/* ============================================================
   MIKE KNIGHT CUSTOMS · GLOBAL DESIGN SYSTEM  v1.0
   Direction: Luxury Minimalist / Mechanical Grit
   Base #0B0F12 · 1px structural borders · mono data readouts
   ============================================================ */

/* ---------- 01 · TOKENS ---------- */
:root {
  /* surface */
  --ink:        #0B0F12;   /* page base: deep ink slate      */
  --ink-2:      #10151A;   /* raised panel                    */
  --ink-3:      #161D24;   /* hover / inset field             */
  --line:       #222B33;   /* 1px structural border           */
  --line-soft:  #1A2229;   /* hairline dividers               */

  /* type color */
  --white:      #F4F7F9;   /* primary display + headings      */
  --silver:     #98A2AB;   /* body copy                       */
  --silver-dim: #5E6972;   /* captions / disabled             */

  /* single industrial accent, used sparingly */
  --mkc-green:      #A8F040;
  --mkc-green-dim:  rgba(168, 240, 64, 0.14);

  /* type stacks */
  --f-display: "Anton", "Arial Narrow", sans-serif;          /* heavy mechanical display */
  --f-body:    "Archivo", "Helvetica Neue", sans-serif;      /* geometric, hyper-legible */
  --f-data:    "IBM Plex Mono", "Courier New", monospace;    /* data readouts            */

  /* scale */
  --step--1: clamp(0.78rem, 0.74rem + 0.2vw, 0.88rem);
  --step-0:  clamp(0.95rem, 0.9rem + 0.25vw, 1.06rem);
  --step-1:  clamp(1.15rem, 1.05rem + 0.5vw, 1.45rem);
  --step-2:  clamp(1.5rem, 1.3rem + 1vw, 2.2rem);
  --step-3:  clamp(2.2rem, 1.7rem + 2.4vw, 3.6rem);
  --step-4:  clamp(3rem, 2.1rem + 4.6vw, 6rem);

  /* rhythm */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.75rem;
  --space-4: 3rem;
  --space-5: 5rem;
  --space-6: 8rem;

  --gutter: clamp(1.25rem, 4vw, 4rem);
  --max-w: 1440px;
}

/* tighter vertical rhythm on phones */
@media (max-width: 640px) {
  :root {
    --space-4: 2.25rem;
    --space-5: 3.5rem;
    --space-6: 4.5rem;
  }
}

/* ---------- 02 · RESET & BASE ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  background: var(--ink);
  color: var(--silver);
  font-family: var(--f-body);
  font-size: var(--step-0);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; }

::selection { background: var(--mkc-green); color: var(--ink); }

:focus-visible {
  outline: 1px solid var(--mkc-green);
  outline-offset: 3px;
}

/* ---------- 03 · TYPE UTILITIES ---------- */
.display {
  font-family: var(--f-display);
  font-weight: 400;
  color: var(--white);
  text-transform: uppercase;
  line-height: 0.96;
  letter-spacing: 0.005em;
}
.display--xl { font-size: var(--step-4); }
.display--lg { font-size: var(--step-3); }
.display--md { font-size: var(--step-2); }

.data {
  font-family: var(--f-data);
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--silver-dim);
}
.data--live { color: var(--mkc-green); }
.data--white { color: var(--white); }

.eyebrow {
  font-family: var(--f-data);
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--mkc-green);
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}
.eyebrow::before {
  content: "";
  width: 2rem; height: 1px;
  background: var(--mkc-green);
}

.lede {
  font-size: var(--step-1);
  font-weight: 400;
  color: var(--silver);
  max-width: 56ch;
}

.body-max { max-width: 62ch; }

/* ---------- 04 · LAYOUT PRIMITIVES ---------- */
.wrap {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 0 var(--space-3);
}

.section { padding-block: var(--space-6); }
.section--flush { padding-block: 0; }
.section--rule { border-top: 1px solid var(--line); }

/* ---------- 05 · STRUCTURAL BORDER COMPONENTS ---------- */

/* metadata point: border-scoped spec row, replaces icon boxes */
.meta-point {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: var(--space-2);
  padding: 0.9rem 0;
  border-top: 1px solid var(--line);
}
.meta-point:last-child { border-bottom: 1px solid var(--line); }
.meta-point__idx { font-family: var(--f-data); font-size: var(--step--1); color: var(--silver-dim); letter-spacing: 0.1em; }
.meta-point__label { font-weight: 600; color: var(--white); font-size: var(--step-0); letter-spacing: 0.01em; }
.meta-point__value { font-family: var(--f-data); font-size: var(--step--1); color: var(--mkc-green); letter-spacing: 0.08em; text-transform: uppercase; text-align: right; }

/* spec frame: 1px border with blueprint corner ticks */
.spec-frame { position: relative; border: 1px solid var(--line); }
.spec-frame::before, .spec-frame::after,
.spec-frame > .tick::before, .spec-frame > .tick::after {
  content: "";
  position: absolute;
  width: 9px; height: 9px;
  border-color: var(--mkc-green);
  border-style: solid;
  border-width: 0;
}
.spec-frame::before        { top: -1px; left: -1px;   border-top-width: 1px; border-left-width: 1px; }
.spec-frame::after         { top: -1px; right: -1px;  border-top-width: 1px; border-right-width: 1px; }
.spec-frame > .tick::before{ bottom: -1px; left: -1px; border-bottom-width: 1px; border-left-width: 1px; }
.spec-frame > .tick::after { bottom: -1px; right: -1px;border-bottom-width: 1px; border-right-width: 1px; }

/* data readout: mono spec table overlay */
.readout {
  background: rgba(11, 15, 18, 0.88);
  backdrop-filter: blur(6px);
  border: 1px solid var(--line);
  font-family: var(--f-data);
  font-size: var(--step--1);
}
.readout__row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 0.55rem 0.9rem;
  border-top: 1px solid var(--line-soft);
  letter-spacing: 0.06em;
}
.readout__row:first-child { border-top: 0; }
.readout__row dt { color: var(--silver-dim); text-transform: uppercase; }
.readout__row dd { color: var(--white); text-align: right; }
.readout__row dd.is-live { color: var(--mkc-green); }

/* ---------- 06 · CONTROLS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  font-family: var(--f-data);
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  padding: 1.05rem 1.8rem;
  border: 1px solid var(--line);
  color: var(--white);
  transition: border-color 0.25s ease, background 0.25s ease, color 0.25s ease;
}
.btn .arrow { transition: transform 0.25s ease; }
.btn:hover .arrow { transform: translateX(4px); }

.btn--primary {
  background: var(--mkc-green);
  border-color: var(--mkc-green);
  color: var(--ink);
  font-weight: 600;
}
.btn--primary:hover { background: var(--white); border-color: var(--white); }

.btn--ghost:hover { border-color: var(--mkc-green); color: var(--mkc-green); }

/* ---------- 07 · NAVIGATION ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 15, 18, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  min-height: 4.25rem;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding-right: var(--space-3);
  border-right: 1px solid var(--line);
}
.nav__mark {
  font-family: var(--f-display);
  font-size: 1.3rem;
  letter-spacing: 0.04em;
  color: var(--white);
  text-transform: uppercase;
}
.nav__mark span { color: var(--mkc-green); }
.nav__logo { height: 2.7rem; width: auto; display: block; }
@media (max-width: 640px) { .nav__logo { height: 2.3rem; } }
.nav__tag { font-family: var(--f-data); font-size: 0.62rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--silver-dim); }

.nav__inner > nav { display: flex; align-items: stretch; }
.nav__links { display: flex; align-items: stretch; }
.nav__links > li { display: flex; position: relative; }
.nav__links a, .nav__links .nav__toggle {
  display: flex;
  align-items: center;
  padding: 0 1.4rem;
  font-family: var(--f-data);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--silver);
  border-left: 1px solid var(--line-soft);
  transition: color 0.2s ease;
}
.nav__links a:hover, .nav__links a[aria-current="page"], .nav__links .nav__toggle:hover { color: var(--mkc-green); }

.nav__menu {
  position: absolute;
  top: 100%; left: 0;
  min-width: 17rem;
  background: var(--ink-2);
  border: 1px solid var(--line);
  display: none;
  flex-direction: column;
}
.nav__links li:hover .nav__menu,
.nav__links li:focus-within .nav__menu { display: flex; }
.nav__menu a {
  border-left: 0;
  border-top: 1px solid var(--line-soft);
  padding: 0.95rem 1.4rem;
  justify-content: space-between;
}
.nav__menu a:first-child { border-top: 0; }
.nav__menu a small { color: var(--silver-dim); letter-spacing: 0.06em; }

.nav__cta { display: flex; align-items: center; gap: 0; }
.nav__cta .btn { border-top: 0; border-bottom: 0; height: 100%; }

.nav__burger { display: none; padding: 0 1rem; border-left: 1px solid var(--line); color: var(--white); font-family: var(--f-data); font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase; }

@media (max-width: 960px) {
  .nav__links, .nav__cta .btn--ghost { display: none; }
  .nav__burger { display: flex; align-items: center; }
  .nav.is-open .nav__links {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    background: var(--ink-2);
    border-bottom: 1px solid var(--line);
    align-items: stretch;
  }
  .nav.is-open .nav__links > li { display: block; }
  .nav.is-open .nav__links a, .nav.is-open .nav__toggle { padding: 1rem var(--gutter); border-left: 0; border-top: 1px solid var(--line-soft); width: 100%; }
  .nav__menu { position: static; border: 0; display: flex; background: var(--ink-3); }
}
@media (max-width: 640px) {
  .nav__cta .btn { padding-inline: 1.1rem; }
  .nav__tag { display: none; }
  .nav__brand { padding-left: var(--gutter); }
  .nav__inner { padding-inline: 0; }
  .nav__burger { padding-inline: var(--gutter); }
}

/* ---------- 08 · FOOTER ---------- */
.footer { border-top: 1px solid var(--line); }
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: var(--space-4);
  padding-block: var(--space-5);
}
.footer h4 { font-family: var(--f-data); font-size: var(--step--1); letter-spacing: 0.2em; text-transform: uppercase; color: var(--silver-dim); margin-bottom: var(--space-2); font-weight: 400; }
.footer li { padding: 0.4rem 0; border-bottom: 1px solid var(--line-soft); }
.footer li a { font-size: var(--step--1); color: var(--silver); transition: color 0.2s; }
.footer li a:hover { color: var(--mkc-green); }
.footer__legal {
  display: flex; justify-content: space-between; gap: var(--space-2); flex-wrap: wrap;
  border-top: 1px solid var(--line);
  padding-block: var(--space-2);
}
@media (max-width: 900px) { .footer__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer__grid { grid-template-columns: 1fr; } }

/* ---------- 09 · COMPARATOR ---------- */
.compare {
  position: relative;
  aspect-ratio: 4 / 3.4;
  overflow: hidden;
  background: var(--ink-2);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}
.compare img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(0.9);
  pointer-events: none;
}
.compare__after { z-index: 2; }
.compare__handle {
  position: absolute; top: 0; bottom: 0; left: 55%;
  width: 1px; background: var(--mkc-green); z-index: 3;
  pointer-events: none;
}
.compare__handle::after {
  content: "◂ ▸";
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--f-data); font-size: 0.65rem; letter-spacing: 0.1em;
  color: var(--ink); background: var(--mkc-green);
  padding: 0.35rem 0.5rem; white-space: nowrap;
}
.compare input[type="range"] {
  position: absolute; inset: 0; z-index: 4;
  width: 100%; height: 100%;
  margin: 0; padding: 0; border: 0;
  opacity: 0; cursor: ew-resize;
  -webkit-appearance: none; appearance: none;
  background: transparent;
}
.compare__flag {
  position: absolute; top: var(--space-2); z-index: 6;
  font-family: var(--f-data); font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase;
  padding: 0.35rem 0.7rem; border: 1px solid var(--line);
  background: rgba(11,15,18,0.8);
}
.compare__flag--before { left: var(--space-2); color: var(--silver); }
.compare__flag--after { right: var(--space-2); color: var(--silver); border-color: var(--line); }
button.compare__flag {
  cursor: pointer;
  transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease;
  -webkit-tap-highlight-color: transparent;
}
button.compare__flag:hover { border-color: var(--mkc-green); }
button.compare__flag.is-major {
  color: var(--mkc-green);
  border-color: var(--mkc-green);
}

@media (max-width: 640px) {
  .compare {
    aspect-ratio: 4 / 3;
    padding-bottom: 3.25rem;
  }
  .compare img,
  .compare__handle {
    bottom: 3.25rem;
  }
  .compare input[type="range"] {
    bottom: 3.25rem;
  }
  button.compare__flag {
    top: auto;
    bottom: 0;
    min-height: 2.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 0.5rem;
    font-size: 0.62rem;
    background: var(--ink-2);
  }
  .compare__flag--before {
    left: 0;
    right: 50%;
    border-right: 0;
    border-radius: 0;
  }
  .compare__flag--after {
    right: 0;
    left: 50%;
    border-left: 1px solid var(--line);
  }
  .compare__handle::after {
    padding: 0.5rem 0.65rem;
    font-size: 0.72rem;
  }
}

/* ---------- 10 · PHOTO LIGHTBOX ---------- */
img.is-zoomable { cursor: zoom-in; }

.lightbox {
  position: fixed; inset: 0; z-index: 100;
  display: flex; flex-direction: column;
  background: rgba(11, 15, 18, 0.96);
  backdrop-filter: blur(8px);
}
.lightbox[hidden] { display: none; }
.lightbox__bar {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-2);
  padding: 0.8rem var(--gutter);
  border-bottom: 1px solid var(--line);
}
.lightbox__bar--foot { border-bottom: 0; border-top: 1px solid var(--line); }
.lightbox__caption {
  color: var(--silver);
  letter-spacing: 0.08em;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.lightbox__hint { flex: 1; text-align: center; }
.lightbox__close, .lightbox__arrow {
  font-family: var(--f-data); font-size: var(--step--1);
  text-transform: uppercase; letter-spacing: 0.14em;
  border: 1px solid var(--line); background: var(--ink-2);
  color: var(--white);
  padding: 0.55rem 1rem;
  flex-shrink: 0;
  transition: border-color 0.25s ease, color 0.25s ease;
}
.lightbox__close:hover, .lightbox__arrow:hover { border-color: var(--mkc-green); color: var(--mkc-green); }
.lightbox__stage {
  flex: 1; min-height: 0;
  overflow: auto;
  display: flex; align-items: center; justify-content: center;
  padding: var(--space-2);
}
.lightbox__img {
  max-width: 100%; max-height: 100%;
  width: auto; height: auto;
  object-fit: contain;
  border: 1px solid var(--line);
  cursor: zoom-in;
}
.lightbox.is-zoomed .lightbox__stage { align-items: flex-start; justify-content: flex-start; }
.lightbox.is-zoomed .lightbox__img {
  max-width: none; max-height: none;
  width: 170vmin;
  cursor: zoom-out;
}
@media (max-width: 640px) {
  .lightbox__hint { display: none; }
  .lightbox__bar--foot { justify-content: space-between; }
}

/* ---------- 11 · MOTION ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }