/* ===================================================
   POPUP.CSS — Binance Welcome Bonus Popup
   Dark luxury fintech design with Binance gold accents,
   glassmorphism, clean hierarchy, and mobile-first responsiveness.
   =================================================== */

/* ---------------------------------------------------
   CSS Custom Properties (Popup Scope)
   --------------------------------------------------- */
:root {
  --popup-gold: #F3BA2F;
  --popup-gold-light: #FFD666;
  --popup-gold-dark: #C9960E;
  --popup-gold-glow: rgba(243, 186, 47, 0.28);
  --popup-bg-dark: #0B0E11;
  --popup-bg-card: rgba(18, 22, 28, 0.96);
  --popup-card-inner: rgba(26, 32, 42, 0.7);
  --popup-border: rgba(243, 186, 47, 0.22);
  --popup-border-hover: rgba(243, 186, 47, 0.45);
  --popup-text-primary: #FFFFFF;
  --popup-text-secondary: #B7BDC6;
  --popup-text-muted: #848E9C;
  --popup-radius: 20px;
  --popup-radius-sm: 12px;
  --popup-radius-btn: 14px;
  --popup-transition: 280ms cubic-bezier(0.16, 1, 0.3, 1);
  --popup-max-width: 500px;
}

/* ---------------------------------------------------
   Overlay — Dark scrim with backdrop blur
   --------------------------------------------------- */
.popup-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem;

  /* Hidden state */
  opacity: 0;
  visibility: hidden;
  pointer-events: none;

  transition:
    opacity var(--popup-transition),
    visibility var(--popup-transition);
}

.popup-overlay.popup-overlay--active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.popup-overlay::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(4, 6, 9, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

/* ---------------------------------------------------
   Popup Card — Luxury Glassmorphism Container
   --------------------------------------------------- */
.popup {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--popup-max-width);
  max-height: 92vh;
  overflow-y: auto;
  overscroll-behavior: contain;

  /* Sleek modern scrollbar */
  scrollbar-width: thin;
  scrollbar-color: rgba(243, 186, 47, 0.3) transparent;

  background: var(--popup-bg-card);
  backdrop-filter: blur(32px) saturate(1.5);
  -webkit-backdrop-filter: blur(32px) saturate(1.5);
  border: 1px solid var(--popup-border);
  border-radius: var(--popup-radius);

  box-shadow:
    0 0 60px rgba(243, 186, 47, 0.1),
    0 30px 90px rgba(0, 0, 0, 0.65),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);

  transform: scale(0.93) translateY(12px);
  transition:
    transform var(--popup-transition),
    opacity var(--popup-transition);
}

.popup::-webkit-scrollbar {
  width: 4px;
}
.popup::-webkit-scrollbar-track {
  background: transparent;
}
.popup::-webkit-scrollbar-thumb {
  background: rgba(243, 186, 47, 0.3);
  border-radius: 4px;
}

.popup-overlay--active .popup {
  transform: scale(1) translateY(0);
}

/* ---------------------------------------------------
   Decorative Gold Ambient Orbs
   --------------------------------------------------- */
.popup__orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(40px);
}

.popup__orb--1 {
  top: -40px;
  left: 50%;
  transform: translateX(-50%);
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(243, 186, 47, 0.16) 0%, transparent 70%);
}

.popup__orb--2 {
  bottom: -30px;
  right: -20px;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(243, 186, 47, 0.08) 0%, transparent 70%);
}

/* ---------------------------------------------------
   Close Button (X)
   --------------------------------------------------- */
.popup__close {
  position: absolute;
  top: 0.875rem;
  right: 0.875rem;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  color: var(--popup-text-secondary);
  cursor: pointer;
  transition:
    background var(--popup-transition),
    color var(--popup-transition),
    border-color var(--popup-transition),
    transform var(--popup-transition);
}

.popup__close:hover,
.popup__close:focus-visible {
  background: rgba(243, 186, 47, 0.15);
  border-color: var(--popup-border-hover);
  color: var(--popup-gold);
  transform: rotate(90deg);
}

.popup__close:focus-visible {
  outline: 2px solid var(--popup-gold);
  outline-offset: 2px;
}

.popup__close svg {
  width: 18px;
  height: 18px;
  stroke-width: 2;
}

/* ---------------------------------------------------
   Inner Content Container
   --------------------------------------------------- */
.popup__inner {
  position: relative;
  z-index: 2;
  padding: 1.75rem 1.25rem 1.35rem;
  text-align: center;
}

/* ---------------------------------------------------
   1. Small Badge: NEW USER REWARDS
   --------------------------------------------------- */
.popup__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.85rem;
  margin-bottom: 0.75rem;
  background: rgba(243, 186, 47, 0.1);
  border: 1px solid rgba(243, 186, 47, 0.3);
  border-radius: 9999px;
  color: var(--popup-gold);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  box-shadow: 0 0 16px rgba(243, 186, 47, 0.15);
}

.popup__badge-icon {
  font-size: 0.85rem;
  line-height: 1;
}

/* ---------------------------------------------------
   2. Elegant Crypto / Reward Voucher Visual
   --------------------------------------------------- */
.popup__visual {
  display: flex;
  justify-content: center;
  margin-bottom: 0.75rem;
}

.popup__visual-icon {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(243, 186, 47, 0.18) 0%, rgba(20, 24, 30, 0.6) 100%);
  border: 1px solid rgba(243, 186, 47, 0.25);
  box-shadow: 0 0 24px rgba(243, 186, 47, 0.2);
  animation: popup-voucher-float 3.5s ease-in-out infinite;
}

@keyframes popup-voucher-float {
  0%, 100% { transform: translateY(0) scale(1); }
  50%      { transform: translateY(-3px) scale(1.03); }
}

.popup__voucher-svg {
  width: 44px;
  height: 44px;
}

/* ---------------------------------------------------
   3. Highlight Card: UP TO $19,800 (STRONGEST ELEMENT)
   --------------------------------------------------- */
.popup__highlight-card {
  position: relative;
  padding: 1.1rem 1rem 1rem;
  margin-bottom: 0.85rem;
  background: linear-gradient(
    145deg,
    rgba(243, 186, 47, 0.12) 0%,
    rgba(25, 30, 38, 0.85) 60%,
    rgba(15, 18, 24, 0.95) 100%
  );
  border: 1px solid rgba(243, 186, 47, 0.35);
  border-radius: 16px;
  box-shadow:
    0 0 28px rgba(243, 186, 47, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

.popup__highlight-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--popup-gold), transparent);
}

.popup__highlight-tag {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--popup-gold);
  margin-bottom: 0.25rem;
}

.popup__highlight-main {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.35rem;
}

.popup__highlight-prefix {
  display: none; /* Already incorporated in amount */
}

/* STRONGEST VISUAL ELEMENT */
.popup__highlight-amount {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: clamp(1.85rem, 6vw, 2.45rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  background: linear-gradient(
    135deg,
    #FFFFFF 0%,
    #FFF4D4 20%,
    #FFD666 45%,
    #F3BA2F 75%,
    #E5A81A 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 2px 14px rgba(243, 186, 47, 0.4));
}

/* SECOND STRONGEST CUE */
.popup__highlight-sub {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-top: 0.2rem;
  letter-spacing: -0.01em;
}

/* ---------------------------------------------------
   4. Headline
   --------------------------------------------------- */
.popup__headline {
  margin: 0 0 0.5rem;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: clamp(1.1rem, 3.8vw, 1.3rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--popup-text-primary);
  letter-spacing: -0.02em;
}

.popup__headline-highlight {
  background: linear-gradient(135deg, var(--popup-gold-light), var(--popup-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------------------------------------------------
   5. Supporting Message
   --------------------------------------------------- */
.popup__message {
  margin: 0 0 0.65rem;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.55;
  color: var(--popup-text-secondary);
}

/* ---------------------------------------------------
   6. Eligibility & Terms Note (CHECK ELIGIBILITY)
   --------------------------------------------------- */
.popup__terms-note {
  margin: 0 0 1rem;
  padding: 0.5rem 0.75rem;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--popup-radius-sm);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.45;
  color: #D1D5DB;
}

/* ---------------------------------------------------
   7. Buttons Container
   --------------------------------------------------- */
.popup__actions {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin-bottom: 0.85rem;
}

/* ---------------------------------------------------
   Primary Button — START NOW (THIRD STRONGEST ELEMENT)
   --------------------------------------------------- */
.popup__btn-primary {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.95rem 1.5rem;
  border: none;
  border-radius: var(--popup-radius-btn);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--popup-bg-dark);
  cursor: pointer;
  text-decoration: none;
  text-transform: uppercase;
  overflow: hidden;

  /* Binance Gold Gradient */
  background: linear-gradient(
    135deg,
    var(--popup-gold-light) 0%,
    var(--popup-gold) 45%,
    var(--popup-gold-dark) 100%
  );

  box-shadow:
    0 0 24px rgba(243, 186, 47, 0.35),
    0 4px 16px rgba(0, 0, 0, 0.4);

  transition:
    transform var(--popup-transition),
    box-shadow var(--popup-transition),
    filter var(--popup-transition);
}

/* Shimmer shine effect */
.popup__btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    110deg,
    transparent 20%,
    rgba(255, 255, 255, 0.28) 50%,
    transparent 80%
  );
  transform: translateX(-100%);
  transition: transform 0.65s ease;
}

.popup__btn-primary:hover::before,
.popup__btn-primary:focus-visible::before {
  transform: translateX(100%);
}

.popup__btn-primary:hover,
.popup__btn-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow:
    0 0 32px rgba(243, 186, 47, 0.5),
    0 8px 24px rgba(0, 0, 0, 0.5);
  filter: brightness(1.06);
}

.popup__btn-primary:focus-visible {
  outline: 2px solid #FFFFFF;
  outline-offset: 3px;
}

.popup__btn-primary:active {
  transform: translateY(0) scale(0.98);
}

.popup__btn-primary svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform var(--popup-transition);
}

.popup__btn-primary:hover svg {
  transform: translateX(3px);
}

/* ---------------------------------------------------
   Secondary Button — Maybe Later
   --------------------------------------------------- */
.popup__btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.75rem 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--popup-radius-btn);
  background: rgba(255, 255, 255, 0.04);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--popup-text-secondary);
  cursor: pointer;
  text-decoration: none;
  transition:
    background var(--popup-transition),
    border-color var(--popup-transition),
    color var(--popup-transition),
    transform var(--popup-transition);
}

.popup__btn-secondary:hover,
.popup__btn-secondary:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.22);
  color: var(--popup-text-primary);
  transform: translateY(-1px);
}

.popup__btn-secondary:focus-visible {
  outline: 2px solid var(--popup-gold);
  outline-offset: 3px;
}

.popup__btn-secondary:active {
  transform: translateY(0);
}

/* ---------------------------------------------------
   8. Disclaimer
   --------------------------------------------------- */
.popup__disclaimer {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 0.7rem;
  font-weight: 400;
  line-height: 1.45;
  color: var(--popup-text-muted);
}

/* ---------------------------------------------------
   Body scroll lock when popup is open
   --------------------------------------------------- */
body.popup-open {
  overflow: hidden;
}

.popup:focus {
  outline: none;
}

/* ---------------------------------------------------
   RESPONSIVE DESIGN (Mobile-First)
   --------------------------------------------------- */

/* Small mobile devices (360px and below) */
@media (max-width: 365px) {
  .popup-overlay {
    padding: 0.5rem;
  }

  .popup__inner {
    padding: 1.4rem 0.95rem 1.15rem;
  }

  .popup__badge {
    font-size: 0.7rem;
    padding: 0.25rem 0.65rem;
    margin-bottom: 0.5rem;
  }

  .popup__visual-icon {
    width: 50px;
    height: 50px;
  }

  .popup__voucher-svg {
    width: 36px;
    height: 36px;
  }

  .popup__highlight-card {
    padding: 0.9rem 0.75rem 0.85rem;
    margin-bottom: 0.7rem;
  }

  .popup__highlight-amount {
    font-size: 1.75rem;
  }

  .popup__highlight-sub {
    font-size: 0.95rem;
  }

  .popup__headline {
    font-size: 1.05rem;
    margin-bottom: 0.4rem;
  }

  .popup__message {
    font-size: 0.8125rem;
    line-height: 1.45;
    margin-bottom: 0.5rem;
  }

  .popup__terms-note {
    font-size: 0.7rem;
    padding: 0.4rem 0.6rem;
    margin-bottom: 0.8rem;
  }

  .popup__btn-primary {
    padding: 0.85rem 1.25rem;
    font-size: 0.9375rem;
  }

  .popup__btn-secondary {
    padding: 0.7rem 1rem;
    font-size: 0.8125rem;
  }

  .popup__disclaimer {
    font-size: 0.65rem;
  }
}

/* Standard mobile devices (366px - 430px) */
@media (min-width: 366px) and (max-width: 430px) {
  .popup__inner {
    padding: 1.6rem 1.15rem 1.25rem;
  }

  .popup__highlight-card {
    padding: 1rem 0.85rem;
  }

  .popup__highlight-amount {
    font-size: 2.1rem;
  }
}

/* Tablets and up (min 600px) */
@media (min-width: 600px) {
  .popup__inner {
    padding: 2.25rem 2rem 1.75rem;
  }

  .popup__highlight-card {
    padding: 1.25rem 1.5rem;
    margin-bottom: 1rem;
  }

  .popup__highlight-amount {
    font-size: 2.45rem;
  }

  .popup__highlight-sub {
    font-size: 1.125rem;
  }

  .popup__headline {
    font-size: 1.35rem;
  }

  .popup__message {
    font-size: 0.9375rem;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
  }

  .popup__terms-note {
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
  }

  .popup__actions {
    max-width: 380px;
    margin-left: auto;
    margin-right: auto;
  }

  .popup__disclaimer {
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
  }
}

/* Desktop screens (min 768px) */
@media (min-width: 768px) {
  :root {
    --popup-max-width: 520px;
  }

  .popup {
    box-shadow:
      0 0 80px rgba(243, 186, 47, 0.14),
      0 35px 100px rgba(0, 0, 0, 0.7),
      inset 0 1px 0 rgba(255, 255, 255, 0.1);
  }
}

/* ---------------------------------------------------
   Reduced Motion
   --------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .popup-overlay,
  .popup,
  .popup__close,
  .popup__btn-primary,
  .popup__btn-secondary,
  .popup__btn-primary::before,
  .popup__visual-icon {
    transition: none !important;
    animation: none !important;
  }

  .popup-overlay--active .popup {
    transform: none;
  }
}