================ */
.crumb {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  font-family: var(--nc-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.crumb-link {
  color: var(--nc-text-dim);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.15s;
}

.crumb-link:hover {
  color: var(--nc-neon);
}
.crumb-sep {
  color: var(--nc-text-dim);
  opacity: 0.5;
}
.crumb-current {
  color: var(--nc-text-muted);
}

/* ============================================================
   PAGE HEADER
============================================================ */
.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--nc-border);
}

.page-title h1 {
  margin: 0 0 4px;
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--nc-text);
}

.page-subtitle {
  margin: 0;
  font-family: var(--nc-mono);
  font-size: 11px;
  color: var(--nc-text-dim);
  letter-spacing: 0.06em;
}

/* ============================================================
   ERROR
============================================================ */
.state-error {
  padding: 14px 16px;
  margin-bottom: 20px;
  color: var(--nc-danger);
  background: var(--nc-danger-bg);
  border: 1px solid var(--nc-danger-soft);
  font-size: 13px;
}

/* ============================================================
   INPUT SECTION
============================================================ */
.input-section {
  background: var(--nc-surface);
  border: 1px solid var(--nc-border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 20px;
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.mode-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--nc-border);
  padding-bottom: 12px;
}

.mode-tab {
  background: transparent;
  border: 1px solid transparent;
  color: var(--nc-text-muted);
  font-family: var(--nc-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 6px 14px;
  cursor: pointer;
  transition:
    color 0.15s,
    border-color 0.15s;
}

.mode-tab:hover {
  color: var(--nc-text);
}

.mode-tab.active {
  color: var(--nc-neon);
  border-color: var(--nc-neon-soft);
}

.input-row {
  display: flex;
  gap: 8px;
}

.text-input {
  flex: 1;
  background: var(--nc-clock-bg);
  border: 1px solid var(--nc-border);
  color: var(--nc-text);
  font-family: var(--nc-mono);
  font-size: 12px;
  padding: 9px 12px;
  letter-spacing: 0.04em;
  outline: none;
  transition: border-color 0.15s;
}

.text-input:focus {
  border-color: var(--nc-neon-soft);
}
.text-input::placeholder {
  color: var(--nc-text-dim);
}

.pgn-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.text-area {
  background: var(--nc-clock-bg);
  border: 1px solid var(--nc-border);
  color: var(--nc-text);
  font-family: var(--nc-mono);
  font-size: 12px;
  padding: 10px 12px;
  letter-spacing: 0.04em;
  resize: vertical;
  outline: none;
  transition: border-color 0.15s;
  line-height: 1.5;
}

.text-area:focus {
  border-color: var(--nc-neon-soft);
}
.text-area::placeholder {
  color: var(--nc-text-dim);
}

.depth-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 6px;
  border-top: 1px solid var(--nc-border);
}

.depth-label {
  font-family: var(--nc-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--nc-text-dim);
}

.depth-input {
  width: 56px;
  background: var(--nc-clock-bg);
  border: 1px solid var(--nc-border);
  color: var(--nc-text);
  font-family: var(--nc-mono);
  font-size: 13px;
  padding: 7px 10px;
  outline: none;
  transition: border-color 0.15s;
  text-align: center;
}

.depth-input:focus {
  border-color: var(--nc-neon-soft);
}

/* ============================================================
   BUTTONS
============================================================ */
.btn {
  font-family: var(--nc-sans);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
  padding: 9px 14px;
  cursor: pointer;
  border: 1px solid var(--nc-border-strong);
  background: var(--nc-btn-bg);
  color: var(--nc-text);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition:
    background 0.15s,
    border-color 0.15s;
  flex-shrink: 0;
}

.btn:hover:not([disabled]) {
  background: var(--nc-btn-hover-bg);
  border-color: var(--nc-text-muted);
}

.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--nc-neon) !important;
  color: #fff !important;
  border-color: var(--nc-neon) !important;
  box-shadow: 0 0 14px rgba(255, 69, 200, 0.3);
  font-weight: 700;
}

.btn-primary:hover:not([disabled]) {
  box-shadow: 0 0 20px rgba(255, 69, 200, 0.5);
}

.btn-analyse {
  margin-left: auto;
  background: rgba(255, 69, 200, 0.12);
  color: var(--nc-neon);
  border-color: var(--nc-neon-soft);
}

.btn-analyse:hover:not([disabled]) {
  background: rgba(255, 69, 200, 0.2);
}

/* ============================================================
   MAIN GRID
============================================================ */
.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 28px;
  align-items: start;
}

/* ============================================================
   BOARD COLUMN
============================================================ */
.board-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 520px;
  width: 100%;
  margin: 0 auto;
}

.board-wrap {
  container-type: size;
  aspect-ratio: 1 / 1;
  padding: 10px;
  background: var(--nc-surface);
  border: 1px solid var(--nc-border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow:
    0 8px 40px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(255, 69, 200, 0.06);
}

.nav-bar {
  display: flex;
  gap: 4px;
  justify-content: center;
  padding: 6px 0;
}

.icon-btn {
  background: var(--nc-btn-bg);
  border: 1px solid var(--nc-border);
  color: var(--nc-text-muted);
  padding: 8px 10px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition:
    color 0.15s,
    background 0.15s;
}

.icon-btn:hover {
  color: var(--nc-neon);
  background: var(--nc-btn-hover-bg);
}

/* ============================================================
   SIDE COLUMN
============================================================ */
.side {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.side-card {
  background: var(--nc-surface);
  border: 1px solid var(--nc-border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.side-card-summary {
  list-style: none;
  cursor: pointer;
  padding: 13px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  user-select: none;
}

.side-card-summary::-webkit-details-marker {
  display: none;
}

.side-card-title {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--nc-text-muted);
  font-weight: 600;
  flex: 1;
}

.side-card-meta {
  font-family: var(--nc-mono);
  font-size: 10px;
  color: var(--nc-text-dim);
  letter-spacing: 0.08em;
}

.chev {
  color: var(--nc-text-dim);
  flex-shrink: 0;
  transition: transform 0.2s;
}
.side-card[open] .chev {
  transform: rotate(180deg);
}
.side-card[open] .side-card-summary {
  border-bottom: 1px solid var(--nc-border);
}

.side-card-body {
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.timeline-body {
  padding: 10px 16px;
}

/* ============================================================
   EVAL GRID
============================================================ */
.eval-grid {
  gap: 8px;
}

.eval-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.eval-row--col {
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}

.eval-label {
  font-family: var(--nc-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--nc-text-dim);
  flex-shrink: 0;
}

.eval-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--nc-text);
}

.eval-value.mono {
  font-family: var(--nc-mono);
  font-size: 12px;
}

.eval-value.positive {
  color: var(--nc-success);
}
.eval-value.negative {
  color: var(--nc-danger);
}

.continuation {
  font-size: 11px;
  color: var(--nc-text-muted);
  line-height: 1.6;
  word-break: break-all;
}

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 1100px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .board-col {
    max-width: 560px;
    margin: 0 auto;
  }
}

@media (max-width: 640px) {
  .page {
    padding: 16px 16px 48px;
  }
  .page-title h1 {
    font-size: 20px;
  }
}