/* ============================================
   AUTH.CSS — Login & Register pages
   Fillr Chrome Extension
   ============================================ */

/* ---------- TOKENS ---------- */
:root {
  --blue:    #2563eb;
  --blue-lt: #eff6ff;
  --dark:    #0f172a;
  --muted:   #64748b;
  --border:  #e2e8f0;
  --danger:  #ef4444;
  --success: #22c55e;
  --surface: #ffffff;
  --bg:      #f1f5f9;
  --sans: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Mono', monospace;
}

/* ---------- BASE RESET ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }

body.auth-page {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--dark);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  /* Subtle grid pattern — engineering feel */
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 28px 28px;
  background-position: -1px -1px;
}

/* ---------- WRAPPER ---------- */
.auth-wrapper {
  width: 100%;
  max-width: 420px;
}

/* ---------- BRAND MARK ---------- */
.auth-brand {
  text-align: center;
  margin-bottom: 24px;
}
.auth-brand a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: -0.4px;
}
.auth-brand .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--blue);
  display: inline-block;
  margin-left: 2px;
}
.auth-brand .tag {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--blue);
  background: var(--blue-lt);
  border: 1px solid #bfdbfe;
  border-radius: 4px;
  padding: 1px 6px;
  letter-spacing: 0.05em;
  font-weight: 600;
}

/* ---------- CARD ---------- */
.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--blue);
  border-radius: 10px;
  padding: 36px 32px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 4px 20px rgba(0,0,0,0.04);
  position: relative;
  overflow: hidden;
}

.auth-card-head {
  margin-bottom: 28px;
}
.auth-card-head h1 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: -0.4px;
  margin-bottom: 4px;
}
.auth-card-head p {
  font-size: 0.85rem;
  color: var(--muted);
}
.auth-card-head p a {
  color: var(--blue);
  font-weight: 600;
  text-decoration: none;
}
.auth-card-head p a:hover { text-decoration: underline; }

/* ---------- FLOATING LABEL INPUTS ---------- */
.fl-group {
  position: relative;
  margin-bottom: 20px;
}

.fl-input {
  width: 100%;
  padding: 20px 14px 8px;
  font-size: 0.9rem;
  font-family: var(--sans);
  color: var(--dark);
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 7px;
  outline: none;
  transition: border-color 0.2s;
  -webkit-appearance: none;
}

/* Remove password eye in IE/Edge */
.fl-input::-ms-reveal,
.fl-input::-ms-clear { display: none; }

.fl-input:focus {
  border-color: var(--blue);
}

.fl-input.is-error {
  border-color: var(--danger);
  animation: shake 0.35s ease;
}
.fl-input.is-valid {
  border-color: var(--success);
}

.fl-label {
  position: absolute;
  left: 14px;
  top: 15px;
  font-size: 0.88rem;
  color: var(--muted);
  pointer-events: none;
  transition: top 0.18s ease, font-size 0.18s ease, color 0.18s ease;
  background: transparent;
}

/* Float label when focused OR has value (placeholder=" " trick) */
.fl-input:focus + .fl-label,
.fl-input:not(:placeholder-shown) + .fl-label {
  top: 6px;
  font-size: 0.72rem;
  color: var(--blue);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.fl-input.is-error + .fl-label { color: var(--danger); }
.fl-input.is-valid + .fl-label { color: var(--success); }

/* Animated underline bar */
.fl-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  width: 0;
  background: var(--blue);
  border-radius: 0 0 7px 7px;
  transition: width 0.25s ease;
  pointer-events: none;
}
.fl-input:focus ~ .fl-bar { width: 100%; }
.fl-input.is-error ~ .fl-bar { background: var(--danger); width: 100%; }
.fl-input.is-valid ~ .fl-bar { background: var(--success); width: 100%; }

/* ---------- PASSWORD TOGGLE ---------- */
.pw-wrap {
  position: relative;
}
.pw-wrap .fl-input {
  padding-right: 44px;
}
.pw-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: color 0.15s;
}
.pw-toggle:hover { color: var(--blue); }
.pw-toggle svg { width: 17px; height: 17px; }
.pw-toggle .icon-eye-off { display: none; }
.pw-toggle.active .icon-eye    { display: none; }
.pw-toggle.active .icon-eye-off { display: block; }

/* ---------- FIELD STATUS ICONS ---------- */
.fl-status {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px; height: 18px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
}
.fl-group.pw-wrap .fl-status { right: 44px; }

.fl-status svg { width: 18px; height: 18px; }
.fl-status .icon-check { color: var(--success); }
.fl-status .icon-x     { color: var(--danger); }

.fl-input.is-valid  ~ .fl-status { opacity: 1; }
.fl-input.is-valid  ~ .fl-status .icon-check { display: block; }
.fl-input.is-valid  ~ .fl-status .icon-x     { display: none;  }
.fl-input.is-error  ~ .fl-status { opacity: 1; }
.fl-input.is-error  ~ .fl-status .icon-check { display: none;  }
.fl-input.is-error  ~ .fl-status .icon-x     { display: block; }

/* ---------- FIELD HINT ---------- */
.fl-hint {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 4px;
  padding-left: 2px;
  display: block;
}
.fl-hint.is-error { color: var(--danger); }

/* ---------- PASSWORD STRENGTH BAR ---------- */
.strength-wrap {
  margin-top: 6px;
}
.strength-bar {
  display: flex;
  gap: 5px;
  height: 4px;
  margin-bottom: 5px;
}
.strength-seg {
  flex: 1;
  border-radius: 2px;
  background: var(--border);
  transition: background 0.3s ease;
}
.strength-seg.active-1 { background: var(--danger); }
.strength-seg.active-2 { background: #f97316; }
.strength-seg.active-3 { background: #eab308; }
.strength-seg.active-4 { background: var(--success); }

.strength-label {
  font-size: 0.72rem;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.02em;
  font-family: var(--mono);
}

/* ---------- VALIDATION CHECKLIST (Register) ---------- */
.pw-rules {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 8px;
  padding: 0;
}
.pw-rules li {
  font-size: 0.77rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s;
  font-family: var(--mono);
}
.pw-rules li::before {
  content: '○';
  font-size: 0.7rem;
  color: var(--border);
  transition: content 0.2s, color 0.2s;
  flex-shrink: 0;
}
.pw-rules li.met {
  color: var(--success);
}
.pw-rules li.met::before {
  content: '✓';
  color: var(--success);
}
.pw-rules li.unmet {
  color: var(--danger);
}
.pw-rules li.unmet::before {
  content: '✗';
  color: var(--danger);
}

/* ---------- SUBMIT BUTTON ---------- */
.btn-submit {
  width: 100%;
  padding: 12px 20px;
  font-size: 0.92rem;
  font-weight: 700;
  font-family: var(--sans);
  color: #fff;
  background: var(--blue);
  border: none;
  border-radius: 7px;
  cursor: pointer;
  letter-spacing: 0.01em;
  transition: background 0.2s, transform 0.15s, box-shadow 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 8px;
}
.btn-submit:hover {
  background: #1d4ed8;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(37,99,235,0.35);
}
.btn-submit:active {
  transform: translateY(0);
  box-shadow: none;
}
.btn-submit:disabled {
  background: #93c5fd;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Spinner inside button */
.btn-submit .spinner {
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: none;
}
.btn-submit.loading .spinner { display: inline-block; }
.btn-submit.loading .btn-text { opacity: 0.6; }

/* ---------- DIVIDER ---------- */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 24px 0;
  color: var(--muted);
  font-size: 0.78rem;
}
.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ---------- GLOBAL ERROR BANNER ---------- */
.auth-error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 0.83rem;
  color: #b91c1c;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  display: none;
}
.auth-error.show { display: flex; }
.auth-error svg { width: 16px; height: 16px; flex-shrink: 0; }

/* Account-deletion / general success banner */
.auth-success {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 0.83rem;
  color: #15803d;
  margin-bottom: 20px;
  display: none;
  align-items: center;
  gap: 8px;
}
.auth-success.show { display: flex; }
.auth-success svg { width: 16px; height: 16px; flex-shrink: 0; }

/* ---------- SUCCESS OVERLAY ---------- */
.success-overlay {
  position: absolute;
  inset: 0;
  background: var(--surface);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
  z-index: 10;
}
.success-overlay.show {
  opacity: 1;
  pointer-events: auto;
}
.success-icon {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: #f0fdf4;
  border: 2px solid var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
}
.success-icon svg { width: 30px; height: 30px; color: var(--success); }
.success-overlay h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
}
.success-overlay p {
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
  max-width: 240px;
}

/* ---------- FOOTER LINK ---------- */
.auth-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 0.8rem;
  color: var(--muted);
}
.auth-footer a {
  color: var(--blue);
  text-decoration: none;
  font-weight: 600;
}
.auth-footer a:hover { text-decoration: underline; }

/* ---------- LEGAL FOOTER (bottom of page) ---------- */
.legal-footer-bar {
  width: 100%;
  text-align: center;
  padding: 20px;
  font-size: 0.78rem;
  color: var(--muted);
}
.legal-footer-bar a { color: var(--muted); text-decoration: none; margin: 0 8px; }
.legal-footer-bar a:hover { color: var(--blue); }

/* ---------- CONSENT CHECKBOX ---------- */
.consent-wrap {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 20px;
  padding: 14px 16px;
  background: var(--blue-soft);
  border: 1.5px solid #bfdbfe;
  border-radius: 10px;
}
.consent-wrap input[type="checkbox"] {
  width: 18px;
  height: 18px;
  min-width: 18px;
  accent-color: var(--blue);
  margin-top: 2px;
  cursor: pointer;
  border-radius: 4px;
}
.consent-wrap label {
  font-size: 0.85rem;
  color: var(--text);
  line-height: 1.5;
  cursor: pointer;
}
.consent-wrap label a { color: var(--blue); font-weight: 600; text-decoration: none; }
.consent-wrap label a:hover { text-decoration: underline; }
.consent-wrap.is-error { border-color: var(--danger); background: #fef2f2; }
.consent-err { display: none; font-size: 0.78rem; color: var(--danger); margin-top: -12px; margin-bottom: 14px; }

/* ---------- OAUTH DIVIDER ---------- */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 22px 0 18px;
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: lowercase;
  letter-spacing: 0.03em;
}
.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: #e2e8f0;
}

/* ---------- GOOGLE BUTTON ---------- */
.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 12px 18px;
  background: #fff;
  color: #3c4043;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1.5px solid #dadce0;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.18s, box-shadow 0.18s, border-color 0.18s;
}
.btn-google:hover {
  background: #f7f8f8;
  border-color: #c6c9cc;
  box-shadow: 0 1px 3px rgba(60,64,67,.16);
}
.btn-google:active {
  background: #eef0f1;
}
.btn-google svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ---------- KEYFRAMES ---------- */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%       { transform: translateX(-6px); }
  40%       { transform: translateX(6px); }
  60%       { transform: translateX(-4px); }
  80%       { transform: translateX(4px); }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 480px) {
  .auth-card { padding: 28px 20px; }
  .auth-card-head h1 { font-size: 1.2rem; }
}