:root {
  --bg-0: #0d0f12;
  --bg-1: #13161b;
  --bg-2: #1a1e25;
  --bg-3: #22272f;
  --bg-4: #2a3040;
  --border: #2e3545;
  --text-0: #f0ead8;
  --text-1: #b8b0a0;
  --text-2: #6e6860;
  --accent: #c9a84c;
  --accent-dim: #7a6330;
  --accent-glow: rgba(201, 168, 76, 0.15);
  --white-sq: #e8d5a3;
  --black-sq: #5c7a4a;
  --white-sq-hi: #f4e06a;
  --black-sq-hi: #9dc46e;
  --eval-white: #f0ead8;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg-0);
  color: var(--text-0);
  font-family: "DM Sans", sans-serif;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* ─── LOADING OVERLAY ─── */
#loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13, 15, 18, 0.95);
  z-index: 9999;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(5px);
}

.golden-horse {
  font-size: 90px;
  background: linear-gradient(to bottom, #f0ead8 0%, #c9a84c 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: goldPulse 1.2s infinite alternate;
}

@keyframes goldPulse {
  0% {
    filter: drop-shadow(0 0 5px rgba(201, 168, 76, 0.2));
    transform: scale(1);
  }
  100% {
    filter: drop-shadow(0 0 35px rgba(201, 168, 76, 0.9));
    transform: scale(1.08);
  }
}

.loading-msg {
  margin-top: 20px;
  font-family: "JetBrains Mono", monospace;
  font-size: 14px;
  color: var(--accent);
  letter-spacing: 0.05em;
  text-align: center;
}
.loading-sub-msg {
  margin-top: 8px;
  font-size: 11px;
  color: var(--text-2);
  text-align: center;
  max-width: 80%;
}

/* ─── HEADER ─── */
header {
  height: 70px;
  padding: 0 32px;
  display: flex;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-1);
  position: relative;
  z-index: 10;
  flex-shrink: 0;
}

.logo-icon {
  font-size: 28px;
  line-height: 1;
}
.logo-text {
  font-family: "Playfair Display", serif;
  font-size: 22px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.02em;
}
.logo-sub {
  font-size: 11px;
  color: var(--text-2);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-left: 2px;
  margin-top: 1px;
}

.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-btn {
  background: var(--bg-3);
  border: 1px solid var(--border);
  color: var(--text-1);
  width: 36px;
  height: 36px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}
.header-btn:hover {
  background: var(--bg-4);
  color: var(--text-0);
  border-color: var(--accent-dim);
}

/* ─── PROFESSIONAL LANDING PAGE ─── */
#landing-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  min-height: calc(100vh - 70px);
  height: auto;
  width: 100%;
  position: relative;
  z-index: 1;
  overflow-y: auto;
  padding: 8vh 20px 20px 20px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      rgba(201, 168, 76, 0.03) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(201, 168, 76, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  background-position: center top;
  mask-image: linear-gradient(to bottom, black 20%, transparent 80%);
  -webkit-mask-image: linear-gradient(to bottom, black 20%, transparent 80%);
  z-index: 0;
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(
    circle,
    rgba(201, 168, 76, 0.06) 0%,
    transparent 60%
  );
  pointer-events: none;
  z-index: 0;
}

.splash-content {
  text-align: center;
  z-index: 2;
  margin-bottom: 35px;
  position: relative;
}

.splash-title {
  font-family: "Playfair Display", serif;
  font-size: clamp(38px, 6vw, 54px);
  color: var(--text-0);
  margin-bottom: 16px;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.text-gradient {
  background: linear-gradient(to right, #e8d5a3, #c9a84c);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.splash-sub {
  font-size: clamp(14px, 3vw, 16px);
  color: var(--text-1);
  max-width: 550px;
  line-height: 1.6;
  margin: 0 auto;
  font-weight: 300;
}

.feature-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 25px;
  max-width: 600px;
}
.feature-tag {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 8px 16px;
  border-radius: 30px;
  font-size: 11px;
  color: var(--text-0);
  letter-spacing: 0.05em;
  transition: border-color 0.3s;
}
.feature-tag:hover {
  border-color: rgba(201, 168, 76, 0.4);
}

.settings-tip {
  margin-top: 20px;
  font-size: 12px;
  color: var(--text-2);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.input-panel {
  background: rgba(26, 30, 37, 0.7);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  padding: 24px;
  border-radius: 16px;
  z-index: 5;
  width: 100%;
  max-width: 600px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  gap: 15px;
  position: relative;
}
.input-section-label {
  font-size: 11px;
  color: var(--text-1);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
}

textarea {
  width: 100%;
  background: var(--bg-0);
  border: 1px solid var(--border);
  color: var(--text-0);
  padding: 16px;
  border-radius: 10px;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  line-height: 1.6;
  height: 130px;
  resize: vertical;
  outline: none;
  transition: all 0.2s;
  box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.2);
}
textarea:focus {
  border-color: var(--accent);
  background: #111418;
}

.action-buttons {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, #d4b060, #b8922e);
  color: var(--bg-0);
  border: none;
  padding: 15px 24px;
  border-radius: 10px;
  font-family: "DM Sans", sans-serif;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
  box-shadow: 0 4px 15px rgba(201, 168, 76, 0.2);
}
.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(201, 168, 76, 0.3);
}
.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
  filter: none;
}

.btn-secondary {
  background: var(--bg-3);
  color: var(--text-0);
  border: 1px solid var(--border);
  padding: 15px 20px;
  border-radius: 10px;
  font-family: "DM Sans", sans-serif;
  font-weight: 500;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
  width: 100%;
}
.btn-secondary:hover {
  background: var(--bg-4);
  border-color: var(--text-2);
}

.copyright-footer {
  margin-top: auto;
  padding: 30px 0 20px;
  width: 100%;
  text-align: center;
  color: var(--text-2);
  font-family: "DM Sans", sans-serif;
  font-size: 11px;
  letter-spacing: 0.05em;
  z-index: 10;
  position: relative;
  line-height: 1.5;
}

/* ─── MAIN LAYOUT ─── */
#analyzer {
  display: none;
  height: calc(100vh - 70px);
  width: 100%;
}
#analyzer.visible {
  display: block;
}
.main-layout {
  display: grid;
  grid-template-columns: 280px 1fr 300px;
  height: 100%;
  width: 100%;
  position: relative;
  z-index: 2;
}

/* ─── LEFT PANEL ─── */
.left-panel {
  background: var(--bg-1);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.panel-header {
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  font-family: "Playfair Display", serif;
  font-size: 13px;
  color: var(--text-1);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
}

/* TOOLBAR BUTTONS */
.header-tools {
  display: flex;
  align-items: center;
  gap: 4px;
}
.header-divider {
  width: 1px;
  height: 16px;
  background: var(--border);
  margin: 0 4px;
}
.tool-btn {
  background: transparent;
  border: none;
  color: var(--text-2);
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.tool-btn:hover {
  background: var(--bg-3);
  color: var(--text-0);
}
.tool-btn.danger:hover {
  background: rgba(211, 47, 47, 0.15);
  color: #d32f2f;
}
.tool-btn svg {
  width: 16px;
  height: 16px;
}

.summary-section {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.player-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
}
.player-piece {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.player-piece.white {
  background: #f5f0e8;
  color: #0d0f12;
}
.player-piece.black {
  background: #2a2a2a;
  border: 1px solid var(--border);
}
.player-info {
  flex: 1;
}
.player-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-0);
  display: inline-block;
}
.material-diff {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--text-2);
  margin-left: 6px;
}
.player-rating {
  font-size: 11px;
  color: var(--text-2);
  font-family: "JetBrains Mono", monospace;
}
.accuracy-badge {
  font-family: "JetBrains Mono", monospace;
  font-size: 16px;
  font-weight: 500;
  color: var(--accent);
}

.opening-tag {
  margin-top: 10px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 11px;
  color: var(--text-1);
  line-height: 1.4;
}
.opening-tag span {
  display: block;
  font-size: 10px;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 3px;
}

.class-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.class-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-2);
}
.class-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.class-count {
  font-family: "JetBrains Mono", monospace;
  color: var(--text-1);
  font-size: 12px;
}

.move-list-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.move-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  scroll-behavior: smooth;
}
.move-list::-webkit-scrollbar {
  width: 4px;
}
.move-list::-webkit-scrollbar-track {
  background: transparent;
}
.move-list::-webkit-scrollbar-thumb {
  background: var(--bg-4);
  border-radius: 4px;
}

.move-pair {
  display: grid;
  grid-template-columns: 28px 1fr 1fr;
  gap: 2px;
  margin-bottom: 2px;
  align-items: center;
}
.move-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--text-2);
  text-align: right;
  padding-right: 6px;
}
.move-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px 8px;
  border-radius: 5px;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: var(--text-1);
  text-align: left;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 4px;
  width: 100%;
}
.move-btn:hover {
  background: var(--bg-3);
  color: var(--text-0);
}
.move-btn.active {
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid var(--accent-dim);
}
.move-class-icon {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ─── CENTER PANEL ─── */
.center-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  background: var(--bg-0);
  height: 100%;
  min-height: 0;
  overflow: hidden;
}

.player-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-1);
  flex-shrink: 0;
  width: 100%;
  max-width: 600px;
  padding: 8px 0;
}
.player-label .piece-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}
.player-label .piece-icon.w {
  background: #f5f0e8;
  color: #0d0f12;
}
.player-label .piece-icon.b {
  background: #1e2229;
  border: 1px solid #444;
}

.board-wrapper {
  flex: 1;
  min-height: 0;
  width: 100%;
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: center;
}
.eval-bar-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  height: 100%;
}
.eval-bar {
  width: 16px;
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg-3);
  display: flex;
  flex-direction: column;
  position: relative;
}
.eval-bar-inner {
  width: 100%;
  background: var(--eval-white);
  transition: height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
}
.eval-score {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  color: var(--text-2);
  text-align: center;
}

#board-container {
  position: relative;
  user-select: none;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
#chess-board {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  border: 2px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

.square {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  cursor: pointer;
  transition: background 0.1s;
}
.square.light {
  background: var(--white-sq);
}
.square.dark {
  background: var(--black-sq);
}
.square.light.highlight {
  background: var(--white-sq-hi);
}
.square.dark.highlight {
  background: var(--black-sq-hi);
}
.square.last-from.light {
  background: rgba(244, 224, 80, 0.55);
}
.square.last-from.dark {
  background: rgba(180, 160, 0, 0.6);
}
.square.last-to.light {
  background: rgba(244, 224, 80, 0.75);
}
.square.last-to.dark {
  background: rgba(180, 160, 0, 0.8);
}

.piece {
  width: 90%;
  height: 90%;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  pointer-events: none;
  filter: drop-shadow(1px 2px 3px rgba(0, 0, 0, 0.4));
  transition: transform 0.1s;
}
.coord {
  position: absolute;
  font-family: "JetBrains Mono", monospace;
  font-size: 9px;
  font-weight: 500;
  pointer-events: none;
  line-height: 1;
}
.coord-rank {
  bottom: 2px;
  left: 3px;
}
.coord-file {
  top: 2px;
  right: 3px;
}
.square.light .coord {
  color: var(--black-sq);
  opacity: 0.7;
}
.square.dark .coord {
  color: var(--white-sq);
  opacity: 0.7;
}

#arrow-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.nav-controls {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-shrink: 0;
  padding-top: 5px;
}
.nav-btn {
  background: var(--bg-2);
  border: 1px solid var(--border);
  color: var(--text-1);
  width: 36px;
  height: 36px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}
.nav-btn:hover {
  background: var(--bg-4);
  color: var(--text-0);
  border-color: var(--accent-dim);
}
.nav-move-indicator {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: var(--text-2);
  min-width: 60px;
  text-align: center;
}

.flip-btn {
  background: var(--bg-3);
  border: 1px solid var(--border);
  color: var(--text-1);
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.15s;
  margin-left: 8px;
}
.flip-btn:hover {
  background: var(--bg-4);
}

/* ─── RIGHT PANEL ─── */
.right-panel {
  background: var(--bg-1);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.panel-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--bg-1);
  flex-shrink: 0;
}
.panel-tab {
  flex: 1;
  padding: 12px 12px;
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-2);
  cursor: pointer;
  border: none;
  background: none;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: all 0.15s;
  border-bottom: 2px solid transparent;
  font-family: "DM Sans", sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.panel-tab:hover {
  color: var(--text-1);
}
.panel-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-content {
  display: none;
  flex: 1;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
}
.tab-content.active {
  display: flex;
}

/* Engine Tab */
.move-detail {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.move-detail-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.move-classification {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.move-notation {
  font-family: "JetBrains Mono", monospace;
  font-size: 18px;
  font-weight: 500;
  color: var(--text-0);
}

.eval-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.eval-item {
  background: var(--bg-2);
  border-radius: 8px;
  padding: 8px 12px;
}
.eval-item-label {
  font-size: 10px;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}
.eval-item-value {
  font-family: "JetBrains Mono", monospace;
  font-size: 16px;
  color: var(--text-0);
}
.eval-item-value.pos {
  color: #6db86d;
}
.eval-item-value.neg {
  color: #d47070;
}

.engine-lines {
  flex: 1;
  overflow-y: auto;
  padding: 12px 16px;
  min-height: 0;
}
.engine-lines::-webkit-scrollbar {
  width: 4px;
}
.engine-lines::-webkit-scrollbar-thumb {
  background: var(--bg-4);
  border-radius: 4px;
}
.engine-line-header {
  font-size: 10px;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}
.engine-line {
  background: var(--bg-2);
  border-radius: 6px;
  padding: 8px 10px;
  margin-bottom: 6px;
  display: flex;
  gap: 8px;
  align-items: flex-start;
}
.engine-line-eval {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--accent);
  min-width: 44px;
  flex-shrink: 0;
}
.engine-line-moves {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  color: var(--text-1);
  line-height: 1.5;
  word-break: break-all;
}

/* AI Coach Panel */
.coach-panel {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

.coach-type-banner {
  background: var(--bg-2);
  padding: 8px 14px;
  font-size: 11px;
  color: var(--text-1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.coach-type-badge {
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 500;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  display: flex;
  align-items: center;
  gap: 4px;
}
.badge-basic {
  background: rgba(240, 192, 64, 0.15);
  color: #f0c040;
}
.badge-ai {
  background: rgba(27, 172, 166, 0.15);
  color: #1baca6;
}

.coach-toolbar {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  flex-shrink: 0;
}
.coach-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 12px;
  font-family: "DM Sans", sans-serif;
  font-weight: 500;
  transition: all 0.2s;
}
.coach-btn.ask {
  background: linear-gradient(135deg, var(--accent), #b8922e);
  color: var(--bg-0);
  flex: 1;
}
.coach-btn.ask:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}
.coach-btn.ask:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  filter: none;
}

.auto-coach-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-2);
  cursor: pointer;
  padding: 4px 0;
}
.auto-coach-toggle input[type="checkbox"] {
  accent-color: var(--accent);
  width: 13px;
  height: 13px;
  cursor: pointer;
}

.coach-response {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  scroll-behavior: smooth;
  min-height: 0;
}
.coach-response::-webkit-scrollbar {
  width: 4px;
}
.coach-response::-webkit-scrollbar-thumb {
  background: var(--bg-4);
  border-radius: 4px;
}

.coach-idle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 12px;
  color: var(--text-2);
  text-align: center;
  padding: 10px;
}
.coach-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--bg-3), var(--bg-4));
  border: 2px solid var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  flex-shrink: 0;
}
.coach-idle-text {
  font-size: 12px;
  line-height: 1.5;
  max-width: 200px;
}
.coach-message {
  background: var(--bg-2);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-0);
  border-left: 3px solid var(--accent);
  position: relative;
}
.coach-message-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-size: 11px;
  color: var(--accent);
  font-weight: 500;
}
.coach-message-header .coach-avatar-sm {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--bg-3);
  border: 1px solid var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}

.eval-chart-section {
  padding: 8px 16px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
.eval-chart-label {
  font-size: 10px;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}
#eval-chart {
  width: 100%;
  height: 60px;
  border-radius: 4px;
  cursor: crosshair;
}

.status-bar {
  padding: 8px 18px;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: "JetBrains Mono", monospace;
  flex-shrink: 0;
}
.progress-bar {
  height: 3px;
  background: var(--bg-3);
  position: relative;
  overflow: hidden;
  margin-top: 4px;
  border-radius: 2px;
}
.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.3s;
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.5s infinite;
}
.status-dot.idle {
  background: var(--text-2);
  animation: none;
}
.status-dot.done {
  background: #5cb85c;
  animation: none;
}

.best-move-note {
  background: var(--bg-3);
  border-left: 3px solid #5cb85c;
  padding: 8px 10px;
  margin-top: 8px;
  border-radius: 0 6px 6px 0;
  font-size: 12px;
  color: var(--text-1);
  font-family: "JetBrains Mono", monospace;
}
.coach-context-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 10px;
  font-family: "JetBrains Mono", monospace;
  margin-bottom: 10px;
}
.stream-cursor {
  display: inline-block;
  width: 2px;
  height: 14px;
  background: var(--accent);
  margin-left: 2px;
  vertical-align: middle;
  animation: blink 0.8s infinite;
}
@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

/* ─── MODALS ─── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}
.modal-overlay.open {
  display: flex;
}
.modal {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  width: 420px;
  max-width: 90vw;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.7);
  animation: modalIn 0.2s ease;
}
@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.modal-title {
  font-family: "Playfair Display", serif;
  font-size: 20px;
  color: var(--text-0);
  margin-bottom: 6px;
}
.modal-sub {
  font-size: 12px;
  color: var(--text-2);
  line-height: 1.5;
  margin-bottom: 20px;
}
.modal-field {
  margin-bottom: 16px;
}
.modal-field label {
  display: block;
  font-size: 11px;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}
.modal-field input[type="text"],
.modal-field input[type="password"],
.modal-field select {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border);
  color: var(--text-0);
  padding: 10px 12px;
  border-radius: 8px;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  outline: none;
  transition: border-color 0.2s;
}
.modal-field input:focus,
.modal-field select:focus {
  border-color: var(--accent);
}
.modal-field select option {
  background: var(--bg-2);
}
.modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 20px;
}
.modal-note {
  background: var(--bg-3);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 11px;
  color: var(--text-2);
  line-height: 1.5;
  margin-bottom: 16px;
}

/* AI Warning Modal */
#ai-warning-modal .modal {
  border: 2px solid #e07820;
  text-align: center;
}
.warning-box {
  background: rgba(224, 120, 32, 0.1);
  border: 1px solid rgba(224, 120, 32, 0.4);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 20px;
  text-align: left;
  font-size: 12px;
  color: var(--text-1);
  line-height: 1.7;
}
.warning-box strong {
  color: #e07820;
}
#onboarding-modal .modal {
  text-align: center;
}
#error-modal .modal {
  border: 2px solid #e07820;
  text-align: center;
}

/* Robot SVG Styles */
.robo-icon {
  width: 1.1em;
  height: 1.1em;
  vertical-align: -0.15em;
  display: inline-block;
  fill: currentColor;
}
.robo-anim {
  animation: float 3s ease-in-out infinite;
}
@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-4px);
  }
}

/* Responsive */
@media (max-width: 1100px) {
  .main-layout {
    grid-template-columns: 240px 1fr 260px;
  }
}
@media (max-width: 950px) {
  body {
    height: auto;
    overflow-y: auto;
    overflow-x: hidden;
    display: block;
  }
  .input-row {
    flex-direction: column;
  }
  .main-layout {
    display: flex;
    flex-direction: column;
    height: auto;
  }
  .center-panel {
    order: -1;
    min-height: 400px;
    padding: 20px 10px;
    border-bottom: 1px solid var(--border);
  }
  .left-panel {
    height: 450px;
    border-right: none;
    border-bottom: 1px solid var(--border);
    flex: none;
  }
  .right-panel {
    height: 650px;
    border-left: none;
    flex: none;
  }
  #landing-page {
    padding: 40px 20px;
    justify-content: flex-start;
    height: auto;
    min-height: calc(100vh - 70px);
  }
}