/* ==============================================================================
   URBANSTAY — OFFICIAL MASTER AUTH MODAL (STRICT ENTERPRISE DESIGN SYSTEM)
   Dedicated to PG Owners / Operators.
   Design Tokens:
   --green: #08A63F
   --green-dark: #068237
   --green-light: #EBF8EE
   --ink: #111111
   --muted: #6B7280
   --border: #E5E7EB
   --font: 'Outfit', sans-serif
   ============================================================================== */

:root {
  --ub-green: #08A63F;
  --ub-green-dark: #068237;
  --ub-green-light: #EBF8EE;
  --ub-green-glow: rgba(8, 166, 63, 0.14);
  --ub-ink: #111111;
  --ub-muted: #6B7280;
  --ub-light-muted: #9CA3AF;
  --ub-border: #E5E7EB;
  --ub-bg-card: #FFFFFF;
  --ub-bg-alt: #F8F9FA;
  --ub-font: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Frosted Backdrop */
.ub-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(17, 17, 17, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.25s;
}

.ub-modal-backdrop.is-active {
  opacity: 1;
  visibility: visible;
}

/* Modal Card Container */
.ub-modal-card {
  position: relative;
  background: var(--ub-bg-card);
  width: 100%;
  max-width: 420px;
  border-radius: 24px;
  border: 1.2px solid var(--ub-border);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.16), 0 4px 16px rgba(0, 0, 0, 0.04);
  overflow: hidden;
  font-family: var(--ub-font);
  color: var(--ub-ink);
  transform: translateY(14px) scale(0.98);
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  max-height: 92vh;
  display: flex;
  flex-direction: column;
}

.ub-modal-backdrop.is-active .ub-modal-card {
  transform: translateY(0) scale(1);
}

/* Head Bar */
.ub-modal-head {
  padding: 18px 22px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--ub-border);
  background: #FFFFFF;
}

.ub-modal-brand {
  display: inline-flex;
  flex-direction: column;
  line-height: 0.94;
  font-family: 'Ubuntu', sans-serif;
}

.ub-modal-brand .logo-u {
  color: var(--ub-green);
  font-size: 19px;
  font-weight: 500;
  letter-spacing: -0.015em;
}

.ub-modal-brand .logo-s {
  color: var(--ub-ink);
  font-size: 19px;
  font-weight: 500;
  letter-spacing: -0.015em;
}

.ub-modal-close {
  background: transparent;
  border: none;
  font-size: 24px;
  line-height: 1;
  color: var(--ub-muted);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 8px;
  transition: background 0.15s, color 0.15s;
}

.ub-modal-close:hover {
  background: #F3F4F6;
  color: var(--ub-ink);
}

/* Scrollable Body */
.ub-modal-body {
  padding: 22px 24px 26px;
  overflow-y: auto;
}

/* ==============================================================================
   1. HERO GREETING
   ============================================================================== */
.ub-hero-greeting {
  text-align: center;
  margin-bottom: 18px;
}

.ub-hero-title {
  font-size: 23px;
  font-weight: 800;
  letter-spacing: -0.6px;
  line-height: 1.2;
  color: var(--ub-ink);
  margin-bottom: 6px;
}

.ub-hero-sub {
  font-size: 13.5px;
  font-weight: 400;
  color: var(--ub-muted);
  line-height: 1.45;
}

/* ==============================================================================
   2. SEGMENTED AUTH MODE PILL (Register vs Sign In)
   ============================================================================== */
.ub-mode-pill {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: #F3F4F6;
  border-radius: 14px;
  padding: 4px;
  margin-bottom: 18px;
  gap: 4px;
}

.ub-mode-pill-btn {
  border: none;
  background: transparent;
  padding: 9px 12px;
  font-size: 13.5px;
  font-weight: 700;
  font-family: var(--ub-font);
  color: var(--ub-muted);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.18s ease;
  text-align: center;
}

.ub-mode-pill-btn.active {
  background: #FFFFFF;
  color: var(--ub-ink);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
}

/* ==============================================================================
   3. FORM INPUT FIELDS
   ============================================================================== */
.ub-form-group {
  margin-bottom: 12px;
}

.ub-label {
  display: block;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--ub-ink);
  margin-bottom: 5px;
  letter-spacing: -0.1px;
}

.ub-input {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  border: 1.5px solid var(--ub-border);
  border-radius: 12px;
  font-size: 14.5px;
  font-weight: 600;
  font-family: var(--ub-font);
  color: var(--ub-ink);
  background: #FFFFFF;
  outline: none;
  box-sizing: border-box;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.ub-input::placeholder {
  color: var(--ub-light-muted);
  font-weight: 400;
}

.ub-input:focus {
  border-color: var(--ub-green);
  box-shadow: 0 0 0 3px var(--ub-green-glow);
}

/* Phone Input with +91 Country Badge */
.ub-phone-row {
  display: flex;
  gap: 8px;
}

.ub-flag-pill {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  background: #FFFFFF;
  border: 1.5px solid var(--ub-border);
  border-radius: 12px;
  padding: 0 14px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--ub-ink);
  white-space: nowrap;
  flex-shrink: 0;
  box-sizing: border-box;
}

/* Terms single line */
.ub-terms-text {
  font-size: 11.5px;
  font-weight: 500;
  color: var(--ub-muted);
  margin-top: 6px;
  margin-bottom: 14px;
  line-height: 1.35;
}

.ub-terms-text a {
  color: var(--ub-green);
  font-weight: 700;
  text-decoration: underline;
}

/* Primary Emerald Green CTA */
.ub-btn-submit {
  width: 100%;
  height: 50px;
  padding: 0 16px;
  background: var(--ub-green);
  color: #FFFFFF;
  border: none;
  border-radius: 14px;
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: -0.2px;
  font-family: var(--ub-font);
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(8, 166, 63, 0.35);
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.ub-btn-submit:hover {
  background: var(--ub-green-dark);
  box-shadow: 0 6px 18px rgba(8, 166, 63, 0.42);
}

.ub-btn-submit:active {
  transform: scale(0.99);
}

.ub-btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ==============================================================================
   4. OTP VERIFICATION VIEW
   ============================================================================== */
.ub-otp-meta {
  margin-bottom: 14px;
}

.ub-otp-meta-title {
  font-size: 13px;
  color: var(--ub-muted);
  font-weight: 500;
  margin-bottom: 3px;
}

.ub-otp-phone-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ub-otp-phone-bold {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.3px;
  color: var(--ub-ink);
}

.ub-otp-edit-btn {
  background: none;
  border: none;
  color: var(--ub-green);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
  font-family: var(--ub-font);
}

/* 6 Auto-Advancing Digit Input Boxes */
.ub-otp-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
  margin: 16px 0 12px;
}

.ub-otp-digit {
  width: 100%;
  height: 52px;
  text-align: center;
  font-size: 21px;
  font-weight: 800;
  font-family: var(--ub-font);
  border: 1.5px solid var(--ub-border);
  border-radius: 12px;
  background: #FFFFFF;
  outline: none;
  color: var(--ub-ink);
  box-sizing: border-box;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.ub-otp-digit:focus {
  border-color: var(--ub-green);
  box-shadow: 0 0 0 3px var(--ub-green-glow);
}

/* Resend Row */
.ub-resend-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--ub-muted);
  margin-bottom: 14px;
}

.ub-resend-btn {
  background: none;
  border: none;
  color: var(--ub-green);
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  padding: 0;
  font-family: var(--ub-font);
  text-decoration: underline;
}

.ub-resend-btn:disabled {
  color: var(--ub-light-muted);
  text-decoration: none;
  cursor: not-allowed;
}

/* Error message banner */
.ub-error-banner {
  background: #FEF2F2;
  border: 1px solid #FCA5A5;
  color: #DC2626;
  font-size: 12.5px;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 10px;
  margin-bottom: 12px;
}


/* ==============================================================================
   5. SUCCESS CARD
   ============================================================================== */
.ub-success-view {
  text-align: center;
  padding: 16px 0 8px;
}

.ub-success-icon-wrap {
  width: 72px;
  height: 72px;
  background: var(--ub-green);
  color: #FFFFFF;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 38px;
  box-shadow: 0 8px 24px rgba(8, 166, 63, 0.38);
  margin-bottom: 16px;
  animation: ubSpringIn 0.65s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes ubSpringIn {
  from { transform: scale(0.3); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.ub-success-title {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.4px;
  color: var(--ub-ink);
  margin-bottom: 6px;
}

.ub-success-desc {
  font-size: 13.5px;
  color: var(--ub-muted);
  line-height: 1.45;
  font-weight: 500;
}

.ub-success-indicator {
  width: 32px;
  height: 4px;
  background: var(--ub-green);
  border-radius: 999px;
  margin: 16px auto 0;
}