@import url("https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@400;500;600;700&display=swap");

:root {
  --ink: #0f172a;
  --muted: #5b6472;
  --brand: #1f6feb;
  --brand-2: #22c55e;
  --surface: #ffffff;
  --surface-2: rgba(255, 255, 255, 0.84);
  --border: rgba(15, 23, 42, 0.12);
  --shadow: 0 20px 45px rgba(15, 23, 42, 0.18);
  --radius-lg: 20px;
  --radius-md: 16px;
}

* {
  box-sizing: border-box;
}

body {
  font-family: "Hind Siliguri", "Noto Sans Bengali", "SolaimanLipi", sans-serif;
  color: var(--ink);
  background-image:
    radial-gradient(circle at 10% 10%, rgba(34, 197, 94, 0.15), transparent 50%),
    radial-gradient(circle at 90% 20%, rgba(31, 111, 235, 0.18), transparent 55%),
    linear-gradient(120deg, #f9f4ee 0%, #eef6ff 55%, #f6efe6 100%);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

.auth-shell {
  max-width: 1160px;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}

.brand-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: conic-gradient(from 180deg, var(--brand), var(--brand-2));
  display: inline-block;
}

.promo-panel {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 36px;
  color: #ffffff;
  background: linear-gradient(160deg, #0f172a 0%, #1f2937 45%, #0b1f3a 100%);
  overflow: hidden;
  min-height: 100%;
}

.promo-panel::after {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle, rgba(34, 197, 94, 0.2), transparent 55%);
  opacity: 0.8;
}

.promo-panel > * {
  position: relative;
  z-index: 1;
}

.promo-title {
  font-size: clamp(2rem, 3vw, 2.8rem);
  line-height: 1.2;
  margin-bottom: 1rem;
  color: #ffffff;
  font-weight: 700;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.45);
}

.promo-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.badge-pill {
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.6);
  color: #ffffff;
  font-family: "Hind Siliguri", "Noto Sans Bengali", "SolaimanLipi", sans-serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.2px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.promo-card {
  margin-top: 1.5rem;
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.promo-stat {
  font-size: 1.7rem;
  font-weight: 600;
}

.promo-note {
  color: rgba(255, 255, 255, 0.7);
  margin-top: 0.6rem;
}

.auth-card {
  background: var(--surface-2);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  background: rgba(31, 111, 235, 0.1);
  color: var(--brand);
  font-size: 0.85rem;
  font-weight: 600;
}

.form-label {
  font-weight: 600;
}

.form-control {
  border-radius: 12px;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--border);
}

.form-control:focus {
  border-color: rgba(31, 111, 235, 0.45);
  box-shadow: 0 0 0 0.15rem rgba(31, 111, 235, 0.18);
}

.form-text {
  color: #334155;
  font-weight: 600;
  font-family: "Hind Siliguri", "Noto Sans Bengali", "SolaimanLipi", sans-serif;
  letter-spacing: 0.2px;
}

.btn-primary {
  background: linear-gradient(120deg, var(--brand), #2ec4b6);
  border: none;
  border-radius: 14px;
  padding: 0.8rem 1.4rem;
  font-weight: 600;
  box-shadow: 0 16px 30px rgba(31, 111, 235, 0.22);
}

.btn-outline-secondary {
  border-radius: 12px;
}

.error-box {
  display: none;
  border-radius: 12px;
  padding: 0.75rem 1rem;
  background: rgba(239, 68, 68, 0.1);
  color: #b91c1c;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.error-box.is-visible {
  display: block;
}

.password-toggle {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  padding: 0.4rem 0.7rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.text-muted {
  color: var(--muted) !important;
}

.form-text.text-muted {
  color: #0f172a !important;
  font-weight: 700;
  font-family: "Hind Siliguri", "Noto Sans Bengali", "SolaimanLipi", sans-serif;
  letter-spacing: 0.2px;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  animation: rise 0.6s ease forwards;
}

.delay-1 {
  animation-delay: 0.1s;
}

.delay-2 {
  animation-delay: 0.2s;
}

@keyframes rise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 991px) {
  .auth-shell {
    padding: 28px 16px 40px;
  }
}