/* ==========================================================
   Midas CRM — Email Panel & Reader Styles
   Premium floating compose panel + split-pane reading view

   Based on UX designer specs:
   - Superhuman-inspired interactions
   - Spring physics animations
   - Gold accent system
   ========================================================== */

/* ── CSS Custom Properties for Email Panel ─────────────────── */
:root {
  --panel-width: 480px;
  --panel-radius: 14px;
  --panel-shadow: 0 8px 32px rgba(0,0,0,0.15), 0 2px 8px rgba(0,0,0,0.08);
  --panel-z: 210;

  --spring-open: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-close: cubic-bezier(0.4, 0, 1, 1);
  --ease-hover: cubic-bezier(0, 0, 0.2, 1);

  --textarea-min: 120px;
  --textarea-max: 400px;

  --split-list-width: 320px;
}

/* ── Centred Floating Compose Card ────────────────────────── */

.email-panel-container {
  position: fixed;
  inset: 0;
  z-index: var(--panel-z);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.email-panel-container.is-visible {
  pointer-events: auto;
}

/* Soft backdrop */
.email-panel-container.is-visible::before {
  content: '';
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  pointer-events: auto;
  animation: backdropFadeIn 0.25s ease forwards;
}

@keyframes backdropFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.email-panel {
  position: relative;
  width: 100%;
  max-width: 560px;
  max-height: 75vh;
  background: var(--bg, #FFFFFF);
  border-radius: 18px;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.18),
    0 4px 16px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  pointer-events: auto;
  transform-origin: center center;

  /* Initial state */
  opacity: 0;
  transform: translateY(20px) scale(0.97);
}

.email-panel.is-open {
  animation: panelFloatIn 300ms var(--spring-open) forwards;
}

.email-panel.is-closing {
  animation: panelFloatOut 200ms var(--ease-close) forwards;
}

@keyframes panelFloatIn {
  0% {
    opacity: 0;
    transform: translateY(20px) scale(0.97);
  }
  60% {
    opacity: 1;
    transform: translateY(-4px) scale(1.01);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes panelFloatOut {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(12px) scale(0.97);
  }
}

/* ── Panel Header ──────────────────────────────────────────── */

.email-panel-header {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0;
  flex-shrink: 0;
  border-bottom: 1px solid var(--border, #E8E2D8);
}

/* Drag handle — slim gold bar at top */
.email-panel-drag-handle {
  width: 40px;
  height: 4px;
  background: var(--gold, #D4A843);
  border-radius: 2px;
  margin: 8px auto 4px;
  opacity: 0.5;
}

/* Slim header row — To + close button */
.email-panel-header-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px 8px;
}

.email-panel-title {
  flex: 1;
  font-size: 12px;
  font-weight: 600;
  color: var(--light-gray, #8C7E6A);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.email-panel-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

.email-panel-btn {
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 150ms var(--ease-hover);
}

.email-panel-btn svg {
  width: 16px;
  height: 16px;
  stroke: rgba(255,255,255,0.7);
  stroke-width: 2;
  fill: none;
}

.email-panel-btn:hover {
  background: rgba(255,255,255,0.1);
}

.email-panel-btn:hover svg {
  stroke: #FFFFFF;
}

/* ── Panel Body ────────────────────────────────────────────── */

.email-panel-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 8px 16px 12px;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}

/* To field */
.email-panel-to {
  display: flex;
  align-items: center;
  gap: 8px;
}

.email-panel-to-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--light-gray, #8C7E6A);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  min-width: 48px;
}

.email-panel-to-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 14px;
  color: var(--dark-gray, #2C2418);
  outline: none;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: border-color 150ms var(--ease-hover);
}

.email-panel-to-input:focus {
  border-bottom-color: var(--gold, #D4A843);
}

.email-panel-to-input::placeholder {
  color: var(--light-gray, #8C7E6A);
  opacity: 0.6;
}

/* Subject field */
.email-panel-subject {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border, #E8E2D8);
}

.email-panel-subject-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--light-gray, #8C7E6A);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  min-width: 48px;
}

.email-panel-subject-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 14px;
  font-weight: 500;
  color: var(--dark-gray, #2C2418);
  outline: none;
  padding: 6px 0;
}

.email-panel-subject-input::placeholder {
  color: var(--light-gray, #8C7E6A);
  opacity: 0.6;
}

/* ── Template Pill Bar ─────────────────────────────────────── */

.template-pill-bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 0;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.template-pill-bar::-webkit-scrollbar {
  display: none;
}

.template-pill {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 14px;
  border-radius: 16px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  transition: all 150ms var(--ease-hover);
  border: 1.5px solid var(--border, #E8E2D8);
  background: transparent;
  color: var(--dark-gray, #2C2418);
  flex-shrink: 0;
}

.template-pill:hover {
  border-color: var(--gold, #D4A843);
  color: var(--gold, #D4A843);
}

.template-pill.is-active {
  background: var(--gold, #D4A843);
  border-color: var(--gold, #D4A843);
  color: var(--teal, #0E0C09);
  box-shadow: 0 2px 8px rgba(212, 168, 67, 0.25);
}

/* Ghost "Blank" pill */
.template-pill.is-ghost {
  border-style: dashed;
  border-color: var(--light-gray, #8C7E6A);
  color: var(--light-gray, #8C7E6A);
}

.template-pill.is-ghost:hover {
  border-color: var(--gold, #D4A843);
  color: var(--gold, #D4A843);
}

.template-pill.is-ghost.is-active {
  border-style: solid;
  background: transparent;
  border-color: var(--gold, #D4A843);
  color: var(--gold, #D4A843);
  box-shadow: none;
}

/* ── Auto-Expanding Textarea ───────────────────────────────── */

.email-panel-textarea-wrapper {
  position: relative;
  flex: 1;
  min-height: var(--textarea-min);
}

.email-panel-textarea {
  width: 100%;
  min-height: var(--textarea-min);
  max-height: var(--textarea-max);
  padding: 14px 16px;
  border: 1.5px solid var(--border, #E8E2D8);
  border-radius: 10px;
  background: var(--teal-pale, #F8F3EA);
  font-family: inherit;
  font-size: 14px;
  line-height: 1.6;
  color: var(--dark-gray, #2C2418);
  resize: none;
  outline: none;
  transition: border-color 150ms var(--ease-hover), box-shadow 150ms var(--ease-hover);
  overflow-y: auto;
}

.email-panel-textarea::placeholder {
  color: var(--light-gray, #8C7E6A);
  opacity: 0.7;
}

.email-panel-textarea:focus {
  border-color: var(--gold, #D4A843);
  box-shadow: 0 0 0 3px rgba(212, 168, 67, 0.15), 0 0 12px rgba(212, 168, 67, 0.08);
}

/* Breathing glow after sustained focus (2s delay) */
.email-panel-textarea.has-focus-glow {
  animation: textareaBreathingGlow 3s ease-in-out infinite;
}

@keyframes textareaBreathingGlow {
  0%, 100% {
    box-shadow: 0 0 0 3px rgba(212, 168, 67, 0.15), 0 0 12px rgba(212, 168, 67, 0.08);
  }
  50% {
    box-shadow: 0 0 0 4px rgba(212, 168, 67, 0.2), 0 0 20px rgba(212, 168, 67, 0.12);
  }
}

/* ── Merge Field Chips ─────────────────────────────────────── */

.merge-chip-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px 0;
}

.merge-chip-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--light-gray, #8C7E6A);
  margin-right: 4px;
  align-self: center;
}

.merge-chip {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 10px;
  border-radius: 13px;
  font-size: 11px;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-weight: 500;
  background: rgba(212, 168, 67, 0.12);
  color: var(--gold-mid, #B8902E);
  border: 1px solid rgba(212, 168, 67, 0.25);
  cursor: pointer;
  transition: all 150ms var(--ease-hover);
  user-select: none;
}

.merge-chip:hover {
  background: rgba(212, 168, 67, 0.2);
  border-color: var(--gold, #D4A843);
  transform: translateY(-1px);
}

.merge-chip:active {
  transform: scale(0.95);
}

.merge-chip.just-inserted {
  animation: chipFlash 300ms ease-out;
}

@keyframes chipFlash {
  0% {
    background: var(--gold, #D4A843);
    color: var(--teal, #0E0C09);
  }
  100% {
    background: rgba(212, 168, 67, 0.12);
    color: var(--gold-mid, #B8902E);
  }
}

/* ── Panel Footer ──────────────────────────────────────────── */

.email-panel-footer {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  padding: 10px 16px 14px;
  background: var(--bg, #FFFFFF);
  flex-shrink: 0;
}

.email-panel-signature-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--light-gray, #8C7E6A);
  cursor: pointer;
  user-select: none;
}

.email-panel-signature-toggle input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--gold, #D4A843);
  cursor: pointer;
}

.email-panel-send-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  min-width: 40px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: var(--gold, #D4A843);
  color: var(--teal, #0E0C09);
  cursor: pointer;
  transition: all 150ms var(--ease-hover);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.email-panel-send-btn svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2.5;
  fill: none;
}

/* Hide text label, icon only */
.email-panel-send-btn .send-label { display: none; }

.email-panel-send-btn:hover {
  background: var(--gold-light, #E2BE5E);
  transform: scale(1.08);
  box-shadow: 0 4px 16px rgba(212, 168, 67, 0.35);
}

.email-panel-send-btn:active {
  transform: scale(0.95);
}

.email-panel-send-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Send button animation states */
.email-panel-send-btn .send-text {
  transition: opacity 150ms ease-out;
}

.email-panel-send-btn .send-check {
  position: absolute;
  opacity: 0;
  transform: scale(0);
  transition: all 150ms ease-out;
}

.email-panel-send-btn.is-sending .send-text {
  opacity: 0;
}

.email-panel-send-btn.is-sending .send-check {
  opacity: 1;
  transform: scale(1);
}

.email-panel-send-btn.is-success {
  animation: sendPulse 200ms ease-out 150ms;
}

@keyframes sendPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(212, 168, 67, 0.6);
  }
  100% {
    box-shadow: 0 0 0 12px rgba(212, 168, 67, 0);
  }
}

/* Keyboard hint */
.email-panel-keyboard-hint {
  font-size: 11px;
  color: var(--light-gray, #8C7E6A);
  opacity: 0.7;
  margin-left: 8px;
}

/* ── Minimized Pill ────────────────────────────────────────── */

.email-panel-minimized {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: var(--panel-z);
  display: flex;
  align-items: center;
  gap: 10px;
  height: 44px;
  padding: 0 16px;
  background: var(--teal, #0E0C09);
  border-radius: 22px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  transition: all 150ms var(--ease-hover);
  pointer-events: auto;
}

.email-panel-minimized:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.email-panel-minimized-icon {
  width: 18px;
  height: 18px;
  stroke: var(--gold, #D4A843);
  stroke-width: 2;
  fill: none;
}

.email-panel-minimized-text {
  font-size: 13px;
  font-weight: 500;
  color: #FFFFFF;
  white-space: nowrap;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.email-panel-minimized-close {
  width: 20px;
  height: 20px;
  border: none;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: 4px;
  transition: background 150ms var(--ease-hover);
}

.email-panel-minimized-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.email-panel-minimized-close svg {
  width: 12px;
  height: 12px;
  stroke: rgba(255, 255, 255, 0.7);
  stroke-width: 2;
  fill: none;
}

/* Minimized pill entrance animation */
.email-panel-minimized.is-entering {
  animation: minimizedEnter 280ms var(--spring-open) forwards;
}

@keyframes minimizedEnter {
  0% {
    opacity: 0;
    transform: translateY(20px) scale(0.9);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ── Undo Send Toast ───────────────────────────────────────── */

.undo-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  z-index: 220;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: var(--teal, #0E0C09);
  border-radius: 28px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  opacity: 0;
  pointer-events: none;
  transition: none;
}

.undo-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
  animation: toastEnter 280ms var(--spring-open) forwards;
}

.undo-toast.is-hiding {
  animation: toastExit 200ms var(--ease-close) forwards;
}

@keyframes toastEnter {
  0% {
    opacity: 0;
    transform: translateX(-50%) translateY(40px) scale(0.95);
  }
  60% {
    transform: translateX(-50%) translateY(-4px) scale(1.02);
  }
  100% {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1);
  }
}

@keyframes toastExit {
  0% {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(20px) scale(0.95);
  }
}

.undo-toast-countdown {
  position: relative;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.undo-toast-countdown svg {
  width: 32px;
  height: 32px;
  transform: rotate(-90deg);
}

.undo-toast-countdown-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.15);
  stroke-width: 3;
}

.undo-toast-countdown-progress {
  fill: none;
  stroke: var(--gold, #D4A843);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 88;
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 1s linear;
}

.undo-toast-message {
  font-size: 14px;
  font-weight: 500;
  color: #FFFFFF;
  flex: 1;
}

.undo-toast-btn {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 16px;
  border: none;
  border-radius: 16px;
  background: var(--gold, #D4A843);
  color: var(--teal, #0E0C09);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 150ms var(--ease-hover);
}

.undo-toast-btn:hover {
  background: var(--gold-light, #E2BE5E);
}

/* ── Split-Pane Email View ─────────────────────────────────── */

.email-split {
  display: flex;
  height: 100%;
  min-height: 400px;
  border: 1px solid var(--border, #E8E2D8);
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg, #FFFFFF);
}

/* List panel (left) */
.email-split-list {
  width: var(--split-list-width);
  border-right: 1px solid var(--border, #E8E2D8);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  background: var(--bg, #FFFFFF);
}

.email-split-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border, #E8E2D8);
  flex-shrink: 0;
}

.email-split-list-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--dark-gray, #2C2418);
}

.email-split-list-count {
  font-size: 11px;
  font-weight: 600;
  color: var(--light-gray, #8C7E6A);
  background: var(--teal-pale, #F8F3EA);
  padding: 2px 8px;
  border-radius: 10px;
}

.email-split-list-body {
  flex: 1;
  overflow-y: auto;
}

/* Email row in list */
.email-split-row {
  display: flex;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-light, #F0EBE2);
  cursor: pointer;
  transition: background 150ms var(--ease-hover);
  position: relative;
}

.email-split-row:hover {
  background: var(--teal-pale, #F8F3EA);
}

.email-split-row.is-selected {
  background: rgba(212, 168, 67, 0.08);
  border-left: 3px solid var(--gold, #D4A843);
  padding-left: 13px;
}

.email-split-row.is-unread .email-split-row-subject {
  font-weight: 700;
}

.email-split-row.is-unread {
  background: rgba(212, 168, 67, 0.04);
}

.email-split-row-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--teal, #0E0C09);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.email-split-row-avatar.is-outbound {
  background: var(--gold, #D4A843);
  color: var(--teal, #0E0C09);
}

.email-split-row-content {
  flex: 1;
  min-width: 0;
}

.email-split-row-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 2px;
}

.email-split-row-from {
  font-size: 13px;
  font-weight: 600;
  color: var(--dark-gray, #2C2418);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.email-split-row-time {
  font-size: 11px;
  color: var(--light-gray, #8C7E6A);
  white-space: nowrap;
  flex-shrink: 0;
}

.email-split-row-subject {
  font-size: 13px;
  color: var(--dark-gray, #2C2418);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 2px;
}

.email-split-row-preview {
  font-size: 12px;
  color: var(--light-gray, #8C7E6A);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Quick action icons on hover */
.email-split-row-actions {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity 150ms var(--ease-hover);
}

.email-split-row:hover .email-split-row-actions {
  opacity: 1;
}

.email-split-row-action-btn {
  width: 28px;
  height: 28px;
  border: none;
  background: var(--bg, #FFFFFF);
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
  transition: all 150ms var(--ease-hover);
}

.email-split-row-action-btn:hover {
  background: var(--gold, #D4A843);
}

.email-split-row-action-btn svg {
  width: 14px;
  height: 14px;
  stroke: var(--dark-gray, #2C2418);
  stroke-width: 2;
  fill: none;
}

.email-split-row-action-btn:hover svg {
  stroke: var(--teal, #0E0C09);
}

/* Reading pane (right) */
.email-split-reader {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

.email-split-reader-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--light-gray, #8C7E6A);
  text-align: center;
  padding: 40px;
}

.email-split-reader-empty svg {
  width: 48px;
  height: 48px;
  stroke: var(--border, #E8E2D8);
  stroke-width: 1.5;
  fill: none;
}

.email-split-reader-empty p {
  font-size: 14px;
  margin: 0;
}

/* Reader content */
.email-split-reader-content {
  flex: 1;
  overflow-y: auto;
  animation: readerSlideIn 200ms ease-out;
}

@keyframes readerSlideIn {
  0% {
    opacity: 0;
    transform: translateX(20px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

.email-split-reader-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border, #E8E2D8);
}

.email-split-reader-subject {
  font-size: 18px;
  font-weight: 600;
  color: var(--dark-gray, #2C2418);
  margin-bottom: 12px;
  line-height: 1.3;
}

.email-split-reader-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.email-split-reader-meta-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
}

.email-split-reader-meta-label {
  color: var(--light-gray, #8C7E6A);
  min-width: 40px;
}

.email-split-reader-meta-value {
  color: var(--dark-gray, #2C2418);
}

.email-split-reader-time {
  font-size: 12px;
  color: var(--light-gray, #8C7E6A);
  margin-top: 8px;
}

.email-split-reader-body {
  padding: 24px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--dark-gray, #2C2418);
  white-space: pre-wrap;
}

/* Thread toggle */
.email-split-thread-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--teal-pale, #F8F3EA);
  border-top: 1px solid var(--border, #E8E2D8);
  border-bottom: 1px solid var(--border, #E8E2D8);
  cursor: pointer;
  transition: background 150ms var(--ease-hover);
}

.email-split-thread-toggle:hover {
  background: rgba(212, 168, 67, 0.1);
}

.email-split-thread-toggle svg {
  width: 16px;
  height: 16px;
  stroke: var(--gold, #D4A843);
  stroke-width: 2;
  fill: none;
  transition: transform 200ms var(--ease-hover);
}

.email-split-thread-toggle.is-expanded svg {
  transform: rotate(180deg);
}

.email-split-thread-toggle-text {
  font-size: 13px;
  font-weight: 500;
  color: var(--gold-mid, #B8902E);
}

.email-split-thread-messages {
  max-height: 0;
  overflow: hidden;
  transition: max-height 300ms var(--ease-hover);
}

.email-split-thread-messages.is-expanded {
  max-height: 2000px;
}

.email-split-thread-message {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-light, #F0EBE2);
  background: var(--teal-pale, #F8F3EA);
}

.email-split-thread-message:last-child {
  border-bottom: none;
}

/* ── Inline Reply ──────────────────────────────────────────── */

.email-inline-reply {
  margin: 16px 24px 24px;
  padding: 16px;
  background: var(--teal-pale, #F8F3EA);
  border-radius: 12px;
  border: 1px solid var(--border, #E8E2D8);
  animation: inlineReplyExpand 280ms var(--spring-open);
}

@keyframes inlineReplyExpand {
  0% {
    opacity: 0;
    transform: scaleY(0.9);
    transform-origin: top;
  }
  100% {
    opacity: 1;
    transform: scaleY(1);
  }
}

.email-inline-reply-textarea {
  width: 100%;
  min-height: 100px;
  padding: 12px 14px;
  border: 1.5px solid var(--border, #E8E2D8);
  border-radius: 8px;
  background: var(--bg, #FFFFFF);
  font-family: inherit;
  font-size: 14px;
  line-height: 1.6;
  color: var(--dark-gray, #2C2418);
  resize: none;
  outline: none;
  transition: border-color 150ms var(--ease-hover), box-shadow 150ms var(--ease-hover);
}

.email-inline-reply-textarea::placeholder {
  color: var(--light-gray, #8C7E6A);
  opacity: 0.7;
}

.email-inline-reply-textarea:focus {
  border-color: var(--gold, #D4A843);
  box-shadow: 0 0 0 3px rgba(212, 168, 67, 0.15), 0 0 12px rgba(212, 168, 67, 0.08);
}

.email-inline-reply-actions {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}

.email-inline-reply-send {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 34px;
  padding: 0 16px;
  border: none;
  border-radius: 6px;
  background: var(--gold, #D4A843);
  color: var(--teal, #0E0C09);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 150ms var(--ease-hover);
}

.email-inline-reply-send:hover {
  background: var(--gold-light, #E2BE5E);
}

.email-inline-reply-cancel {
  display: inline-flex;
  align-items: center;
  height: 34px;
  padding: 0 16px;
  border: 1px solid var(--border, #E8E2D8);
  border-radius: 6px;
  background: transparent;
  color: var(--light-gray, #8C7E6A);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 150ms var(--ease-hover);
}

.email-inline-reply-cancel:hover {
  border-color: var(--light-gray, #8C7E6A);
  color: var(--dark-gray, #2C2418);
}

/* ── Responsive: Tablet ────────────────────────────────────── */

@media (max-width: 1199px) {
  :root {
    --panel-width: 420px;
    --split-list-width: 260px;
  }
}

/* Narrow tablet: split-pane becomes stacked */
@media (max-width: 1023px) {
  .email-split {
    flex-direction: column;
  }

  .email-split-list {
    width: 100%;
    max-height: 300px;
    border-right: none;
    border-bottom: 1px solid var(--border, #E8E2D8);
  }

  .email-split-reader {
    min-height: 400px;
  }

  .email-split.has-selection .email-split-list {
    display: none;
  }

  .email-split.has-selection .email-split-reader-back {
    display: flex;
  }

  .email-split-reader-back {
    display: none;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border, #E8E2D8);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    color: var(--gold-mid, #B8902E);
  }

  .email-split-reader-back svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
  }
}

/* Mobile: full-width bottom sheet */
@media (max-width: 767px) {
  :root {
    --panel-width: 100%;
  }

  .email-panel-container {
    bottom: 0;
    right: 0;
    left: 0;
    padding: 0;
  }

  .email-panel {
    width: 100%;
    max-height: 85vh;
    border-radius: var(--panel-radius) var(--panel-radius) 0 0;
  }

  .email-panel-minimized {
    left: 16px;
    right: 16px;
    width: auto;
    justify-content: center;
  }

  .email-split {
    flex-direction: column;
  }

  .email-split-list {
    width: 100%;
    border-right: none;
  }

  .email-split.has-selection .email-split-list {
    display: none;
  }
}

/* ── Dark Mode ─────────────────────────────────────────────── */

.dash-dark .email-panel {
  background: rgba(30, 26, 20, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 4px 16px rgba(0, 0, 0, 0.3);
}

.dash-dark .email-panel-header {
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.dash-dark .email-panel-drag-handle {
  background: rgba(212, 168, 67, 0.5);
}

.dash-dark .email-panel-footer {
  background: rgba(20, 17, 12, 0.95);
}

.dash-dark .email-panel-to-input,
.dash-dark .email-panel-subject-input {
  color: #EEEEF2;
}

.dash-dark .email-panel-to-input::placeholder,
.dash-dark .email-panel-subject-input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.dash-dark .email-panel-subject {
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.dash-dark .template-pill {
  border-color: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.8);
}

.dash-dark .template-pill:hover {
  border-color: var(--gold, #D4A843);
  color: var(--gold, #D4A843);
}

.dash-dark .template-pill.is-ghost {
  border-color: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.5);
}

.dash-dark .email-panel-textarea {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  color: #EEEEF2;
}

.dash-dark .email-panel-textarea::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.dash-dark .email-panel-textarea:focus {
  border-color: var(--gold, #D4A843);
  box-shadow: 0 0 0 3px rgba(212, 168, 67, 0.2), 0 0 16px rgba(212, 168, 67, 0.1);
}

.dash-dark .merge-chip {
  background: rgba(212, 168, 67, 0.15);
  border-color: rgba(212, 168, 67, 0.3);
  color: var(--gold, #D4A843);
}

.dash-dark .merge-chip:hover {
  background: rgba(212, 168, 67, 0.25);
}

.dash-dark .email-panel-footer {
  background: rgba(30, 26, 20, 0.98);
  border-top-color: rgba(255, 255, 255, 0.1);
}

.dash-dark .email-panel-signature-toggle {
  color: rgba(255, 255, 255, 0.6);
}

.dash-dark .email-split {
  background: rgba(30, 26, 20, 0.98);
  border-color: rgba(255, 255, 255, 0.1);
}

.dash-dark .email-split-list {
  background: rgba(30, 26, 20, 0.98);
  border-right-color: rgba(255, 255, 255, 0.1);
}

.dash-dark .email-split-list-header {
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.dash-dark .email-split-list-title {
  color: #EEEEF2;
}

.dash-dark .email-split-list-count {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.6);
}

.dash-dark .email-split-row {
  border-bottom-color: rgba(255, 255, 255, 0.06);
}

.dash-dark .email-split-row:hover {
  background: rgba(255, 255, 255, 0.06);
}

.dash-dark .email-split-row.is-selected {
  background: rgba(212, 168, 67, 0.12);
}

.dash-dark .email-split-row.is-unread {
  background: rgba(212, 168, 67, 0.06);
}

.dash-dark .email-split-row-from,
.dash-dark .email-split-row-subject {
  color: #EEEEF2;
}

.dash-dark .email-split-row-avatar {
  background: rgba(255, 255, 255, 0.1);
}

.dash-dark .email-split-row-action-btn {
  background: rgba(30, 26, 20, 0.95);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.dash-dark .email-split-row-action-btn svg {
  stroke: rgba(255, 255, 255, 0.8);
}

.dash-dark .email-split-reader-empty {
  color: rgba(255, 255, 255, 0.5);
}

.dash-dark .email-split-reader-empty svg {
  stroke: rgba(255, 255, 255, 0.2);
}

.dash-dark .email-split-reader-header {
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.dash-dark .email-split-reader-subject {
  color: #EEEEF2;
}

.dash-dark .email-split-reader-meta-value {
  color: rgba(255, 255, 255, 0.8);
}

.dash-dark .email-split-reader-body {
  color: rgba(255, 255, 255, 0.85);
}

.dash-dark .email-split-thread-toggle {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.08);
}

.dash-dark .email-split-thread-toggle:hover {
  background: rgba(212, 168, 67, 0.1);
}

.dash-dark .email-split-thread-message {
  background: rgba(255, 255, 255, 0.03);
  border-bottom-color: rgba(255, 255, 255, 0.06);
}

.dash-dark .email-inline-reply {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.1);
}

.dash-dark .email-inline-reply-textarea {
  background: rgba(30, 26, 20, 0.95);
  border-color: rgba(255, 255, 255, 0.12);
  color: #EEEEF2;
}

.dash-dark .email-inline-reply-textarea::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.dash-dark .email-inline-reply-cancel {
  border-color: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.6);
}

.dash-dark .email-inline-reply-cancel:hover {
  border-color: rgba(255, 255, 255, 0.3);
  color: rgba(255, 255, 255, 0.8);
}

/* ── Send Animation Content Fade ───────────────────────────── */

.email-panel-body.is-sending {
  animation: contentFadeUp 200ms ease-in forwards;
}

@keyframes contentFadeUp {
  0% {
    opacity: 1;
    transform: translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateY(-20px);
  }
}

/* Panel collapse after send */
.email-panel.is-collapsing {
  animation: panelCollapse 150ms var(--ease-close) 200ms forwards;
}

@keyframes panelCollapse {
  0% {
    opacity: 1;
    transform: scaleY(1);
    transform-origin: bottom;
  }
  100% {
    opacity: 0;
    transform: scaleY(0);
  }
}

/* ── Simulated Badge in Panel ──────────────────────────────── */

.email-panel-sim-badge {
  font-size: 10px;
  font-weight: 600;
  color: var(--warning, #F39C12);
  background: rgba(243, 156, 18, 0.12);
  border: 1px solid rgba(243, 156, 18, 0.25);
  border-radius: 12px;
  padding: 2px 8px;
  white-space: nowrap;
  margin-left: auto;
}

.dash-dark .email-panel-sim-badge {
  background: rgba(243, 156, 18, 0.15);
  border-color: rgba(243, 156, 18, 0.3);
}