/* ============================================================
   OPTIQ — AUTH.CSS
   Login & Register pages — shared styles
   ============================================================ */

/* ===== AUTH BODY ===== */
.auth-body {
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--bg-base);
}

/* Background grid */
.auth-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse 90% 90% at 50% 50%, black, transparent);
  pointer-events: none;
  z-index: 0;
}

/* Orbs */
.auth-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  z-index: 0;
}
.auth-orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(124,58,237,0.18) 0%, transparent 70%);
  top: -200px; left: -200px;
  animation: orb-float 8s ease-in-out infinite;
}
.auth-orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(6,182,212,0.14) 0%, transparent 70%);
  bottom: -200px; right: -150px;
  animation: orb-float 10s ease-in-out infinite reverse;
}
@keyframes orb-float {
  0%,100% { transform: translate(0,0); }
  50% { transform: translate(30px, -30px); }
}

/* ===== AUTH NAV ===== */
.auth-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(4,8,17,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.auth-nav-inner {
  display: flex;
  align-items: center;
  height: 64px;
  gap: 16px;
}
.auth-nav-sep {
  margin-left: auto;
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== AUTH MAIN ===== */
.auth-main {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  padding-top: 64px;
  display: flex;
  align-items: stretch;
}

.auth-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: calc(100vh - 64px);
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

/* ===== LEFT PANEL ===== */
.auth-left {
  background: linear-gradient(160deg, rgba(124,58,237,0.07) 0%, rgba(6,182,212,0.04) 100%);
  border-right: 1px solid var(--border);
  padding: 60px 48px;
  display: flex;
  align-items: center;
}

.auth-left-inner {
  max-width: 440px;
}

.auth-brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.2);
  border-radius: 100px;
  padding: 5px 14px;
  font-size: 12px;
  color: #10B981;
  font-weight: 600;
  margin-bottom: 24px;
}

.auth-brand-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.auth-brand-sub {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

.auth-features-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.auth-feat {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-secondary);
}

.auth-feat-icon {
  width: 26px; height: 26px;
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.auth-feat-green { background: rgba(16,185,129,0.2); }
.auth-feat-cyan { background: rgba(6,182,212,0.2); }
.auth-feat-purple { background: rgba(124,58,237,0.2); }
.auth-feat-orange { background: rgba(245,158,11,0.2); }

/* Auth Preview Card */
.auth-preview-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-top: 8px;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.preview-live {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  color: #10B981;
  letter-spacing: 1px;
}

.preview-time {
  font-size: 11px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.preview-signals {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.preview-signal {
  padding: 10px 8px;
  border-radius: var(--radius-sm);
  text-align: center;
  border: 1px solid;
}
.preview-buy { background: rgba(16,185,129,0.08); border-color: rgba(16,185,129,0.2); }
.preview-sell { background: rgba(239,68,68,0.08); border-color: rgba(239,68,68,0.2); }
.preview-neutral { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.2); }

.preview-sig-label {
  display: block;
  font-size: 9px;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}
.preview-sig-val {
  display: block;
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 2px;
}
.preview-buy .preview-sig-val { color: #10B981; }
.preview-sell .preview-sig-val { color: #EF4444; }
.preview-neutral .preview-sig-val { color: #F59E0B; }
.preview-sig-pcr {
  display: block;
  font-size: 9px;
  color: var(--text-muted);
}

/* Plan Compare (Register left) */
.plan-compare {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 24px;
}

.plan-compare-header {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.plan-compare-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 10px;
}
.pci-check { color: #10B981; font-weight: 700; flex-shrink: 0; }

/* Auth Testimonial */
.auth-testimonial {
  padding: 16px;
  background: rgba(124,58,237,0.06);
  border: 1px solid rgba(124,58,237,0.15);
  border-radius: var(--radius-md);
}
.auth-testi-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  font-style: italic;
  margin-bottom: 12px;
}
.auth-testi-author {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ===== RIGHT PANEL ===== */
.auth-right {
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== AUTH CARD ===== */
.auth-card {
  width: 100%;
  max-width: 420px;
}

.auth-card-header {
  margin-bottom: 28px;
}

.auth-title {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}

.auth-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}
.auth-subtitle strong { color: var(--text-primary); }

.auth-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-bottom: 20px;
  transition: color var(--transition-fast);
  font-family: var(--font-primary);
}
.auth-back-btn:hover { color: var(--text-secondary); }

/* ===== GOOGLE BUTTON ===== */
.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 11px 20px;
  background: rgba(255,255,255,0.04);
  border: 1.5px solid var(--border-hover);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: var(--font-primary);
}
.btn-google:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}
.btn-google:active { transform: translateY(0); }

/* ===== DIVIDER ===== */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
  color: var(--text-muted);
  font-size: 12px;
}
.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ===== TABS ===== */
.auth-tabs {
  display: flex;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 4px;
  margin-bottom: 20px;
  gap: 4px;
}

.auth-tab {
  flex: 1;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: var(--font-primary);
}
.auth-tab.active {
  background: var(--bg-card);
  color: var(--text-primary);
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.auth-tab:hover:not(.active) { color: var(--text-secondary); }

/* ===== FORMS ===== */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-label-link {
  font-size: 12px;
  font-weight: 500;
  color: var(--accent-purple);
  transition: color var(--transition-fast);
}
.form-label-link:hover { color: var(--accent-cyan); }

.form-label-hint {
  font-size: 11px;
  font-weight: 400;
  color: var(--text-muted);
}

.form-input {
  width: 100%;
  padding: 11px 14px;
  background: var(--bg-surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  font-family: var(--font-primary);
  transition: all var(--transition-base);
  outline: none;
}
.form-input::placeholder { color: var(--text-muted); }
.form-input:focus {
  border-color: var(--accent-purple);
  background: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.12);
}
.form-input.input-error {
  border-color: #EF4444;
  box-shadow: 0 0 0 3px rgba(239,68,68,0.1);
}
.form-input.input-success {
  border-color: #10B981;
  box-shadow: 0 0 0 3px rgba(16,185,129,0.1);
}

.form-error {
  font-size: 12px;
  color: #EF4444;
  min-height: 16px;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Phone input */
.phone-input-wrap {
  display: flex;
  align-items: center;
  background: var(--bg-surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-base);
}
.phone-input-wrap:focus-within {
  border-color: var(--accent-purple);
  background: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.12);
}
.phone-prefix {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 12px;
  border-right: 1px solid var(--border);
  height: 100%;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  flex-shrink: 0;
  background: rgba(255,255,255,0.02);
}
.phone-number-input {
  border: none !important;
  box-shadow: none !important;
  background: transparent !important;
  border-radius: 0 !important;
  flex: 1;
}

/* Password toggle */
.input-icon-wrap { position: relative; }
.input-icon-wrap .form-input { padding-right: 44px; }
.input-icon-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px;
  display: flex;
  align-items: center;
  transition: color var(--transition-fast);
}
.input-icon-btn:hover { color: var(--text-secondary); }

/* Password strength */
.password-strength {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}
.strength-bars {
  display: flex;
  gap: 4px;
  flex: 1;
}
.strength-bar {
  height: 4px;
  flex: 1;
  border-radius: 2px;
  background: var(--border);
  transition: background var(--transition-base);
}
.strength-bar.weak { background: #EF4444; }
.strength-bar.fair { background: #F59E0B; }
.strength-bar.good { background: #06B6D4; }
.strength-bar.strong { background: #10B981; }
.strength-label {
  font-size: 11px;
  font-weight: 600;
  min-width: 40px;
  color: var(--text-muted);
}

/* Checkbox */
.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}
.checkbox-label input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.checkbox-custom {
  width: 18px; height: 18px;
  border: 1.5px solid var(--border-hover);
  border-radius: 5px;
  background: var(--bg-surface);
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition-base);
  margin-top: 1px;
}
.checkbox-label input:checked + .checkbox-custom {
  background: var(--gradient-primary);
  border-color: transparent;
}
.checkbox-label input:checked + .checkbox-custom::after {
  content: '✓';
  font-size: 11px;
  color: #fff;
  font-weight: 700;
  line-height: 1;
}
.checkbox-label:hover .checkbox-custom { border-color: var(--accent-purple); }

/* ===== AUTH BUTTON ===== */
.btn-auth {
  padding: 13px 20px;
  font-size: 15px;
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
}

.btn-spinner {
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== OTP INPUTS ===== */
.otp-inputs {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin: 24px 0 8px;
}

.otp-input {
  width: 52px; height: 60px;
  text-align: center;
  font-size: 24px;
  font-weight: 700;
  font-family: var(--font-display);
  background: var(--bg-surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  outline: none;
  transition: all var(--transition-base);
  caret-color: var(--accent-purple);
}
.otp-input:focus {
  border-color: var(--accent-purple);
  background: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.15);
  transform: scale(1.05);
}
.otp-input.otp-filled {
  border-color: rgba(124,58,237,0.5);
  background: rgba(124,58,237,0.05);
}
.otp-input.otp-error {
  border-color: #EF4444;
  box-shadow: 0 0 0 3px rgba(239,68,68,0.1);
  animation: shake 0.4s ease;
}
.otp-input.otp-success {
  border-color: #10B981;
  background: rgba(16,185,129,0.05);
}

@keyframes shake {
  0%,100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

.otp-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 12px;
}

.otp-resend {
  text-align: center;
  margin: 8px 0 4px;
}
.resend-timer {
  font-size: 13px;
  color: var(--text-muted);
}
.resend-timer strong { color: var(--text-secondary); }
.resend-btn {
  font-size: 13px;
  color: var(--accent-purple);
  background: none;
  border: none;
  cursor: pointer;
  font-weight: 600;
  font-family: var(--font-primary);
  transition: color var(--transition-fast);
}
.resend-btn:hover { color: var(--accent-cyan); }

.otp-demo-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(245,158,11,0.07);
  border: 1px solid rgba(245,158,11,0.15);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 16px;
}
.otp-demo-hint strong { color: #F59E0B; }

/* ===== SUCCESS ANIMATION ===== */
.success-animation {
  display: flex;
  justify-content: center;
  margin-bottom: 8px;
}

.success-circle {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: rgba(16,185,129,0.1);
  border: 2px solid rgba(16,185,129,0.3);
  display: flex; align-items: center; justify-content: center;
  animation: success-pop 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) both;
  box-shadow: 0 0 40px rgba(16,185,129,0.2);
}

@keyframes success-pop {
  from { transform: scale(0); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

/* Redirect progress bar */
.redirect-bar {
  width: 100%;
  height: 4px;
  background: var(--bg-elevated);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 24px;
}
.redirect-progress {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 2px;
  width: 0%;
  transition: width 2.5s linear;
}

/* ===== STEP INDICATOR ===== */
.step-indicator {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 20px;
}

.step-dot {
  width: 28px; height: 28px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  transition: all var(--transition-base);
}
.step-dot-active {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 0 16px rgba(124,58,237,0.4);
}
.step-dot-inactive {
  background: var(--bg-elevated);
  color: var(--text-muted);
  border: 1.5px solid var(--border);
}
.step-dot-done {
  background: rgba(16,185,129,0.15);
  color: #10B981;
  border: 1.5px solid rgba(16,185,129,0.3);
}

.step-line {
  flex: 1;
  height: 2px;
  transition: background var(--transition-base);
}
.step-line-inactive { background: var(--border); }
.step-line-active { background: var(--gradient-primary); }

/* ===== REGISTER PLAN SELECTOR ===== */
.reg-plans {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.reg-plan {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: var(--bg-surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
}
.reg-plan:hover {
  border-color: rgba(124,58,237,0.3);
  background: var(--bg-card);
}
.reg-plan-selected {
  border-color: rgba(124,58,237,0.5);
  background: rgba(124,58,237,0.07);
}

.reg-plan-radio {
  width: 18px; height: 18px;
  border-radius: 50%;
  border: 2px solid var(--border-hover);
  flex-shrink: 0;
  transition: all var(--transition-base);
  position: relative;
}
.reg-plan-radio-checked {
  border-color: var(--accent-purple);
  background: var(--accent-purple);
}
.reg-plan-radio-checked::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #fff;
}

.reg-plan-info { flex: 1; }
.reg-plan-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 2px;
}
.popular-tag {
  font-size: 10px;
  font-weight: 700;
  color: #F59E0B;
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.25);
  border-radius: 4px;
  padding: 1px 6px;
}
.reg-plan-price {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}
.reg-plan-price span { font-size: 12px; font-weight: 400; color: var(--text-muted); }
.reg-plan-desc { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

.reg-plan-badge {
  font-size: 9px;
  font-weight: 700;
  color: transparent;
  background: transparent;
  border-radius: 4px;
  padding: 2px 6px;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}
.reg-plan-badge-active {
  color: var(--accent-purple);
  background: rgba(124,58,237,0.1);
  border: 1px solid rgba(124,58,237,0.25);
}

/* Trial note */
.trial-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 16px;
  background: rgba(16,185,129,0.05);
  border: 1px solid rgba(16,185,129,0.15);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}

/* Welcome plan card */
.welcome-plan-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  background: rgba(124,58,237,0.08);
  border: 1px solid rgba(124,58,237,0.25);
  border-radius: var(--radius-md);
  margin-top: 16px;
}
.welcome-plan-icon {
  font-size: 24px;
  width: 44px; height: 44px;
  background: rgba(124,58,237,0.1);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
}
.welcome-plan-name {
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
}
.welcome-plan-trial {
  font-size: 12px;
  color: #10B981;
}

/* ===== AUTH CARD FOOTER ===== */
.auth-card-footer {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.auth-link {
  color: var(--accent-purple);
  font-weight: 600;
  transition: color var(--transition-fast);
}
.auth-link:hover { color: var(--accent-cyan); }

.auth-terms {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.5;
}
.auth-terms .auth-link { font-size: 11px; font-weight: 500; }

/* ===== HIDDEN UTILITY ===== */
.hidden { display: none !important; }

/* ===== REGISTER SPECIFIC ===== */
.register-container {
  grid-template-columns: 1.1fr 0.9fr;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .auth-container, .register-container {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }
  .auth-left {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 40px 24px 32px;
  }
  .auth-left-inner { max-width: 100%; }
  .auth-right { padding: 32px 24px 48px; }
  .auth-container { min-height: auto; }
  .auth-preview-card { display: none; }
  .auth-brand-title { font-size: 28px; }
  .auth-features-list { display: grid; grid-template-columns: 1fr 1fr; }
}

@media (max-width: 540px) {
  .auth-nav-sep { display: none; }
  .auth-right { padding: 24px 16px 40px; }
  .auth-left { padding: 32px 16px 24px; }
  .auth-features-list { grid-template-columns: 1fr; }
  .otp-inputs { gap: 6px; }
  .otp-input { width: 44px; height: 52px; font-size: 20px; }
  .form-row { grid-template-columns: 1fr; }
  .preview-signals { grid-template-columns: 1fr; gap: 6px; }
}