/* Chiperbox theme: secure-vault / data box */
:root {
  color-scheme: dark;
  --bg: #0b0907;
  --panel: rgba(20, 17, 12, 0.88);
  --panel-soft: rgba(245, 158, 11, 0.055);
  --border: rgba(245, 158, 11, 0.18);
  --border-strong: rgba(52, 211, 153, 0.26);
  --text: #fff7ed;
  --muted: #b6a99a;
  --cyan: #f59e0b;
  --cyan-soft: rgba(245, 158, 11, 0.14);
  --pink: #34d399;
  --pink-soft: rgba(52, 211, 153, 0.13);
  --green: #84cc16;
  --blue: #60a5fa;
  --yellow: #fcd34d;
  --violet: #c084fc;
}

html { scroll-behavior: smooth; }

body {
  position: relative;
  overflow-x: hidden;
  background:
    linear-gradient(rgba(245, 158, 11, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 158, 11, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 18% 10%, rgba(245, 158, 11, 0.18), transparent 26rem),
    radial-gradient(circle at 82% 6%, rgba(217, 70, 239, 0.16), transparent 25rem),
    radial-gradient(circle at 50% 100%, rgba(34, 197, 94, 0.10), transparent 35rem),
    linear-gradient(180deg, #0b0907 0%, #06111f 45%, #0b0907 100%);
  background-size: 42px 42px, 42px 42px, auto, auto, auto, auto;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    180deg,
    rgba(255,255,255,0.018) 0,
    rgba(255,255,255,0.018) 1px,
    transparent 1px,
    transparent 7px
  );
  mix-blend-mode: screen;
  opacity: .55;
  z-index: -1;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(135deg, rgba(245, 158, 11, 0.045) 0 12px, transparent 12px 24px),
    linear-gradient(45deg, rgba(52, 211, 153, 0.035) 0 10px, transparent 10px 22px);
  background-size: 34px 34px, 48px 48px;
  mask-image: radial-gradient(circle at 50% 0%, black, transparent 72%);
}

.glass,
.hero-stat,
.info-card,
.word-card,
.empty-state,
.input-base,
.btn-primary,
.btn-secondary,
.details-tag,
.formula-box,
.nav-link,
.operation-chip {
  border-radius: 0.95rem !important;
}

.hero-panel {
  border-radius: 1.25rem !important;
}


.glass {
  background: linear-gradient(180deg, rgba(3, 12, 28, 0.92), rgba(4, 11, 24, 0.78));
  border: 1px solid var(--border);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255,255,255,0.035);
  backdrop-filter: blur(18px);
}

.hero-panel {
  position: relative;
  overflow: hidden;
}

.hero-panel::before {
  content: "CRYPTOMATRIX";
  position: absolute;
  right: -1.4rem;
  top: 1.2rem;
  font-size: clamp(2.8rem, 9vw, 7.8rem);
  font-weight: 900;
  letter-spacing: .18em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(34, 211, 238, 0.12);
  pointer-events: none;
}

.hero-panel::after {
  content: "";
  position: absolute;
  inset: auto -8rem -10rem auto;
  width: 22rem;
  height: 22rem;
  background: radial-gradient(circle, rgba(217, 70, 239, 0.18), transparent 68%);
  pointer-events: none;
}

.hero-stat,
.info-card,
.word-card {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(34, 211, 238, 0.055), rgba(255, 255, 255, 0.018));
  border-radius: 0.85rem;
}

.hero-stat {
  padding: 0.95rem 1rem;
}

.hero-stat-label,
.info-card-label {
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #6ee7f7;
}

.hero-stat-value,
.info-card-value {
  margin-top: 0.35rem;
  color: white;
  font-weight: 800;
  font-size: 0.95rem;
}

.info-card {
  padding: 0.95rem 1rem;
}

.feature-item {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
}

.feature-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 999px;
  margin-top: 0.48rem;
  flex: 0 0 auto;
  background: linear-gradient(135deg, var(--cyan), var(--pink));
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.12), 0 0 18px rgba(217, 70, 239, 0.26);
}

.input-base {
  width: 100%;
  border-radius: 0.85rem;
  border: 1px solid rgba(103, 232, 249, 0.20);
  background: rgba(2, 6, 23, 0.86);
  color: var(--text);
  padding: 0.9rem 1rem;
  outline: none;
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease, transform .18s ease;
}

.input-base::placeholder {
  color: #64748b;
}

.input-base:focus {
  border-color: rgba(34, 211, 238, 0.68);
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.10), 0 0 34px rgba(217, 70, 239, 0.08);
  background: rgba(3, 12, 28, 0.98);
}

.btn-primary,
.btn-secondary {
  border-radius: 0.85rem;
  padding: 0.82rem 1.15rem;
  font-size: 0.875rem;
  font-weight: 950;
  transition: transform .12s ease, background .18s ease, border-color .18s ease, color .18s ease, box-shadow .18s ease;
}

.btn-primary:hover,
.btn-secondary:hover { transform: translateY(-1px); }

.btn-primary {
  background: linear-gradient(135deg, #f59e0b 0%, #34d399 100%);
  color: #0b0907;
  box-shadow: 0 14px 32px rgba(245, 158, 11, 0.18), 0 10px 30px rgba(217, 70, 239, 0.14);
}

.btn-primary:hover {
  box-shadow: 0 18px 40px rgba(34, 211, 238, 0.28), 0 14px 32px rgba(217, 70, 239, 0.22);
}

.btn-secondary {
  border: 1px solid var(--border);
  color: #fff7ed;
  background: rgba(15, 23, 42, 0.56);
}

.btn-secondary:hover {
  background: rgba(245, 158, 11, 0.08);
  border-color: rgba(217, 70, 239, 0.38);
}

.nav-counter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.85rem;
  border: 1px solid rgba(34, 211, 238, 0.24);
  background: rgba(34, 211, 238, 0.09);
  color: #fde68a;
  font-size: 0.78rem;
  font-weight: 900;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.legend-swatch {
  width: 0.95rem;
  height: 0.95rem;
  border-radius: 0.28rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.legend-subbytes { background: rgba(56, 189, 248, 0.42); }
.legend-shiftrows { background: rgba(34, 197, 94, 0.40); }
.legend-mixcolumns { background: rgba(250, 204, 21, 0.42); }
.legend-key { background: rgba(217, 70, 239, 0.40); }
.legend-output { background: rgba(34, 211, 238, 0.40); }

.empty-state {
  border: 1px dashed rgba(34, 211, 238, 0.34);
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.055), rgba(217, 70, 239, 0.045));
  border-radius: 1.2rem;
  padding: 2rem;
}

.details-note {
  font-size: 0.82rem;
  line-height: 1.65;
  color: #9fb6c5;
}

.details-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border-radius: 0.8rem;
  border: 1px solid rgba(34, 211, 238, 0.24);
  background: rgba(34, 211, 238, 0.09);
  color: #fde68a;
  padding: 0.42rem 0.75rem;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

details > summary { list-style: none; }
details > summary::-webkit-details-marker { display: none; }
details[open] .chevron { transform: rotate(90deg); }
.chevron { transition: transform .18s ease; }

.box-table,
.const-table {
  border-collapse: separate;
  border-spacing: 0.24rem;
  table-layout: fixed;
  width: 100%;
}

.box-wrap,
.const-wrap {
  overflow-x: auto;
  border-radius: 0.85rem;
}

.box-table { min-width: 17rem; }

.box-table th,
.box-table td,
.const-table th,
.const-table td {
  text-align: center;
  border-radius: 0.38rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  border: 1px solid rgba(103, 232, 249, 0.10);
}

.box-table th,
.box-table td {
  padding: 0.55rem 0.45rem;
  font-size: 0.86rem;
  line-height: 1.1rem;
}

.box-table th,
.const-table th {
  color: #fff7ed;
  background: rgba(34, 211, 238, 0.07);
  font-weight: 950;
}

.const-table { min-width: 46rem; }

.const-table th,
.const-table td {
  padding: 0.45rem 0.35rem;
  font-size: 0.78rem;
}

.cell-base { background: rgba(15, 23, 42, 0.56); color: #ecfeff; }
.cell-subbytes { background: rgba(56, 189, 248, 0.16); color: #e0f2fe; border-color: rgba(56, 189, 248, 0.42) !important; }
.cell-shiftrows { background: rgba(34, 197, 94, 0.15); color: #dcfce7; border-color: rgba(34, 197, 94, 0.36) !important; }
.cell-mixcolumns { background: rgba(250, 204, 21, 0.16); color: #fef9c3; border-color: rgba(250, 204, 21, 0.38) !important; }
.cell-key { background: rgba(217, 70, 239, 0.15); color: #fae8ff; border-color: rgba(217, 70, 239, 0.38) !important; }
.cell-output { background: rgba(245, 158, 11, 0.15); color: #ecfeff; border-color: rgba(245, 158, 11, 0.42) !important; }
.cell-diff { box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.34), 0 0 18px rgba(245, 158, 11, 0.10); }

.operation-chip {
  display: inline-flex;
  align-items: center;
  border-radius: 0.75rem;
  padding: 0.28rem 0.62rem;
  border: 1px solid rgba(245, 158, 11, 0.22);
  background: rgba(245, 158, 11, 0.08);
  color: #fde68a;
  font-size: 0.72rem;
  font-weight: 950;
  letter-spacing: 0.05em;
}

.formula-box {
  border-radius: 0.85rem;
  border: 1px solid rgba(103, 232, 249, 0.12);
  background: rgba(2, 6, 23, 0.56);
  padding: 0.82rem;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.78rem;
  line-height: 1.5;
  color: #d9f5ff;
}

.nav-link {
  display: block;
  border-radius: 0.75rem;
  border: 1px solid transparent;
  padding: 0.7rem 0.8rem;
  color: #9fb6c5;
  transition: background .18s ease, border-color .18s ease, color .18s ease, transform .18s ease;
}

.nav-link:hover {
  background: rgba(34, 211, 238, 0.055);
  border-color: rgba(34, 211, 238, 0.14);
  color: #ffffff;
}

.nav-link.active {
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.12), rgba(217, 70, 239, 0.08));
  border-color: rgba(34, 211, 238, 0.24);
  color: #fff7ed;
  transform: translateX(2px);
}

.word-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(8.4rem, 1fr));
  gap: 0.75rem;
}

.word-card {
  padding: 0.8rem 0.9rem;
  font-size: 0.76rem;
  line-height: 1.55;
  color: #d9f5ff;
}

.word-card b {
  color: white;
  display: inline-block;
  margin-bottom: 0.2rem;
}

.word-card span {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

.hide-detail .detail-only {
  display: none !important;
}

@media (max-width: 640px) {
  .empty-state { padding: 1.4rem; }
}


/* Vault-specific refinements */
.glass {
  border-width: 1px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.42), inset 0 1px 0 rgba(255, 247, 237, 0.035);
}

.hero-stat,
.info-card,
.word-card {
  box-shadow: inset 0 0 0 1px rgba(245, 158, 11, 0.04);
}

.btn-primary {
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.box-table th,
.box-table td,
.const-table th,
.const-table td {
  border-radius: 0.35rem;
}

.nav-counter,
.details-tag,
.operation-chip {
  box-shadow: inset 0 0 0 1px rgba(245, 158, 11, 0.08);
}