:root {
  /* Brand — logo palette: red field, black knight, white type */
  --brand-red: #ff0000;
  --brand-red-deep: #cc0000;
  --brand-black: #000000;
  --void: #050505;
  --ink: #0a0a0a;
  --slate: #121212;
  --steel: #5c5c5c;
  --mist: #b0b0b0;
  --bone: #e8e8e8;
  --ivory: #ffffff;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
  background: var(--void);
  overflow-x: hidden;
}

#chess-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.65) 0%, transparent 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--ivory);
  font-weight: 700;
  letter-spacing: 0.06em;
  font-family: var(--font-display);
}

.logo-mark {
  font-size: 1.35rem;
  color: var(--ivory);
  line-height: 1;
  filter: drop-shadow(0 0 12px rgba(255, 255, 255, 0.25));
}

.logo-text {
  display: inline-flex;
  align-items: baseline;
  gap: 0.02em;
}

.logo-ax {
  font-size: 0.72em;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: lowercase;
}

.logo-leron {
  font-size: 1em;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.footer-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.02em;
  font-family: var(--font-display);
}

.nav {
  display: none;
  gap: 2rem;
}

@media (min-width: 900px) {
  .nav {
    display: flex;
  }
}

.nav a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 0.2s var(--ease);
}

.nav a:hover {
  color: var(--ivory);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.btn-primary {
  background: var(--brand-black);
  color: var(--ivory);
  border-color: var(--brand-black);
}

.btn-primary:hover {
  background: var(--ink);
  box-shadow: 0 0 0 1px var(--ivory), 0 8px 32px rgba(0, 0, 0, 0.4);
}

.hero .btn-primary {
  background: var(--ivory);
  color: var(--brand-black);
  border-color: var(--ivory);
}

.hero .btn-primary:hover {
  background: var(--bone);
  box-shadow: 0 0 0 2px var(--brand-black), 0 12px 40px rgba(0, 0, 0, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--ivory);
  border-color: rgba(255, 255, 255, 0.45);
}

.btn-outline:hover {
  border-color: var(--ivory);
  background: rgba(255, 255, 255, 0.08);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: var(--ivory);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-ghost:hover {
  border-color: var(--ivory);
  background: rgba(255, 255, 255, 0.14);
}

.btn-block {
  width: 100%;
}

main {
  position: relative;
  z-index: 2;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 7rem 2rem 4rem;
  position: relative;
  background: var(--brand-red);
  color: var(--ivory);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 75% 65% at 50% 42%, black 25%, transparent 72%);
  pointer-events: none;
}

.hero-content {
  max-width: 52rem;
  margin: 0 auto;
  text-align: center;
  position: relative;
}

.tag {
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: rgba(0, 0, 0, 0.45);
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.25rem, 7vw, 4.25rem);
  line-height: 1.08;
  color: var(--ivory);
  margin: 0 0 1.5rem;
  letter-spacing: -0.02em;
}

.hero-title .line {
  display: block;
}

.hero-title .accent {
  color: var(--brand-black);
  text-shadow: none;
}

.hero-lead {
  max-width: 36rem;
  margin: 0 auto 2rem;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.92);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.hero-meta {
  display: grid;
  gap: 1rem;
  max-width: 28rem;
  margin: 0 auto;
  text-align: left;
  border-top: 1px solid rgba(0, 0, 0, 0.15);
  padding-top: 2rem;
}

.hero-meta div {
  display: grid;
  grid-template-columns: minmax(5.5rem, auto) 1fr;
  gap: 1rem;
  align-items: baseline;
}

.hero-meta dt {
  font-size: 0.75rem;
  color: var(--brand-black);
  letter-spacing: 0.08em;
  margin: 0;
  font-weight: 700;
}

.hero-meta dd {
  margin: 0;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.88);
}

.section {
  padding: 5rem 2rem;
  position: relative;
}

.section-head {
  max-width: 36rem;
  margin-bottom: 3rem;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--ivory);
  margin: 0.5rem 0 1rem;
  letter-spacing: -0.02em;
}

.section-head p {
  margin: 0;
  color: var(--mist);
  font-size: 0.85rem;
}

.section-index {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--brand-red);
  text-transform: uppercase;
  font-weight: 600;
}

.section-index.light {
  color: rgba(255, 255, 255, 0.55);
}

.pieces {
  background: linear-gradient(180deg, var(--brand-black) 0%, var(--ink) 12%, var(--ink) 100%);
}

.piece-cards {
  display: grid;
  gap: 1.25rem;
  max-width: 72rem;
  margin: 0 auto;
}

@media (min-width: 700px) {
  .piece-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1100px) {
  .piece-cards {
    grid-template-columns: repeat(4, 1fr);
  }
}

.card {
  background: linear-gradient(145deg, var(--slate) 0%, var(--brand-black) 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.75rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--brand-red), transparent);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 0, 0, 0.35);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 0, 0, 0.12);
}

.card:hover::before {
  opacity: 1;
}

.card-icon {
  font-size: 2.5rem;
  line-height: 1;
  margin-bottom: 1rem;
  filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.5));
  transform: perspective(400px) rotateX(12deg);
  color: var(--ivory);
}

.card[data-piece="pawn"] .card-icon { color: var(--mist); }
.card[data-piece="knight"] .card-icon { color: var(--ivory); }
.card[data-piece="rook"] .card-icon { color: var(--bone); }
.card[data-piece="queen"] .card-icon { color: var(--brand-red); }

.card h3 {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ivory);
  margin: 0 0 0.75rem;
  text-transform: uppercase;
}

.card p {
  margin: 0 0 1rem;
  font-size: 0.78rem;
  line-height: 1.65;
}

.card-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.65rem;
  color: var(--steel);
}

.card-tags li {
  padding: 0.25rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.defense {
  background: var(--void);
}

.defense-inner {
  max-width: 48rem;
  margin: 0 auto;
}

.doctrine-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: doctrine;
}

.doctrine-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  align-items: start;
}

.doctrine-num {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--brand-red);
  padding-top: 0.2rem;
  font-weight: 600;
}

.doctrine-list strong {
  display: block;
  color: var(--ivory);
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
  letter-spacing: 0.04em;
}

.doctrine-list span:last-child {
  font-size: 0.78rem;
  color: var(--mist);
}

.endgame {
  padding: 6rem 2rem 8rem;
}

.endgame-card {
  max-width: 32rem;
  margin: 0 auto;
  background: linear-gradient(160deg, var(--slate) 0%, var(--void) 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 2.5rem;
  box-shadow: 0 0 0 1px rgba(255, 0, 0, 0.2), 0 40px 80px rgba(0, 0, 0, 0.55);
}

.endgame-card h2 {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--ivory);
  margin: 0.5rem 0 1rem;
  letter-spacing: -0.02em;
}

.endgame-card > p {
  margin: 0 0 2rem;
  font-size: 0.85rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.field span {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
}

.field input,
.field textarea {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.75rem 1rem;
  background: var(--ink);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--ivory);
  resize: vertical;
  transition: border-color 0.2s var(--ease);
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--brand-red);
}

.form-note {
  margin: 1.25rem 0 0;
  font-size: 0.65rem;
  color: var(--steel);
}

.site-footer {
  position: relative;
  z-index: 2;
  padding: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-row {
  max-width: 72rem;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: var(--steel);
}

.footer-motto {
  color: var(--mist);
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: 0.02em;
  font-style: normal;
}

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

/* —— Pricing page —— */
.page-main {
  position: relative;
  z-index: 2;
  padding-top: 5.5rem;
}

.pricing-hero {
  padding: 3.5rem 2rem 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, var(--ink) 0%, var(--void) 100%);
}

.pricing-hero-inner {
  max-width: 42rem;
  margin: 0 auto;
}

.pricing-hero-tag {
  color: var(--brand-red);
  margin-bottom: 1rem;
}

.pricing-hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  line-height: 1.15;
  color: var(--ivory);
  margin: 0 0 1.25rem;
  letter-spacing: -0.02em;
}

.pricing-hero-lead {
  margin: 0 0 1.25rem;
  font-size: 0.9rem;
  color: var(--mist);
  line-height: 1.7;
}

.pricing-hero-note {
  margin: 0;
  font-size: 0.7rem;
  color: var(--steel);
  letter-spacing: 0.04em;
}

.pricing-section {
  padding: 3.5rem 2rem 4rem;
}

.pricing-grid {
  display: grid;
  gap: 1.5rem;
  max-width: 72rem;
  margin: 0 auto;
  align-items: stretch;
}

@media (min-width: 900px) {
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
}

.pricing-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 2rem 1.75rem 1.75rem;
  background: linear-gradient(160deg, var(--slate) 0%, var(--brand-black) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.pricing-card:hover {
  border-color: rgba(255, 255, 255, 0.16);
}

.pricing-card--popular {
  border-color: rgba(255, 0, 0, 0.45);
  box-shadow: 0 0 0 1px rgba(255, 0, 0, 0.12), 0 28px 56px rgba(0, 0, 0, 0.45);
}

@media (min-width: 900px) {
  .pricing-card--popular {
    transform: translateY(-6px);
    margin-bottom: 6px;
  }
}

.pricing-badge {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  margin: 0;
  padding: 0.35rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ivory);
  background: var(--brand-red);
  border: 1px solid rgba(255, 255, 255, 0.2);
  white-space: nowrap;
}

.pricing-card-head {
  margin-bottom: 1.25rem;
}

.pricing-name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--ivory);
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.pricing-hook {
  margin: 0;
  font-size: 0.78rem;
  color: var(--mist);
  line-height: 1.55;
}

.pricing-price {
  margin: 0 0 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.pricing-from {
  display: block;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 0.2rem;
}

.pricing-price:has(.pricing-from) .pricing-term {
  display: block;
  margin-left: 0;
  margin-top: 0.2rem;
}

.pricing-amount {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--ivory);
  letter-spacing: -0.02em;
}

.pricing-term {
  display: inline-block;
  margin-left: 0.35rem;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--steel);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  vertical-align: middle;
}

.pricing-features {
  list-style: none;
  margin: 0 0 1.75rem;
  padding: 0;
  flex: 1;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--mist);
}

.pricing-features li {
  position: relative;
  padding-left: 1.35rem;
  margin-bottom: 0.85rem;
}

.pricing-features li:last-child {
  margin-bottom: 0;
}

.pricing-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 6px;
  height: 6px;
  background: var(--brand-red);
  border-radius: 1px;
}

.pricing-cta {
  margin-top: auto;
}

.pricing-section .pricing-card--popular .btn-primary {
  background: var(--brand-red);
  color: var(--ivory);
  border-color: var(--brand-red);
}

.pricing-section .pricing-card--popular .btn-primary:hover {
  background: var(--brand-red-deep);
  border-color: var(--brand-red-deep);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.25), 0 12px 40px rgba(255, 0, 0, 0.25);
}

.pricing-software {
  padding: 2.5rem 2rem 3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--void);
}

.pricing-software-inner {
  max-width: 72rem;
  margin: 0 auto;
}

.pricing-software-title {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.65rem);
  font-weight: 700;
  color: var(--ivory);
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.pricing-software-lead {
  margin: 0 0 2rem;
  max-width: 42rem;
  font-size: 0.82rem;
  color: var(--mist);
  line-height: 1.65;
}

.pricing-software-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 900px) {
  .pricing-software-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.software-card {
  display: flex;
  flex-direction: column;
  padding: 1.75rem 1.5rem;
  background: linear-gradient(165deg, var(--slate) 0%, var(--brand-black) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: border-color 0.25s var(--ease);
}

.software-card:hover {
  border-color: rgba(255, 255, 255, 0.16);
}

.software-name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ivory);
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.software-card .pricing-price {
  margin: 0 0 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.software-card .pricing-amount {
  font-size: 1.5rem;
}

.software-price-request {
  margin: 0 0 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bone);
}

.software-desc {
  flex: 1;
  margin: 0 0 1.25rem;
  font-size: 0.76rem;
  line-height: 1.6;
  color: var(--mist);
}

.software-card .pricing-cta {
  margin-top: 0;
}

.pricing-addons {
  padding: 1rem 2rem 3.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: linear-gradient(180deg, var(--ink) 0%, var(--void) 40%);
}

.pricing-addons-inner {
  max-width: 72rem;
  margin: 0 auto;
}

.pricing-addons-title {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.65rem);
  font-weight: 700;
  color: var(--ivory);
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.pricing-addons-lead {
  margin: 0 0 2rem;
  max-width: 40rem;
  font-size: 0.82rem;
  color: var(--mist);
  line-height: 1.65;
}

.pricing-addons-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
}

.addon-card {
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1.35rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 2px;
}

.addon-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ivory);
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.addon-card .pricing-price {
  margin: 0 0 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.addon-card .pricing-amount {
  font-size: 1.5rem;
}

.addon-desc {
  flex: 1;
  margin: 0 0 1.25rem;
  font-size: 0.76rem;
  line-height: 1.6;
  color: var(--mist);
}

.addon-card .pricing-cta {
  margin-top: 0;
}

.pricing-faq {
  padding: 2rem 2rem 5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--void);
}

.pricing-faq-inner {
  max-width: 52rem;
  margin: 0 auto;
}

.pricing-faq-title {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 700;
  color: var(--ivory);
  margin: 0 0 2rem;
  letter-spacing: -0.02em;
}

.faq-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .faq-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
    align-items: start;
  }
}

.faq-item {
  margin: 0;
}

.faq-q {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ivory);
  margin: 0 0 0.65rem;
  letter-spacing: 0.04em;
  line-height: 1.35;
}

.faq-a {
  margin: 0;
  font-size: 0.76rem;
  color: var(--mist);
  line-height: 1.65;
}

.faq-a strong {
  color: var(--bone);
  font-weight: 600;
}