/* ==========================================================================
   THE DOC MARTINS — stylesheet
   Industrial-editorial-heritage. Oxblood + antique gold on matte black.
   ========================================================================== */

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

:root {
  /* Palette */
  --ink: #0A0A0A;
  --leather: #1A1613;
  --leather-lift: #221C18;
  --cream: #F5EEDC;
  --bone: #EDE4CE;
  --dust: #C9BFA6;
  --oxblood: #6B1320;
  --oxblood-deep: #4A0B17;
  --gold: #C9A54A;
  --gold-bright: #E3BD5C;
  --rust: #8B3A1F;

  /* Type */
  --font-display: "Archivo Black", "Arial Black", sans-serif;
  --font-body: "Space Grotesk", system-ui, -apple-system, sans-serif;
  --font-serif: "Instrument Serif", "Cormorant Garamond", Georgia, serif;
  --font-mono: "JetBrains Mono", "Courier New", monospace;

  /* Scale (major third, ~1.25) */
  --step--1: clamp(0.875rem, 0.83rem + 0.22vw, 1rem);
  --step-0:  clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --step-1:  clamp(1.25rem, 1.16rem + 0.45vw, 1.5rem);
  --step-2:  clamp(1.563rem, 1.43rem + 0.65vw, 2rem);
  --step-3:  clamp(1.953rem, 1.75rem + 1vw, 2.75rem);
  --step-4:  clamp(2.441rem, 2.1rem + 1.7vw, 4rem);
  --step-5:  clamp(3.052rem, 2.5rem + 2.8vw, 6rem);
  --step-6:  clamp(4rem, 3rem + 5vw, 10rem);

  /* Spacing (8pt grid) */
  --s-1: 0.5rem;
  --s-2: 1rem;
  --s-3: 1.5rem;
  --s-4: 2rem;
  --s-5: 3rem;
  --s-6: 4rem;
  --s-7: 6rem;
  --s-8: 8rem;

  /* Motion */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.55;
  color: var(--bone);
  background: var(--ink);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Leather-grain noise overlay (SVG as data URI) */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.06;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='300' height='300'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='0.7'/></svg>");
}

/* ---------- Links + buttons ---------- */
a { color: inherit; text-decoration: none; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.85em 1.6em;
  font-family: var(--font-body);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 2px solid var(--cream);
  color: var(--cream);
  background: transparent;
  cursor: pointer;
  transition: all 0.2s var(--ease);
  position: relative;
}
.btn:hover {
  background: var(--cream);
  color: var(--ink);
  transform: translateY(-1px);
}
.btn--oxblood {
  background: var(--oxblood);
  border-color: var(--oxblood);
  color: var(--cream);
}
.btn--oxblood:hover {
  background: var(--rust);
  border-color: var(--rust);
}
.btn--gold {
  border-color: var(--gold);
  color: var(--gold);
}
.btn--gold:hover {
  background: var(--gold);
  color: var(--ink);
}
.btn__arrow {
  display: inline-block;
  transition: transform 0.2s var(--ease);
}
.btn:hover .btn__arrow { transform: translateX(4px); }

/* ---------- Welt stitching (gold dashed underline) ---------- */
.welt {
  display: inline-block;
  padding-bottom: 0.35em;
  border-bottom: 2px dashed var(--gold);
}
.welt--heavy {
  border-bottom-width: 3px;
}

/* ---------- EST tag ---------- */
.est {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.45em 0.9em;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  background: var(--oxblood);
  color: var(--gold-bright);
  border: 1px solid var(--gold);
  transform: rotate(-1.5deg);
  box-shadow: 2px 2px 0 var(--ink);
}

/* ---------- Diagonal stitch divider ---------- */
.stitch-divider {
  height: 40px;
  width: 100%;
  position: relative;
  margin: var(--s-6) 0;
}
.stitch-divider::before {
  content: "";
  position: absolute;
  inset: 50% 0 auto 0;
  height: 2px;
  background-image: repeating-linear-gradient(
    90deg,
    var(--gold) 0,
    var(--gold) 12px,
    transparent 12px,
    transparent 22px
  );
  transform: rotate(-0.8deg);
  transform-origin: center;
}

/* ---------- Top nav bar ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201, 165, 74, 0.15);
}
.nav__inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
}
.nav__brand {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.12em;
  color: var(--cream);
}
.nav__brand .nav__amp {
  color: var(--gold);
  margin: 0 0.25em;
}
.nav__links {
  display: flex;
  gap: var(--s-4);
  list-style: none;
}
.nav__links a {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dust);
  transition: color 0.2s;
  padding: 0.3em 0;
  border-bottom: 1px dashed transparent;
}
.nav__links a:hover,
.nav__links a.is-active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}
@media (max-width: 640px) {
  .nav__inner { padding: 0.8rem 1rem; }
  .nav__links { gap: var(--s-2); }
  .nav__links a { font-size: 0.72rem; }
}

/* ==========================================================================
   HERO — shared top
   ========================================================================== */
.hero {
  position: relative;
  padding: clamp(3rem, 10vh, 7rem) 2rem clamp(3rem, 8vh, 5rem);
  text-align: center;
  background:
    radial-gradient(ellipse at top, rgba(107, 19, 32, 0.25) 0%, transparent 60%),
    var(--ink);
  overflow: hidden;
}
.hero__eyebrow {
  margin-bottom: var(--s-3);
}
.hero__title {
  font-family: var(--font-display);
  font-size: var(--step-6);
  line-height: 0.92;
  letter-spacing: -0.02em;
  color: var(--cream);
  text-transform: uppercase;
  position: relative;
}
.hero__title .amp {
  color: var(--oxblood);
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  text-transform: lowercase;
  letter-spacing: 0;
  font-size: 0.8em;
  margin: 0 0.15em;
  vertical-align: 0.05em;
}
.hero__welt {
  display: block;
  margin: var(--s-4) auto 0;
  width: clamp(120px, 18vw, 260px);
  height: 3px;
  background-image: repeating-linear-gradient(
    90deg,
    var(--gold) 0,
    var(--gold) 14px,
    transparent 14px,
    transparent 24px
  );
}
.hero__subline {
  max-width: 38ch;
  margin: var(--s-4) auto 0;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--step-2);
  line-height: 1.3;
  color: var(--bone);
}
.hero__meta {
  margin-top: var(--s-4);
  display: flex;
  gap: var(--s-3);
  justify-content: center;
  flex-wrap: wrap;
  align-items: center;
}
.hero__badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dust);
}
.hero__badge::before {
  content: "■";
  color: var(--gold);
  margin-right: 0.6em;
  font-size: 0.6em;
  vertical-align: 0.25em;
}

/* ==========================================================================
   SPLIT — Charles left / Marie right
   ========================================================================== */
.split {
  display: grid;
  grid-template-columns: 1fr 4px 1fr;
  min-height: 75vh;
  position: relative;
  isolation: isolate;
}
.split__divider {
  background-image: repeating-linear-gradient(
    180deg,
    var(--gold) 0,
    var(--gold) 14px,
    transparent 14px,
    transparent 24px
  );
  position: relative;
}
.split__divider::before,
.split__divider::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  background: var(--oxblood);
  border: 2px solid var(--gold);
  border-radius: 50%;
}
.split__divider::before { top: 8%; }
.split__divider::after { bottom: 8%; }

.panel {
  position: relative;
  padding: clamp(2rem, 5vh, 4rem) clamp(1.5rem, 4vw, 3.5rem);
  background: var(--ink);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--s-3);
  transition: background 0.4s var(--ease);
  overflow: hidden;
}
.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(107, 19, 32, 0) 0%, rgba(107, 19, 32, 0.12) 100%);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  z-index: 0;
}
.panel:hover::before { opacity: 1; }
.panel > * { position: relative; z-index: 1; }

.panel__frame {
  position: relative;
  width: clamp(200px, 22vw, 320px);
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  margin-top: var(--s-3);
}
.panel__frame::before,
.panel__frame::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.panel__frame::before {
  inset: -6px;
  border: 2px dashed var(--gold);
  animation: stitch-rotate 120s linear infinite;
}
.panel__frame::after {
  inset: -18px;
  border: 1px solid rgba(201, 165, 74, 0.2);
}
@keyframes stitch-rotate {
  to { transform: rotate(360deg); }
}
.panel__portrait {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 28%;
  background: var(--leather);
  box-shadow:
    inset 0 0 0 3px var(--ink),
    inset 0 -20px 40px rgba(0, 0, 0, 0.5),
    0 12px 40px rgba(0, 0, 0, 0.6);
  transition: transform 0.5s var(--ease);
}
.panel:hover .panel__portrait { transform: scale(1.03); }

.panel__name {
  font-family: var(--font-display);
  font-size: var(--step-4);
  line-height: 1;
  letter-spacing: 0.005em;
  color: var(--cream);
  text-transform: uppercase;
  margin-top: var(--s-3);
}
.panel__credential {
  display: inline-block;
  margin-top: 0.55em;
  padding: 0.3em 0.8em;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--gold);
  border: 1px solid var(--gold);
  text-transform: uppercase;
}
.panel__title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dust);
  max-width: 32ch;
}
.panel__bio {
  max-width: 36ch;
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--bone);
}
.panel__cta {
  margin-top: var(--s-3);
  display: flex;
  gap: var(--s-2);
  flex-wrap: wrap;
  justify-content: center;
}

/* Responsive: stack vertically */
@media (max-width: 860px) {
  .split { grid-template-columns: 1fr; }
  .split__divider {
    height: 4px;
    width: 100%;
    background-image: repeating-linear-gradient(
      90deg,
      var(--gold) 0,
      var(--gold) 14px,
      transparent 14px,
      transparent 24px
    );
  }
  .split__divider::before,
  .split__divider::after { display: none; }
}

/* ==========================================================================
   TOGETHER — joint footer band
   ========================================================================== */
.together {
  background: var(--oxblood);
  color: var(--cream);
  padding: clamp(3rem, 8vh, 5rem) 2rem;
  text-align: center;
  position: relative;
  border-top: 3px dashed var(--gold);
  border-bottom: 3px dashed var(--gold);
}
.together__inner { max-width: 760px; margin: 0 auto; }
.together__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold-bright);
  margin-bottom: var(--s-3);
}
.together__quote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--step-2);
  line-height: 1.35;
  color: var(--cream);
}
.together__sig {
  margin-top: var(--s-3);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-bright);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.foot {
  background: var(--ink);
  padding: var(--s-5) 2rem var(--s-3);
  text-align: center;
  border-top: 1px solid rgba(201, 165, 74, 0.2);
}
.foot__grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--s-4);
  text-align: left;
  margin-bottom: var(--s-4);
}
.foot__col h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--s-2);
}
.foot__col a,
.foot__col li {
  display: block;
  font-size: 0.88rem;
  color: var(--dust);
  padding: 0.25em 0;
  transition: color 0.2s;
  list-style: none;
}
.foot__col a:hover { color: var(--cream); }

.foot__base {
  padding-top: var(--s-3);
  border-top: 1px dashed rgba(201, 165, 74, 0.3);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dust);
}
.foot__base .amp { color: var(--gold); }

/* ==========================================================================
   DEEP PAGES (/charles, /marie)
   ========================================================================== */
.deep {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--s-5) 2rem var(--s-7);
}
.deep__hero {
  display: grid;
  grid-template-columns: minmax(220px, 280px) 1fr;
  gap: var(--s-5);
  align-items: center;
  padding: var(--s-5) 0;
}
.deep__frame {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
}
.deep__frame::before {
  content: "";
  position: absolute;
  inset: -8px;
  border: 2px dashed var(--gold);
  border-radius: 50%;
}
.deep__portrait {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 28%;
  background: var(--leather);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
}
.deep__header h1 {
  font-family: var(--font-display);
  font-size: var(--step-5);
  line-height: 0.95;
  color: var(--cream);
  text-transform: uppercase;
  letter-spacing: -0.01em;
}
.deep__credential {
  display: inline-block;
  margin-top: 0.6em;
  padding: 0.3em 0.9em;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--gold);
  border: 1px solid var(--gold);
  text-transform: uppercase;
}
.deep__header .role {
  margin-top: var(--s-3);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}
.deep__header .bio {
  margin-top: var(--s-3);
  font-size: var(--step-0);
  line-height: 1.7;
  color: var(--bone);
  max-width: 60ch;
}

.deep__ctas {
  margin-top: var(--s-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
}

@media (max-width: 720px) {
  .deep__hero {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--s-3);
  }
  .deep__frame { max-width: 240px; margin: 0 auto; }
  .deep__header .bio { margin-left: auto; margin-right: auto; }
  .deep__ctas { justify-content: center; }
}

.deep__section {
  margin-top: var(--s-6);
}
.deep__section h2 {
  font-family: var(--font-display);
  font-size: var(--step-3);
  line-height: 1.05;
  color: var(--cream);
  text-transform: uppercase;
  letter-spacing: -0.005em;
  margin-bottom: var(--s-4);
}
.deep__section h2 .welt { padding-bottom: 0.4em; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--s-3);
}
.card {
  background: var(--leather);
  padding: var(--s-3);
  border: 1px solid rgba(201, 165, 74, 0.2);
  position: relative;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.card:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}
.card__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.4em;
}
.card h3 {
  font-family: var(--font-display);
  font-size: var(--step-1);
  line-height: 1.2;
  color: var(--cream);
  margin-bottom: 0.5em;
  text-transform: uppercase;
  letter-spacing: -0.005em;
}
.card p {
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--bone);
}
.card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  margin-top: var(--s-2);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  border-bottom: 1px dashed var(--gold);
  padding-bottom: 2px;
  width: fit-content;
}
.card__link:hover { color: var(--gold-bright); }

/* PDF preview embed */
.pdf-frame {
  background: var(--leather);
  padding: var(--s-2);
  border: 1px solid rgba(201, 165, 74, 0.25);
  margin-top: var(--s-3);
}
.pdf-frame iframe {
  width: 100%;
  height: 720px;
  border: none;
  display: block;
  background: var(--cream);
}
.pdf-frame__label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5em 0.8em 0.9em;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
}

/* ==========================================================================
   Scroll reveal
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ==========================================================================
   Focus
   ========================================================================== */
a:focus-visible, button:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* Skip link */
.skip {
  position: absolute;
  left: -9999px;
  top: 0.5rem;
  background: var(--gold);
  color: var(--ink);
  padding: 0.5em 1em;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  z-index: 100;
}
.skip:focus { left: 0.5rem; }