:root,
[data-theme="obsidian"] {
  --bg:        #080608;
  --surface-1: #0d0b0f;
  --surface-2: #121016;
  --border-1:  #1e1a26;
  --border-2:  #2e2840;
  --accent-1:  #8b6fd4;
  --accent-2:  #5c3fb0;
  --text-pri:  #ede8f5;
  --text-mid:  #b0a8c8;
  --text-mut:  #4e4668;
  --text-dim:  #2e2840;
  --user-bg:   #130f1c;
  --msg-bg:    #0f0d14;
  --chip-bg:   #1a1528;
  --danger:    #e05555;
  --danger-bg: #1a0808;
  --danger-br: #4a1515;
  --success:   #3db870;
  --success-br:#1e4a30;
}

[data-theme="blueprint"] {
  --bg:        #060810;
  --surface-1: #090c18;
  --surface-2: #0c1020;
  --border-1:  #141e38;
  --border-2:  #1e2e52;
  --accent-1:  #4d9ef7;
  --accent-2:  #1a6fd4;
  --text-pri:  #e4edf8;
  --text-mid:  #8aaad0;
  --text-mut:  #3a5478;
  --text-dim:  #1e2e52;
  --user-bg:   #0c1830;
  --msg-bg:    #090e1e;
  --chip-bg:   #101a38;
  --danger:    #e05555;
  --danger-bg: #1a0808;
  --danger-br: #4a1515;
  --success:   #3db870;
  --success-br:#1e4a30;
}

[data-theme="slate"] {
  --bg:        #080909;
  --surface-1: #0d0f0f;
  --surface-2: #111414;
  --border-1:  #1c2020;
  --border-2:  #2a3030;
  --accent-1:  #6a9ab0;
  --accent-2:  #3d6e88;
  --text-pri:  #e8ecec;
  --text-mid:  #9aacac;
  --text-mut:  #445050;
  --text-dim:  #2a3030;
  --user-bg:   #101818;
  --msg-bg:    #0c1414;
  --chip-bg:   #141e1e;
  --danger:    #e05555;
  --danger-bg: #1a0808;
  --danger-br: #4a1515;
  --success:   #3db870;
  --success-br:#1e4a30;
}

[data-theme="light"] {
  --bg:        #eceae6;
  --surface-1: #f5f3f0;
  --surface-2: #ffffff;
  --border-1:  #d8d4ce;
  --border-2:  #a8a49e;
  --accent-1:  #2a52a0;
  --accent-2:  #1a3570;
  --text-pri:  #141210;
  --text-mid:  #2e2c28;
  --text-mut:  #7a7570;
  --text-dim:  #b0aca8;
  --user-bg:   #e4e0da;
  --msg-bg:    #eceae6;
  --chip-bg:   #dedad4;
  --danger:    #b83030;
  --danger-bg: #faeaea;
  --danger-br: #e8b0b0;
  --success:   #1e7a45;
  --success-br:#a0ddb8;
}
/* ============================================================
   RESET
   ============================================================ */

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

/* ============================================================
   BASE
   ============================================================ */

body {
  background: var(--bg);
  min-height: 100vh;
  font-family: 'Space Grotesk', sans-serif;
}

/* ============================================================
   APP SHELL
   ============================================================ */

.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100%;
  background: var(--surface-1);
  color: var(--text-pri);
  position: relative;
}

.app-body {
  flex: 1;
  display: flex;
  overflow: hidden;
  min-height: 0;
}

.app-header {
  width: 100%;
  background: var(--surface-2);
  border-bottom: 0.5px solid var(--border-1);
  padding: 14px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-shrink: 0;
  z-index: 10;
}

.app-header-right {
  display: flex;
  align-items: center;
  gap: 20px;
  flex: 1;
  justify-content: space-between;
  margin-left: 24px;
}


/* ============================================================
   SIDEBAR
   ============================================================ */


.sidebar {
  width: 22%;
  min-width: 220px;
  max-width: 320px;
  background: var(--surface-2);
  border-right: 0.5px solid var(--border-1);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow: hidden;
  min-height: 0;
}

.sidebar-body {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border-1) transparent;
}

.sidebar.collapsed {
  width: 0;
  min-width: 0;
}

.sidebar-header {
  padding: 20px 22px 16px;
  border-bottom: 0.5px solid var(--border-1);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

/* ============================================================
   LOGO
   ============================================================ */

.logo {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.5px;
  color: var(--text-pri);
}

.logo-accent { color: var(--accent-1); }

.logo-sub {
  font-size: 10px;
  font-family: 'Space Mono', monospace;
  color: var(--text-mut);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-top: 3px;
}

/* ============================================================
   SIDEBAR BODY / FILTER SECTIONS
   ============================================================ */


.filter-section { border-bottom: 0.5px solid var(--border-1); }

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 22px;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s;
}

.section-header:hover { background: var(--user-bg); }

.section-label {
  font-size: 10px;
  font-family: 'Space Mono', monospace;
  color: var(--text-mut);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.chevron {
  font-size: 11px;
  color: var(--text-mut);
  transition: transform 0.2s;
}

.msg-thinking { color: var(--text-mut); }
.msg-error    { color: var(--text-mut); }

.graph-label {
  margin-bottom: 6px;
  font-size: 11px;
  color: var(--accent-1);
  font-family: 'Space Mono', monospace;
}

.graph-img {
  width: 100%;
  border-radius: 6px;
  border: 0.5px solid var(--border-1);
}

.graph-link {
  color: var(--accent-1);
  font-size: 11px;
  font-family: 'Space Mono', monospace;
}

.section-header.collapsed .chevron { transform: rotate(-90deg); }

.section-body {
  padding: 8px 22px 14px;
  overflow: hidden;
  transition: max-height 0.25s ease, opacity 0.2s ease;
  max-height: 600px;
  opacity: 1;
}

.section-body.collapsed {
  max-height: 0;
  opacity: 0;
  padding: 0 22px;
}

/* ============================================================
   SLIDERS
   ============================================================ */

.slider-row { margin-bottom: 16px; }

.slider-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.slider-name {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-mid);
  transition: color 0.15s;
}

.slider-val {
  font-size: 11px;
  font-family: 'Space Mono', monospace;
  color: var(--accent-1);
}

.range-track {
  position: relative;
  height: 20px;
  display: flex;
  align-items: center;
}

.track-bg {
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: var(--border-1);
  border-radius: 2px;
}

.track-fill {
  position: absolute;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-2), var(--accent-1));
  border-radius: 2px;
}

.range-track input[type=range] {
  position: absolute;
  width: 100%;
  pointer-events: none;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
}

.range-track input[type=range]::-webkit-slider-thumb {
  pointer-events: all;
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-1);
  border: 2px solid var(--surface-1);
  cursor: pointer;
}

.range-track input[type=range]::-moz-range-thumb {
  pointer-events: all;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-1);
  border: 2px solid var(--surface-1);
  cursor: pointer;
}

.range-track.disabled .track-fill { background: var(--border-1); }

.range-track.disabled input[type=range]::-webkit-slider-thumb {
  background: var(--border-2);
  cursor: not-allowed;
}

.range-track.disabled input[type=range]::-moz-range-thumb {
  background: var(--border-2);
  cursor: not-allowed;
}

/* ============================================================
   TOGGLES
   ============================================================ */

.toggle-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.toggle-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-mid);
}

.toggle {
  width: 32px;
  height: 18px;
  background: var(--border-1);
  border-radius: 9px;
  position: relative;
  cursor: pointer;
  transition: background 0.2s;
  flex-shrink: 0;
}

.toggle.on { background: var(--accent-2); }

.toggle::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  background: var(--text-pri);
  border-radius: 50%;
  top: 2px;
  left: 2px;
  transition: left 0.2s;
}

.toggle.on::after { left: 16px; }

/* ============================================================
   SELECT
   ============================================================ */

.select-row { margin-bottom: 10px; }

.styled-select {
  width: 100%;
  background: var(--surface-1);
  border: 0.5px solid var(--border-1);
  border-radius: 6px;
  padding: 7px 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12px;
  color: var(--text-mid);
  outline: none;
  cursor: pointer;
}

.styled-select:focus { border-color: var(--accent-2); }

/* ============================================================
   MAIN PANEL
   ============================================================ */

.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--surface-1);
  overflow: hidden;
}

.chat-header {
  padding: 16px 22px;
  background: var(--surface-2);
  border-bottom: 0.5px solid var(--border-1);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.active-filters {
  font-size: 10px;
  font-family: 'Space Mono', monospace;
  color: var(--text-mut);
  background: var(--user-bg);
  border: 0.5px solid var(--border-1);
  padding: 3px 10px;
  border-radius: 4px;
}

/* ============================================================
   MESSAGES
   ============================================================ */

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-1) transparent;
}

.msg {
  max-width: 82%;
  padding: 11px 15px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-mid);
}

.msg.user {
  align-self: flex-end;
  background: var(--user-bg);
  border: 0.5px solid var(--border-2);
  border-radius: 12px 12px 4px 12px;
  color: var(--text-pri);
}

.msg.system {
  align-self: flex-start;
  background: var(--msg-bg);
  border: 0.5px solid var(--border-1);
  border-radius: 12px 12px 12px 4px;
}

.msg-meta {
  font-size: 10px;
  color: var(--text-mut);
  font-family: 'Space Mono', monospace;
  margin-bottom: 6px;
}

.msg.system .msg-meta { color: var(--accent-1); }

.result-chip {
  display: inline-block;
  font-size: 11px;
  font-family: 'Space Mono', monospace;
  background: var(--chip-bg);
  color: var(--accent-1);
  border: 0.5px solid var(--border-2);
  padding: 2px 8px;
  border-radius: 4px;
  margin: 2px 3px 2px 0;
}

/* ============================================================
   INPUT AREA
   ============================================================ */

.input-area {
  padding: 14px 18px;
  background: var(--surface-2);
  border-top: 0.5px solid var(--border-1);
  display: flex;
  gap: 10px;
  align-items: center;
}

.input-wrap {
  flex: 1;
  background: var(--surface-1);
  border: 0.5px solid var(--border-1);
  border-radius: 8px;
  padding: 10px 14px;
  transition: border-color 0.15s;
}

.input-wrap:focus-within { border-color: var(--accent-2); }

.input-wrap input {
  border: none;
  background: transparent;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  color: var(--text-pri);
  width: 100%;
  outline: none;
}

.input-wrap input::placeholder { color: var(--text-dim); }

.send-btn {
  width: 36px;
  height: 36px;
  background: var(--accent-2);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.15s;
}

.send-btn:hover { background: var(--accent-1); }
.send-btn svg { width: 14px; height: 14px; fill: white; }

/* ============================================================
   TABS
   ============================================================ */

.tabs {
  display: flex;
  gap: 4px;
}

.tab {
  font-size: 11px;
  font-family: 'Space Mono', monospace;
  color: var(--text-mut);
  padding: 4px 12px;
  border-radius: 4px;
  cursor: pointer;
  border: 0.5px solid transparent;
  transition: all 0.15s;
  user-select: none;
}

.tab:hover { color: var(--text-mid); border-color: var(--border-1); }

.tab.active {
  color: var(--accent-1);
  border-color: var(--border-2);
  background: var(--user-bg);
}

/* ============================================================
   AUTH MODAL
   ============================================================ */

.auth-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 6, 16, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
}

.auth-modal {
  background: var(--surface-2);
  border: 0.5px solid var(--border-1);
  border-radius: 12px;
  padding: 36px 40px;
  width: 340px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.auth-logo {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.5px;
  color: var(--text-pri);
}

.auth-sub {
  font-size: 10px;
  font-family: 'Space Mono', monospace;
  color: var(--text-mut);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-top: -6px;
}

.auth-error {
  background: var(--danger-bg);
  border: 0.5px solid var(--danger-br);
  color: var(--danger);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
}

.auth-modal input {
  background: var(--surface-1);
  border: 0.5px solid var(--border-1);
  border-radius: 8px;
  padding: 10px 14px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  color: var(--text-pri);
  outline: none;
  transition: border-color 0.15s;
}

.auth-modal input:focus { border-color: var(--accent-2); }
.auth-modal input::placeholder { color: var(--text-dim); }

.auth-modal button {
  background: var(--accent-2);
  border: none;
  border-radius: 8px;
  padding: 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: white;
  cursor: pointer;
  transition: background 0.15s;
  margin-top: 4px;
}

.auth-modal button:hover { background: var(--accent-1); }

/* ============================================================
   BADGES / UTILITY
   ============================================================ */

.hidden { display: none !important; }

.user-badge {
  font-size: 10px;
  font-family: 'Space Mono', monospace;
  color: var(--text-mut);
  background: var(--user-bg);
  border: 0.5px solid var(--border-1);
  padding: 3px 10px;
  border-radius: 4px;
}

.signout-btn {
  font-size: 10px;
  font-family: 'Space Mono', monospace;
  color: var(--text-mut);
  background: transparent;
  border: 0.5px solid var(--border-1);
  padding: 3px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}

.signout-btn:hover { color: var(--text-mid); border-color: var(--border-2); }

/* ============================================================
   PANEL COLLAPSE / EXPAND BUTTONS
   ============================================================ */

.panel-collapse-btn {
  background: transparent;
  border: 0.5px solid var(--border-1);
  color: var(--text-mut);
  font-size: 10px;
  padding: 3px 7px;
  border-radius: 4px;
  cursor: pointer;
  flex-shrink: 0;
  margin-top: 2px;
  transition: color 0.15s, border-color 0.15s;
}

.panel-collapse-btn:hover {
  color: var(--text-mid);
  border-color: var(--border-2);
  background: transparent;
}

.panel-expand-btn {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  left: 0;
  background: var(--surface-2);
  border: 0.5px solid var(--border-1);
  border-left: none;
  color: var(--text-mut);
  font-size: 10px;
  padding: 12px 6px;
  cursor: pointer;
  border-radius: 0 6px 6px 0;
  z-index: 100;
  transition: color 0.15s;
}

.panel-expand-btn.right {
  left: auto;
  right: 0;
  border-left: 0.5px solid var(--border-1);
  border-right: none;
  border-radius: 6px 0 0 6px;
}

.panel-expand-btn:hover { color: var(--text-mid); background: var(--user-bg); }
.panel-expand-btn.hidden { display: none; }

/* ============================================================
   WORKSPACE PANEL
   ============================================================ */

.workspace {
  width: 22%;
  min-width: 220px;
  max-width: 320px;
  background: var(--surface-2);
  border-left: 0.5px solid var(--border-1);
  display: flex;
  flex-direction: column;
  transition: width 0.25s ease, min-width 0.25s ease;
  flex-shrink: 0;
}

.workspace.collapsed {
  width: 0;
  min-width: 0;
  overflow: hidden;
}

.workspace-header {
  padding: 20px 16px 16px;
  border-bottom: 0.5px solid var(--border-1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.workspace-title {
  font-size: 10px;
  font-family: 'Space Mono', monospace;
  color: var(--text-mut);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.workspace-body {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
  padding: 14px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-1) transparent;
}

.workspace-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 120px;
  font-size: 12px;
  color: var(--text-mut);
  text-align: center;
  font-family: 'Space Mono', monospace;
}

.workspace-hint {
  font-size: 10px;
  color: var(--text-dim);
}

/* ============================================================
   FAVORITE CARDS
   ============================================================ */

.favorite-card {
  background: var(--surface-1);
  border: 0.5px solid var(--border-1);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 10px;
  transition: border-color 0.15s;
}

.favorite-card:hover { border-color: var(--border-2); }

.favorite-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.favorite-part-number {
  font-size: 12px;
  font-family: 'Space Mono', monospace;
  color: var(--accent-1);
  font-weight: 700;
}

.favorite-remove {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 14px;
  padding: 0;
  line-height: 1;
  transition: color 0.15s;
}

.favorite-remove:hover { color: var(--danger); }

.favorite-specs {
  font-size: 11px;
  color: var(--text-mut);
  font-family: 'Space Mono', monospace;
  margin-bottom: 8px;
  line-height: 1.6;
}

.favorite-notes {
  width: 100%;
  background: var(--surface-2);
  border: 0.5px solid var(--border-1);
  border-radius: 6px;
  padding: 6px 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  color: var(--text-mid);
  resize: none;
  outline: none;
  min-height: 52px;
  transition: border-color 0.15s;
}

.favorite-notes:focus { border-color: var(--accent-2); }
.favorite-notes::placeholder { color: var(--text-dim); }

/* ============================================================
   SAVE PART BUTTON
   ============================================================ */

.save-part-btn {
  background: transparent;
  border: 0.5px solid var(--border-2);
  color: var(--accent-1);
  font-size: 10px;
  font-family: 'Space Mono', monospace;
  padding: 2px 8px;
  border-radius: 4px;
  cursor: pointer;
  margin-left: 4px;
  transition: background 0.15s, border-color 0.15s;
}

.save-part-btn:hover { background: var(--chip-bg); border-color: var(--accent-1); }
.save-part-btn.saved { color: var(--success); border-color: var(--success-br); }

/* ============================================================
   WORKSPACE ADD FORM
   ============================================================ */

.workspace-add {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 0.5px solid var(--border-1);
}

.workspace-add input,
.workspace-add textarea {
  background: var(--surface-1);
  border: 0.5px solid var(--border-1);
  border-radius: 6px;
  padding: 8px 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12px;
  color: var(--text-pri);
  outline: none;
  transition: border-color 0.15s;
}

.workspace-add input:focus,
.workspace-add textarea:focus { border-color: var(--accent-2); }

.workspace-add input::placeholder,
.workspace-add textarea::placeholder { color: var(--text-dim); }

.workspace-add textarea {
  resize: none;
  min-height: 60px;
}

.workspace-add button {
  background: var(--chip-bg);
  border: 0.5px solid var(--border-2);
  border-radius: 6px;
  padding: 7px;
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  color: var(--accent-1);
  cursor: pointer;
  transition: background 0.15s;
}

.workspace-add button:hover { background: var(--user-bg); }


.theme-picker {
  position: relative;
}

.theme-trigger {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  font-family: 'Space Mono', monospace;
  color: var(--text-mut);
  background: transparent;
  border: 0.5px solid var(--border-1);
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}

.theme-trigger:hover {
  color: var(--text-mid);
  border-color: var(--border-2);
}

.theme-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--surface-2);
  border: 0.5px solid var(--border-1);
  border-radius: 6px;
  overflow: hidden;
  z-index: 100;
  min-width: 130px;
}

.theme-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  font-size: 11px;
  font-family: 'Space Mono', monospace;
  color: var(--text-mut);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.theme-option:hover {
  background: var(--user-bg);
  color: var(--text-mid);
}

.theme-option.active {
  color: var(--accent-1);
}

.theme-dots {
  display: flex;
  gap: 3px;
}

.theme-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: block;
}