/* ==========================================================
   DeadBolt — Static Site Stylesheet
   Look: occult · tenebrous · gothic · arcane
   ========================================================== */

/* --- Design Tokens ---------------------------------------- */
:root {
  /* Palette — Witch v3 (tenebrous) */
  --c-bg:          #030A10;  /* Abyssal Black */
  --c-bg-alt:      #06091A;  /* Void Blue */
  --c-bg-card:     #120818;  /* Dark Prune */
  --c-surface:     #150E24;  /* Smothered Violet */
  --c-border:      #3A1025;  /* Crimson Shadow */
  --c-border-glow: #351A48;  /* Dark Orchid */
  --c-text:        #b0a8b8;  /* Parchment */
  --c-text-muted:  #8a7a9a;  /* Dusty Lavender */
  --c-text-dim:    #5a4060;  /* Muted Plum */
  --c-heading:     #d0c8d8;  /* Lavender Mist */
  --c-accent:      #9B59B6;  /* Amethyst */
  --c-accent-dim:  #5F1A37;  /* Crimson Violet */
  --c-green:       #A1E44D;  /* Yellow Green */
  --c-amber:       #F9CB40;  /* Golden Pollen */
  --c-kill:        #E74C3C;  /* Blood Red */
  --c-glow:        #55286F;  /* Velvet Orchid */
  --c-burgundy:    #721121;  /* Burgundy */

  /* Typography */
  --f-pixel: 'Cinzel', serif;
  --f-mono:  'JetBrains Mono', 'Courier New', monospace;
  --f-base:  1rem;
  --f-sm:    0.875rem;
  --f-xs:    0.75rem;
  --f-lg:    1.125rem;
  --f-xl:    1.5rem;
  --f-2xl:   2rem;
  --f-3xl:   3rem;
  --f-hero:  clamp(2.5rem, 6vw, 5rem);

  /* Spacing */
  --s-xs:  0.25rem;
  --s-sm:  0.5rem;
  --s-md:  1rem;
  --s-lg:  1.5rem;
  --s-xl:  2rem;
  --s-2xl: 3rem;
  --s-3xl: 4rem;
  --s-4xl: 6rem;

  /* Misc */
  --radius:    0px;
  --radius-lg: 0px;
  --transition: 200ms ease;
}

/* --- Reset ------------------------------------------------ */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--f-mono);
  font-size: var(--f-base);
  line-height: 1.7;
  color: var(--c-text);
  background-color: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg {
  display: block;
  max-width: 100%;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

a {
  color: var(--c-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: #ff3333;
}

a:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

code {
  font-family: var(--f-mono);
  font-size: 0.9em;
  color: var(--c-accent);
  background: var(--c-surface);
  padding: 0.1em 0.35em;
  border-radius: var(--radius);
}

strong {
  color: var(--c-heading);
  font-weight: 700;
}

/* --- Utilities -------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--s-md);
  background: var(--c-accent);
  color: #fff;
  padding: var(--s-sm) var(--s-md);
  border-radius: var(--radius);
  z-index: 1000;
  font-size: var(--f-sm);
}

.skip-link:focus {
  top: var(--s-md);
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--s-lg);
}

.container--narrow {
  max-width: 780px;
}

/* --- Scanline + dither overlays (global, subtle) ---------- */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(0, 0, 0, 0.04) 2px,
      rgba(0, 0, 0, 0.04) 4px
    );
  z-index: 9999;
}

/* No body overlay — clean dark background */

/* --- HERO ------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--s-3xl) var(--s-lg);
  overflow: hidden;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(85, 40, 111, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 50% 80%, rgba(114, 17, 33, 0.06) 0%, transparent 50%),
    var(--c-bg);
}

/* === STARFIELD === */
.hero__stars {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

/* --- Static dim stars (1px) --- */
.hero__star-layer--dim {
  position: absolute;
  inset: 0;
  width: 1px;
  height: 1px;
  background: transparent;
  box-shadow:
    25px 50px #d0c8d8, 100px 180px #d0c8d8, 210px 30px rgba(208,200,216,0.7),
    350px 120px #d0c8d8, 480px 80px rgba(208,200,216,0.6), 600px 200px #d0c8d8,
    720px 45px rgba(208,200,216,0.8), 850px 170px #d0c8d8, 950px 60px rgba(208,200,216,0.5),
    1100px 140px #d0c8d8, 1250px 90px rgba(208,200,216,0.7), 1400px 210px #d0c8d8,
    80px 300px rgba(208,200,216,0.6), 200px 380px #d0c8d8, 340px 450px rgba(208,200,216,0.5),
    500px 320px #d0c8d8, 660px 400px rgba(208,200,216,0.7), 800px 350px #d0c8d8,
    920px 420px rgba(208,200,216,0.6), 1050px 310px #d0c8d8, 1200px 480px rgba(208,200,216,0.5),
    1350px 360px #d0c8d8, 55px 520px rgba(208,200,216,0.7), 180px 600px #d0c8d8,
    300px 560px rgba(208,200,216,0.6), 450px 650px #d0c8d8, 590px 580px rgba(208,200,216,0.5),
    740px 630px #d0c8d8, 870px 550px rgba(208,200,216,0.7), 1000px 620px #d0c8d8,
    1150px 570px rgba(208,200,216,0.6), 1300px 660px #d0c8d8, 130px 720px rgba(208,200,216,0.5),
    280px 760px #d0c8d8, 420px 700px rgba(208,200,216,0.7), 570px 780px #d0c8d8,
    700px 740px rgba(208,200,216,0.6), 830px 800px #d0c8d8, 980px 730px rgba(208,200,216,0.5),
    1120px 790px #d0c8d8, 1270px 750px rgba(208,200,216,0.7), 1420px 810px #d0c8d8;
}

/* --- Twinkling bright stars (2px) --- */
.hero__star-layer--bright {
  position: absolute;
  inset: 0;
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: transparent;
  box-shadow:
    120px 70px rgba(249,203,64,0.9), 380px 200px rgba(155,89,182,0.8),
    650px 40px rgba(249,203,64,0.7), 900px 160px rgba(155,89,182,0.9),
    1100px 100px rgba(249,203,64,0.8), 250px 350px rgba(155,89,182,0.7),
    530px 420px rgba(249,203,64,0.9), 780px 300px rgba(155,89,182,0.8),
    1000px 380px rgba(249,203,64,0.7), 1300px 250px rgba(155,89,182,0.9),
    70px 550px rgba(249,203,64,0.8), 400px 600px rgba(155,89,182,0.7),
    700px 520px rgba(249,203,64,0.9), 1050px 580px rgba(155,89,182,0.8),
    200px 700px rgba(249,203,64,0.7), 550px 750px rgba(155,89,182,0.9),
    850px 680px rgba(249,203,64,0.8), 1200px 720px rgba(155,89,182,0.7);
  animation: twinkle 4s ease-in-out infinite alternate;
}

/* --- Shooting stars --- */
.hero__shooting-star {
  position: absolute;
  height: 1px;
  border-radius: 50%;
  opacity: 0;
}

.hero__shooting-star--1 {
  width: 100px;
  background: linear-gradient(90deg, rgba(208,200,216,0.9), rgba(155,89,182,0.3), transparent);
  top: 8%;
  left: 15%;
  transform: rotate(-18deg);
  animation: shoot1 13s 1s ease-in infinite;
}

.hero__shooting-star--2 {
  width: 60px;
  background: linear-gradient(90deg, rgba(249,203,64,0.8), rgba(208,200,216,0.2), transparent);
  top: 30%;
  left: 55%;
  transform: rotate(-35deg);
  animation: shoot2 19s 7s ease-in infinite;
}

.hero__shooting-star--3 {
  width: 130px;
  background: linear-gradient(90deg, rgba(208,200,216,0.7), rgba(155,89,182,0.2), transparent);
  top: 18%;
  left: 70%;
  transform: rotate(-12deg);
  animation: shoot3 23s 14s ease-in infinite;
}

@keyframes twinkle {
  0% { opacity: 0.4; }
  25% { opacity: 0.9; }
  50% { opacity: 0.5; }
  75% { opacity: 1; }
  100% { opacity: 0.6; }
}

@keyframes shoot1 {
  0%, 92% { opacity: 0; transform: rotate(-18deg) translateX(0); }
  93% { opacity: 0.9; }
  96% { opacity: 0.3; }
  97% { opacity: 0; transform: rotate(-18deg) translateX(45vw); }
  100% { opacity: 0; }
}

@keyframes shoot2 {
  0%, 95% { opacity: 0; transform: rotate(-35deg) translateX(0); }
  95.5% { opacity: 0.8; }
  97.5% { opacity: 0.2; }
  98% { opacity: 0; transform: rotate(-35deg) translateX(30vw); }
  100% { opacity: 0; }
}

@keyframes shoot3 {
  0%, 88% { opacity: 0; transform: rotate(-12deg) translateX(0); }
  89% { opacity: 0.7; }
  93% { opacity: 0.15; }
  94% { opacity: 0; transform: rotate(-12deg) translateX(55vw); }
  100% { opacity: 0; }
}

.hero__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-lg);
}

.hero__logo {
  color: #721121;
  opacity: 0.9;
}

.hero__title {
  font-family: var(--f-pixel);
  font-size: var(--f-hero);
  font-weight: 700;
  letter-spacing: 0.15em;
  line-height: 1;
  color: var(--c-heading);
  position: relative;
}

.hero__title-dead {
  color: #721121;
  text-shadow: 0 0 30px rgba(85, 40, 111, 0.6), 0 0 60px rgba(85, 40, 111, 0.3);
}

.hero__title-bolt {
  color: var(--c-heading);
}

.hero__tagline {
  font-family: var(--f-pixel);
  font-size: var(--f-sm);
  color: var(--c-text-muted);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-top: var(--s-sm);
}

.hero__subtitle {
  font-size: var(--f-sm);
  color: var(--c-text-muted);
  margin-top: var(--s-lg);
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  gap: var(--s-md);
  justify-content: center;
  margin-top: var(--s-xl);
  flex-wrap: wrap;
}

/* Scroll hint */
.hero__scroll-hint {
  position: absolute;
  bottom: var(--s-xl);
  left: 50%;
  transform: translateX(-50%);
}

.hero__scroll-hint span {
  display: block;
  width: 18px;
  height: 30px;
  border: 2px solid var(--c-text-dim);
  position: relative;
}

.hero__scroll-hint span::before {
  content: '';
  position: absolute;
  top: 5px;
  left: 50%;
  width: 4px;
  height: 6px;
  margin-left: -2px;
  background: var(--c-text-dim);
  animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
  0%, 100% { opacity: 0.3; transform: translateY(0); }
  50%      { opacity: 1;   transform: translateY(6px); }
}

/* --- BUTTONS --------------------------------------------- */
.btn {
  display: inline-block;
  padding: 0.65em 1.6em;
  font-family: var(--f-pixel);
  font-size: var(--f-xs);
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 3px;
}

.btn--primary {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
}

.btn--primary:hover {
  background: #7D3C98;
  border-color: #7D3C98;
  color: #fff;
  box-shadow: 0 0 20px rgba(155, 89, 182, 0.3);
}

.btn--ghost {
  background: transparent;
  color: var(--c-text);
  border-color: var(--c-border-glow);
}

.btn--ghost:hover {
  border-color: var(--c-text-muted);
  color: var(--c-heading);
}

/* Hero buttons — lock / seal / kill palette */
.btn--kill {
  background: rgba(231, 76, 60, 0.08);
  color: var(--c-kill);
  border-color: rgba(231, 76, 60, 0.3);
}

.btn--kill:hover {
  background: rgba(231, 76, 60, 0.18);
  border-color: var(--c-kill);
  box-shadow: 0 0 16px rgba(231, 76, 60, 0.25);
}

.btn--lock {
  background: rgba(161, 228, 77, 0.06);
  color: var(--c-green);
  border-color: rgba(161, 228, 77, 0.25);
}

.btn--lock:hover {
  background: rgba(161, 228, 77, 0.15);
  border-color: var(--c-green);
  box-shadow: 0 0 16px rgba(161, 228, 77, 0.25);
}

.btn--seal {
  background: rgba(249, 203, 64, 0.06);
  color: var(--c-amber);
  border-color: rgba(249, 203, 64, 0.25);
}

.btn--seal:hover {
  background: rgba(249, 203, 64, 0.15);
  border-color: var(--c-amber);
  box-shadow: 0 0 16px rgba(249, 203, 64, 0.25);
}

/* --- SECTIONS -------------------------------------------- */
.section {
  padding: var(--s-4xl) 0;
}

.section__heading {
  font-family: var(--f-pixel);
  font-size: var(--f-lg);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-heading);
  margin-bottom: var(--s-2xl);
  text-align: center;
  position: relative;
}

/* Pixel-art separator: three squares */
.section__heading::after {
  content: '\25AA \25AA \25AA';
  display: block;
  font-family: initial;
  font-size: var(--f-xs);
  letter-spacing: 0.5em;
  color: var(--c-accent-dim);
  margin: var(--s-md) auto 0;
}

.section__intro {
  text-align: center;
  color: var(--c-text-muted);
  margin-bottom: var(--s-2xl);
}

/* Alternating backgrounds */
.section--threat,
.section--levels,
.section--features,
.section--ethics {
  background: var(--c-bg-alt);
}

/* --- THREAT STATEMENT ------------------------------------ */
.threat-quote {
  border-left: 3px solid var(--c-accent);
  padding-left: var(--s-lg);
  font-size: var(--f-lg);
  color: var(--c-heading);
  line-height: 1.8;
}

.threat-detail {
  margin-top: var(--s-lg);
  color: var(--c-text-muted);
  font-size: var(--f-sm);
}

/* --- STEPS (How it works) -------------------------------- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--s-2xl);
  list-style: none;
  counter-reset: step;
}

.step {
  text-align: center;
  counter-increment: step;
  position: relative;
}

.step::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font-family: var(--f-pixel);
  font-size: var(--f-2xl);
  font-weight: 400;
  color: var(--c-border-glow);
  margin-bottom: var(--s-sm);
}

.step__icon {
  color: var(--c-accent);
  margin-bottom: var(--s-md);
}

.step__title {
  font-family: var(--f-pixel);
  font-size: var(--f-base);
  font-weight: 400;
  color: var(--c-heading);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--s-sm);
}

.step__desc {
  font-size: var(--f-sm);
  color: var(--c-text-muted);
  line-height: 1.7;
}

/* --- RESPONSE LEVELS ------------------------------------- */
.levels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--s-xl);
  padding: var(--s-sm);
}

.level-card {
  background: var(--c-bg-card);
  border: 1px solid var(--c-accent-dim);
  box-shadow: inset 0 0 0 3px var(--c-bg-card), inset 0 0 0 4px var(--c-border);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.level-card:hover {
  border-color: var(--c-border-glow);
  box-shadow: inset 0 0 0 3px var(--c-bg-card), inset 0 0 0 4px var(--c-border-glow);
}

/* Header bar: colored strip with icon + name + trigger */
.level-card__header {
  display: flex;
  align-items: center;
  gap: var(--s-sm);
  padding: var(--s-sm) var(--s-md);
  border-bottom: 1px solid var(--c-border);
}

.level-card__header svg {
  flex-shrink: 0;
}

.level-card__name {
  font-family: var(--f-pixel);
  font-size: var(--f-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.level-card__trigger {
  margin-left: auto;
  font-family: var(--f-pixel);
  font-size: 0.6rem;
  color: var(--c-text-dim);
  letter-spacing: 0.06em;
  font-style: italic;
}

.level-card__action {
  padding: var(--s-md);
  font-size: var(--f-sm);
  color: var(--c-text-muted);
  line-height: 1.6;
}

/* --- LOCK --- */
.level-card--lock .level-card__header {
  background: rgba(161, 228, 77, 0.06);
  border-bottom-color: rgba(161, 228, 77, 0.12);
}

.level-card--lock .level-card__header svg,
.level-card--lock .level-card__name {
  color: var(--c-green);
}

.level-card--lock:hover {
  border-color: rgba(161, 228, 77, 0.25);
}

/* --- SEAL --- */
.level-card--seal .level-card__header {
  background: rgba(249, 203, 64, 0.06);
  border-bottom-color: rgba(249, 203, 64, 0.12);
}

.level-card--seal .level-card__header svg,
.level-card--seal .level-card__name {
  color: var(--c-amber);
}

.level-card--seal:hover {
  border-color: rgba(249, 203, 64, 0.25);
}

/* --- KILL --- */
.level-card--kill .level-card__header {
  background: rgba(231, 76, 60, 0.08);
  border-bottom-color: rgba(231, 76, 60, 0.15);
}

.level-card--kill .level-card__header svg,
.level-card--kill .level-card__name {
  color: var(--c-kill);
}

.level-card--kill:hover {
  border-color: rgba(231, 76, 60, 0.3);
}

/* --- ANCHORS --------------------------------------------- */
.anchors-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--s-lg);
  max-width: 600px;
  margin: 0 auto;
}

.anchor-item {
  display: flex;
  align-items: flex-start;
  gap: var(--s-lg);
}

.anchor-item__icon {
  flex-shrink: 0;
  color: var(--c-accent);
  margin-top: 0.15em;
  opacity: 0.7;
}

.anchor-item__title {
  font-family: var(--f-pixel);
  font-size: var(--f-sm);
  font-weight: 400;
  color: var(--c-heading);
  letter-spacing: 0.04em;
  margin-bottom: var(--s-xs);
}

.anchor-item__desc {
  font-size: var(--f-sm);
  color: var(--c-text-muted);
}

/* --- FEATURES GRID --------------------------------------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--s-xl);
  padding: var(--s-sm);
}

.feature-card {
  background: var(--c-bg-card);
  border: 1px solid var(--c-accent-dim);
  box-shadow: inset 0 0 0 3px var(--c-bg-card), inset 0 0 0 4px var(--c-border);
  padding: var(--s-xl);
  transition: border-color var(--transition), box-shadow var(--transition);
  position: relative;
}


.feature-card:hover {
  border-color: var(--c-border-glow);
  box-shadow: inset 0 0 0 3px var(--c-bg-card), inset 0 0 0 4px var(--c-border-glow);
}

.feature-card__icon {
  color: var(--c-accent);
  margin-bottom: var(--s-md);
  opacity: 0.8;
}

.feature-card__title {
  font-family: var(--f-pixel);
  font-size: var(--f-xs);
  color: var(--c-heading);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--s-sm);
}

.feature-card__title code {
  font-family: var(--f-mono);
  font-size: inherit;
  background: none;
  padding: 0;
  color: var(--c-accent);
}

.feature-card p {
  font-size: var(--f-sm);
  color: var(--c-text-muted);
  line-height: 1.7;
}

/* --- TERMINAL -------------------------------------------- */
/* --- GRIMOIRE -------------------------------------------- */
.grimoire {
  background: var(--c-bg-card);
  border: 1px solid var(--c-accent-dim);
  box-shadow: inset 0 0 0 3px var(--c-bg-card), inset 0 0 0 4px var(--c-border);
  padding: var(--s-xl) var(--s-2xl);
}

.grimoire__header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-md);
  margin-bottom: var(--s-xl);
  padding-bottom: var(--s-md);
  border-bottom: 1px solid var(--c-border);
}

.grimoire__ornament {
  color: var(--c-accent-dim);
  font-size: var(--f-sm);
  letter-spacing: 0.3em;
}

.grimoire__title {
  font-family: var(--f-pixel);
  font-size: var(--f-sm);
  color: var(--c-text-dim);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.grimoire__body {
  overflow-x: auto;
}

.grimoire__spells {
  display: grid;
  gap: var(--s-xs);
}

.grimoire__annotation {
  font-family: var(--f-pixel);
  font-size: var(--f-xs);
  color: var(--c-text-muted);
  font-style: italic;
  margin-top: var(--s-md);
  letter-spacing: 0.05em;
}

.grimoire__annotation:first-child {
  margin-top: 0;
}

.grimoire__incantation {
  margin-left: var(--s-lg);
}

.grimoire__incantation code {
  font-family: var(--f-mono);
  font-size: var(--f-sm);
  color: var(--c-heading);
  background: none;
  padding: 0;
  text-shadow: 0 0 12px rgba(155, 89, 182, 0.2);
}

/* --- VAULTS ---------------------------------------------- */
.section--vaults {
  background: var(--c-bg-alt);
}

.vault-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--s-md);
  margin-bottom: var(--s-xl);
}

.vault-concept {
  padding: var(--s-lg);
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  transition: border-color var(--transition);
}

.vault-concept:hover {
  border-color: var(--c-border-glow);
}

.vault-concept__icon {
  color: var(--c-accent);
  opacity: 0.7;
  margin-bottom: var(--s-sm);
}

.vault-concept__title {
  font-family: var(--f-pixel);
  font-size: var(--f-xs);
  font-weight: 400;
  color: var(--c-heading);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--s-sm);
}

.vault-concept__desc {
  font-size: var(--f-sm);
  color: var(--c-text-muted);
  line-height: 1.7;
}

.vault-note {
  font-size: var(--f-xs);
  color: var(--c-text-dim);
  text-align: center;
  border-top: 1px solid var(--c-border);
  padding-top: var(--s-md);
}

/* --- ARCHITECTURE ---------------------------------------- */
.arch-diagram {
  max-width: 640px;
  margin: 0 auto;
}

.arch-zone {
  padding: var(--s-xl) var(--s-lg);
  border: 1px solid var(--c-accent-dim);
  box-shadow: inset 0 0 0 3px var(--c-bg-card), inset 0 0 0 4px var(--c-border);
  position: relative;
}

.arch-zone--root {
  background: var(--c-bg-card);
}

.arch-zone--user {
  background: var(--c-bg-card);
  border-color: var(--c-border-glow);
}

.arch-zone__label {
  font-family: var(--f-pixel);
  font-size: var(--f-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  position: absolute;
  top: -0.65em;
  left: var(--s-md);
  padding: 0 var(--s-sm);
}

.arch-zone--root .arch-zone__label {
  color: var(--c-accent);
  background: var(--c-bg-card);
}

.arch-zone--user .arch-zone__label {
  color: var(--c-green);
  background: var(--c-bg-card);
}

.arch-zone__items {
  display: flex;
  flex-direction: column;
  gap: var(--s-sm);
}

.arch-node {
  display: flex;
  align-items: center;
  gap: var(--s-md);
  padding: var(--s-md) var(--s-md);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  transition: border-color var(--transition);
}

.arch-node:hover {
  border-color: var(--c-border-glow);
}

.arch-node--primary {
  border-color: var(--c-accent-dim);
  border-width: 2px;
  box-shadow: 0 0 12px rgba(155, 89, 182, 0.1);
}

.arch-node--primary:hover {
  border-color: var(--c-accent);
  box-shadow: 0 0 20px rgba(155, 89, 182, 0.2);
}

.arch-node__icon {
  flex-shrink: 0;
  color: var(--c-text-muted);
}

.arch-node--primary .arch-node__icon {
  color: var(--c-accent);
}

.arch-node__info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.arch-node__name {
  font-family: var(--f-mono);
  font-size: var(--f-sm);
  font-weight: 700;
  color: var(--c-heading);
}

.arch-node__desc {
  font-size: var(--f-xs);
  color: var(--c-text-muted);
}

/* IPC separator between zones */
.arch-separator {
  display: flex;
  align-items: center;
  gap: var(--s-md);
  padding: var(--s-md) 0;
}

.arch-separator__line {
  flex: 1;
  height: 1px;
  background: repeating-linear-gradient(
    90deg,
    var(--c-accent-dim) 0,
    var(--c-accent-dim) 4px,
    transparent 4px,
    transparent 8px
  );
}

.arch-separator__label {
  font-family: var(--f-pixel);
  font-size: 0.6rem;
  font-weight: 400;
  color: var(--c-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  white-space: nowrap;
}

/* --- USERS ----------------------------------------------- */
.users-statement {
  font-size: var(--f-lg);
  color: var(--c-text);
  line-height: 1.9;
  text-align: center;
}

/* --- ETHICS / CAROUSEL ----------------------------------- */
.carousel {
  position: relative;
  margin-bottom: var(--s-2xl);
}

.carousel__track {
  position: relative;
  min-height: 10rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.carousel__slide {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
  padding: 0 var(--s-xl);
}

.carousel__slide--active {
  opacity: 1;
  pointer-events: auto;
}

.carousel__text {
  font-size: var(--f-base);
  color: var(--c-heading);
  line-height: 1.9;
  font-style: italic;
  max-width: 600px;
}

.carousel__cite {
  margin-top: var(--s-md);
  font-size: var(--f-xs);
  color: var(--c-text-dim);
  font-style: normal;
  letter-spacing: 0.04em;
}

.carousel__cite cite {
  font-style: italic;
}

.carousel__nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-md);
  margin-top: var(--s-lg);
}

.carousel__btn {
  background: none;
  border: 1px solid var(--c-border);
  color: var(--c-text-dim);
  padding: var(--s-sm);
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.carousel__btn:hover {
  color: var(--c-heading);
  border-color: var(--c-text-muted);
}

.carousel__btn:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
}

.carousel__dots {
  display: flex;
  gap: var(--s-sm);
}

.carousel__dot {
  width: 8px;
  height: 8px;
  background: var(--c-border);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background var(--transition);
}

.carousel__dot:hover {
  background: var(--c-text-muted);
}

.carousel__dot--active {
  background: var(--c-accent);
}

.carousel__dot:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
}

.ethics-detail {
  margin-top: var(--s-lg);
  font-size: var(--f-sm);
  color: var(--c-text-muted);
  text-align: center;
}

/* --- FOOTER ---------------------------------------------- */
.footer {
  padding: var(--s-2xl) 0;
  border-top: 1px solid var(--c-border);
}

.footer__inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--s-sm);
}

.footer__author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-sm);
  font-size: var(--f-sm);
  color: var(--c-text-muted);
  margin-bottom: var(--s-md);
}

.footer__flame {
  color: var(--c-burgundy);
  display: inline-block;
  vertical-align: middle;
}

.footer__handle {
  font-family: var(--f-pixel);
  color: var(--c-burgundy);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-shadow: 0 0 16px rgba(85, 40, 111, 0.5);
}

.footer__license {
  font-family: var(--f-pixel);
  font-size: var(--f-xs);
  color: var(--c-text-muted);
  letter-spacing: 0.08em;
}

.footer__gpg {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-xs);
  font-size: var(--f-xs);
}

.footer__gpg-icon {
  color: var(--c-text-dim);
  display: inline-block;
}

.footer__fingerprint {
  font-size: var(--f-xs);
  color: var(--c-text-dim);
  letter-spacing: 0.05em;
}

.footer__fingerprint code {
  font-size: inherit;
  color: var(--c-text-dim);
  background: none;
  padding: 0;
}


/* --- Reveal animation ------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Reduced motion -------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* --- Responsive ------------------------------------------ */
@media (max-width: 768px) {
  :root {
    --f-hero: 2.2rem;
  }

  .section {
    padding: var(--s-3xl) 0;
  }

  .hero {
    min-height: 90vh;
    padding: var(--s-2xl) var(--s-md);
  }

  .steps {
    grid-template-columns: 1fr;
    gap: var(--s-xl);
  }

  .levels-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }

  .hero__actions {
    flex-direction: column;
    align-items: center;
  }

  .threat-quote {
    font-size: var(--f-base);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--s-md);
  }

  .grimoire {
    padding: var(--s-md) var(--s-lg);
  }

  .grimoire__incantation code {
    font-size: var(--f-xs);
  }
}