* {
  box-sizing: border-box;
}


:root {
  --font-sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;


  /* Panel sizing: target width 260px, fully fluid (no cap) */
  --panel-width: 260px;
  --panel-min-height: 452px;


  /* ===== LIGHT THEME (figma-matched) =====
     Swap these hex values later for exact ALLPLAN colors. */
  --page-bg: #f4f6f9;
  --panel-bg: #f4f6f9;
  --card-bg: #ffffff;
  --input-bg: #ffffff;


  --text: #2b333d;
  --title-text: #2b333d;
  --muted: #6b7682;


  --border: #d8dee7;
  --border-strong: #c7cfdb;
  --ring: #9fb2cb;
  --focus: #8aa0bf;
  --divider: #e2e7ee;


  /* Soft light button (figma style) */
  --button-bg: #e7ecf3;
  --button-bg-hover: #dde4ee;
  --button-text: #2b333d;
  --button-border: #d2dae5;


  /* Alert (cream) */
  --warn-bg: #f7f1da;
  --warn-border: #e6d9a8;
  --warn-text: #5f5326;


  /* Badge */
  --accent-bg: #e4ecf7;
  --accent-text: #345a8a;
  --accent-border: #cdddef;


  /* Status */
  --success-color: #2f9e6f;
  --success-border: rgba(76, 175, 125, 0.35);
  --error-color: #c0392b;
  --error-border: rgba(224, 107, 107, 0.35);
  --info-color: #2563eb;
  --info-border: rgba(147, 197, 253, 0.4);


  --rating-up: #4caf7d;
  --rating-down: #e06b6b;


  --toast-bg: #ffffff;
  --toast-shadow: 0 8px 24px rgba(30, 60, 90, 0.14);
  --panel-shadow: 0 1px 3px rgba(30, 60, 90, 0.06);
}


/* ===== DARK THEME (compatible placeholder, refine later) ===== */
html[data-theme="dark"] {
  --page-bg: #16181d;
  --panel-bg: #1a1d23;
  --card-bg: #2c2d31;
  --input-bg: #2c2d31;


  --text: #e8eaed;
  --title-text: #ffffff;
  --muted: #9aa0a6;


  --border: #3a3c42;
  --border-strong: #494c53;
  --ring: #5a5d64;
  --focus: #7d8893;
  --divider: #2a2c31;


  --button-bg: #2c2d31;
  --button-bg-hover: #3a3c42;
  --button-text: #e8eaed;
  --button-border: #3a3c42;


  --warn-bg: rgba(234, 199, 86, 0.10);
  --warn-border: rgba(234, 199, 86, 0.30);
  --warn-text: #e3cf8f;


  --accent-bg: #26303d;
  --accent-text: #8fb6e6;
  --accent-border: #33414f;


  --success-color: #56c596;
  --success-border: rgba(86, 197, 150, 0.3);
  --error-color: #ef8a80;
  --error-border: rgba(239, 138, 128, 0.3);
  --info-color: #6ea8fe;
  --info-border: rgba(110, 168, 254, 0.3);


  --rating-up: #56c596;
  --rating-down: #ef8a80;


  --toast-bg: #2c2d31;
  --toast-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  --panel-shadow: 0 1px 3px rgba(0, 0, 0, 0.45);
}


html, body {
  height: 100%;
}


body {
  margin: 0;
  min-height: 100vh;
  background: var(--page-bg);
  color: var(--text);
  font-family: var(--font-sans);
  display: flex;
  justify-content: flex-start;
  align-items: stretch;
}


/* ===================== PANEL (3-zone layout) ===================== */
/* Fully fluid: fills the host panel at any width, no max cap, left-aligned. */
.panel {
  width: 100%;
  min-height: var(--panel-min-height);
  height: 100vh;
  margin: 0;
  background: var(--panel-bg);
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: var(--panel-shadow);
}


/* ---- Fixed header ---- */
.panel-header {
  flex: 0 0 auto;
  padding: 0.85rem 0.85rem 0.6rem;
  border-bottom: 1px solid var(--divider);
}


.header-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}


.title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--title-text);
  line-height: 1.25;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}


.title-text {
  display: inline;
}


.badge {
  display: inline-block;
  padding: 0.08rem 0.4rem;
  font-size: 0.58rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: 4px;
  background: var(--accent-bg);
  color: var(--accent-text);
  border: 1px solid var(--accent-border);
  white-space: nowrap;
}


.subtitle {
  margin: 0.3rem 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.35;
}


/* ---- Theme button ---- */
.theme-button {
  flex: 0 0 auto;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  border-radius: 999px;
  width: 1.85rem;
  height: 1.85rem;
  cursor: pointer;
  display: grid;
  place-items: center;
  padding: 0;
}


/* ---- Alert / Prototype limitations (collapsible) ---- */
.alert-box {
  margin-top: 0.7rem;
  border-radius: 8px;
  border: 1px solid var(--warn-border);
  background: var(--warn-bg);
  color: var(--warn-text);
  overflow: hidden;
}


.alert-header {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.6rem;
  background: transparent;
  border: 0;
  cursor: pointer;
  color: inherit;
  font-family: var(--font-sans);
  text-align: left;
}


.alert-title {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 600;
  flex: 1;
}


.alert-chevron {
  transition: transform 0.2s ease;
}


.alert-list {
  margin: 0;
  padding: 0 0.85rem 0.6rem 1.6rem;
  display: grid;
  gap: 0.28rem;
  font-size: 0.74rem;
}


.alert-item {
  line-height: 1.4;
}


/* Collapsed state */
.alert-box[data-collapsed="true"] .alert-list {
  display: none;
}
.alert-box[data-collapsed="true"] .alert-chevron {
  transform: rotate(-90deg);
}


/* ---- Scrollable middle ---- */
.panel-body {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 0.8rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}


/* ---- Form ---- */
.form {
  display: grid;
  gap: 0.4rem;
}


.label,
.feedback-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
}


.textarea {
  width: 100%;
  min-height: 64px;
  resize: vertical;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  font-size: 0.82rem;
  font-family: var(--font-sans);
  padding: 0.55rem 0.6rem;
  outline-color: var(--ring);
  line-height: 1.4;
}


.form-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.1rem;
}


.generate-button {
  border: 1px solid var(--button-border);
  border-radius: 7px;
  background: var(--button-bg);
  color: var(--button-text);
  padding: 0.5rem 1.1rem;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: background 0.15s ease;
}


.generate-button:hover:not(:disabled) {
  background: var(--button-bg-hover);
}


.generate-button:disabled,
.copy-button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}


.error-message {
  margin: 0;
  color: var(--error-color);
  font-weight: 600;
  font-size: 0.78rem;
  text-align: center;
}


/* ---- Results ---- */
.results-section {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  transition: opacity 0.2s ease-in-out;
}


.block-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.32rem;
}


.block-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}


.block-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}


.block-title {
  margin: 0;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
}


.result-card {
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  padding: 0.55rem 0.65rem;
}


.copy-button {
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  width: 1.7rem;
  height: 1.7rem;
  display: grid;
  place-items: center;
  padding: 0;
  cursor: pointer;
}


.copy-button:hover:not(:disabled) {
  background: var(--button-bg);
}


.card-body {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text);
}


.card-body-mono {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.45;
}


.card-body-text {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  line-height: 1.5;
}


/* ---- Details (collapsible) ---- */
.details-box {
  border-top: 1px solid var(--divider);
  padding-top: 0.7rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}


.details-header {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0;
  background: transparent;
  border: 0;
  cursor: pointer;
  color: var(--text);
  font-family: var(--font-sans);
  text-align: left;
}


.details-title {
  font-size: 0.82rem;
  font-weight: 600;
}


.details-chevron {
  transition: transform 0.2s ease;
}


.details-content {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}


.details-box[data-collapsed="true"] .details-content {
  display: none;
}
.details-box[data-collapsed="true"] .details-chevron {
  transform: rotate(-90deg);
}


/* ---- Fixed footer ---- */
.panel-footer {
  flex: 0 0 auto;
  border-top: 1px solid var(--divider);
  background: var(--panel-bg);
  display: flex;
  flex-direction: column;
  /* never let the footer exceed ~half the panel; its form scrolls if needed */
  max-height: 60vh;
}


.rating-row {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.55rem 0.85rem;
}


.rating-actions-inline {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}


.rating-button {
  border: none;
  background: transparent;
  color: var(--muted);
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  padding: 0;
  cursor: pointer;
  line-height: 1;
  transition: color 0.2s ease, filter 0.2s ease;
}


.rating-button .icon svg {
  width: 1.3rem;
  height: 1.3rem;
}


.rating-button:hover:not(:disabled) {
  color: var(--text);
}


.rating-button.rating-up.active-up {
  color: var(--rating-up);
}


.rating-button.rating-down.active-down {
  color: var(--rating-down);
}


.rating-button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}


.feedback-expand-button {
  border: none;
  background: transparent;
  color: var(--muted);
  width: 1.5rem;
  height: 1.5rem;
  display: grid;
  place-items: center;
  padding: 0;
  cursor: pointer;
}


.feedback-expand-button:hover {
  color: var(--text);
}


.feedback-chevron {
  transition: transform 0.2s ease;
}


/* feedback panel collapsed by default; expands upward in footer */
.feedback-form-panel {
  flex: 1 1 auto;
  overflow-y: auto;
  border-bottom: 1px solid var(--divider);
  padding: 0.75rem 0.85rem;
}


.feedback-form-panel[data-collapsed="true"] {
  display: none;
}


.feedback-form {
  display: grid;
  gap: 0.6rem;
}


.feedback-group {
  display: flex;
  flex-direction: column;
  gap: 0.28rem;
}


.feedback-textarea {
  width: 100%;
  min-height: 52px;
  resize: vertical;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  font-size: 0.78rem;
  font-family: var(--font-sans);
  padding: 0.5rem;
  outline-color: var(--ring);
}


.feedback-input {
  width: 100%;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  font-size: 0.78rem;
  font-family: var(--font-sans);
  padding: 0.45rem 0.55rem;
  outline-color: var(--ring);
}


.feedback-submit-btn {
  border: 1px solid var(--button-border);
  border-radius: 6px;
  background: var(--button-bg);
  color: var(--button-text);
  padding: 0.5rem 0.8rem;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-sans);
  white-space: nowrap;
  transition: background 0.15s ease;
}


.feedback-submit-btn:hover:not(:disabled) {
  background: var(--button-bg-hover);
}


.feedback-submit-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}


.feedback-expand-button[aria-expanded="true"] .feedback-chevron {
  transform: rotate(180deg);
}


/* ---- Toast ---- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 1rem;
  transform: translateX(-50%);
  background: var(--toast-bg);
  border-radius: 8px;
  padding: 0.55rem 0.8rem;
  font-size: 0.78rem;
  font-weight: 600;
  box-shadow: var(--toast-shadow);
  z-index: 50;
  font-family: var(--font-sans);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  animation: slideIn 0.3s ease-out;
  max-width: calc(100% - 1.5rem);
}


.toast.success {
  color: var(--success-color);
  border: 1px solid var(--success-border);
}


.toast.error {
  color: var(--error-color);
  border: 1px solid var(--error-border);
}


.toast.info {
  color: var(--info-color);
  border: 1px solid var(--info-border);
}


.toast-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}


.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}


.icon svg {
  display: block;
}


.is-hidden {
  display: none;
}


@keyframes slideIn {
  from {
    transform: translateX(-50%) translateY(10px);
    opacity: 0;
  }
  to {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
  }
}


textarea::placeholder,
input::placeholder {
  color: var(--muted);
}


textarea:focus,
input:focus,
button:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 1px;
}


/* Scrollbar polish for the two scroll zones */
.panel-body::-webkit-scrollbar,
.feedback-form-panel::-webkit-scrollbar {
  width: 8px;
}
.panel-body::-webkit-scrollbar-thumb,
.feedback-form-panel::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 8px;
}