/* ═══════════════════════════════════════════════════════════════════
   FretScope — Auth Modal & Preset System Styles
   Append this to fretboard-trainer.css (or link as separate sheet)
   ═══════════════════════════════════════════════════════════════════ */

/* ── NAV ACCOUNT BUTTON ─────────────────────────────────────────── */

.nav-auth-btn {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0 12px;
  height: 30px;
  border: 1px solid var(--site-border-hi);
  border-radius: 6px;
  background: transparent;
  color: var(--cyan);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  white-space: nowrap;
}

.nav-auth-btn:hover {
  background: rgba(0, 200, 255, 0.08);
  border-color: var(--cyan);
}

.nav-auth-btn svg { flex-shrink: 0; }

/* Logged-in avatar pill */
.nav-user-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0 10px 0 6px;
  height: 30px;
  border: 1px solid var(--site-border);
  border-radius: 20px;
  background: rgba(0, 200, 255, 0.05);
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  position: relative;
}

.nav-user-pill:hover {
  border-color: var(--site-border-hi);
  background: rgba(0, 200, 255, 0.09);
}

.nav-user-avatar {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), #4f8cff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  font-weight: 700;
  color: #06080d;
  flex-shrink: 0;
  font-family: 'Exo 2', sans-serif;
  letter-spacing: 0;
}

/* Dropdown from avatar pill */
.nav-user-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 160px;
  background: #111926;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.5);
  z-index: 999;
  display: none;
}

.nav-user-dropdown.open { display: block; }

.nav-user-dropdown-email {
  padding: 8px 10px 10px;
  font-size: 0.7rem;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
  font-family: 'Inter', sans-serif;
  letter-spacing: 0;
  word-break: break-all;
}

.nav-dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 8px 10px;
  border: none;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  text-align: left;
}

.nav-dropdown-item:hover { background: #162133; color: var(--text); }
.nav-dropdown-item.danger:hover { background: rgba(220, 50, 50, 0.15); color: #f87171; }

/* ── AUTH MODAL OVERLAY ─────────────────────────────────────────── */

.auth-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(4, 8, 15, 0.82);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
}

.auth-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.auth-modal {
  width: 100%;
  max-width: 400px;
  background: #0d1420;
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 32px 80px rgba(0,0,0,0.6);
  overflow: hidden;
  transform: translateY(16px) scale(0.98);
  transition: transform 0.26s cubic-bezier(0.16, 1, 0.3, 1);
}

.auth-overlay.open .auth-modal {
  transform: translateY(0) scale(1);
}

.auth-modal-header {
  padding: 24px 24px 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.auth-modal-logo {
  font-family: 'Exo 2', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--text);
  letter-spacing: -0.01em;
}

.auth-modal-logo span { color: var(--cyan); }

.auth-modal-close {
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
  flex-shrink: 0;
}

.auth-modal-close:hover { background: rgba(255,255,255,0.06); color: var(--text); }

.auth-modal-body { padding: 20px 24px 28px; }

.auth-modal-title {
  font-family: 'Exo 2', sans-serif;
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--text);
  margin: 0 0 4px;
  letter-spacing: -0.02em;
}

.auth-modal-subtitle {
  font-size: 0.84rem;
  color: var(--muted);
  margin: 0 0 22px;
  line-height: 1.5;
}

/* Tabs: Sign In / Create Account */
.auth-tabs {
  display: flex;
  gap: 2px;
  background: #0a0f19;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 3px;
  margin-bottom: 20px;
}

.auth-tab {
  flex: 1;
  padding: 7px 0;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.auth-tab.active {
  background: var(--border-strong);
  color: var(--text);
}

/* Form fields */
.auth-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.auth-field label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.auth-field input {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  background: #0a0f19;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.92rem;
  outline: none;
  transition: border-color 0.18s;
}

.auth-field input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 200, 255, 0.08);
}

.auth-field input::placeholder { color: #3d4f66; }

.auth-marketing-field {
  margin: 4px 0 16px;
  padding: 12px 14px;
  background: #0a0f19;
  border: 1px solid var(--border);
  border-radius: 12px;
}

.auth-marketing-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}

.auth-marketing-checkbox input {
  margin-top: 2px;
  accent-color: var(--cyan);
  flex-shrink: 0;
}

.auth-marketing-checkbox span {
  color: var(--text);
  font-size: 0.82rem;
  line-height: 1.5;
}

.auth-marketing-fineprint {
  margin: 8px 0 0 27px;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.5;
}

.auth-error {
  font-size: 0.78rem;
  color: #f87171;
  padding: 8px 12px;
  background: rgba(248, 113, 113, 0.08);
  border: 1px solid rgba(248, 113, 113, 0.2);
  border-radius: 8px;
  margin-bottom: 14px;
  display: none;
}

.auth-error.visible { display: block; }

.auth-submit-btn {
  width: 100%;
  height: 46px;
  border: none;
  border-radius: 11px;
  background: var(--cyan);
  color: #06080d;
  font-family: 'Exo 2', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: opacity 0.18s, transform 0.15s;
  margin-top: 4px;
}

.auth-submit-btn:hover { opacity: 0.88; transform: translateY(-1px); }
.auth-submit-btn:active { transform: translateY(0); }
.auth-submit-btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }

.auth-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 16px 0;
  color: var(--muted);
  font-size: 0.72rem;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.auth-google-btn {
  width: 100%;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: transparent;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: border-color 0.18s, background 0.18s;
}

.auth-google-btn:hover {
  border-color: var(--border-strong);
  background: rgba(255,255,255,0.04);
}

.auth-gate-hint {
  font-size: 0.76rem;
  color: var(--muted);
  text-align: center;
  margin-top: 14px;
  line-height: 1.5;
}

/* ── PRESET PANEL ───────────────────────────────────────────────── */

.preset-panel {
  padding: 18px 24px;
  margin-bottom: 18px;
  position: relative;
}

.preset-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  gap: 12px;
}

.preset-panel-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.preset-panel-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.preset-share {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.preset-share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.18s, color 0.18s, background 0.18s;
  white-space: nowrap;
}

.preset-share-btn:hover,
.preset-share-btn:focus {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 200, 255, 0.06);
}

.preset-share-feedback {
  font-size: 0.72rem;
  color: var(--muted);
  line-height: 1.4;
}

.preset-save-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.18s, color 0.18s, background 0.18s;
  white-space: nowrap;
}

.preset-save-btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 200, 255, 0.06);
}

/* The scrollable chips row */
.preset-chips {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}

.preset-chips::-webkit-scrollbar { display: none; }

.preset-chip {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 6px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #0f1520;
  color: var(--muted);
  font-size: 0.82rem;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  flex: 1 1 220px;
  min-width: 220px;
}

.preset-chip-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.preset-chip-actions {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  flex-shrink: 0;
}

.preset-chip-name {
  color: #dce8ff;
  font-weight: 600;
}

.preset-chip-note {
  color: rgba(168, 184, 205, 0.78);
  font-size: 0.74rem;
  line-height: 1.45;
  white-space: normal;
  word-break: break-word;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.preset-chip:hover {
  border-color: var(--border-strong);
  color: var(--text);
  background: #162133;
}

.preset-chip.active {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 200, 255, 0.07);
}

.preset-chip-edit {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: inherit;
  font: inherit;
  font-size: 0.68rem;
  line-height: 1;
  padding: 5px 8px;
  cursor: pointer;
  opacity: 0.78;
  transition: opacity 0.15s, border-color 0.15s, color 0.15s, background 0.15s;
}

.preset-chip-edit:hover {
  opacity: 1;
  border-color: var(--border-strong);
  color: var(--text);
  background: rgba(255,255,255,0.05);
}

.preset-chip-delete {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  opacity: 0.5;
  transition: opacity 0.15s, color 0.15s;
  font-size: 0.8rem;
  line-height: 1;
}

.preset-chip-delete:hover { opacity: 1; color: #f87171; }

.preset-empty {
  font-size: 0.8rem;
  color: #3d4f66;
  font-style: italic;
  padding: 4px 0;
}

/* Lock badge for gated features */
.preset-locked-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #0a0f19;
  font-size: 0.8rem;
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.18s, color 0.18s;
}

.preset-locked-hint:hover { border-color: var(--cyan); color: var(--text); }
.preset-locked-hint svg { color: var(--cyan); flex-shrink: 0; }

/* ── SAVE PRESET MODAL ──────────────────────────────────────────── */

.save-preset-overlay {
  position: fixed;
  inset: 0;
  z-index: 1900;
  background: rgba(4, 8, 15, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.save-preset-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.save-preset-modal {
  width: 100%;
  max-width: 360px;
  background: #0d1420;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
  transform: translateY(12px);
  transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

.save-preset-overlay.open .save-preset-modal { transform: translateY(0); }

.save-preset-title {
  font-family: 'Exo 2', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}

.save-preset-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
}

.save-preset-tag {
  padding: 3px 9px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.74rem;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.04em;
}

.save-preset-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;
}

.save-preset-field label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.save-preset-field input {
  width: 100%;
  height: 42px;
  padding: 0 13px;
  background: #0a0f19;
  border: 1px solid var(--border);
  border-radius: 9px;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.18s;
}

.save-preset-field textarea {
  width: 100%;
  min-height: 104px;
  padding: 10px 13px;
  background: #0a0f19;
  border: 1px solid var(--border);
  border-radius: 9px;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  line-height: 1.5;
  outline: none;
  transition: border-color 0.18s;
  resize: vertical;
  box-sizing: border-box;
}

.save-preset-field input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 200, 255, 0.08);
}

.save-preset-field textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 200, 255, 0.08);
}

.save-preset-counter {
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--muted);
}

.save-preset-counter--warn {
  color: #f5c96a;
}

.save-preset-actions {
  display: flex;
  gap: 8px;
}

.save-preset-cancel {
  flex: 1;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
  font-family: 'Inter', sans-serif;
  font-size: 0.86rem;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.save-preset-cancel:hover { border-color: var(--border-strong); color: var(--text); }

.save-preset-confirm {
  flex: 2;
  height: 40px;
  border: none;
  border-radius: 9px;
  background: var(--cyan);
  color: #06080d;
  font-family: 'Exo 2', sans-serif;
  font-weight: 700;
  font-size: 0.88rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: opacity 0.15s;
}

.save-preset-confirm:hover { opacity: 0.88; }

/* ── TOAST NOTIFICATION ─────────────────────────────────────────── */

.fs-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 3000;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  background: #111926;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.45);
  font-size: 0.84rem;
  color: var(--text);
  max-width: 320px;
  transform: translateY(12px);
  opacity: 0;
  transition: opacity 0.22s, transform 0.22s;
  pointer-events: none;
}

.fs-toast.visible {
  opacity: 1;
  transform: translateY(0);
}

.fs-toast.success { border-color: rgba(52, 211, 153, 0.4); }
.fs-toast.error   { border-color: rgba(248, 113, 113, 0.4); }

.fs-toast-icon { font-size: 1rem; flex-shrink: 0; }

/* ── CHORD MODE OVERRIDES ───────────────────────────────────────── */

body.chord-mode .nav-auth-btn {
  border-color: rgba(245, 166, 35, 0.35);
  color: #f5c96a;
}

body.chord-mode .nav-auth-btn:hover {
  background: rgba(245, 166, 35, 0.08);
  border-color: rgba(245, 166, 35, 0.6);
}

body.chord-mode .auth-submit-btn {
  background: #f5c96a;
}

body.chord-mode .preset-chip.active {
  border-color: #f5c96a;
  color: #f5c96a;
  background: rgba(245, 166, 35, 0.07);
}

body.chord-mode .preset-save-btn:hover {
  border-color: #f5c96a;
  color: #f5c96a;
}

body.chord-mode .preset-share-btn:hover,
body.chord-mode .preset-share-btn:focus {
  border-color: #f5c96a;
  color: #f5c96a;
  background: rgba(245, 166, 35, 0.08);
}

@media (max-width: 760px) {
  .preset-panel-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .preset-panel-actions,
  .preset-share {
    width: 100%;
    justify-content: flex-start;
  }

  .preset-share-feedback {
    display: block;
    width: 100%;
  }
}