:root {
  --ink: #17202a;
  --muted: #667085;
  --line: #e6e8ec;
  --surface: #f6f7f9;
  --accent: #0f766e;
}

body {
  color: var(--ink);
  background: var(--surface);
}

.app-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  background: #111827;
  color: #fff;
  padding: 24px;
  flex-direction: column;
  justify-content: space-between;
}

.brand {
  font-size: 1.25rem;
  font-weight: 700;
  display: grid;
  gap: 10px;
  align-items: start;
}

.brand img {
  width: 132px;
  max-width: 100%;
  height: auto;
  display: block;
}

.app-brand-mobile {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.app-brand-mobile img {
  width: 88px;
  height: auto;
  display: block;
}

.sidebar .nav-link {
  color: #d1d5db;
  border-radius: 8px;
  padding: 10px 12px;
}

.sidebar .nav-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.content {
  padding: 32px;
}

.public-content {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.public-content-wide {
  display: block;
}

.login-panel {
  width: min(100%, 440px);
}

.tier-info-page {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.tier-info-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 22px;
}

.tier-info-header h1 {
  font-size: 2.2rem;
  margin: 0;
}

.tier-info-logo {
  width: 150px;
  max-width: 48vw;
  height: auto;
  display: block;
  margin-bottom: 18px;
}

.tier-info-rules {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.tier-info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(240px, 1fr));
  gap: 14px;
}

.tier-info-card {
  min-height: 210px;
  opacity: 1;
  transform: none;
  scroll-snap-align: none;
}

.tier-info-card-logo {
  position: relative;
  margin-top: 18px;
}

.tier-info-card-logo img {
  width: 96px;
  max-width: 42%;
  height: auto;
  display: block;
  filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.14));
}

.login-card,
.reward-panel,
.metric,
.profile-panel,
.narrow-form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
}

.login-card h1,
.page-header h1 {
  font-size: 2rem;
  margin: 0;
}

.login-logo {
  width: 150px;
  max-width: 68%;
  height: auto;
  display: block;
  margin-bottom: 18px;
}

.eyebrow {
  color: var(--accent);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.flash-stack {
  margin-bottom: 18px;
}

.page-header {
  margin-bottom: 24px;
}

.narrow-form {
  max-width: 520px;
}

.status-strip {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 18px;
}

.admin-inline-form {
  display: grid;
  grid-template-columns: minmax(140px, 1fr) 110px auto;
  gap: 8px;
}

.admin-adjustment-form {
  display: grid;
  grid-template-columns: 88px 138px 92px minmax(130px, 1fr) auto;
  gap: 8px;
}

.admin-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.detail-form {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.tier-pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: .82rem;
  font-weight: 700;
  background: #eef2f7;
}

.tier-red { color: #b42318; background: #fee4e2; }
.tier-silver { color: #475467; background: #f2f4f7; }
.tier-gold { color: #93370d; background: #fef0c7; }
.tier-platinum { color: #155eef; background: #d1e9ff; }
.tier-diamond { color: #0e7490; background: #cffafe; }
.tier-black_diamond { color: #fff; background: #111827; }

.reward-panel {
  display: block;
  margin-bottom: 18px;
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0;
}

.credit-card-main,
.tier-mini-card {
  position: relative;
  overflow: hidden;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 18px 40px rgba(17, 24, 39, 0.16);
}

.credit-card-main {
  min-height: 300px;
  max-width: 520px;
  border-radius: 18px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transform-style: preserve-3d;
  transition: transform 220ms ease, box-shadow 220ms ease;
  backface-visibility: hidden;
}

.credit-card-main::before,
.tier-mini-card::before {
  content: "";
  position: absolute;
  inset: -40% auto auto 45%;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
}

.credit-card-main::after {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  background:
    linear-gradient(112deg, transparent 0%, transparent 26%, rgba(255, 255, 255, 0.52) 42%, transparent 58%, transparent 100%),
    radial-gradient(circle at 16% 18%, rgba(255, 255, 255, 0.34), transparent 30%);
  opacity: .68;
  transform: translateX(-78%) skewX(-10deg);
  animation: cardShine 3.2s ease-in-out infinite;
  pointer-events: none;
}

.credit-card-main:hover {
  transform: translateY(-7px) rotateX(4deg) rotateY(-4deg) scale(1.015);
  box-shadow: 0 32px 72px rgba(17, 24, 39, 0.34);
}

.credit-card-top,
.credit-card-bottom,
.tier-mini-card-top {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.reward-panel h2 {
  margin: 0;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 2.35rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0;
}

.credit-card-main .eyebrow {
  color: rgba(255, 255, 255, 0.78);
}

.credit-card-brand {
  position: relative;
  display: grid;
  justify-items: end;
  gap: 12px;
  flex: 0 0 auto;
}

.credit-card-logo {
  position: relative;
  width: 128px;
  max-width: 34vw;
  height: auto;
  display: block;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.16));
}

.card-chip {
  width: 44px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, #f8d477, #b88421);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35);
  flex: 0 0 auto;
  animation: chipGlow 3.8s ease-in-out infinite;
}

.small-chip {
  width: 30px;
  height: 22px;
  border-radius: 6px;
}

.credit-card-number {
  position: relative;
  font-size: 1.25rem;
  letter-spacing: 0;
  font-weight: 700;
}

.credit-card-holder {
  position: relative;
}

.credit-card-holder span {
  display: block;
  color: rgba(255, 255, 255, 0.68);
  font-size: .78rem;
  text-transform: uppercase;
  font-weight: 700;
}

.credit-card-holder strong {
  display: block;
  font-size: 1.05rem;
  overflow-wrap: anywhere;
}

.credit-card-bottom span {
  display: block;
  color: rgba(255, 255, 255, 0.68);
  font-size: .78rem;
  text-transform: uppercase;
  font-weight: 700;
}

.credit-card-bottom strong {
  display: block;
  font-size: 1.05rem;
}

.card-progress-block {
  position: relative;
}

.card-progress-block span,
.card-progress-block strong {
  color: rgba(255, 255, 255, 0.82);
}

.card-progress-block .progress {
  background: rgba(255, 255, 255, 0.24);
}

.card-progress-block .progress-bar {
  background: #fff;
}

.tier-card-red .credit-card-main,
.tier-card-red.tier-mini-card {
  background: linear-gradient(135deg, #b42318, #7a271a);
}

.tier-card-silver .credit-card-main,
.tier-card-silver.tier-mini-card {
  background:
    radial-gradient(circle at 18% 18%, rgba(255, 255, 255, 0.48), transparent 25%),
    linear-gradient(135deg, #f8fafc 0%, #d0d5dd 42%, #98a2b3 100%);
  color: #1f2937;
  border-color: rgba(255, 255, 255, 0.74);
}

.tier-card-silver .credit-card-main .eyebrow,
.tier-card-silver .credit-card-bottom span,
.tier-card-silver .credit-card-holder span,
.tier-card-silver .card-progress-block span,
.tier-card-silver .card-progress-block strong,
.tier-card-silver.tier-mini-card .tier-mini-card-status {
  color: rgba(31, 41, 55, 0.72);
}

.tier-card-silver .card-progress-block .progress,
.tier-card-silver.tier-mini-card .tier-mini-progress {
  background: rgba(31, 41, 55, 0.18);
}

.tier-card-silver .card-progress-block .progress-bar,
.tier-card-silver.tier-mini-card .tier-mini-progress > div {
  background: #1f2937;
}

.tier-card-gold .credit-card-main,
.tier-card-gold.tier-mini-card {
  background:
    radial-gradient(circle at 18% 18%, rgba(255, 255, 255, 0.35), transparent 24%),
    linear-gradient(135deg, #fff1a8 0%, #f7c948 28%, #d99a00 58%, #8f5f00 100%);
  color: #3f2a00;
  border-color: rgba(255, 235, 150, 0.72);
}

.tier-card-gold .credit-card-main .eyebrow,
.tier-card-gold .credit-card-bottom span,
.tier-card-gold .credit-card-holder span,
.tier-card-gold .card-progress-block span,
.tier-card-gold .card-progress-block strong,
.tier-card-gold.tier-mini-card .tier-mini-card-status {
  color: rgba(63, 42, 0, 0.72);
}

.tier-card-gold .card-progress-block .progress,
.tier-card-gold.tier-mini-card .tier-mini-progress {
  background: rgba(63, 42, 0, 0.18);
}

.tier-card-gold .card-progress-block .progress-bar,
.tier-card-gold.tier-mini-card .tier-mini-progress > div {
  background: #3f2a00;
}

.tier-card-platinum .credit-card-main,
.tier-card-platinum.tier-mini-card {
  background:
    radial-gradient(circle at 18% 18%, rgba(255, 255, 255, 0.16), transparent 25%),
    linear-gradient(135deg, #4b5563 0%, #1f2937 48%, #0b1220 100%);
}

.tier-card-diamond .credit-card-main,
.tier-card-diamond.tier-mini-card {
  background: linear-gradient(135deg, #0e7490, #155e75);
}

.tier-card-black_diamond .credit-card-main,
.tier-card-black_diamond.tier-mini-card {
  background: #000;
  border-color: rgba(255, 255, 255, 0.24);
}

.tier-carousel {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 260px;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 4px 2px 18px;
  margin-bottom: 18px;
}

.tier-mini-card {
  min-height: 150px;
  border-radius: 14px;
  padding: 16px;
  scroll-snap-align: center;
  opacity: .72;
  transform: scale(.96);
}

.tier-mini-card.is-current {
  opacity: 1;
  transform: scale(1);
  outline: 3px solid rgba(15, 118, 110, 0.22);
}

.tier-mini-card-top span {
  position: relative;
  font-weight: 800;
}

.tier-mini-card-range,
.tier-mini-card-status {
  position: relative;
}

.tier-mini-card-range {
  margin-top: 34px;
  font-weight: 700;
}

.tier-mini-card-status {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.72);
  font-size: .82rem;
}

.tier-mini-progress {
  position: relative;
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.24);
  overflow: hidden;
  margin-top: 14px;
}

.tier-mini-progress > div {
  height: 100%;
  border-radius: inherit;
  background: #fff;
}

@keyframes cardShine {
  0%, 30% {
    transform: translateX(-82%) skewX(-10deg);
    opacity: .22;
  }
  58% {
    transform: translateX(82%) skewX(-10deg);
    opacity: .78;
  }
  100% {
    transform: translateX(82%) skewX(-10deg);
    opacity: .2;
  }
}

@keyframes chipGlow {
  0%, 100% {
    filter: brightness(1);
  }
  50% {
    filter: brightness(1.32) drop-shadow(0 0 10px rgba(255, 224, 138, 0.55));
  }
}

@media (prefers-reduced-motion: reduce) {
  .credit-card-main,
  .card-chip {
    animation: none;
    transition: none;
  }

  .credit-card-main::after {
    animation: none;
    transform: none;
  }
}

.progress {
  height: 14px;
}

.progress-bar {
  background: var(--accent);
}

.flatpickr-input[readonly] {
  background: #fff;
}

.metric span {
  display: block;
  color: var(--muted);
}

.metric strong {
  font-size: 1.25rem;
}

.profile-panel h2 {
  font-size: 1.25rem;
  margin: 0 0 18px;
  overflow-wrap: anywhere;
}

.profile-inline-form {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) auto;
  gap: 10px;
  align-items: start;
}

.profile-inline-form.mt-3 {
  grid-template-columns: minmax(180px, 1fr) 140px auto;
}

@media (max-width: 991.98px) {
  .app-shell {
    display: block;
  }

  .content {
    padding: 20px;
  }

  .credit-card-main {
    min-height: 280px;
  }

  .admin-inline-form {
    grid-template-columns: 1fr;
  }

  .admin-adjustment-form {
    grid-template-columns: 1fr;
  }

  .profile-inline-form,
  .profile-inline-form.mt-3 {
    grid-template-columns: 1fr;
  }

  .admin-detail-grid {
    grid-template-columns: 1fr;
  }

  .tier-info-header {
    display: grid;
  }

  .tier-info-rules,
  .tier-info-grid {
    grid-template-columns: 1fr;
  }

  .tier-info-card {
    width: min(100%, 340px);
  }
}