:root {
  color-scheme: light;
  --suite-bg: #f4f7fb;
  --suite-bg-soft: #eef3f9;
  --suite-surface: #ffffff;
  --suite-surface-2: #f8fafc;
  --suite-surface-3: #eef2ff;
  --suite-text: #172033;
  --suite-text-strong: #0f172a;
  --suite-muted: #667085;
  --suite-border: #dce4ef;
  --suite-border-strong: #c8d4e4;
  --suite-primary: #4f46e5;
  --suite-primary-strong: #3730a3;
  --suite-primary-soft: #eef2ff;
  --suite-secondary: #0891b2;
  --suite-secondary-soft: #ecfeff;
  --suite-success: #059669;
  --suite-warning: #d97706;
  --suite-danger: #dc2626;
  --suite-code-bg: #111827;
  --suite-code-text: #e0e7ff;
  --suite-shadow: 0 18px 52px rgba(37, 50, 77, 0.10);
  --suite-shadow-sm: 0 8px 24px rgba(37, 50, 77, 0.08);
  --suite-radius: 22px;
  --suite-radius-sm: 14px;
  --suite-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --suite-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Aliases used by the four original module stylesheets. */
  --bg: var(--suite-bg);
  --bg-2: var(--suite-bg-soft);
  --bg-soft: var(--suite-bg-soft);
  --surface: var(--suite-surface);
  --surface-soft: var(--suite-surface-2);
  --card: var(--suite-surface);
  --card-solid: var(--suite-surface);
  --card-2: var(--suite-surface-2);
  --panel: var(--suite-surface);
  --panel-soft: var(--suite-surface-2);
  --panel-solid: var(--suite-surface);
  --line: var(--suite-border);
  --line-strong: var(--suite-border-strong);
  --border: var(--suite-border);
  --border-strong: var(--suite-border-strong);
  --text: var(--suite-text);
  --muted: var(--suite-muted);
  --primary: var(--suite-primary);
  --primary-dark: var(--suite-primary-strong);
  --primary-2: var(--suite-secondary);
  --secondary: var(--suite-secondary);
  --accent: var(--suite-secondary);
  --accent-2: var(--suite-primary);
  --danger: var(--suite-danger);
  --success: var(--suite-success);
  --warning: var(--suite-warning);
  --gold: var(--suite-primary);
  --gold-soft: var(--suite-primary-soft);
  --indigo: var(--suite-primary);
  --indigo-soft: var(--suite-primary-soft);
  --emerald: var(--suite-success);
  --blue: var(--suite-secondary);
  --yellow: var(--suite-warning);
  --violet: var(--suite-primary);
  --shadow: var(--suite-shadow);
  --sans: var(--suite-sans);
  --mono: var(--suite-mono);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --suite-bg: #080d18;
  --suite-bg-soft: #0d1422;
  --suite-surface: #111a2b;
  --suite-surface-2: #151f32;
  --suite-surface-3: #1b2650;
  --suite-text: #e8eef9;
  --suite-text-strong: #f8fafc;
  --suite-muted: #9aa8bd;
  --suite-border: #26344a;
  --suite-border-strong: #374966;
  --suite-primary: #818cf8;
  --suite-primary-strong: #a5b4fc;
  --suite-primary-soft: #202a50;
  --suite-secondary: #22d3ee;
  --suite-secondary-soft: #123342;
  --suite-success: #34d399;
  --suite-warning: #fbbf24;
  --suite-danger: #fb7185;
  --suite-code-bg: #050914;
  --suite-code-text: #dbeafe;
  --suite-shadow: 0 22px 65px rgba(0, 0, 0, 0.32);
  --suite-shadow-sm: 0 10px 30px rgba(0, 0, 0, 0.24);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--suite-sans) !important;
  color: var(--suite-text) !important;
  background:
    radial-gradient(circle at 8% 0%, color-mix(in srgb, var(--suite-primary) 12%, transparent), transparent 28rem),
    radial-gradient(circle at 96% 8%, color-mix(in srgb, var(--suite-secondary) 10%, transparent), transparent 28rem),
    var(--suite-bg) !important;
  transition: background-color .2s ease, color .2s ease;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .35;
  background-image:
    linear-gradient(color-mix(in srgb, var(--suite-border) 35%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--suite-border) 35%, transparent) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(to bottom, #000 0%, transparent 88%);
}

a { color: inherit; }
button, input, select, textarea { font: inherit; }
code, pre, .mono { font-family: var(--suite-mono) !important; }

/* Shared suite navigation */
.suite-topbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid color-mix(in srgb, var(--suite-border) 88%, transparent);
  background: color-mix(in srgb, var(--suite-bg) 84%, transparent);
  backdrop-filter: blur(18px);
}
.suite-topbar__inner {
  width: min(1240px, calc(100% - 30px));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 18px;
}
.suite-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  flex: 0 0 auto;
}
.suite-brand__mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  color: #fff;
  background: linear-gradient(135deg, var(--suite-primary), var(--suite-secondary));
  box-shadow: 0 10px 26px color-mix(in srgb, var(--suite-primary) 28%, transparent);
  font-weight: 950;
}
.suite-brand__copy { display: grid; line-height: 1.1; }
.suite-brand__copy strong { color: var(--suite-text-strong); font-size: .96rem; }
.suite-brand__copy small { margin-top: 4px; color: var(--suite-muted); font-size: .7rem; }
.suite-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.suite-nav a {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  padding: 0 11px;
  border-radius: 10px;
  color: var(--suite-muted);
  text-decoration: none;
  font-size: .82rem;
  font-weight: 800;
  transition: .16s ease;
}
.suite-nav a:hover,
.suite-nav a[aria-current="page"] {
  color: var(--suite-primary-strong);
  background: var(--suite-primary-soft);
}
.suite-theme-toggle {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid var(--suite-border);
  border-radius: 13px;
  color: var(--suite-text-strong);
  background: var(--suite-surface);
  box-shadow: var(--suite-shadow-sm);
  cursor: pointer;
}
.suite-theme-toggle:hover { border-color: var(--suite-primary); }
.suite-theme-toggle__sun,
.suite-theme-toggle__moon { font-size: 1rem; line-height: 1; }
html[data-theme="dark"] .suite-theme-toggle__sun { display: inline; }
html[data-theme="dark"] .suite-theme-toggle__moon { display: none; }
html:not([data-theme="dark"]) .suite-theme-toggle__sun { display: none; }
html:not([data-theme="dark"]) .suite-theme-toggle__moon { display: inline; }

/* Reusable app chrome */
.suite-page-heading {
  width: min(1240px, calc(100% - 30px));
  margin: 28px auto 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}
.suite-page-heading__eyebrow {
  margin: 0 0 8px;
  color: var(--suite-primary);
  font-size: .74rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .14em;
}
.suite-page-heading h1 {
  margin: 0;
  color: var(--suite-text-strong);
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1;
  letter-spacing: -.055em;
}
.suite-page-heading p {
  max-width: 760px;
  margin: 14px 0 0;
  color: var(--suite-muted);
  line-height: 1.7;
}
.suite-specs {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  max-width: 390px;
}
.suite-specs span {
  padding: 8px 11px;
  border: 1px solid var(--suite-border);
  border-radius: 999px;
  color: var(--suite-muted);
  background: var(--suite-surface);
  font-size: .74rem;
  font-weight: 800;
}

/* Generic component normalization */
.card,
.glass,
.hero-panel,
.hero-inner,
.input-card,
.result-card,
.reference-card,
.steps-toolbar,
.step-box,
.round-card,
.step-block,
details.step-card,
.algorithm-card,
.guide-panel,
.test-table-wrap,
.info-card,
.hero-stat,
.word-card,
.empty-state {
  color: var(--suite-text) !important;
  border-color: var(--suite-border) !important;
  background: var(--suite-surface) !important;
  box-shadow: var(--suite-shadow) !important;
}

.hero,
.hero::before,
.hero::after,
.hero-inner::after,
.hero-panel::after,
.card::before {
  border-color: var(--suite-border) !important;
}

h1, h2, h3, h4, h5, h6,
.hero h1,
.section-head h2,
.section-heading h2,
.steps-toolbar h2,
.algorithm-card h3 {
  color: var(--suite-text-strong) !important;
}

p, small, .muted,
.section-head p,
.section-heading > p,
.hero__subtitle,
.details-note,
.step-description,
.mini-note,
.input-counter,
.status-line,
.hero-stat-label,
.info-card-label {
  color: var(--suite-muted) !important;
}

input[type="text"], input:not([type]), textarea, select,
.input-base {
  color: var(--suite-text-strong) !important;
  border-color: var(--suite-border) !important;
  background: var(--suite-surface-2) !important;
}
input::placeholder, textarea::placeholder { color: color-mix(in srgb, var(--suite-muted) 70%, transparent) !important; }
input:focus, textarea:focus, select:focus, .input-base:focus {
  border-color: var(--suite-primary) !important;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--suite-primary) 14%, transparent) !important;
}

.primary-btn, .primary-link, .btn.primary, .button--primary, .btn-primary, .button-primary,
.card-link, .nav-cta, .toggle {
  color: #fff !important;
  border-color: transparent !important;
  background: linear-gradient(135deg, var(--suite-primary), var(--suite-secondary)) !important;
  box-shadow: 0 12px 28px color-mix(in srgb, var(--suite-primary) 20%, transparent) !important;
}
.soft-btn, .secondary-btn, .ghost-btn, .btn.secondary, .btn.ghost,
.button--secondary, .button--example, .btn-secondary, .button-secondary,
.icon-button, .copy-button {
  color: var(--suite-primary-strong) !important;
  border-color: var(--suite-border) !important;
  background: var(--suite-surface-2) !important;
}
.danger-btn { color: var(--suite-danger) !important; border-color: color-mix(in srgb, var(--suite-danger) 35%, var(--suite-border)) !important; background: color-mix(in srgb, var(--suite-danger) 8%, var(--suite-surface)) !important; }

.badge, .eyebrow, .section-kicker, .details-tag, .operation-chip,
.detected, .pill, .table-badge, .status-badge, .example-chip,
.example-panel__eyebrow, .algo-code {
  color: var(--suite-primary-strong) !important;
}
.section-number, .step-number, .brand-icon, .brand-mark,
.guide-list > li > span, .algo-icon {
  color: #fff !important;
  border-color: transparent !important;
  background: linear-gradient(135deg, var(--suite-primary), var(--suite-secondary)) !important;
}

code, pre, .result-value, .code-line {
  color: var(--suite-code-text) !important;
}
.sample-stack code, .preview-row code, .result-value, .code-line,
.formula-box, .verify-box, .sample-mini, .console-output,
.word-card, .kv, .sbox-card, .mini-card, .matrix-panel,
.nibble-transform, .gf-detail {
  border-color: var(--suite-border) !important;
  background: var(--suite-surface-2) !important;
}
.result-value, .final-note, .result-panel, .result-summary {
  border-color: color-mix(in srgb, var(--suite-success) 34%, var(--suite-border)) !important;
  background: color-mix(in srgb, var(--suite-success) 8%, var(--suite-surface)) !important;
}

.bit, .mini-bit, .bit-char, .bit-cell, .output-cell, .nibble-cell,
.matrix-table td, .const-table td {
  color: var(--suite-text-strong) !important;
  border-color: var(--suite-border) !important;
  background: var(--suite-surface-2) !important;
}

th, .calc-table th, .word-table th, .reference-table th, .comparison-table th,
.matrix-table th, .const-table th {
  color: var(--suite-text-strong) !important;
  border-color: var(--suite-border) !important;
  background: var(--suite-primary-soft) !important;
}
td, .calc-table td, .word-table td, .reference-table td, .comparison-table td {
  color: var(--suite-text) !important;
  border-color: var(--suite-border) !important;
}
.table-wrap, .table-scroll, .test-table-wrap { border-color: var(--suite-border) !important; }

.error, .error-box, .error-message { color: var(--suite-danger) !important; }
.error, .error-box { border-color: color-mix(in srgb, var(--suite-danger) 38%, var(--suite-border)) !important; background: color-mix(in srgb, var(--suite-danger) 9%, var(--suite-surface)) !important; }
.status-line.ok, .verify-box.ok { color: var(--suite-success) !important; }
.status-line.fail, .verify-box.fail { color: var(--suite-danger) !important; }

/* Module spacing and old back-link cleanup */
.suite-back-link { display: none !important; }
body.module-page > .hero { padding-top: 34px !important; }
body.module-page .container,
body.module-page .page { width: min(1180px, calc(100% - 30px)); }
body.module-des .hero,
body.module-sdes .hero,
body.module-saes .hero {
  color: var(--suite-text) !important;
  background: transparent !important;
  border-bottom: 0 !important;
}
body.module-des .hero-grid,
body.module-des .nav,
body.module-sdes .hero-inner,
body.module-saes .hero__inner {
  width: min(1180px, calc(100% - 30px));
  max-width: 1180px;
  margin-inline: auto;
}
body.module-des .nav { margin-bottom: 28px; }
body.module-des .hero-panel,
body.module-sdes .hero-inner,
body.module-saes .hero__inner {
  border: 1px solid var(--suite-border) !important;
  border-radius: var(--suite-radius) !important;
  background: var(--suite-surface) !important;
  box-shadow: var(--suite-shadow) !important;
}
body.module-saes .hero__inner { padding: 28px; align-items: center; }
body.module-saes .hero { padding: 30px 0 18px; }
body.module-sdes .hero { padding: 30px 0 16px; }
body.module-sdes .hero-inner { padding: 28px; }
body.module-des .hero { padding: 30px 0 20px; }
body.module-des .hero-copy h1,
body.module-sdes .hero h1,
body.module-saes .hero h1 { font-size: clamp(2.25rem, 6vw, 4.5rem) !important; }
body.module-des .brand-icon { width: 48px; height: 48px; border-radius: 14px; }
body.module-des .nav-pills span,
body.module-saes .hero__badge span {
  color: var(--suite-muted) !important;
  border-color: var(--suite-border) !important;
  background: var(--suite-surface-2) !important;
}

/* AES Tailwind color normalization */
body.module-aes { color: var(--suite-text) !important; }
body.module-aes .glass { background: var(--suite-surface) !important; }
body.module-aes .text-white,
body.module-aes .text-slate-100,
body.module-aes .text-slate-200,
body.module-aes .text-slate-300,
body.module-aes .text-amber-100,
body.module-aes .text-amber-200,
body.module-aes .text-violet-300,
body.module-aes .text-emerald-100,
body.module-aes .text-rose-100 { color: var(--suite-text-strong) !important; }
body.module-aes .text-slate-400 { color: var(--suite-muted) !important; }
body.module-aes .border-white\/10,
body.module-aes .border-amber-300\/20,
body.module-aes .border-amber-300\/35,
body.module-aes .border-emerald-400\/35,
body.module-aes .border-rose-400\/35 { border-color: var(--suite-border) !important; }
body.module-aes .bg-white\/5,
body.module-aes .bg-white\/\[0\.03\],
body.module-aes .bg-white\/\[0\.04\],
body.module-aes .bg-amber-300\/10,
body.module-aes .bg-emerald-400\/10,
body.module-aes .bg-rose-400\/10 { background: var(--suite-surface-2) !important; }
body.module-aes .feature-dot { background: linear-gradient(135deg, var(--suite-primary), var(--suite-secondary)) !important; }
body.module-aes .cell-subbytes { background: color-mix(in srgb, var(--suite-primary) 15%, var(--suite-surface)) !important; }
body.module-aes .cell-shiftrows { background: color-mix(in srgb, var(--suite-secondary) 14%, var(--suite-surface)) !important; }
body.module-aes .cell-mixcolumns { background: color-mix(in srgb, var(--suite-warning) 13%, var(--suite-surface)) !important; }
body.module-aes .cell-key { background: color-mix(in srgb, var(--suite-primary) 10%, var(--suite-surface)) !important; }
body.module-aes .cell-output { background: color-mix(in srgb, var(--suite-success) 12%, var(--suite-surface)) !important; }

/* Landing page helpers */
body.landing-page .site-header { display: none; }
body.landing-page .hero { padding-top: 72px; }
body.landing-page .algorithm-card::before { background: var(--suite-primary) !important; }
body.landing-page .algorithm-card { min-height: 485px; }
body.landing-page .card-link { margin-top: 16px; }
body.landing-page .test-table-wrap { background: var(--suite-surface) !important; }
body.landing-page .test-table th { color: var(--suite-text-strong) !important; background: var(--suite-primary-soft) !important; }
body.landing-page .test-table td { color: var(--suite-text) !important; }
body.landing-page .console-top,
body.landing-page .flow-item,
body.landing-page .console-output { border-color: var(--suite-border) !important; background: var(--suite-surface-2) !important; }
body.landing-page .hero-console { background: var(--suite-surface) !important; }
body.landing-page .button-secondary { color: var(--suite-primary-strong) !important; }

/* Footer */
.suite-footer {
  width: min(1240px, calc(100% - 30px));
  margin: 30px auto 0;
  padding: 26px 0 38px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--suite-border);
  color: var(--suite-muted);
  font-size: .8rem;
}

@media (max-width: 920px) {
  .suite-nav { display: none; }
  .suite-theme-toggle { margin-left: auto; }
  .suite-page-heading { flex-direction: column; }
  .suite-specs { justify-content: flex-start; max-width: none; }
}
@media (max-width: 680px) {
  .suite-topbar__inner { width: min(100% - 20px, 1240px); }
  .suite-brand__copy small { display: none; }
  .suite-page-heading { width: min(100% - 24px, 1240px); }
  .suite-footer { width: min(100% - 24px, 1240px); flex-direction: column; }
  body.module-des .hero-grid,
  body.module-des .nav,
  body.module-sdes .hero-inner,
  body.module-saes .hero__inner { width: min(100% - 24px, 1180px); }
}

section[id], details[id] { scroll-margin-top: 92px; }
body.module-aes aside { top: 5.25rem !important; }