/* Signup / Login option pages — premium dark theme */
:root {
  --opt-bg-deep: var(--dvc-bg-dark);
  --opt-navy: var(--dvc-bg-secondary);
  --opt-blue: var(--dvc-card-bg);
  --opt-card-bg: rgba(33, 21, 44, 0.94);
  --opt-gold: var(--dvc-soft-purple);
  --opt-gold-light: var(--dvc-soft-purple);
  --opt-gold-border: rgba(168, 85, 247, 0.50);
  --opt-white: var(--dvc-text-light);
  --opt-muted: var(--dvc-text-muted);
  --opt-radius: 18px;
}

html.opt-page-root,
body.opt-page {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--opt-white);
  background: var(--opt-bg-deep);
  overflow-x: hidden;
}

/* Background */
.opt-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 72% 58% at 50% 44%, rgba(23, 16, 32, 0.92) 0%, transparent 68%),
    linear-gradient(180deg, var(--dvc-bg-dark) 0%, var(--dvc-bg-secondary) 48%, var(--dvc-bg-dark) 100%);
}

.opt-deco {
  position: absolute;
  pointer-events: none;
}

.opt-deco--curve-tl {
  top: -20px;
  left: -30px;
  width: 280px;
  height: 200px;
  border-top: 1px solid rgba(168, 85, 247, 0.28);
  border-right: 1px solid rgba(168, 85, 247, 0.18);
  border-radius: 0 0 120px 0;
  opacity: 0.7;
}

.opt-deco--curve-br {
  bottom: -30px;
  right: -40px;
  width: 320px;
  height: 220px;
  border-bottom: 1px solid rgba(168, 85, 247, 0.25);
  border-left: 1px solid rgba(168, 85, 247, 0.15);
  border-radius: 120px 0 0 0;
  opacity: 0.65;
}

.opt-deco--dots-tl {
  top: 48px;
  left: 48px;
  width: 56px;
  height: 56px;
  background-image: radial-gradient(rgba(168, 85, 247, 0.45) 1.5px, transparent 1.5px);
  background-size: 10px 10px;
  opacity: 0.4;
}

.opt-deco--dots-tr {
  top: 56px;
  right: 56px;
  width: 48px;
  height: 48px;
  background-image: radial-gradient(rgba(168, 85, 247, 0.38) 1.5px, transparent 1.5px);
  background-size: 9px 9px;
  opacity: 0.35;
}

.opt-deco--particles {
  inset: 0;
  background-image:
    radial-gradient(rgba(168, 85, 247, 0.35) 1px, transparent 1px),
    radial-gradient(rgba(168, 85, 247, 0.2) 1px, transparent 1px);
  background-size: 120px 120px, 180px 180px;
  background-position: 20% 30%, 80% 60%;
  opacity: 0.25;
}

.opt-deco--floor {
  bottom: 0;
  left: 0;
  right: 0;
  height: 140px;
  background:
    linear-gradient(180deg, transparent 0%, rgba(33, 21, 44, 0.35) 100%),
    repeating-linear-gradient(90deg, rgba(168, 85, 247, 0.06) 0, rgba(168, 85, 247, 0.06) 1px, transparent 1px, transparent 48px),
    repeating-linear-gradient(0deg, rgba(168, 85, 247, 0.05) 0, rgba(168, 85, 247, 0.05) 1px, transparent 1px, transparent 32px);
  opacity: 0.55;
  transform: perspective(400px) rotateX(55deg);
  transform-origin: bottom center;
}

.opt-deco--glow {
  top: 42%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(760px, 92vw);
  height: 340px;
  background: radial-gradient(ellipse, rgba(33, 21, 44, 0.55) 0%, transparent 72%);
  opacity: 0.85;
}

/* Shell */
.opt-shell {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 24px 20px;
  box-sizing: border-box;
}

/* Header */
.opt-header {
  text-align: center;
  width: 100%;
  margin-bottom: 22px;
}

.opt-logo {
  display: block;
  height: 56px;
  width: auto;
  margin: 0 auto 14px;
  opacity: 0;
  transform: translateY(-14px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.opt-logo.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.opt-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  margin-bottom: 16px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--opt-white);
  background: rgba(23, 16, 32, 0.55);
  border: 1px solid var(--opt-gold-border);
  border-radius: 999px;
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.55s ease 0.1s, transform 0.55s ease 0.1s, box-shadow 0.3s ease;
}

.opt-badge.is-visible {
  opacity: 1;
  transform: scale(1);
}

.opt-badge i {
  font-size: 0.72rem;
  color: var(--opt-gold);
}

.opt-badge-gold {
  color: var(--opt-gold-light);
}

.opt-title {
  margin: 0 0 10px;
  font-size: clamp(2rem, 4.2vw, 2.65rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease 0.15s, transform 0.6s ease 0.15s;
}

.opt-title.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.opt-title-white {
  color: var(--opt-white);
}

.opt-title-gold {
  background: linear-gradient(90deg, var(--opt-gold) 0%, var(--opt-gold-light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.opt-subtitle {
  margin: 0 auto;
  max-width: 560px;
  font-size: 0.9375rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--opt-muted);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.6s ease 0.22s, transform 0.6s ease 0.22s;
}

.opt-subtitle.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Cards row */
.opt-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  width: 100%;
  align-items: stretch;
}

.opt-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 22px 22px 20px;
  background: var(--opt-card-bg);
  border: 1px solid var(--opt-gold-border);
  border-radius: var(--opt-radius);
  box-shadow:
    0 14px 36px rgba(13, 7, 18, 0.42),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.opt-card--dvc {
  opacity: 0;
  transform: translateX(-24px);
  transition: opacity 0.65s ease 0.3s, transform 0.65s ease 0.3s, box-shadow 0.3s ease, border-color 0.3s ease;
}

.opt-card--mini {
  opacity: 0;
  transform: translateX(24px);
  transition: opacity 0.65s ease 0.42s, transform 0.65s ease 0.42s, box-shadow 0.3s ease, border-color 0.3s ease;
}

.opt-card--dvc.is-visible,
.opt-card--mini.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.opt-card.is-visible:hover {
  transform: translateY(-4px);
  border-color: rgba(168, 85, 247, 0.92);
  box-shadow:
    0 20px 44px rgba(13, 7, 18, 0.5),
    0 0 28px rgba(168, 85, 247, 0.1);
}

.opt-card--dvc.is-visible:hover,
.opt-card--mini.is-visible:hover {
  transform: translateY(-4px);
}

/* Card illustration */
.opt-card-illustration {
  position: absolute;
  bottom: 58px;
  right: 10px;
  width: 110px;
  height: 88px;
  opacity: 0.07;
  pointer-events: none;
}

.opt-card-illustration svg {
  width: 100%;
  height: 100%;
}

/* Card header */
.opt-card-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

.opt-card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1.5px solid var(--opt-gold-border);
  border-radius: 50%;
  background: rgba(13, 7, 18, 0.45);
  transition: box-shadow 0.3s ease;
}

.opt-card.is-visible:hover .opt-card-icon {
  box-shadow: 0 0 18px rgba(168, 85, 247, 0.28);
}

.opt-card-icon i {
  font-size: 1.35rem;
  color: var(--opt-gold);
}

.opt-card-title {
  margin: 0;
  font-size: clamp(1rem, 1.8vw, 1.12rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--opt-white);
}

.opt-card-divider {
  display: flex;
  align-items: center;
  margin-bottom: 14px;
}

.opt-card-divider::before,
.opt-card-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(168, 85, 247, 0.55));
}

.opt-card-divider::after {
  background: linear-gradient(90deg, rgba(168, 85, 247, 0.55), transparent);
}

.opt-card-divider span {
  width: 5px;
  height: 5px;
  margin: 0 8px;
  background: var(--opt-gold);
  transform: rotate(45deg);
  flex-shrink: 0;
}

.opt-card-desc {
  margin: 0 0 12px;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.94);
}

.opt-card-features {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  flex-grow: 1;
}

.opt-card-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 8px;
  font-size: 0.9rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.9);
}

.opt-check {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  border: 1px solid rgba(168, 85, 247, 0.6);
  border-radius: 50%;
  background: rgba(168, 85, 247, 0.12);
}

.opt-check i {
  font-size: 0.5rem;
  color: var(--opt-gold-light);
}

/* Buttons */
.opt-btn {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding: 12px 18px;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  border-radius: 14px;
  border: none;
  position: relative;
  z-index: 1;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.opt-btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
}

.opt-btn:hover .opt-btn-arrow {
  transform: translateX(4px);
}

.opt-btn-arrow {
  font-size: 0.8rem;
  transition: transform 0.3s ease;
}

.opt-btn--gold {
  color: var(--opt-navy);
  background: linear-gradient(180deg, var(--opt-gold-light) 0%, var(--opt-gold) 100%);
  box-shadow: 0 10px 26px rgba(168, 85, 247, 0.38);
}

.opt-btn--gold:hover {
  color: var(--opt-navy);
  box-shadow: 0 14px 32px rgba(168, 85, 247, 0.48);
}

.opt-btn--blue {
  color: var(--opt-white);
  background: linear-gradient(180deg, var(--dvc-deep-purple) 0%, var(--dvc-card-bg) 100%);
  box-shadow: 0 10px 26px rgba(33, 21, 44, 0.55);
}

.opt-btn--blue:hover {
  color: var(--opt-white);
  box-shadow: 0 14px 32px rgba(26, 74, 158, 0.48);
}

/* Subtle unified card floor glow */
.opt-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 10%;
  right: 10%;
  height: 44px;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(22px);
  opacity: 0.28;
  background: rgba(168, 85, 247, 0.35);
}

/* Tablet */
@media (max-width: 991.98px) {
  .opt-shell {
    padding: 24px 20px 22px;
  }

  .opt-cards {
    gap: 18px;
  }

  .opt-card {
    padding: 20px 18px 18px;
  }
}

/* Mobile */
@media (max-width: 767.98px) {
  .opt-shell {
    min-height: auto;
    padding: 28px 16px 24px;
    justify-content: flex-start;
  }

  .opt-logo {
    height: 48px;
  }

  .opt-cards {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .opt-card--dvc,
  .opt-card--mini {
    transform: translateY(20px);
  }

  .opt-card--dvc.is-visible,
  .opt-card--mini.is-visible {
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .opt-logo,
  .opt-badge,
  .opt-title,
  .opt-subtitle,
  .opt-card {
    opacity: 1;
    transform: none;
    transition: none;
  }
}