/* ═══════════════════════════════════════════════════════════════
   EmailForge — Premium Email Signature Builder
   style.css — Core visual design system
   ═══════════════════════════════════════════════════════════════ */

/* ─── CSS DESIGN TOKENS ─────────────────────────────────────── */
:root {
  /* Accent — overridden by JS */
  --accent: #6366f1;
  --accent-dim: rgba(99, 102, 241, 0.15);
  --accent-glow: rgba(99, 102, 241, 0.3);

  /* Layout */
  --header-h: 60px;
  --panel-radius: 16px;
  --radius-sm: 8px;
  --radius-md: 12px;

  /* Typography */
  --font-display: 'Playfair Display', serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'DM Mono', monospace;

  /* Animation */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 150ms;
  --dur-med: 280ms;
  --dur-slow: 450ms;
}

/* ─── DARK THEME (default) ───────────────────────────────────── */
.dark {
  --bg: #0d0e12;
  --bg-panel: rgba(18, 19, 26, 0.85);
  --bg-input: rgba(255, 255, 255, 0.04);
  --bg-input-hover: rgba(255, 255, 255, 0.07);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --bg-email: #1a1b22;
  --bg-email-body: #13141a;

  --border: rgba(255, 255, 255, 0.08);
  --border-focus: var(--accent);
  --border-input: rgba(255, 255, 255, 0.1);

  --text-primary: #f0f0f4;
  --text-secondary: rgba(240, 240, 244, 0.55);
  --text-tertiary: rgba(240, 240, 244, 0.3);
  --text-on-accent: #fff;

  --orb-1: rgba(99, 102, 241, 0.12);
  --orb-2: rgba(168, 85, 247, 0.08);
  --orb-3: rgba(34, 197, 94, 0.06);

  --shadow: 0 0 0 1px rgba(255,255,255,0.05), 0 20px 60px rgba(0,0,0,0.5);
  --shadow-sm: 0 2px 12px rgba(0,0,0,0.3);
  --shadow-input: 0 0 0 3px var(--accent-glow);
}

/* ─── LIGHT THEME ────────────────────────────────────────────── */
html:not(.dark) {
  --bg: #f4f4f7;
  --bg-panel: rgba(255, 255, 255, 0.9);
  --bg-input: rgba(0, 0, 0, 0.03);
  --bg-input-hover: rgba(0, 0, 0, 0.06);
  --bg-glass: rgba(255, 255, 255, 0.6);
  --bg-email: #ffffff;
  --bg-email-body: #fafafa;

  --border: rgba(0, 0, 0, 0.07);
  --border-focus: var(--accent);
  --border-input: rgba(0, 0, 0, 0.1);

  --text-primary: #0f0f14;
  --text-secondary: rgba(15, 15, 20, 0.55);
  --text-tertiary: rgba(15, 15, 20, 0.3);
  --text-on-accent: #fff;

  --orb-1: rgba(99, 102, 241, 0.07);
  --orb-2: rgba(168, 85, 247, 0.05);
  --orb-3: rgba(34, 197, 94, 0.04);

  --shadow: 0 0 0 1px rgba(0,0,0,0.06), 0 20px 60px rgba(0,0,0,0.12);
  --shadow-sm: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-input: 0 0 0 3px var(--accent-glow);
}

/* ─── GLOBAL RESET ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  transition: background var(--dur-slow) var(--ease-out),
              color var(--dur-slow) var(--ease-out);
}

/* ─── ANIMATED BACKGROUND ─────────────────────────────────────── */
.ef-bg-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.ef-bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  will-change: transform;
  animation: orbFloat 20s ease-in-out infinite alternate;
}

.ef-orb-1 {
  width: 600px; height: 600px;
  background: var(--orb-1);
  top: -200px; left: -200px;
  animation-duration: 25s;
}
.ef-orb-2 {
  width: 500px; height: 500px;
  background: var(--orb-2);
  bottom: -100px; right: -100px;
  animation-duration: 30s;
  animation-direction: alternate-reverse;
}
.ef-orb-3 {
  width: 300px; height: 300px;
  background: var(--orb-3);
  top: 40%; left: 40%;
  animation-duration: 18s;
}

@keyframes orbFloat {
  0%   { transform: translate(0, 0) scale(1); }
  33%  { transform: translate(40px, -30px) scale(1.05); }
  66%  { transform: translate(-20px, 50px) scale(0.95); }
  100% { transform: translate(30px, 20px) scale(1.02); }
}

.ef-noise {
  position: absolute;
  inset: 0;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}
.dark .ef-noise { opacity: 0.04; }

/* ─── HEADER ─────────────────────────────────────────────────── */
.ef-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  background: var(--bg-glass);
  border-bottom: 1px solid var(--border);
  transition: background var(--dur-slow) var(--ease-out);
}

.ef-header-inner {
  max-width: 1440px;
  margin: 0 auto;
  height: 100%;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.ef-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  transition: opacity var(--dur-fast);
}
.ef-logo:hover { opacity: 0.8; }

.ef-logo-icon {
  color: var(--accent);
  display: flex;
  align-items: center;
  flex-shrink: 0;
  transition: color var(--dur-med);
}

.ef-logo-text { display: flex; flex-direction: column; line-height: 1; }

.ef-logo-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: var(--text-primary);
}

.ef-logo-tagline {
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-top: 1px;
}

.ef-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ─── BUTTONS — Base ─────────────────────────────────────────── */
.ef-btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--dur-fast), color var(--dur-fast);
  white-space: nowrap;
}
.ef-btn-ghost:hover {
  background: var(--bg-input);
  color: var(--text-primary);
}
.ef-btn-ghost:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.ef-btn-link {
  background: none;
  border: none;
  color: var(--accent);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  transition: opacity var(--dur-fast);
}
.ef-btn-link:hover { opacity: 0.7; }

.ef-btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  border: 1px solid var(--border-input);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--dur-fast), border-color var(--dur-fast);
}
.ef-btn-secondary:hover {
  background: var(--bg-input-hover);
  border-color: var(--accent);
}

.ef-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  background: var(--accent);
  border: none;
  color: var(--text-on-accent);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--dur-fast), transform var(--dur-fast);
}
.ef-btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }
.ef-btn-primary:active { transform: translateY(0); }

/* ─── THEME TOGGLE ───────────────────────────────────────────── */
.ef-theme-toggle { position: relative; width: 32px; height: 32px; padding: 0; justify-content: center; }
.ef-sun, .ef-moon { position: absolute; transition: opacity var(--dur-med), transform var(--dur-med) var(--ease-out); }
.dark .ef-sun  { opacity: 0; transform: scale(0.5) rotate(90deg); }
.dark .ef-moon { opacity: 1; transform: scale(1) rotate(0); }
html:not(.dark) .ef-sun  { opacity: 1; transform: scale(1) rotate(0); }
html:not(.dark) .ef-moon { opacity: 0; transform: scale(0.5) rotate(-90deg); }

/* ─── PROFILE SELECTOR ───────────────────────────────────────── */
.ef-profile-selector { position: relative; }

.ef-profile-btn {
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 20px;
  max-width: 160px;
}
.ef-profile-btn span { overflow: hidden; text-overflow: ellipsis; max-width: 90px; }

.ef-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 220px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow: hidden;
  opacity: 0;
  transform: translateY(-8px) scale(0.97);
  pointer-events: none;
  transition: opacity var(--dur-med) var(--ease-out),
              transform var(--dur-med) var(--ease-out);
  z-index: 200;
}
.ef-dropdown.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.ef-dropdown-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  border-bottom: 1px solid var(--border);
}

.ef-profile-list { padding: 6px; }

.ef-profile-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  color: var(--text-primary);
  transition: background var(--dur-fast);
}
.ef-profile-item:hover { background: var(--bg-input); }
.ef-profile-item.active { background: var(--accent-dim); color: var(--accent); }

.ef-profile-item-actions {
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity var(--dur-fast);
}
.ef-profile-item:hover .ef-profile-item-actions { opacity: 1; }

.ef-profile-action-btn {
  background: none; border: none;
  color: var(--text-tertiary);
  font-size: 11px; cursor: pointer;
  padding: 2px 4px; border-radius: 4px;
  transition: color var(--dur-fast), background var(--dur-fast);
}
.ef-profile-action-btn:hover { color: var(--text-primary); background: var(--bg-input-hover); }
.ef-profile-action-btn.del:hover { color: #ef4444; }

/* ─── MAIN LAYOUT ────────────────────────────────────────────── */
.ef-main {
  position: relative;
  z-index: 1;
  max-width: 1440px;
  margin: 0 auto;
  padding: 20px 20px 40px;
}

.ef-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 16px;
  align-items: start;
}

@media (max-width: 900px) {
  .ef-layout { grid-template-columns: 1fr; }
  .ef-panel-right { position: static; }
}

/* ─── PANELS ─────────────────────────────────────────────────── */
.ef-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--panel-radius);
  backdrop-filter: blur(24px) saturate(1.3);
  -webkit-backdrop-filter: blur(24px) saturate(1.3);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: background var(--dur-slow) var(--ease-out),
              border-color var(--dur-slow) var(--ease-out);
}

.ef-panel-left {
  position: sticky;
  top: calc(var(--header-h) + 20px);
  max-height: calc(100vh - var(--header-h) - 40px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.ef-panel-left::-webkit-scrollbar { width: 4px; }
.ef-panel-left::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}

/* ─── TAB BAR ────────────────────────────────────────────────── */
.ef-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--bg-input);
  border-bottom: 1px solid var(--border);
  padding: 4px;
  gap: 2px;
}

.ef-tab {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 8px 6px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--dur-fast), color var(--dur-fast);
  white-space: nowrap;
}
.ef-tab:hover { background: var(--bg-glass); color: var(--text-primary); }
.ef-tab-active, .ef-tab[aria-selected="true"] {
  background: var(--bg-panel);
  color: var(--accent);
  box-shadow: var(--shadow-sm);
}

/* ─── TAB PANELS ─────────────────────────────────────────────── */
.ef-tab-panel {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  animation: panelIn var(--dur-med) var(--ease-out);
}
.ef-tab-panel[hidden] { display: none; }

@keyframes panelIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── FORM ELEMENTS ──────────────────────────────────────────── */
.ef-section-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: -6px;
}

.ef-field { display: flex; flex-direction: column; gap: 5px; }
.ef-field-group { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.ef-mt { margin-top: 4px; }

.ef-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 5px;
}
.ef-label-icon { gap: 6px; }
.ef-label svg { color: var(--accent); opacity: 0.8; flex-shrink: 0; }
.ef-label-opt {
  font-size: 10px;
  font-weight: 400;
  color: var(--text-tertiary);
  margin-left: 2px;
}
.ef-label-small {
  font-size: 11px;
  color: var(--text-tertiary);
}
.ef-required { color: var(--accent); font-size: 14px; }

.ef-input, .ef-select {
  width: 100%;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-input);
  background: var(--bg-input);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 13px;
  transition: border-color var(--dur-fast), background var(--dur-fast), box-shadow var(--dur-fast);
  outline: none;
  -webkit-appearance: none;
}
.ef-input::placeholder { color: var(--text-tertiary); }
.ef-input:hover, .ef-select:hover { background: var(--bg-input-hover); border-color: rgba(255,255,255,0.15); }
.ef-input:focus, .ef-select:focus {
  border-color: var(--accent);
  box-shadow: var(--shadow-input);
  background: var(--bg-input-hover);
}

.ef-select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23888' stroke-width='1.3' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 10px;
  padding-right: 28px;
}
.ef-select option { background: var(--bg); color: var(--text-primary); }

.ef-divider {
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

/* ─── AVATAR ROW ─────────────────────────────────────────────── */
.ef-avatar-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.ef-avatar-preview {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 1.5px solid var(--border-input);
  background: var(--bg-input);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  overflow: hidden;
  flex-shrink: 0;
  transition: border-color var(--dur-med);
}
.ef-avatar-preview img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.ef-avatar-preview:has(img) { border-color: var(--accent); }

.ef-avatar-controls { display: flex; flex-direction: column; gap: 6px; }
.ef-upload-label { cursor: pointer; }

.ef-remove-avatar {
  font-size: 12px;
  color: #ef4444;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  padding: 2px 0;
  transition: opacity var(--dur-fast);
}
.ef-remove-avatar:hover { opacity: 0.7; }

/* ─── RANGE SLIDER ───────────────────────────────────────────── */
.ef-range-row { display: flex; align-items: center; gap: 10px; }

.ef-range {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 2px;
  background: var(--border-input);
  cursor: pointer;
  outline: none;
}
.ef-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  transition: transform var(--dur-fast);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.ef-range::-webkit-slider-thumb:hover { transform: scale(1.2); }
.ef-range::-moz-range-thumb {
  width: 16px; height: 16px;
  border-radius: 50%; border: none;
  background: var(--accent); cursor: pointer;
}

.ef-range-val {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  min-width: 30px;
  text-align: right;
}

/* ─── TOGGLE SWITCH ──────────────────────────────────────────── */
.ef-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.ef-toggle-label { font-size: 13px; color: var(--text-secondary); cursor: pointer; }

.ef-toggle { display: flex; align-items: center; flex-shrink: 0; cursor: pointer; }
.ef-toggle input[type="checkbox"] { display: none; }

.ef-toggle-track {
  position: relative;
  width: 36px; height: 20px;
  border-radius: 10px;
  background: var(--border-input);
  border: 1px solid var(--border);
  transition: background var(--dur-med);
}
.ef-toggle input:checked + .ef-toggle-track { background: var(--accent); border-color: var(--accent); }

.ef-toggle-thumb {
  position: absolute;
  top: 2px; left: 2px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--text-secondary);
  transition: transform var(--dur-med) var(--ease-out), background var(--dur-med);
}
.ef-toggle input:checked ~ .ef-toggle-track .ef-toggle-thumb,
.ef-toggle input:checked + .ef-toggle-track .ef-toggle-thumb {
  transform: translateX(16px);
  background: #fff;
}

/* ─── TEMPLATE GRID ──────────────────────────────────────────── */
.ef-templates-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.ef-template-card {
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 8px 8px;
  cursor: pointer;
  text-align: center;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-input);
  transition: border-color var(--dur-fast), background var(--dur-fast),
              transform var(--dur-fast), color var(--dur-fast);
  position: relative;
  overflow: hidden;
}
.ef-template-card:hover {
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-2px);
  color: var(--text-primary);
}
.ef-template-card.selected {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent);
}
.ef-template-card.selected::after {
  content: '✓';
  position: absolute;
  top: 4px; right: 6px;
  font-size: 10px;
  color: var(--accent);
}

.ef-template-preview {
  width: 100%;
  height: 44px;
  border-radius: 4px;
  background: var(--bg-email);
  margin-bottom: 6px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ef-template-mini { transform: scale(0.35); transform-origin: center; pointer-events: none; }

/* ─── COLOR PRESETS ──────────────────────────────────────────── */
.ef-color-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.ef-color-presets { display: flex; gap: 6px; flex-wrap: wrap; }

.ef-color-swatch {
  width: 26px; height: 26px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform var(--dur-fast), border-color var(--dur-fast);
  flex-shrink: 0;
}
.ef-color-swatch:hover { transform: scale(1.2); }
.ef-color-swatch.selected {
  border-color: var(--text-primary);
  transform: scale(1.15);
}

.ef-color-custom { display: flex; flex-direction: column; gap: 4px; align-items: center; }

.ef-color-input {
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 2px solid var(--border-input);
  padding: 0;
  cursor: pointer;
  background: none;
  overflow: hidden;
  transition: border-color var(--dur-fast);
}
.ef-color-input::-webkit-color-swatch-wrapper { padding: 0; }
.ef-color-input::-webkit-color-swatch { border: none; border-radius: 50%; }
.ef-color-input:hover { border-color: var(--text-secondary); }

/* ─── AI PANEL ───────────────────────────────────────────────── */
.ef-ai-hero {
  text-align: center;
  padding: 8px 0 4px;
}

.ef-ai-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px; height: 56px;
  border-radius: 14px;
  background: var(--accent-dim);
  color: var(--accent);
  margin-bottom: 12px;
  border: 1px solid var(--accent-glow);
  animation: pulseGlow 3s ease-in-out infinite;
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow); }
  50%       { box-shadow: 0 0 0 8px transparent; }
}

.ef-ai-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.ef-ai-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.ef-ai-form { display: flex; flex-direction: column; gap: 12px; }

.ef-btn-ai {
  position: relative;
  width: 100%;
  padding: 13px 20px;
  border-radius: var(--radius-md);
  border: none;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  overflow: hidden;
  transition: opacity var(--dur-fast), transform var(--dur-fast);
  letter-spacing: 0.01em;
  margin-top: 4px;
}
.ef-btn-ai:hover { opacity: 0.92; transform: translateY(-1px); }
.ef-btn-ai:active { transform: translateY(0); }
.ef-btn-ai:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.ef-btn-ai-shine {
  position: absolute;
  top: 0; left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transform: skewX(-20deg);
  animation: btnShine 3s ease-in-out infinite;
}

@keyframes btnShine {
  0%   { left: -100%; }
  50%, 100% { left: 150%; }
}

.ef-ai-status {
  text-align: center;
  font-size: 12px;
  color: var(--accent);
  min-height: 18px;
  letter-spacing: 0.02em;
}

.ef-ai-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.ef-ai-features li {
  font-size: 12.5px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.ef-check { color: var(--accent); font-size: 10px; flex-shrink: 0; }

/* ─── RIGHT PANEL — Preview ──────────────────────────────────── */
.ef-panel-right { display: flex; flex-direction: column; }

.ef-preview-header {
  padding: 16px 20px 0;
  border-bottom: 1px solid var(--border);
}

.ef-preview-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  flex-wrap: wrap;
  gap: 10px;
}

.ef-preview-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.ef-preview-client-tabs { display: flex; gap: 2px; }

.ef-client-tab {
  padding: 5px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--dur-fast);
}
.ef-client-tab:hover { border-color: var(--accent); color: var(--accent); }
.ef-client-active, .ef-client-tab[aria-selected="true"] {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

/* ─── EMAIL CHROME ───────────────────────────────────────────── */
.ef-email-chrome {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-input);
  padding: 6px 12px;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  margin-top: 12px;
  border: 1px solid var(--border);
  border-bottom: none;
}

.ef-email-chrome-dots { display: flex; gap: 5px; }
.ef-email-chrome-dots span {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--border);
}
.ef-email-chrome-dots span:nth-child(1) { background: #ef4444; opacity: 0.7; }
.ef-email-chrome-dots span:nth-child(2) { background: #f59e0b; opacity: 0.7; }
.ef-email-chrome-dots span:nth-child(3) { background: #22c55e; opacity: 0.7; }

.ef-email-chrome-address {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-tertiary);
}

/* ─── EMAIL MOCK BODY ────────────────────────────────────────── */
.ef-email-mock {
  flex: 1;
  overflow: auto;
  background: var(--bg-email);
  border: 1px solid var(--border);
  border-top: none;
  border-bottom: none;
  min-height: 360px;
}

.ef-email-body {
  background: var(--bg-email-body);
  padding: 24px 28px;
  min-height: 100%;
  font-family: Arial, sans-serif;
  font-size: 14px;
  color: var(--text-primary);
}

.ef-email-to, .ef-email-subject {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
  font-size: 12px;
}

.ef-email-label {
  font-weight: 600;
  color: var(--text-tertiary);
  min-width: 55px;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.ef-email-val { color: var(--text-secondary); }

.ef-email-content {
  padding: 16px 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-primary);
  opacity: 0.85;
}
.ef-email-content p { margin-bottom: 10px; }

.ef-signature-wrapper {
  border-top: 1px solid var(--border);
  padding-top: 16px;
  transition: all var(--dur-med) var(--ease-out);
}

/* ─── EXPORT BAR ─────────────────────────────────────────────── */
.ef-export-bar {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.ef-export-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  white-space: nowrap;
}

.ef-export-actions { display: flex; gap: 6px; flex-wrap: wrap; }

.ef-btn-export {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 13px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-input);
  background: var(--bg-input);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--dur-fast);
  white-space: nowrap;
}
.ef-btn-export:hover {
  background: var(--bg-input-hover);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}
.ef-btn-export:active { transform: translateY(0); }

.ef-btn-primary-export {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.ef-btn-primary-export:hover {
  opacity: 0.9;
  color: #fff;
  border-color: var(--accent);
}

.ef-btn-plain { border-style: dashed; }

/* ─── TOAST ──────────────────────────────────────────────────── */
.ef-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  padding: 10px 18px;
  border-radius: 20px;
  background: var(--text-primary);
  color: var(--bg);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--dur-med), transform var(--dur-med) var(--ease-out);
  white-space: nowrap;
  z-index: 1000;
  box-shadow: var(--shadow);
}
.ef-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ─── CODE PANEL ─────────────────────────────────────────────── */
.ef-code-panel {
  border-top: 1px solid var(--border);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--dur-slow) var(--ease-out);
}
.ef-code-panel.open { max-height: 300px; }

.ef-code-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.ef-close-code {
  font-size: 13px;
  padding: 4px 6px;
}

.ef-code-pre {
  padding: 16px 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  color: var(--text-secondary);
  overflow: auto;
  max-height: 240px;
  white-space: pre-wrap;
  word-break: break-all;
  background: var(--bg-email);
}

/* ─── MODAL ──────────────────────────────────────────────────── */
.ef-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: modalFadeIn var(--dur-med) var(--ease-out);
}
.ef-modal-overlay[hidden] { display: none; }

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

.ef-modal {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--panel-radius);
  padding: 28px;
  max-width: 380px;
  width: 100%;
  box-shadow: var(--shadow);
  animation: modalSlideIn var(--dur-med) var(--ease-out);
}

@keyframes modalSlideIn {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.ef-modal-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.ef-modal-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.5;
}

.ef-modal-input { margin-bottom: 16px; }

.ef-modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

/* ─── LOADING STATES ─────────────────────────────────────────── */
.ef-loading {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.ef-spinner {
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── ACCENT COLOR TRANSITIONS ───────────────────────────────── */
/* When accent changes, smoothly update all colored elements */
.ef-logo-icon,
.ef-tab-active,
.ef-tab[aria-selected="true"],
.ef-ai-icon,
.ef-btn-ai,
.ef-btn-primary-export,
.ef-client-active,
.ef-template-card.selected {
  transition: background var(--dur-med), color var(--dur-med),
              border-color var(--dur-med), box-shadow var(--dur-med);
}

/* ─── ACCESSIBILITY ──────────────────────────────────────────── */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ─── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .ef-layout { grid-template-columns: 340px 1fr; }
}

@media (max-width: 900px) {
  .ef-layout { grid-template-columns: 1fr; }
  .ef-panel-left { position: static; max-height: none; overflow: visible; }
  .ef-main { padding: 12px 12px 32px; }
  .ef-export-bar { padding: 12px 16px; }
}

@media (max-width: 600px) {
  .ef-header-inner { padding: 0 16px; }
  .ef-logo-tagline { display: none; }
  .ef-templates-grid { grid-template-columns: repeat(2, 1fr); }
  .ef-email-body { padding: 16px; }
  .ef-export-actions { gap: 4px; }
  .ef-btn-export { padding: 6px 10px; font-size: 11px; }
}

/* ─── SIGNATURE HTML CONTENT ─────────────────────────────────── */
/* Ensure signature renders cleanly inside the preview */
#signatureWrapper * { box-sizing: border-box; }
#signatureWrapper a { color: var(--accent) !important; }

/* Fade-in for new previews */
.sig-enter {
  animation: sigFadeIn var(--dur-med) var(--ease-out);
}
@keyframes sigFadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}