:root {
  --cyd-red: #cb2f2f;
  --cyd-red-dark: #992222;
  --cyd-blue: #243244;
  --cyd-ink: #23303f;
  --cyd-muted: #657182;
  --cyd-paper: #f8f3ec;
  --cyd-paper-strong: #fffdfa;
  --cyd-stroke: rgba(36, 50, 68, 0.12);
  --asset-accent-spreadsheet: #4e7c65;
  --asset-accent-pdf: #9c4c4c;
  --asset-accent-link: #396f99;
  --asset-accent-archive: #7f6a96;
  --asset-accent-generic: #68788d;
}

body {
  font-family: 'Source Sans 3', 'Segoe UI', sans-serif;
  color: var(--cyd-ink);
  background: linear-gradient(180deg, #fbf7f1 0%, var(--cyd-paper) 100%);
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(203, 47, 47, 0.035) 0, rgba(203, 47, 47, 0.035) 1px, transparent 1px, transparent 64px),
    linear-gradient(rgba(36, 50, 68, 0.02) 1px, transparent 1px);
  background-size: 64px 64px, 100% 64px;
  opacity: 0.55;
}

h1,
h2,
h3,
h4,
h5,
h6,
.login-panel-title,
.private-title,
.panel-foundation__title,
.letter-side h1 {
  font-family: 'Fraunces', Georgia, serif;
}

.btn-cyd {
  background-color: var(--cyd-red);
  border-color: var(--cyd-red);
  color: #fff;
  border-radius: 0.95rem;
  padding: 0.78rem 1.2rem;
  font-weight: 700;
}

.btn-cyd:hover,
.btn-cyd:focus {
  background-color: var(--cyd-red-dark);
  border-color: var(--cyd-red-dark);
  color: #fff;
}

.brand-logo,
.brand-logo--foundation {
  max-width: 190px;
  width: 100%;
  height: auto;
}

.login-stage-c,
.private-main,
.private-header {
  position: relative;
  z-index: 1;
}

.login-letter {
  border-radius: 2rem;
  background: rgba(255, 253, 250, 0.92);
  box-shadow: 0 24px 60px rgba(36, 50, 68, 0.12);
}

.letter-side {
  background: linear-gradient(180deg, var(--cyd-red) 0%, #b82f2f 100%);
  color: #fff;
  padding: 2rem;
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

.letter-kicker,
.login-panel-label,
.private-kicker,
.panel-foundation__kicker,
.private-user-label,
.letter-tag,
.letter-year {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.76rem;
  font-weight: 700;
}

.letter-kicker,
.letter-tag,
.letter-year {
  color: rgba(255,255,255,0.82);
}

.letter-side h1 {
  font-size: clamp(2.5rem, 4vw, 4.2rem);
  line-height: 1;
  margin: 1.2rem 0 1rem;
}

.letter-text {
  color: rgba(255,255,255,0.84);
  font-size: 1.04rem;
  line-height: 1.7;
  margin-bottom: 1.75rem;
}

.letter-points li {
  position: relative;
  padding-left: 1.1rem;
  margin-bottom: 0.75rem;
  color: rgba(255,255,255,0.9);
}

.letter-points li::before {
  content: '—';
  position: absolute;
  left: 0;
}

.letter-main {
  padding: 2rem;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.letter-main__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.letter-tag {
  color: var(--cyd-red);
}

.letter-year {
  color: var(--cyd-muted);
}

.login-card {
  background: #fff;
  border-radius: 1.5rem;
  border: 1px solid rgba(36, 50, 68, 0.08) !important;
}

.login-panel-title {
  font-size: 2.25rem;
  margin-bottom: 0.55rem;
}

.login-panel-text {
  color: var(--cyd-muted);
  margin-bottom: 1.4rem;
}

.login-panel-label,
.panel-foundation__kicker {
  color: var(--cyd-red);
}

.login-form .form-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyd-blue);
}

.login-form .form-control {
  min-height: 3.2rem;
  border-radius: 0.95rem;
  border: 1px solid rgba(36, 50, 68, 0.14);
}

.login-form .form-control:focus {
  border-color: rgba(203, 47, 47, 0.4);
  box-shadow: 0 0 0 0.22rem rgba(203, 47, 47, 0.12);
}

.private-header--foundation {
  padding: 1.4rem 0 1.2rem;
}

.private-header-inner--foundation {
  background: rgba(255, 253, 250, 0.96);
  border: 1px solid rgba(36, 50, 68, 0.08);
  border-top: 5px solid var(--cyd-red);
  border-radius: 1.65rem;
  padding: 1.35rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  box-shadow: 0 18px 44px rgba(36, 50, 68, 0.08);
}

.private-brand-block,
.private-user-block--foundation {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.private-header-logo--foundation {
  height: 2.9rem;
  width: auto;
}

.private-kicker,
.private-user-label {
  color: var(--cyd-muted);
  margin-bottom: 0.3rem;
}

.private-title {
  font-size: clamp(2rem, 3vw, 3.1rem);
  line-height: 1.02;
  margin: 0;
}

.private-user-copy strong {
  display: block;
  font-size: 1rem;
}

.panel-foundation {
  background: rgba(255, 253, 250, 0.94);
  border: 1px solid rgba(36, 50, 68, 0.08);
  border-radius: 1.65rem;
  box-shadow: 0 18px 44px rgba(36, 50, 68, 0.08);
  overflow: hidden;
}

.panel-foundation__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 320px);
  gap: 1rem;
  padding: 1.6rem;
  border-bottom: 1px solid var(--cyd-stroke);
}

.panel-foundation__title {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  margin: 0.25rem 0 0;
}

.panel-foundation__intro {
  margin: 0;
  color: var(--cyd-muted);
  line-height: 1.65;
}

.panel-foundation__body {
  padding: 1.4rem 1.6rem 1.6rem;
}

.nav-tabs {
  border-bottom: none;
  gap: 0.65rem;
}

.nav-tabs .nav-link {
  border: 1px solid rgba(36, 50, 68, 0.1);
  border-radius: 999px;
  color: var(--cyd-blue);
  padding: 0.72rem 1rem;
  font-weight: 700;
  background: rgba(255,255,255,0.85);
}

.nav-tabs .nav-link.active {
  background: var(--cyd-red);
  color: #fff;
  border-color: var(--cyd-red);
}

.asset-card {
  border: 1px solid var(--asset-border, rgba(36, 50, 68, 0.12));
  border-left: 5px solid var(--asset-accent, var(--asset-accent-generic));
  background: var(--asset-bg, #fffdfa);
  border-radius: 1.35rem;
  overflow: hidden;
}

.asset-card .card-body {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.98), rgba(250, 245, 239, 0.96));
  padding: 1.18rem 1.24rem;
}

.asset-row {
  display: flex;
  align-items: center;
  gap: 0.95rem;
}

.asset-copy {
  display: flex;
  flex-direction: column;
  gap: 0.33rem;
}

.asset-icon {
  width: 2.9rem;
  height: 2.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.95rem;
  background: rgba(255,255,255,0.92);
  color: var(--asset-accent, var(--asset-accent-generic));
  box-shadow: inset 0 0 0 1px rgba(36, 50, 68, 0.08);
  flex-shrink: 0;
}

.asset-icon svg {
  width: 1.3rem;
  height: 1.3rem;
  fill: currentColor;
}

.asset-type-badge {
  display: inline-flex;
  width: fit-content;
  padding: 0.24rem 0.62rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.84);
  color: var(--asset-accent, var(--asset-accent-generic));
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.asset-title {
  color: var(--cyd-blue);
  line-height: 1.3;
  font-size: 1rem;
}

.asset-type-spreadsheet {
  --asset-border: rgba(78, 124, 101, 0.18);
  --asset-bg: linear-gradient(135deg, rgba(244, 249, 246, 0.98), rgba(255, 255, 255, 0.98));
}

.asset-type-pdf {
  --asset-border: rgba(156, 76, 76, 0.18);
  --asset-bg: linear-gradient(135deg, rgba(251, 245, 245, 0.98), rgba(255, 255, 255, 0.98));
}

.asset-type-link {
  --asset-border: rgba(57, 111, 153, 0.18);
  --asset-bg: linear-gradient(135deg, rgba(244, 248, 252, 0.98), rgba(255, 255, 255, 0.98));
}

.asset-type-archive {
  --asset-border: rgba(127, 106, 150, 0.18);
  --asset-bg: linear-gradient(135deg, rgba(247, 244, 250, 0.98), rgba(255, 255, 255, 0.98));
}

.asset-type-generic-download {
  --asset-border: rgba(104, 120, 141, 0.18);
  --asset-bg: linear-gradient(135deg, rgba(246, 247, 249, 0.98), rgba(255, 255, 255, 0.98));
}

.alert {
  border-radius: 1rem;
  border: none;
}

@media (max-width: 991.98px) {
  .letter-side,
  .letter-main {
    padding: 1.5rem;
  }

  .private-header-inner--foundation,
  .private-user-block--foundation,
  .panel-foundation__head {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 767.98px) {
  .letter-main__top {
    flex-direction: column;
    align-items: flex-start;
  }

  .asset-row {
    align-items: flex-start;
  }

  .asset-icon {
    width: 2.5rem;
    height: 2.5rem;
  }
}