@import url("https://fonts.googleapis.com/css2?family=Bebas+Neue&family=DM+Mono:wght@300;400&family=Inter:wght@300;400&family=Outfit:wght@300;400&display=swap");

@layer reset, tokens, base, layout, cube, ui, cards, reveal, aurora, modal, responsive;

/* ── Reset ──────────────────────────────────────────────────────── */
@layer reset {
  *, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  a { text-decoration: none; }
}

/* ── Design tokens ──────────────────────────────────────────────── */
@layer tokens {
  :root {
    color-scheme: dark;

    --base-hue: 280;
    --color-1: oklch(0.65 0.25 var(--base-hue));
    --color-2: oklch(0.65 0.25 calc(var(--base-hue) + 120));
    --color-3: oklch(0.65 0.25 calc(var(--base-hue) + 240));

    --bg:          #050505;
    --fg:          #ffffff;
    --muted:       rgba(255, 255, 255, 0.72);
    --accent:      var(--color-1);
    --card-bg:     oklch(0.13 0.04 var(--base-hue) / 0.22);
    --card-border: oklch(0.82 0.08 var(--base-hue) / 0.38);

    --font-display:    "Bebas Neue", sans-serif;
    --font-mono:       "DM Mono", monospace;
    --hairline:        0.0625rem;
    --ui-inset:        2rem;
    --nav-x:           calc(var(--ui-inset) + 0.125rem);
    --reveal-offset:   0.625rem;
    --reveal-duration: 0.5s;
    --z-ui:            10;
    --z-modal:         100;
  }
}

/* ── Base ───────────────────────────────────────────────────────── */
@layer base {
  html { color-scheme: dark; }

  body {
    background: radial-gradient(
      ellipse at center,
      oklch(0.13 0.06 var(--base-hue)) 0%,
      #050505 68%
    );
    color: var(--fg);
    font-family: var(--font-mono);
    overflow-x: hidden;
  }
}

/* ── Layout ─────────────────────────────────────────────────────── */
@layer layout {
  #scene {
    position: fixed;
    inset: 0;
    z-index: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 1100px;
    pointer-events: none;
  }

  #scroll_container {
    position: relative;
    z-index: 1;
  }

  section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 6rem calc(5rem + var(--ui-inset)) 6rem 5rem;
  }
}

/* ── Cube ───────────────────────────────────────────────────────── */
@layer cube {
  #cube {
    --s: min(74vw, 74vh, 560px);
    width: var(--s);
    height: var(--s);
    position: relative;
    transform-style: preserve-3d;
    transform: rotateX(90deg) rotateY(0deg);
    will-change: transform;
  }

  .face {
    position: absolute;
    inset: 0;
    overflow: hidden;
    backface-visibility: hidden;
    background:
      repeating-linear-gradient(0deg, rgba(255,255,255,0.02) 0, rgba(255,255,255,0.02) 1px, transparent 1px, transparent 48px),
      repeating-linear-gradient(90deg, rgba(255,255,255,0.02) 0, rgba(255,255,255,0.02) 1px, transparent 1px, transparent 48px),
      #14100d;

    img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    &:has(img) .face-ph { display: none; }
  }

  .face-ph {
    position: absolute;
    bottom: 1.5rem;
    left: 1.75rem;
    font-family: var(--font-display);
    font-size: clamp(2rem, 8vw, 5rem);
    letter-spacing: 0.04em;
    color: rgba(255,255,255,0.06);
    pointer-events: none;
    user-select: none;
  }

  .face[data-face="front"]  { transform: translateZ(calc(var(--s) / 2)); }
  .face[data-face="back"]   { transform: rotateY(180deg) translateZ(calc(var(--s) / 2)); }
  .face[data-face="right"]  { transform: rotateY(90deg) translateZ(calc(var(--s) / 2)); }
  .face[data-face="left"]   { transform: rotateY(-90deg) translateZ(calc(var(--s) / 2)); }
  .face[data-face="top"]    { transform: rotateX(-90deg) translateZ(calc(var(--s) / 2)); }
  .face[data-face="bottom"] { transform: rotateX(90deg) translateZ(calc(var(--s) / 2)); }
}

/* ── UI chrome ──────────────────────────────────────────────────── */
@layer ui {
  #hud {
    display: none;
    position: fixed;
    top: var(--ui-inset);
    right: var(--ui-inset);
    z-index: var(--z-ui);
    text-align: right;
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    color: var(--muted);
    text-transform: uppercase;

    .progress-bar { display: none; }
    .progress-fill { display: none; }

    .scene-label {
      font-size: 0.6rem;
      color: var(--accent);
      margin-block-start: 0.4rem;
    }
  }

  #scene_strip {
    position: fixed;
    left: var(--nav-x);
    top: 50%;
    translate: -50% -50%;
    z-index: var(--z-ui);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .scene-dot {
    position: relative;
    display: block;
    width: 0.25rem;
    height: 0.25rem;
    border-radius: 50%;
    background: var(--muted);
    transition: background 0.3s, scale 0.3s, box-shadow 0.3s;
    cursor: pointer;

    &::before { content: ""; position: absolute; inset: -0.2rem; }

    &.active {
      background: var(--accent);
      scale: 1.8;
      box-shadow: 0 0 10px var(--color-1);
    }
  }

  #face_caption {
    position: fixed;
    bottom: var(--ui-inset);
    left: 50%;
    translate: -50% 0;
    z-index: var(--z-ui);
    text-align: center;
    user-select: none;
  }

  #face_caption_num {
    font-size: 0.58rem;
    letter-spacing: 0.28em;
    color: var(--accent);
    text-transform: uppercase;
    margin-block-end: 0.15rem;
  }

  #face_caption_name {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 5vw, 3.5rem);
    letter-spacing: 0.08em;
    color: #ffffff;
    opacity: 1;
    line-height: 1;
    transition: opacity 0.3s, color 0.3s;

    /* When JS adds data-is-link, becomes a bright white clickable CTA */
    &[data-is-link] {
      color: #ffffff;
      opacity: 1;
      cursor: pointer;
      text-decoration: none;

      &:hover {
        text-shadow: 0 0 28px rgba(255,255,255,0.55);
      }
    }
  }

  /* Credit — right rail vertical text, now a button */
  #credit {
    display: none;
    position: fixed;
    right: var(--ui-inset);
    top: 50%;
    transform: translateY(-50%) rotate(-90deg);
    transform-origin: right center;
    z-index: var(--z-ui);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
  }

  #credit_trigger {
    background: none;
    border: none;
    color: var(--muted);
    font-family: inherit;
    font-size: inherit;
    letter-spacing: inherit;
    text-transform: inherit;
    cursor: pointer;
    padding: 0;
    transition: color 0.25s;

    &:hover { color: #ffffff; }
  }

  /* ── Top header nav buttons ── */
  @keyframes nav-pulse {
    0%, 100% { box-shadow: 0 4px 24px rgba(0,0,0,0.3), inset 0 0 0 0.5px rgba(255,255,255,0.08); }
    50%       { box-shadow: 0 4px 32px rgba(0,0,0,0.4), inset 0 0 0 0.5px rgba(255,255,255,0.18); }
  }

  #top_nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-ui);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem var(--ui-inset);
    opacity: 1;
    pointer-events: auto;
    transition: opacity 0.5s ease;

    &.hidden {
      opacity: 0;
      pointer-events: none;
    }
  }

  #top_nav_logo {
    font-family: var(--font-display);
    font-size: 1.4rem;
    letter-spacing: 0.04em;
    line-height: 1;
  }

  #top_nav_links {
    display: flex;
    align-items: center;
    gap: 0.6rem;
  }

  .top-nav-btn {
    display: inline-block;
    padding: 0.55rem 1.4rem;
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(12px) saturate(1.4);
    cursor: pointer;
    -webkit-backdrop-filter: blur(12px) saturate(1.4);
    border: 0.5px solid rgba(255,255,255,0.3);
    color: #ffffff;
    font-family: "Outfit", sans-serif;
    font-weight: 300;
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-decoration: none;
    white-space: nowrap;
    animation: nav-pulse 3s ease-in-out infinite;
    transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;

    &:nth-child(2) { animation-delay: 1s; }
    &:nth-child(3) { animation-delay: 2s; }

    &:hover {
      background: rgba(255,255,255,0.18);
      border-color: rgba(255,255,255,0.7);
      box-shadow: 0 0 24px rgba(255,255,255,0.2), inset 0 0 12px rgba(255,255,255,0.08);
      animation: none;
    }
  }

}

/* ── Hamburger + mobile menu (flat selectors, no nesting) ───────── */
.ham-bar {
  display: none;
}

#nav_hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 2.2rem;
  height: 2.2rem;
  background: rgba(255,255,255,0.06);
  border: 0.5px solid rgba(255,255,255,0.3);
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
}

#nav_hamburger .ham-bar {
  display: block;
  width: 1rem;
  height: 1.5px;
  background: #fff;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

#nav_hamburger[aria-expanded="true"] .ham-bar:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
#nav_hamburger[aria-expanded="true"] .ham-bar:nth-child(2) { opacity: 0; }
#nav_hamburger[aria-expanded="true"] .ham-bar:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

#nav_mobile_menu {
  display: none;
  position: fixed;
  top: 3.25rem;
  left: 0;
  right: 0;
  z-index: 90;
  flex-direction: column;
  padding: 0.5rem 0 0.75rem;
  background: rgba(5,5,5,0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 0.5px solid rgba(255,255,255,0.08);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

#nav_mobile_menu.open {
  opacity: 1;
  transform: translateY(0);
}

#nav_mobile_menu .top-nav-btn {
  width: 100%;
  text-align: center;
  background: transparent;
  border: none;
  border-bottom: 0.5px solid rgba(255,255,255,0.06);
  padding: 1rem 1.5rem;
  font-family: "Outfit", sans-serif;
  font-weight: 300;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #ffffff;
  animation: none;
  transition: background 0.2s ease, letter-spacing 0.2s ease;
}

#nav_mobile_menu .top-nav-btn:last-child {
  border-bottom: none;
}

#nav_mobile_menu .top-nav-btn:hover {
  background: rgba(255,255,255,0.05);
  letter-spacing: 0.22em;
  box-shadow: none;
}

/* ── Cards ──────────────────────────────────────────────────────── */
@layer cards {
  .text-card {
    max-width: 23.75rem;
    padding: 2.25rem 2rem;
    background: var(--card-bg);
    border-left: var(--hairline) solid var(--card-border);
    backdrop-filter: blur(6px) saturate(120%);
    -webkit-backdrop-filter: blur(6px) saturate(120%);
    overflow: hidden;
    box-shadow: 0 24px 50px oklch(0.06 0.06 var(--base-hue) / 0.65);
    transition: background 0.8s ease, border-color 0.8s ease, box-shadow 0.8s ease;

    &.right {
      margin-inline-start: auto;
      border-left: none;
      border-right: var(--hairline) solid var(--card-border);
      text-align: right;

      .h-line { transform-origin: right; margin-inline-start: auto; }
    }
  }

  .tag {
    font-size: 0.6rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--accent);
    margin-block-end: 1.1rem;
    transition: color 1s ease;
  }

  :where(h1, h2) {
    font-family: var(--font-display);
    font-weight: 400;
    letter-spacing: 0.03em;
    line-height: 0.92;
  }

  h1 { font-size: clamp(3rem, 8vw, 6.5rem); }
  h2 { font-size: clamp(2.2rem, 5vw, 4rem); }

  .body-text {
    font-family: "Inter", sans-serif;
    font-weight: 300;
    font-size: 0.78rem;
    line-height: 1.8;
    color: #ffffff;
    margin-block-start: 1.25rem;
  }

  .stat-row { display: flex; gap: 2.5rem; margin-block-start: 2rem; flex-wrap: wrap; }

  .stat { display: flex; flex-direction: column; gap: 0.15rem; }

  .stat-num {
    font-family: var(--font-display);
    font-size: 2.2rem;
    color: var(--accent);
    text-shadow: 0 0 24px var(--color-1);
    line-height: 1;
    transition: color 1s ease, text-shadow 1s ease;
  }

  .stat-label {
    font-size: 0.58rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted);
  }

  .h-line {
    width: 3.125rem;
    height: var(--hairline);
    background: var(--accent);
    box-shadow: 0 0 8px var(--color-1);
    margin-block-end: 1.2rem;
    transform-origin: left;
    transition: background 1s ease, box-shadow 1s ease;
  }

  .cta-row {
    display: none;
  }

  .text-card.right .cta-row { justify-content: flex-end; }


  .cta {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.55rem 1.4rem;
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(12px) saturate(1.4);
    -webkit-backdrop-filter: blur(12px) saturate(1.4);
    border: 0.5px solid rgba(255,255,255,0.3);
    color: #ffffff;
    font-family: "Outfit", sans-serif;
    font-weight: 300;
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;

    &:hover {
      background: rgba(255,255,255,0.18);
      border-color: rgba(255,255,255,0.7);
      box-shadow: 0 0 24px rgba(255,255,255,0.2), inset 0 0 12px rgba(255,255,255,0.08);
    }
    svg { width: 0.6875rem; height: 0.6875rem; }
  }

  .cta-back {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.55rem 1.4rem;
    background: rgba(255,255,255,0.03);
    backdrop-filter: blur(12px) saturate(1.4);
    -webkit-backdrop-filter: blur(12px) saturate(1.4);
    border: 0.5px solid rgba(255,255,255,0.15);
    color: #ffffff;
    font-family: "Outfit", sans-serif;
    font-weight: 300;
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;

    &:hover {
      background: rgba(255,255,255,0.1);
      border-color: rgba(255,255,255,0.45);
      box-shadow: 0 0 18px rgba(255,255,255,0.12), inset 0 0 8px rgba(255,255,255,0.05);
    }
    svg { width: 0.6875rem; height: 0.6875rem; }
  }
}

/* ── Reveal ─────────────────────────────────────────────────────── */
@layer reveal {
  :is(.tag, h1, h2, .body-text, .stat-row, .cta, .cta-back) {
    opacity: 0;
    translate: 0 var(--reveal-offset);
  }

  :is(h1, h2) { translate: 0 1.125rem; transition: opacity var(--reveal-duration) ease 0.08s, translate var(--reveal-duration) ease 0.08s; }
  .tag         { transition: opacity var(--reveal-duration) ease, translate var(--reveal-duration) ease; }
  .body-text   { transition: opacity var(--reveal-duration) ease 0.2s, translate var(--reveal-duration) ease 0.2s; }
  .stat-row    { transition: opacity var(--reveal-duration) ease 0.3s, translate var(--reveal-duration) ease 0.3s; }

  :is(.cta, .cta-back) {
    transition: opacity var(--reveal-duration) ease 0.35s, translate var(--reveal-duration) ease 0.35s, background 0.2s, color 0.2s, border-color 0.2s;
  }

  .h-line { opacity: 0; scale: 0 1; transition: opacity 0.4s ease, scale 0.4s ease; }

  :is(.tag, h1, h2, .body-text, .stat-row, .cta, .cta-back).visible { opacity: 1; translate: 0 0; }
  .h-line.visible { opacity: 1; scale: 1 1; }
}

/* ── Aurora ─────────────────────────────────────────────────────── */
@layer aurora {
  @property --base-hue {
    syntax: "<number>";
    inherits: true;
    initial-value: 280;
  }

  html:has(#vibe-cyber:checked)    { --base-hue: 280; }
  html:has(#vibe-ethereal:checked) { --base-hue: 160; }
  html:has(#vibe-inferno:checked)  { --base-hue: 35;  }

  html { transition: --base-hue 1s ease; }

  #aurora_mesh {
    position: fixed;
    inset: 0;
    z-index: 0;
    filter: blur(80px);
    opacity: 0.82;
    pointer-events: none;
  }

  .orb {
    position: absolute;
    width: 50vmin;
    height: 50vmin;
    border-radius: 50%;
    top: 50%;
    left: 50%;
    translate: -50% -50%;
    mix-blend-mode: screen;
  }

  .orb-1 { background: oklch(0.65 0.25 var(--base-hue)); animation: orb-drift 12s ease-in-out infinite alternate; }
  .orb-2 { background: oklch(0.65 0.25 calc(var(--base-hue) + 120)); animation: orb-drift 16s ease-in-out infinite alternate-reverse; }
  .orb-3 { background: oklch(0.65 0.25 calc(var(--base-hue) + 240)); animation: orb-drift 20s linear infinite; }

  @keyframes orb-drift {
    0%   { transform: translate(calc(sin(0deg)   * 20vw), calc(cos(0deg)   * 20vh)) scale(1);   }
    33%  { transform: translate(calc(sin(120deg) * 25vw), calc(cos(120deg) * 15vh)) scale(1.5); }
    66%  { transform: translate(calc(sin(240deg) * 15vw), calc(cos(240deg) * 25vh)) scale(0.8); }
    100% { transform: translate(calc(sin(360deg) * 20vw), calc(cos(360deg) * 20vh)) scale(1);   }
  }

  #vibe_panel {
    position: fixed;
    bottom: var(--ui-inset);
    left: var(--nav-x);
    translate: -50% 0;
    z-index: var(--z-ui);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.7rem;
  }

  .vibe-panel-label {
    font-family: var(--font-mono);
    font-size: 0.48rem;
    letter-spacing: 0.22em;
    color: rgba(255,255,255,0.3);
    text-transform: uppercase;
    margin-block-end: 0.1rem;
  }

  .vibe-node {
    display: block;
    width: 0.9rem;
    height: 0.9rem;
    border-radius: 50%;
    background: oklch(0.65 0.25 var(--vibe-hue, 280));
    border: 1.5px solid rgba(255,255,255,0.15);
    cursor: pointer;
    position: relative;
    transition: transform 0.25s ease, border-color 0.25s, box-shadow 0.25s;

    &::before { content: ""; position: absolute; inset: -0.65rem; }

    &::after {
      content: attr(data-label);
      position: absolute;
      top: 50%;
      left: calc(100% + 0.85rem);
      translate: 0 -50%;
      font-family: var(--font-mono);
      font-size: 0.56rem;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      color: rgba(255,255,255,0.45);
      white-space: nowrap;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.2s;
    }

    &:hover { transform: scale(1.35); border-color: rgba(255,255,255,0.7); &::after { opacity: 1; } }
  }

  html:has(#vibe-cyber:checked)    .vibe-node[for="vibe-cyber"],
  html:has(#vibe-ethereal:checked) .vibe-node[for="vibe-ethereal"],
  html:has(#vibe-inferno:checked)  .vibe-node[for="vibe-inferno"] {
    transform: scale(1.45);
    border-color: rgba(255,255,255,0.9);
    box-shadow: 0 0 12px rgba(255,255,255,0.5), 0 0 24px oklch(0.65 0.25 var(--vibe-hue, 280) / 0.6);
  }
}


/* ══════════════════════════════════════════════════════════════════
   MODAL
   ══════════════════════════════════════════════════════════════════ */
@layer modal {
  :root {
    --m-speed:    0.38s;
    --m-left-bg:  oklch(0.08 0.04 var(--base-hue) / 0.99);
    --m-right-bg: oklch(0.13 0.02 var(--base-hue) / 0.99);
    --m-border:   var(--card-border);
    --m-field:    oklch(0.10 0.02 var(--base-hue));
    --m-dim:      rgba(255,255,255,0.42);
  }

  /* ── Backdrop ────────────────────────────────────────────────── */
  #contact_backdrop {
    position: fixed; inset: 0; z-index: calc(var(--z-modal) - 1);
    background: rgba(5,5,5,0.82);
    backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
    opacity: 0; pointer-events: none;
    transition: opacity var(--m-speed) ease;
  }

  /* ── Overlay — full-screen flex, centres the panel ───────────── */
  #contact_modal {
    position: fixed; inset: 0; z-index: var(--z-modal);
    display: flex; align-items: center; justify-content: center;
    padding: 1.5rem;
    opacity: 0; pointer-events: none;
    transition: opacity var(--m-speed) ease;
  }

  html.modal-open #contact_backdrop { opacity: 1; pointer-events: auto; }
  html.modal-open #contact_modal    { opacity: 1; pointer-events: auto; }
  html.modal-open body              { overflow: hidden; }

  /* ── Panel ───────────────────────────────────────────────────── */
  #modal_panel {
    width: 100%;
    max-width: 560px;
    max-height: 90dvh;
    display: flex;
    flex-direction: column;
    background: oklch(0.10 0.03 var(--base-hue) / 0.97);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 0.5px solid rgba(255,255,255,0.12);
    box-shadow: 0 32px 80px rgba(0,0,0,0.8), 0 0 60px oklch(0.65 0.25 var(--base-hue) / 0.08);
    overflow: hidden;
    scale: 0.96;
    transition: scale var(--m-speed) cubic-bezier(0.22,1,0.36,1);
    position: relative;
  }

  html.modal-open #modal_panel { scale: 1; }

  /* ── Header ──────────────────────────────────────────────────── */
  #modal_header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.4rem 1.75rem;
    border-bottom: 0.5px solid rgba(255,255,255,0.08);
    flex-shrink: 0;
  }

  #modal_logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 0.04em;
    line-height: 1;
  }
  .ml-frost { color: var(--accent); transition: color 1s; }
  .ml-dot   { color: #e31b23; }
  .ml-ca    { color: #ffffff; }

  #modal_close {
    width: 2rem; height: 2rem;
    background: rgba(255,255,255,0.04);
    border: 0.5px solid rgba(255,255,255,0.12);
    border-radius: 50%;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    color: rgba(255,255,255,0.5);
    transition: background 0.2s, border-color 0.2s, color 0.2s;
    &:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.35); color: #fff; }
    svg { width: 0.6rem; height: 0.6rem; }
  }

  /* ── Body ────────────────────────────────────────────────────── */
  #modal_body {
    padding: 2rem 1.75rem 2rem;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.1) transparent;
    flex: 1;
    position: relative;
  }

  #modal_title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    letter-spacing: 0.04em;
    line-height: 0.95;
    color: #ffffff;
    margin-block-end: 0.6rem;
  }

  #modal_sub {
    font-family: "Outfit", sans-serif;
    font-weight: 300;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.5);
    letter-spacing: 0.02em;
    margin-block-end: 1.75rem;
  }

  /* ── Form ─────────────────────────────────────────────────────── */
  #contact_form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  .ff-field label {
    font-family: "Outfit", sans-serif;
    font-weight: 300;
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.4);
    margin-block-end: 0.4rem;
    display: block;
  }

  .ff-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  .ff-field { display: flex; flex-direction: column; }

  #contact_form select,
  #contact_form input[type="text"],
  #contact_form input[type="email"],
  #contact_form input[type="tel"],
  #contact_form textarea {
    width: 100%;
    font-family: "Outfit", sans-serif;
    font-weight: 300;
    font-size: 0.82rem;
    letter-spacing: 0.02em;
    color: #ffffff;
    background: rgba(255,255,255,0.05);
    border: 0.5px solid rgba(255,255,255,0.12);
    padding: 0.75rem 1rem;
    line-height: 1.5;
    appearance: none; -webkit-appearance: none;
    outline: none;
    transition: border-color 0.2s, background 0.2s;

    &::placeholder { color: rgba(255,255,255,0.25); opacity: 1; }

    &:focus {
      border-color: rgba(255,255,255,0.35);
      background: rgba(255,255,255,0.08);
    }
  }

  #contact_form select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='rgba(255,255,255,0.35)' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.9rem center;
    background-size: 0.6rem;
    padding-right: 2rem;
    cursor: pointer;
    option { background: #111113; color: #fff; }
  }
  #contact_form select:-moz-focusring { color: transparent !important; text-shadow: 0 0 0 #fff; }

  #contact_form textarea { resize: none; height: 7rem; }

  /* ── hCaptcha ─────────────────────────────────────────────────── */
  .ff-captcha {
    display: block;
  }

  #ff_hcaptcha {
    min-height: 78px;
  }

  /* ── Checkbox ──────────────────────────────────────────────────── */
  .ff-check-row {
    display: flex; align-items: flex-start; gap: 0.6rem;

    input[type="checkbox"] { position: absolute; left: -9999px; opacity: 0; }

    label {
      position: relative; padding-left: 1.5rem;
      font-family: "Outfit", sans-serif;
      font-weight: 300;
      font-size: 0.75rem;
      letter-spacing: 0.02em;
      line-height: 1.6;
      color: rgba(255,255,255,0.45);
      cursor: pointer;
      transition: color 0.2s;

      a { color: var(--accent); transition: color 1s; }

      &::before {
        content: ""; position: absolute; left: 0; top: 0.2rem;
        width: 0.9rem; height: 0.9rem;
        border: 0.5px solid rgba(255,255,255,0.2);
        background: rgba(255,255,255,0.04);
        transition: border-color 0.2s, background 0.2s;
      }
      &::after {
        content: ""; position: absolute; left: 0.28rem; top: 0.3rem;
        width: 0.28rem; height: 0.52rem;
        border-right: 1.5px solid #fff; border-bottom: 1.5px solid #fff;
        transform: rotate(45deg) scale(0);
        transition: transform 0.2s cubic-bezier(0.57,0.21,0.69,1.25);
      }
    }

    input[type="checkbox"]:checked + label {
      color: #fff;
      &::before { background: var(--accent); border-color: var(--accent); }
      &::after  { transform: rotate(45deg) scale(1); }
    }
    input[type="checkbox"]:focus + label::before { outline: 2px solid var(--accent); outline-offset: 2px; }
  }

  /* ── Actions ──────────────────────────────────────────────────── */
  .ff-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-block-start: 0.5rem;
  }

  #ff_submit { flex: 1; }

  .ff-required-note {
    font-family: "Outfit", sans-serif;
    font-weight: 300;
    font-size: 0.65rem;
    color: rgba(255,255,255,0.3);
    letter-spacing: 0.04em;
    margin-inline-end: auto;
  }

  .ff-btn {
    position: relative; overflow: hidden;
    padding: 0.75rem 1.4rem;
    border: 0.5px solid;
    font-family: "Outfit", sans-serif;
    font-weight: 300;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    &:disabled { opacity: 0.25; cursor: default; pointer-events: none; }
  }

  .ff-btn-front, .ff-btn-back { display: block; transition: transform 0.3s ease-in-out; }
  .ff-btn-back {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    transform: translateY(110%);
    svg { width: 0.9rem; height: 0.9rem; }
  }
  .ff-btn:not(:disabled):hover .ff-btn-front { transform: translateY(-110%); }
  .ff-btn:not(:disabled):hover .ff-btn-back  { transform: translateY(0); }

  .ff-btn-primary {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.3);
    color: #ffffff;
    transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
    &:not(:disabled):hover {
      background: rgba(255,255,255,0.16);
      border-color: rgba(255,255,255,0.6);
      box-shadow: 0 0 20px rgba(255,255,255,0.15);
    }
  }

  .ff-btn-ghost {
    background: transparent;
    border-color: rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.4);
    transition: background 0.2s, border-color 0.2s, color 0.2s;
    &:not(:disabled):hover { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.25); color: #fff; }
  }

  /* ── Confirmation overlay ────────────────────────────────────── */
  #modal_confirm {
    position: absolute;
    inset: 0;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2.5rem 2rem;
    gap: 1.25rem;
    background: oklch(0.10 0.03 var(--base-hue) / 0.98);
    opacity: 0;
    pointer-events: none;
    translate: 0 0.6rem;
    transition: opacity 0.5s ease, translate 0.5s cubic-bezier(0.22,1,0.36,1);

    svg { width: 3rem; height: 3rem; color: var(--accent); }

    h3 {
      font-family: var(--font-display);
      font-size: 2.4rem;
      letter-spacing: 0.04em;
      color: #ffffff;
    }

    p {
      font-family: "Outfit", sans-serif;
      font-weight: 300;
      font-size: 0.82rem;
      color: rgba(255,255,255,0.5);
    }
  }

  #modal_panel.is-confirmed #modal_confirm {
    opacity: 1;
    pointer-events: auto;
    translate: 0 0;
  }
}

/* ── Responsive ─────────────────────────────────────────────────── */
@layer responsive {
  @media (width <= 56.25em) {
    #hud { top: 1rem; right: 1rem; }
    #scene_strip { display: none; }
    #face_caption { bottom: 1rem; }
    #credit { display: none; }

    /* Vibe panel — horizontal row on mobile */
    #vibe_panel {
      bottom: 1.25rem;
      left: 1.25rem;
      translate: 0 0;
      flex-direction: row;
      gap: 0.85rem;
      align-items: center;
    }

    .vibe-panel-label { display: none; }

    /* Tooltip above on mobile */
    .vibe-node::after {
      top: auto;
      bottom: calc(100% + 0.65rem);
      left: 50%;
      translate: -50% 0;
    }

    section {
      min-height: 150vh;
      align-items: flex-end;
      padding: 0 1.5rem 3.5rem;
    }

    #s0 {
      min-height: 100vh;
      align-items: center;
      padding: 4rem 1.5rem;
    }

    :is(.text-card, .text-card.right) {
      max-width: 100%;
      padding: 1.5rem 1.25rem;
    }

    .body-text { line-height: 1.55; }
    .stat-row  { gap: 1.5rem; margin-block-start: 1.25rem; }
    .cta-row   { margin-block-start: 1.25rem; }

    /* Top nav — single row on mobile */
    #top_nav {
      flex-direction: row;
      align-items: center;
      padding: 0.75rem 1rem;
    }

    #top_nav_logo {
      font-size: 1.1rem;
    }

    #top_nav_links {
      gap: 0.4rem;
    }

    .nav-desktop-only {
      display: none !important;
    }

    #nav_hamburger {
      display: flex;
    }

    .top-nav-btn {
      padding: 0.35rem 0.65rem;
      font-size: 0.58rem;
      letter-spacing: 0.08em;
    }

    /* Mobile dropdown menu */
    #nav_mobile_menu {
      display: flex;
    }

    /* Modal — bottom sheet on mobile */
    #contact_modal {
      align-items: flex-end;
      padding: 0;
    }

    #modal_panel {
      max-width: 100%;
      max-height: 92dvh;
      border-radius: 1rem 1rem 0 0;
      border-bottom: none;
      scale: 1;
      translate: 0 100%;
      transition: translate var(--m-speed) cubic-bezier(0.22,1,0.36,1);
    }

    html.modal-open #modal_panel { translate: 0 0; }

    .ff-row { grid-template-columns: 1fr; }

    .ff-actions { flex-wrap: wrap; }

    .ff-required-note { flex: 0 0 100%; }
  }
}

/* ══════════════════════════════════════════════════════════════════════
   AUTH MODAL
   ══════════════════════════════════════════════════════════════════════ */
@layer components {
  #auth_backdrop {
    position: fixed; inset: 0; z-index: calc(var(--z-modal) - 1);
    background: rgba(5,5,5,0.82);
    backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
    opacity: 0; pointer-events: none;
    transition: opacity var(--m-speed) ease;
  }

  #auth_modal {
    position: fixed; inset: 0; z-index: var(--z-modal);
    display: flex; align-items: center; justify-content: center;
    padding: 1.5rem;
    opacity: 0; pointer-events: none;
    transition: opacity var(--m-speed) ease;
  }

  html.auth-open #auth_backdrop { opacity: 1; pointer-events: auto; }
  html.auth-open #auth_modal    { opacity: 1; pointer-events: auto; }
  html.auth-open body           { overflow: hidden; }

  #auth_panel {
    width: 100%;
    max-width: 460px;
    max-height: 90dvh;
    display: flex;
    flex-direction: column;
    background: oklch(0.10 0.03 var(--base-hue) / 0.97);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 0.5px solid rgba(255,255,255,0.12);
    box-shadow: 0 32px 80px rgba(0,0,0,0.8), 0 0 60px oklch(0.65 0.25 var(--base-hue) / 0.08);
    overflow: hidden;
    scale: 0.96;
    transition: scale var(--m-speed) cubic-bezier(0.22,1,0.36,1);
    position: relative;
  }

  html.auth-open #auth_panel { scale: 1; }

  #auth_header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.4rem 1.75rem;
    border-bottom: 0.5px solid rgba(255,255,255,0.08);
    flex-shrink: 0;
  }

  #auth_logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 0.04em;
    line-height: 1;
  }

  #auth_close {
    width: 2rem; height: 2rem;
    background: rgba(255,255,255,0.04);
    border: 0.5px solid rgba(255,255,255,0.12);
    border-radius: 50%;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    color: rgba(255,255,255,0.5);
    transition: background 0.2s, border-color 0.2s, color 0.2s;
    &:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.35); color: #fff; }
    svg { width: 0.6rem; height: 0.6rem; }
  }

  #auth_body {
    padding: 1.75rem 1.75rem 2rem;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.1) transparent;
    flex: 1;
    position: relative;
  }

  /* ── Tabs ─────────────────────────────────────────────────────────── */
  .auth-tabs {
    display: flex;
    margin-block-end: 1.75rem;
    border-bottom: 0.5px solid rgba(255,255,255,0.1);
  }

  .auth-tab {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.35);
    background: transparent;
    border: none;
    padding: 0 0 0.75rem;
    margin-inline-end: 1.5rem;
    cursor: pointer;
    position: relative;
    transition: color 0.2s;

    &::after {
      content: "";
      position: absolute; bottom: -0.5px; left: 0; right: 0;
      height: 1px;
      background: var(--accent);
      transform: scaleX(0);
      transition: transform 0.25s;
    }
    &.active          { color: #fff; &::after { transform: scaleX(1); } }
    &:hover:not(.active) { color: rgba(255,255,255,0.65); }
  }

  /* ── Step text ────────────────────────────────────────────────────── */
  .auth-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.4rem);
    letter-spacing: 0.04em;
    line-height: 0.95;
    color: #ffffff;
    margin-block-end: 0.5rem;
  }

  .auth-sub {
    font-family: "Outfit", sans-serif;
    font-weight: 300;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.5);
    letter-spacing: 0.02em;
    margin-block-end: 1.5rem;
    line-height: 1.6;
  }

  /* ── Form fields ──────────────────────────────────────────────────── */
  #auth_signin_form,
  #auth_signup_form,
  #auth_otp_form {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
  }

  #auth_signin_form input,
  #auth_signup_form input {
    width: 100%;
    font-family: "Outfit", sans-serif;
    font-weight: 300;
    font-size: 0.82rem;
    letter-spacing: 0.02em;
    color: #ffffff;
    background: rgba(255,255,255,0.05);
    border: 0.5px solid rgba(255,255,255,0.12);
    padding: 0.75rem 1rem;
    line-height: 1.5;
    appearance: none;
    outline: none;
    transition: border-color 0.2s, background 0.2s;

    &::placeholder { color: rgba(255,255,255,0.25); opacity: 1; }
    &:focus { border-color: rgba(255,255,255,0.35); background: rgba(255,255,255,0.08); }
  }

  /* ── Password strength indicator ─────────────────────────────────── */
  .auth-pw-strength {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-block-start: 0.35rem;
  }

  .auth-pw-bar {
    flex: 1; height: 2px;
    background: rgba(255,255,255,0.08);
    position: relative; overflow: hidden;
    &::after {
      content: "";
      position: absolute; inset-block: 0; left: 0;
      width: var(--pw-fill, 0%);
      background: var(--pw-color, rgba(255,255,255,0.2));
      transition: width 0.3s ease, background 0.3s ease;
    }
  }

  .auth-pw-label {
    font-family: var(--font-mono);
    font-size: 0.58rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--pw-color, rgba(255,255,255,0.3));
    transition: color 0.3s;
    min-width: 3.5rem;
    text-align: right;
  }

  /* ── OTP input ────────────────────────────────────────────────────── */
  #auth_otp_input {
    width: 100%;
    font-family: var(--font-mono) !important;
    font-size: 1.8rem !important;
    letter-spacing: 0.5em !important;
    text-align: center;
    color: #ffffff;
    background: rgba(255,255,255,0.05);
    border: 0.5px solid rgba(255,255,255,0.12);
    padding: 1rem 1rem 1rem 1.5em;
    outline: none;
    transition: border-color 0.2s, background 0.2s;
    &::placeholder { letter-spacing: 0.3em; color: rgba(255,255,255,0.2); padding-left: 0.5em; }
    &:focus { border-color: rgba(255,255,255,0.35); background: rgba(255,255,255,0.08); }
  }

  /* ── Centred icon steps (pending / signed-in) ─────────────────────── */
  .auth-icon-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.5rem 0 0.5rem;
    gap: 0;

    svg { color: var(--accent); margin-block-end: 1.25rem; }
    .auth-title { margin-block-end: 0.5rem; }
    .auth-sub   { margin-block-end: 1.25rem; }
  }
}

@media (width <= 56.25em) {
  #auth_modal {
    align-items: flex-end;
    padding: 0;
  }

  #auth_panel {
    max-width: 100%;
    max-height: 92dvh;
    border-radius: 1rem 1rem 0 0;
    border-bottom: none;
    scale: 1;
    translate: 0 100%;
    transition: translate var(--m-speed) cubic-bezier(0.22,1,0.36,1);
  }

  html.auth-open #auth_panel { translate: 0 0; }

  #auth_otp_input { font-size: 1.4rem !important; }

  /* Show hamburger, hide desktop nav items */
  #nav_hamburger { display: flex !important; }
  #nav_mobile_menu { display: flex !important; }
  .nav-desktop-only { display: none !important; }
}