/* === EXPLORE HUB === */

/* Layout */
.explore-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  min-height: 100vh;
}

/* Canvas column */
.explore-canvas-col {
  display: flex;
  flex-direction: column;
  padding: 1.5rem 2rem 4rem;
}

/* Nav */
.explore-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2rem 2rem;
}
.explore-nav__logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 300;
  letter-spacing: -0.01em;
  color: var(--fg);
}
.explore-nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--gold);
  color: var(--ink);
  text-decoration: none;
  padding: 0.6rem 1.5rem;
  border-radius: 3px;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  transition: opacity 0.2s;
}
.explore-nav__cta:hover { opacity: 0.85; }
.explore-nav__cta--disabled {
  background: rgba(201,168,76,0.2);
  color: rgba(201,168,76,0.5);
  cursor: default;
  pointer-events: none;
}

/* Intro */
.explore-intro {
  padding: 3rem 0 2rem;
  max-width: 640px;
}
.explore-intro__eyebrow {
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}
.explore-intro__headline {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 300;
  line-height: 1.15;
  color: var(--fg);
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}
.explore-intro__headline em {
  font-style: italic;
  color: var(--gold-light);
}
.explore-intro__sub {
  font-size: 0.9rem;
  color: var(--warm-gray);
  font-weight: 300;
  line-height: 1.7;
}

/* Canvas */
.explore-canvas {
  flex: 1;
  background: rgba(245,240,235,0.02);
  border: 1px dashed rgba(224,219,213,0.12);
  border-radius: 6px;
  padding: 1.5rem;
  min-height: 480px;
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 0.85rem;
  position: relative;
}
.explore-canvas.is-empty {
  align-items: center;
  justify-content: center;
}
.explore-canvas__empty {
  text-align: center;
  padding: 2rem;
}
.explore-canvas__empty-icon {
  margin-bottom: 1rem;
  opacity: 0.3;
}
.explore-canvas__empty p {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 300;
  color: var(--warm-gray);
  font-style: italic;
  line-height: 1.5;
}
.explore-canvas__empty span {
  display: block;
  font-size: 0.75rem;
  color: rgba(138,130,120,0.5);
  font-style: normal;
  font-weight: 300;
  margin-top: 0.5rem;
  font-family: var(--font-body);
}

/* Upload zone */
.explore-upload {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.25rem;
  border: 1px solid rgba(224,219,213,0.1);
  border-radius: 4px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.15s;
  margin-top: 1rem;
}
.explore-upload:hover {
  border-color: rgba(201,168,76,0.3);
  background: rgba(201,168,76,0.04);
}
.explore-upload__icon {
  display: flex;
  align-items: center;
  color: var(--gold);
}
.explore-upload__label {
  font-size: 0.85rem;
  color: var(--warm-gray);
  font-weight: 300;
}
.explore-upload__label strong {
  color: var(--fg);
  font-weight: 400;
}
.explore-upload input[type="file"] {
  display: none;
}

/* Reference cards */
.ref-card {
  position: relative;
  width: 140px;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid rgba(224,219,213,0.08);
  background: rgba(245,240,235,0.04);
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.2s;
  cursor: grab;
}
.ref-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
  border-color: rgba(201,168,76,0.2);
}
.ref-card img {
  width: 100%;
  height: 100px;
  object-fit: cover;
  display: block;
}
.ref-card__meta {
  padding: 0.5rem 0.6rem;
}
.ref-card__type {
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0.6;
  margin-bottom: 0.2rem;
}
.ref-card__note {
  font-size: 0.72rem;
  color: var(--warm-gray);
  font-weight: 300;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.ref-card__remove {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(14,14,14,0.75);
  border: none;
  border-radius: 50%;
  color: var(--warm-gray);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  opacity: 0;
  transition: opacity 0.15s, color 0.15s;
}
.ref-card:hover .ref-card__remove { opacity: 1; }
.ref-card__remove:hover { color: var(--fg); }

/* Text note card */
.ref-card--text {
  width: 160px;
  padding: 0.85rem;
  cursor: default;
}
.ref-card--text .ref-card__type {
  margin-bottom: 0.5rem;
}
.ref-card--text .ref-card__note {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-style: italic;
  font-weight: 300;
  color: var(--warm-gray);
  line-height: 1.5;
  -webkit-line-clamp: 5;
}

/* Add note trigger */
.add-note-btn {
  width: 140px;
  height: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 1px dashed rgba(224,219,213,0.15);
  border-radius: 4px;
  background: none;
  cursor: pointer;
  color: rgba(138,130,120,0.4);
  transition: border-color 0.2s, color 0.2s;
}
.add-note-btn:hover {
  border-color: rgba(201,168,76,0.3);
  color: var(--gold);
}
.add-note-btn span {
  font-size: 0.7rem;
  font-weight: 300;
  letter-spacing: 0.05em;
}

/* AI Education Panel */
.explore-panel {
  border-left: 1px solid rgba(224,219,213,0.06);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: #0f0f0f;
}

.explore-panel__header {
  padding: 1.5rem 1.75rem 1rem;
  border-bottom: 1px solid rgba(224,219,213,0.06);
}
.explore-panel__eyebrow {
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.5rem;
}
.explore-panel__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 300;
  color: var(--fg);
  letter-spacing: -0.01em;
}
.explore-panel__level {
  margin-top: 0.5rem;
  font-size: 0.72rem;
  color: var(--warm-gray);
  font-weight: 300;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.explore-panel__level-dots {
  display: flex;
  gap: 0.25rem;
}
.explore-panel__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(224,219,213,0.15);
}
.explore-panel__dot--active {
  background: var(--gold);
}

/* Commentary stream */
.explore-panel__stream {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Commentary items */
.commentary {
  border-left: 2px solid rgba(201,168,76,0.25);
  padding-left: 1.1rem;
  animation: commentary-in 0.4s ease-out;
}
@keyframes commentary-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.commentary__meta {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
}
.commentary__label {
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0.5;
}
.commentary__ref-tag {
  font-size: 0.6rem;
  color: rgba(138,130,120,0.4);
  font-style: italic;
  font-family: var(--font-display);
}
.commentary__lineage {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 300;
  font-style: italic;
  color: var(--fg);
  line-height: 1.35;
  margin-bottom: 0.6rem;
}
.commentary__elements {
  font-size: 0.78rem;
  color: var(--warm-gray);
  font-weight: 300;
  line-height: 1.65;
  margin-bottom: 0.6rem;
}
.commentary__emotion {
  font-size: 0.8rem;
  font-style: italic;
  color: rgba(232,213,163,0.7);
  font-weight: 300;
  line-height: 1.65;
  margin-bottom: 0.75rem;
}
.commentary__connections {
  font-size: 0.72rem;
  color: rgba(138,130,120,0.6);
  font-weight: 300;
  line-height: 1.55;
  font-style: italic;
}

/* Deeper dive toggle */
.commentary__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.68rem;
  color: rgba(201,168,76,0.5);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem 0;
  margin-top: 0.5rem;
  font-family: var(--font-body);
  font-weight: 300;
  transition: color 0.15s;
}
.commentary__toggle:hover { color: var(--gold); }

.commentary__deeper {
  display: none;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(224,219,213,0.05);
  font-size: 0.8rem;
  color: var(--warm-gray);
  font-weight: 300;
  line-height: 1.7;
}
.commentary__deeper.is-open { display: block; }

/* Passive observation (level 0-1) */
.commentary--passive .commentary__lineage {
  font-size: 0.95rem;
  color: var(--warm-gray);
}

/* Probing question */
.commentary--question {
  background: rgba(201,168,76,0.04);
  border-left-color: var(--gold);
  padding: 1rem 1rem 1rem 1.1rem;
  border-radius: 0 4px 4px 0;
}
.commentary--question .commentary__meta { margin-bottom: 0.6rem; }
.commentary__question-text {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-style: italic;
  font-weight: 300;
  color: var(--fg);
  line-height: 1.5;
}
.commentary__question-context {
  font-size: 0.75rem;
  color: var(--warm-gray);
  font-weight: 300;
  margin-top: 0.6rem;
  line-height: 1.6;
  font-style: italic;
}

/* Empty state */
.explore-panel__empty {
  padding: 2rem 1.75rem;
  text-align: center;
}
.explore-panel__empty-rule {
  width: 2rem;
  height: 1px;
  background: var(--gold);
  opacity: 0.3;
  margin: 0 auto 1.5rem;
}
.explore-panel__empty p {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-style: italic;
  color: rgba(138,130,120,0.45);
  line-height: 1.65;
  font-weight: 300;
}

/* Commit section */
.explore-panel__commit {
  padding: 1.25rem 1.75rem;
  border-top: 1px solid rgba(224,219,213,0.06);
}
.explore-panel__commit-label {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--warm-gray);
  margin-bottom: 0.85rem;
}
.explore-panel__commit-count {
  font-size: 0.8rem;
  color: var(--gold);
  font-weight: 300;
  margin-bottom: 0.85rem;
}
.commit-btn {
  display: block;
  width: 100%;
  background: var(--gold);
  color: var(--ink);
  border: none;
  border-radius: 3px;
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  transition: opacity 0.2s;
}
.commit-btn:hover:not(:disabled) { opacity: 0.88; }
.commit-btn:disabled {
  background: rgba(201,168,76,0.15);
  color: rgba(201,168,76,0.4);
  cursor: default;
}

/* Note modal */
.note-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(14,14,14,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.note-modal-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}
.note-modal {
  background: #161616;
  border: 1px solid rgba(224,219,213,0.1);
  border-radius: 8px;
  padding: 2rem;
  width: 420px;
  max-width: 90vw;
}
.note-modal__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 300;
  color: var(--fg);
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}
.note-modal__textarea {
  width: 100%;
  background: rgba(245,240,235,0.04);
  border: 1px solid rgba(224,219,213,0.12);
  border-radius: 4px;
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 300;
  line-height: 1.65;
  padding: 1rem 1.25rem;
  resize: vertical;
  min-height: 100px;
  transition: border-color 0.2s;
}
.note-modal__textarea::placeholder { color: rgba(138,130,120,0.5); }
.note-modal__textarea:focus {
  outline: none;
  border-color: rgba(201,168,76,0.4);
}
.note-modal__hint {
  font-size: 0.72rem;
  color: rgba(138,130,120,0.5);
  margin-top: 0.5rem;
  font-weight: 300;
}
.note-modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.25rem;
}
.note-modal__cancel {
  background: none;
  border: 1px solid rgba(224,219,213,0.1);
  border-radius: 3px;
  color: var(--warm-gray);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 300;
  padding: 0.55rem 1.25rem;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.note-modal__cancel:hover { color: var(--fg); border-color: rgba(224,219,213,0.2); }
.note-modal__save {
  background: var(--gold);
  border: none;
  border-radius: 3px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.55rem 1.5rem;
  cursor: pointer;
  transition: opacity 0.2s;
}
.note-modal__save:hover { opacity: 0.85; }

/* Responsive */
@media (max-width: 900px) {
  .explore-layout {
    grid-template-columns: 1fr;
  }
  .explore-panel {
    border-left: none;
    border-top: 1px solid rgba(224,219,213,0.06);
    min-height: auto;
  }
  .explore-canvas-col {
    padding-bottom: 2rem;
  }
  .explore-canvas-col,
  .explore-panel {
    max-height: none;
    overflow: visible;
  }
}

@media (max-width: 640px) {
  .explore-nav { padding: 1rem 1.25rem; }
  .explore-canvas-col { padding: 1rem 1.25rem 3rem; }
  .ref-card { width: 120px; }
  .ref-card--text { width: 130px; }
  .add-note-btn { width: 120px; }
}