/* ==========================================================================
   DPGNotes Unified Shared Authentication & Quota Component Stylesheet
   Zero-dependency, accessible, WCAG AA/AAA compliant scoped styles
   ========================================================================== */

:root {
  --dpg-auth-font: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --dpg-auth-bg: #0b0f19;
  --dpg-auth-card: #0f172a;
  --dpg-auth-card-elevated: #1e293b;
  --dpg-auth-border: rgba(255, 255, 255, 0.14);
  --dpg-auth-text: #f8fafc;
  --dpg-auth-muted: #94a3b8;
  --dpg-auth-primary: #6366f1;
  --dpg-auth-primary-hover: #4f46e5;
  --dpg-auth-danger: #ef4444;
  --dpg-auth-success: #10b981;
}

/* Base Container & Backdrop */
.dpg-auth-overlay {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(2, 6, 23, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 999999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  box-sizing: border-box;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  animation: dpgAuthFadeIn 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

.dpg-auth-overlay.active {
  display: flex !important;
}

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

@keyframes dpgAuthSlideUp {
  from { opacity: 0; transform: translateY(18px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Modal Dialog Box */
.dpg-auth-dialog {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.98), rgba(30, 41, 59, 0.95));
  border: 1px solid var(--dpg-auth-border);
  border-radius: 20px;
  width: 100%;
  max-width: 520px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), 0 0 35px rgba(99, 102, 241, 0.15);
  padding: 2rem 2.2rem;
  box-sizing: border-box;
  color: var(--dpg-auth-text);
  font-family: var(--dpg-auth-font);
  position: relative;
  margin: auto;
  animation: dpgAuthSlideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.dpg-auth-dialog.modal-wide {
  max-width: 680px;
}

/* Close Button */
.dpg-auth-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--dpg-auth-muted);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  transition: all 0.2s ease;
  z-index: 10;
}

.dpg-auth-close-btn:hover {
  background: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.4);
}

/* Header & Typography */
.dpg-auth-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}

.dpg-auth-badge-blue {
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.35);
  color: #a5b4fc;
}

.dpg-auth-badge-amber {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: #fcd34d;
}

.dpg-auth-title {
  font-size: 1.65rem;
  font-weight: 800;
  color: #ffffff;
  margin: 0 0 0.5rem 0;
  line-height: 1.25;
}

.dpg-auth-subtitle {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--dpg-auth-muted);
  margin: 0 0 1.4rem 0;
}

/* OAuth Buttons Grid */
.dpg-auth-oauth-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 1.2rem;
}

@media (max-width: 480px) {
  .dpg-auth-oauth-row {
    grid-template-columns: 1fr;
  }
}

.dpg-auth-btn-oauth {
  background: rgba(255, 255, 255, 0.05);
  border: 1.5px solid rgba(255, 255, 255, 0.12);
  color: #ffffff;
  border-radius: 12px;
  padding: 10px 14px;
  font-family: var(--dpg-auth-font);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.2s ease;
  width: 100%;
}

.dpg-auth-btn-oauth:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(99, 102, 241, 0.5);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

/* Divider */
.dpg-auth-divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 1.2rem 0;
  color: #64748b;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.dpg-auth-divider::before,
.dpg-auth-divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.dpg-auth-divider span {
  padding: 0 12px;
}

/* Forms & Inputs */
.dpg-auth-form-group {
  margin-bottom: 1.1rem;
  text-align: left;
}

.dpg-auth-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: #cbd5e1;
  margin-bottom: 0.45rem;
}

.dpg-auth-input {
  width: 100%;
  background: rgba(11, 15, 25, 0.85);
  border: 1.5px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  padding: 10px 14px;
  color: #ffffff;
  font-family: var(--dpg-auth-font);
  font-size: 0.92rem;
  outline: none;
  box-sizing: border-box;
  transition: all 0.2s ease;
}

.dpg-auth-input:focus {
  border-color: var(--dpg-auth-primary);
  background: rgba(11, 15, 25, 0.95);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
}

.dpg-auth-input::placeholder {
  color: #64748b;
}

/* Grid for wide forms */
.dpg-auth-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

@media (max-width: 580px) {
  .dpg-auth-grid-2 {
    grid-template-columns: 1fr;
  }
}

/* Submit & Primary Buttons */
.dpg-auth-btn-primary {
  width: 100%;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #ffffff;
  border: none;
  border-radius: 12px;
  padding: 12px 18px;
  font-family: var(--dpg-auth-font);
  font-size: 0.98rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 6px 22px rgba(99, 102, 241, 0.45);
  transition: all 0.2s ease;
  margin-top: 0.4rem;
}

.dpg-auth-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(99, 102, 241, 0.6);
  opacity: 0.95;
}

.dpg-auth-btn-primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

/* Secondary Button */
.dpg-auth-btn-secondary {
  width: 100%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #e2e8f0;
  border-radius: 12px;
  padding: 11px 16px;
  font-family: var(--dpg-auth-font);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.dpg-auth-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}

/* Links and Footers */
.dpg-auth-footer {
  margin-top: 1.4rem;
  text-align: center;
  font-size: 0.86rem;
  color: var(--dpg-auth-muted);
}

.dpg-auth-link {
  color: #818cf8;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.2s;
}

.dpg-auth-link:hover {
  color: #c7d2fe;
  text-decoration: underline;
}

/* Reset Timer Box */
.dpg-auth-timer-box {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 0.85rem;
  margin-bottom: 1.4rem;
  text-align: center;
}

.dpg-auth-timer-num {
  font-family: monospace;
  font-size: 1.9rem;
  font-weight: 800;
  color: #818cf8;
  letter-spacing: 2.5px;
  margin: 3px 0;
}

.dpg-auth-timer-sub {
  font-size: 0.72rem;
  color: #94a3b8;
  letter-spacing: 0.5px;
}

/* Spinner Icon */
.dpg-auth-spin {
  display: inline-block;
  animation: dpgAuthRotate 1s linear infinite;
}

@keyframes dpgAuthRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Inline Error Alert Box */
.dpg-auth-alert-error {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.38);
  border-radius: 12px;
  padding: 0.75rem 1rem;
  margin-bottom: 1.1rem;
  color: #fecaca;
  font-size: 0.86rem;
  line-height: 1.45;
  animation: dpgAuthShake 0.35s ease-in-out;
}

.dpg-auth-alert-error i {
  font-size: 1.15rem;
  color: #ef4444;
  flex-shrink: 0;
  margin-top: 1px;
}

.dpg-auth-alert-error.dpg-alert-hidden {
  display: none !important;
}

@keyframes dpgAuthShake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-4px); }
  40%, 80% { transform: translateX(4px); }
}

/* Input Error State */
.dpg-auth-input.dpg-input-error {
  border-color: #ef4444 !important;
  background: rgba(239, 68, 68, 0.06) !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2) !important;
}

/* Neutralize Browser Autofill Styles */
.dpg-auth-input:-webkit-autofill,
.dpg-auth-input:-webkit-autofill:hover, 
.dpg-auth-input:-webkit-autofill:focus {
  -webkit-text-fill-color: #f8fafc !important;
  -webkit-box-shadow: 0 0 0px 1000px #0b1120 inset !important;
  transition: background-color 5000s ease-in-out 0s;
}

/* ==========================================================================
   IMMUTABLE GUEST QUOTA LOCKDOWN & ANTI-DEVTOOLS SHIELD
   Strictly prevents inspection-mode bypasses, element deletions, or tampering
   ========================================================================== */
html.dpg-quota-locked-state,
body.dpg-quota-locked-state {
  overflow: hidden !important;
  height: 100vh !important;
  width: 100vw !important;
  max-height: 100vh !important;
  position: fixed !important;
  inset: 0 !important;
  user-select: none !important;
  -webkit-user-select: none !important;
  touch-action: none !important;
  background: #020617 !important;
}

/* Hard Concealment: Even if #dpgAuthOverlay is deleted in DevTools,
   all sibling content is completely invisible, blurred, and unclickable! */
body.dpg-quota-locked-state > *:not(#dpgAuthOverlay):not(#dpgLockdownShield) {
  filter: blur(60px) brightness(0.02) !important;
  -webkit-filter: blur(60px) brightness(0.02) !important;
  opacity: 0.02 !important;
  visibility: hidden !important;
  pointer-events: none !important;
  user-select: none !important;
  -webkit-user-select: none !important;
  overflow: hidden !important;
  max-height: 100vh !important;
}

/* Enforce strict lockdown on overlay when active */
.dpg-auth-overlay.active {
  display: flex !important;
  visibility: visible !important;
  opacity: 1 !important;
  pointer-events: auto !important;
  z-index: 2147483647 !important;
}

/* Emergency fallback lockdown shield (instant self-healing backup) */
#dpgLockdownShield {
  position: fixed !important;
  inset: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  background: #020617 !important;
  z-index: 2147483646 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  overflow: hidden !important;
}