/* =========================================================================
   ckanext-chartscha — modern UI styles
   Scoped under .chartscha-app to avoid colliding with CKAN/Bootstrap globals.
   ========================================================================= */

.chartscha-app {
  --cs-accent: #206b82;
  --cs-accent-600: #1a586c;
  --cs-accent-700: #144758;
  --cs-accent-50: #e8f1f4;
  --cs-accent-100: #d3e3e9;

  --cs-bg: #f6f8fa;
  --cs-surface: #ffffff;
  --cs-surface-2: #fbfcfd;
  --cs-surface-3: #f1f4f7;

  --cs-border: #e3e8ee;
  --cs-border-strong: #cfd6de;

  --cs-text: #1f2a33;
  --cs-text-muted: #5c6b78;
  --cs-text-soft: #8896a3;

  --cs-success: #1f7a4d;
  --cs-success-bg: #e6f4ec;
  --cs-warning: #b07b00;
  --cs-warning-bg: #fff4d6;
  --cs-warning-border: #f0d68a;
  --cs-danger: #b3261e;
  --cs-danger-bg: #fdecea;

  --cs-radius-sm: 8px;
  --cs-radius: 12px;
  --cs-radius-lg: 16px;
  --cs-radius-pill: 999px;

  --cs-shadow-sm: 0 1px 2px rgba(15, 30, 45, 0.06);
  --cs-shadow: 0 6px 24px rgba(15, 30, 45, 0.08);
  --cs-shadow-md: 0 12px 40px rgba(15, 30, 45, 0.12);
  --cs-ring: 0 0 0 3px rgba(32, 107, 130, 0.22);

  --cs-ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --cs-dur: 200ms;

  color: var(--cs-text);
  font-size: 14px;
  line-height: 1.5;
  background: var(--cs-bg);
  border-radius: var(--cs-radius-lg);
  padding: 18px;
}

.chartscha-app *,
.chartscha-app *::before,
.chartscha-app *::after {
  box-sizing: border-box;
}

/* -------- Layout shell ---------------------------------------------------- */
.chartscha-shell {
  display: grid;
  grid-template-columns: minmax(320px, 440px) minmax(0, 1fr);
  gap: 18px;
  align-items: stretch;
}

.chartscha-column {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--cs-surface);
  border-radius: var(--cs-radius-lg);
  box-shadow: var(--cs-shadow);
  overflow: hidden;
}

.chartscha-column-chat {
  min-height: 640px;
}

/* -------- Headers --------------------------------------------------------- */
.chartscha-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  background: linear-gradient(180deg, var(--cs-surface) 0%, var(--cs-surface-2) 100%);
  border-bottom: 1px solid var(--cs-border);
}

.chartscha-header-main {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.chartscha-avatar {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border-radius: var(--cs-radius);
  background: linear-gradient(135deg, var(--cs-accent) 0%, #2f8ba6 100%);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(32, 107, 130, 0.28);
}

.chartscha-avatar .cs-icon { width: 20px; height: 20px; }

.chartscha-header-text { min-width: 0; }

.chartscha-title {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.25;
  color: var(--cs-text);
  letter-spacing: -0.005em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chartscha-subtitle {
  margin: 2px 0 0;
  color: var(--cs-text-muted);
  font-size: 12.5px;
  line-height: 1.4;
}

.chartscha-header-actions {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.chartscha-badge {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px 5px 8px;
  border-radius: var(--cs-radius-pill);
  background: var(--cs-accent-50);
  color: var(--cs-accent-700);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  border: 1px solid var(--cs-accent-100);
}

.chartscha-badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cs-success);
  box-shadow: 0 0 0 3px rgba(31, 122, 77, 0.18);
}

.chartscha-badge[data-status="off"] {
  background: var(--cs-danger-bg);
  color: var(--cs-danger);
  border-color: rgba(179, 38, 30, 0.2);
}

.chartscha-badge[data-status="off"]::before {
  background: var(--cs-danger);
  box-shadow: 0 0 0 3px rgba(179, 38, 30, 0.18);
}

/* -------- Banners / warnings --------------------------------------------- */
.chartscha-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 14px 18px 0;
  padding: 11px 14px;
  background: var(--cs-warning-bg);
  border: 1px solid var(--cs-warning-border);
  border-radius: var(--cs-radius);
  font-size: 13px;
  color: #6e4d00;
}

.chartscha-banner-actions { display: flex; gap: 6px; }

.chartscha-warnings { padding: 14px 18px 0; }

.chartscha-warnings:empty { display: none; }

.chartscha-warning {
  margin-bottom: 8px;
  padding: 10px 12px;
  border-radius: var(--cs-radius);
  background: var(--cs-danger-bg);
  color: #7a1c16;
  border-left: 3px solid var(--cs-danger);
  font-size: 13px;
  line-height: 1.45;
}

.chartscha-hidden { display: none !important; }

/* -------- Messages thread ------------------------------------------------- */
.chartscha-messages {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 18px;
  background:
    radial-gradient(circle at 50% 0%, rgba(32, 107, 130, 0.04), transparent 60%),
    var(--cs-surface-3);
  scroll-behavior: smooth;
}

.chartscha-messages::-webkit-scrollbar { width: 8px; }
.chartscha-messages::-webkit-scrollbar-thumb {
  background: var(--cs-border-strong);
  border-radius: 4px;
}
.chartscha-messages::-webkit-scrollbar-track { background: transparent; }

.chartscha-message {
  position: relative;
  max-width: 88%;
  margin-bottom: 10px;
  padding: 11px 14px;
  font-size: 13.5px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  animation: cs-msg-in 240ms var(--cs-ease) both;
}

.chartscha-message-user {
  margin-left: auto;
  background: linear-gradient(135deg, var(--cs-accent) 0%, #2a8099 100%);
  color: #fff;
  border-radius: 16px 16px 4px 16px;
  box-shadow: 0 2px 6px rgba(32, 107, 130, 0.18);
}

.chartscha-message-assistant {
  background: var(--cs-surface);
  border: 1px solid var(--cs-border);
  color: var(--cs-text);
  border-radius: 16px 16px 16px 4px;
  box-shadow: var(--cs-shadow-sm);
}

.chartscha-message-empty {
  background: transparent;
  border: 1px dashed var(--cs-border-strong);
  color: var(--cs-text-muted);
  font-style: normal;
  text-align: center;
  margin: 8px auto;
  max-width: 100%;
  border-radius: var(--cs-radius);
}

@keyframes cs-msg-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0);   }
}

/* -------- Section labels ------------------------------------------------- */
.chartscha-section-label {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
  color: var(--cs-text-muted);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.chartscha-section-label .cs-icon { width: 13px; height: 13px; opacity: 0.75; }

/* -------- Suggestions ---------------------------------------------------- */
.chartscha-suggestions {
  padding: 14px 18px;
  border-top: 1px solid var(--cs-border);
  background: var(--cs-surface);
}

.chartscha-suggestion-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chartscha-suggestion {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 8px 12px;
  border: 1px solid var(--cs-border);
  border-radius: var(--cs-radius-pill);
  background: var(--cs-surface);
  color: var(--cs-text);
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
  transition:
    transform var(--cs-dur) var(--cs-ease),
    border-color var(--cs-dur) var(--cs-ease),
    box-shadow var(--cs-dur) var(--cs-ease),
    background var(--cs-dur) var(--cs-ease);
}

.chartscha-suggestion::before {
  content: "";
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  background-color: var(--cs-accent);
  -webkit-mask: var(--cs-icon-spark) center / contain no-repeat;
          mask: var(--cs-icon-spark) center / contain no-repeat;
}

.chartscha-suggestion:hover {
  transform: translateY(-1px);
  border-color: var(--cs-accent);
  background: var(--cs-accent-50);
  box-shadow: var(--cs-shadow-sm);
}

.chartscha-suggestion:active { transform: translateY(0); }

/* -------- Composer (input area) ------------------------------------------ */
.chartscha-input-area {
  padding: 14px 18px 18px;
  background: var(--cs-surface);
  border-top: 1px solid var(--cs-border);
}

.chartscha-composer {
  display: flex;
  flex-direction: column;
  background: var(--cs-surface);
  border: 1px solid var(--cs-border);
  border-radius: var(--cs-radius);
  transition:
    border-color var(--cs-dur) var(--cs-ease),
    box-shadow var(--cs-dur) var(--cs-ease);
}

.chartscha-composer:focus-within {
  border-color: var(--cs-accent);
  box-shadow: var(--cs-ring);
}

.chartscha-textarea {
  width: 100%;
  min-height: 84px;
  resize: vertical;
  padding: 12px 14px;
  border: 0;
  background: transparent;
  font: inherit;
  color: var(--cs-text);
  outline: none;
  border-radius: var(--cs-radius) var(--cs-radius) 0 0;
}

.chartscha-textarea::placeholder { color: var(--cs-text-soft); }

.chartscha-input-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 10px 8px 14px;
  border-top: 1px solid var(--cs-border);
  background: var(--cs-surface-2);
  border-radius: 0 0 var(--cs-radius) var(--cs-radius);
}

.chartscha-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 22px;
  color: var(--cs-text-muted);
  font-size: 12.5px;
}

.chartscha-status[data-loading="true"]::after {
  content: "";
  width: 28px;
  height: 10px;
  background:
    radial-gradient(circle 3px at 4px center,  var(--cs-accent) 99%, transparent 100%),
    radial-gradient(circle 3px at 14px center, var(--cs-accent) 99%, transparent 100%),
    radial-gradient(circle 3px at 24px center, var(--cs-accent) 99%, transparent 100%);
  animation: cs-bounce 1s infinite var(--cs-ease);
}

@keyframes cs-bounce {
  0%, 80%, 100% { opacity: 0.3; }
  40%           { opacity: 1; }
}

/* -------- Buttons -------------------------------------------------------- */
.chartscha-app .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  height: 36px;
  padding: 0 14px;
  border: 1px solid var(--cs-border);
  border-radius: var(--cs-radius-sm);
  background: var(--cs-surface);
  color: var(--cs-text);
  font-size: 13px;
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  transition:
    background var(--cs-dur) var(--cs-ease),
    border-color var(--cs-dur) var(--cs-ease),
    color var(--cs-dur) var(--cs-ease),
    box-shadow var(--cs-dur) var(--cs-ease),
    transform var(--cs-dur) var(--cs-ease);
}

.chartscha-app .btn:hover {
  background: var(--cs-surface-3);
  border-color: var(--cs-border-strong);
}

.chartscha-app .btn:active { transform: translateY(1px); }

.chartscha-app .btn-primary {
  background: var(--cs-accent);
  border-color: var(--cs-accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(32, 107, 130, 0.22);
}

.chartscha-app .btn-primary:hover {
  background: var(--cs-accent-600);
  border-color: var(--cs-accent-600);
}

.chartscha-app .btn-small { height: 32px; padding: 0 10px; font-size: 12.5px; }

.chartscha-app .btn-icon {
  width: 36px;
  padding: 0;
  color: var(--cs-text-muted);
}

.chartscha-app .btn-icon:hover {
  color: var(--cs-accent);
  background: var(--cs-accent-50);
  border-color: var(--cs-accent-100);
}

.chartscha-app .btn[disabled],
.chartscha-app .btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.chartscha-app .btn .cs-icon { width: 16px; height: 16px; }

/* -------- Toolbar (chart panel) ------------------------------------------ */
.chartscha-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.chartscha-toolbar-group {
  display: inline-flex;
  align-items: center;
  padding: 3px;
  background: var(--cs-surface-3);
  border: 1px solid var(--cs-border);
  border-radius: var(--cs-radius-sm);
  gap: 2px;
}

.chartscha-toolbar-group .btn-icon {
  height: 30px;
  width: 30px;
  border-color: transparent;
  background: transparent;
  border-radius: 6px;
}

.chartscha-toolbar-group .btn-icon:hover {
  background: var(--cs-surface);
  color: var(--cs-accent);
  border-color: var(--cs-border);
}

/* -------- Chart surface --------------------------------------------------- */
.chartscha-chart-surface {
  position: relative;
  min-height: 380px;
  padding: 18px;
  background: var(--cs-surface);
}

.chartscha-empty-state {
  position: absolute;
  inset: 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 24px;
  background:
    repeating-linear-gradient(
      45deg,
      transparent 0 12px,
      rgba(32, 107, 130, 0.025) 12px 13px
    ),
    var(--cs-surface-2);
  border: 1px dashed var(--cs-border-strong);
  border-radius: var(--cs-radius);
  color: var(--cs-text-muted);
  text-align: center;
}

.chartscha-empty-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--cs-accent-50);
  color: var(--cs-accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.chartscha-empty-icon .cs-icon { width: 26px; height: 26px; }

.chartscha-empty-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--cs-text);
  margin: 0;
}

.chartscha-empty-text {
  font-size: 13px;
  margin: 0;
  max-width: 320px;
}

.chartscha-canvas {
  position: relative;
  z-index: 1;
  width: 100% !important;
  height: 344px !important;
}

/* -------- Detail tabs ---------------------------------------------------- */
.chartscha-tabs {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--cs-border);
  background: var(--cs-surface);
}

.chartscha-tabs input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.chartscha-tablist {
  display: flex;
  gap: 2px;
  padding: 0 18px;
  border-bottom: 1px solid var(--cs-border);
  background: var(--cs-surface-2);
}

.chartscha-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 14px;
  margin-bottom: -1px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--cs-text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color var(--cs-dur) var(--cs-ease), border-color var(--cs-dur) var(--cs-ease);
}

.chartscha-tab:hover { color: var(--cs-accent); }

.chartscha-tab .cs-icon { width: 14px; height: 14px; }

.chartscha-tabs input[type="radio"]:focus-visible + .chartscha-tab {
  outline: 2px solid var(--cs-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

#chartscha-tab-data:checked  ~ .chartscha-tablist label[for="chartscha-tab-data"],
#chartscha-tab-prof:checked  ~ .chartscha-tablist label[for="chartscha-tab-prof"] {
  color: var(--cs-accent);
  border-bottom-color: var(--cs-accent);
}

.chartscha-panels { padding: 16px 18px 18px; }

.chartscha-panel { display: none; }

#chartscha-tab-data:checked ~ .chartscha-panels .chartscha-panel-data,
#chartscha-tab-prof:checked ~ .chartscha-panels .chartscha-panel-prof {
  display: block;
  animation: cs-fade-in 200ms var(--cs-ease) both;
}

@keyframes cs-fade-in {
  from { opacity: 0; transform: translateY(2px); }
  to   { opacity: 1; transform: translateY(0);   }
}

/* -------- Tables --------------------------------------------------------- */
.chartscha-table-container { overflow: auto; max-height: 320px; }

.chartscha-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.chartscha-table thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--cs-surface-2);
  color: var(--cs-text-muted);
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--cs-border);
}

.chartscha-table tbody td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--cs-border);
  vertical-align: top;
}

.chartscha-table tbody tr:nth-child(even) { background: var(--cs-surface-2); }

.chartscha-table tbody tr:last-child td { border-bottom: 0; }

/* -------- Profile -------------------------------------------------------- */
.chartscha-profile { overflow: auto; max-height: 360px; }

.chartscha-profile-list { display: grid; gap: 8px; }

.chartscha-profile-item {
  padding: 11px 13px;
  border: 1px solid var(--cs-border);
  border-radius: var(--cs-radius);
  background: var(--cs-surface);
  transition: border-color var(--cs-dur) var(--cs-ease), background var(--cs-dur) var(--cs-ease);
}

.chartscha-profile-item:hover {
  border-color: var(--cs-accent-100);
  background: var(--cs-surface-2);
}

.chartscha-profile-item:first-child {
  background: var(--cs-accent-50);
  border-color: var(--cs-accent-100);
}

.chartscha-profile-name {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-weight: 600;
  font-size: 13px;
  color: var(--cs-text);
}

.chartscha-profile-kind {
  color: var(--cs-text-muted);
  font-weight: 500;
  font-size: 11.5px;
  background: var(--cs-surface-3);
  padding: 2px 8px;
  border-radius: var(--cs-radius-pill);
  white-space: nowrap;
}

.chartscha-profile-meta {
  margin-top: 6px;
  color: var(--cs-text-muted);
  font-size: 12px;
  line-height: 1.45;
}

/* -------- Focus rings ---------------------------------------------------- */
.chartscha-app :focus-visible {
  outline: 2px solid var(--cs-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.chartscha-app .btn:focus-visible,
.chartscha-app .chartscha-suggestion:focus-visible {
  outline: none;
  box-shadow: var(--cs-ring);
  border-color: var(--cs-accent);
}

/* -------- Icon helpers --------------------------------------------------- */
.cs-icon {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* sparkle icon mask used by suggestion bullets */
.chartscha-app {
  --cs-icon-spark: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M12 3l1.8 4.6L18 9l-4.2 1.4L12 15l-1.8-4.6L6 9l4.2-1.4z'/><path d='M19 14l.9 2.1L22 17l-2.1.9L19 20l-.9-2.1L16 17l2.1-.9z'/></svg>");
}

/* -------- Responsive ---------------------------------------------------- */
@media (max-width: 1024px) {
  .chartscha-app { padding: 12px; }

  .chartscha-shell {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .chartscha-column-chat {
    min-height: auto;
    max-height: min(70vh, 560px);
  }

  .chartscha-toolbar { gap: 4px; }

  .chartscha-app .btn-primary span { display: none; }
}

@media (max-width: 560px) {
  .chartscha-header { padding: 12px 14px; }
  .chartscha-messages { padding: 14px; }
  .chartscha-input-area,
  .chartscha-suggestions,
  .chartscha-panels { padding: 12px 14px; }
  .chartscha-tablist { padding: 0 12px; }
}

/* -------- Reduced motion ------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .chartscha-app *,
  .chartscha-app *::before,
  .chartscha-app *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}