/* Self-hosted fonts (latin + latin-ext). Regenerate via `node tools/fetch-fonts.mjs`. */
  @font-face { font-family: 'Fraunces'; font-style: italic; font-weight: 300 500; font-display: swap; src: url('/fonts/fraunces-italic-300-500-latin-ext.woff2') format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
  @font-face { font-family: 'Fraunces'; font-style: italic; font-weight: 300 500; font-display: swap; src: url('/fonts/fraunces-italic-300-500-latin.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
  @font-face { font-family: 'Fraunces'; font-style: normal; font-weight: 300 500; font-display: swap; src: url('/fonts/fraunces-normal-300-500-latin-ext.woff2') format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
  @font-face { font-family: 'Fraunces'; font-style: normal; font-weight: 300 500; font-display: swap; src: url('/fonts/fraunces-normal-300-500-latin.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
  @font-face { font-family: 'Inter Tight'; font-style: normal; font-weight: 300 600; font-display: swap; src: url('/fonts/inter-tight-normal-300-600-latin-ext.woff2') format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
  @font-face { font-family: 'Inter Tight'; font-style: normal; font-weight: 300 600; font-display: swap; src: url('/fonts/inter-tight-normal-300-600-latin.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
  @font-face { font-family: 'JetBrains Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url('/fonts/jetbrains-mono-normal-400-latin-ext.woff2') format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
  @font-face { font-family: 'JetBrains Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url('/fonts/jetbrains-mono-normal-400-latin.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
  @font-face { font-family: 'JetBrains Mono'; font-style: normal; font-weight: 500; font-display: swap; src: url('/fonts/jetbrains-mono-normal-500-latin-ext.woff2') format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
  @font-face { font-family: 'JetBrains Mono'; font-style: normal; font-weight: 500; font-display: swap; src: url('/fonts/jetbrains-mono-normal-500-latin.woff2') format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }

  :root {
    /* Paper palette — colores con calidez atmosférica (OKLCH para depth) */
    --bg: #f4ede1;
    --bg-deep: #ede3d1;
    /* hex fallbacks first for browsers without OKLCH (Chrome <111, Safari <15.4, FF <113) */
    --bg-edge: #e7dec7;
    --ink: #2a2218;
    --ink-soft: #52422e;
    --ink-faint: #5a4838;
    --rule: #b3a285;
    --rule-strong: #8b7456;
    --rule-deep: #5e4936;
    --paper-shade: #ebd9bf;
    --accent: #b14828;
    --accent-soft: #f5e5db;
    --accent-deep: #7d3d28;
    --bg-edge: oklch(88% 0.02 60);  /* vignette de borde, más cálido */
    --ink: oklch(20% 0.018 35);     /* tinta cálida, no negro plano */
    --ink-soft: oklch(38% 0.022 35);
    --ink-faint: oklch(42% 0.024 38);
    --rule: oklch(72% 0.035 55);     /* hairlines con presencia editorial real */
    --rule-strong: oklch(56% 0.045 48); /* reglas importantes con fuerza letterpress */
    --rule-deep: oklch(40% 0.040 42);  /* énfasis máximo, casi tinta */
    --paper-shade: oklch(88% 0.030 65);
    --accent: oklch(58% 0.155 30);
    --accent-soft: oklch(92% 0.04 32);
    --accent-deep: oklch(42% 0.12 28);

    /* Sombras editoriales cálidas — multicapa */
    --shadow-warm-sm: 0 1px 2px rgba(42, 33, 24, 0.04), 0 2px 6px rgba(42, 33, 24, 0.03);
    --shadow-warm-md: 0 2px 4px rgba(42, 33, 24, 0.05), 0 8px 24px rgba(42, 33, 24, 0.04);
    --shadow-letterpress: inset 0 -1px 0 rgba(42, 33, 24, 0.06), 0 1px 0 rgba(255, 255, 255, 0.4);
    --shadow-warm-sm: 0 1px 2px oklch(20% 0.02 35 / 0.04), 0 2px 6px oklch(20% 0.02 35 / 0.03);
    --shadow-warm-md: 0 2px 4px oklch(20% 0.02 35 / 0.05), 0 8px 24px oklch(20% 0.02 35 / 0.04);
    --shadow-letterpress: inset 0 -1px 0 oklch(20% 0.02 35 / 0.06), 0 1px 0 oklch(100% 0 0 / 0.4);

    /* Hairlines con gradiente — fade sutil en bordes pero con fuerza visible en el medio */
    --hairline-h: linear-gradient(to right, transparent 0%, var(--rule-strong) 8%, var(--rule-strong) 92%, transparent 100%);
    --hairline-v: linear-gradient(to bottom, transparent 0%, var(--rule-strong) 8%, var(--rule-strong) 92%, transparent 100%);

    --serif: "Fraunces", "Source Serif 4", Georgia, serif;
    --sans: "Fraunces", "Source Serif 4", Georgia, serif;
    --mono: "JetBrains Mono", ui-monospace, monospace;

    --maxw: 1180px;
    --pad-x: clamp(20px, 4vw, 56px);
  }

  /* Dusk palette */
  html[data-palette="dusk"] {
    --bg: #1d1a24;
    --bg-deep: #141119;
    --ink: #f0e9db;
    --ink-soft: #c9bea9;
    --ink-faint: #8a7e6a;
    --rule: #3a3344;
    --paper-shade: #272230;
    --accent: #d68855;
    --accent-soft: #5a3e30;
    --accent: oklch(72% 0.12 40);
    --accent-soft: oklch(35% 0.05 40);
  }

  /* Ink (deep black paper) */
  html[data-palette="ink"] {
    --bg: #181513;
    --bg-deep: #0f0d0b;
    --ink: #efe6d5;
    --ink-soft: #c6b99f;
    --ink-faint: #7d7160;
    --rule: #342e26;
    --paper-shade: #23201c;
    --accent: #d3804f;
    --accent-soft: #56392c;
    --accent: oklch(70% 0.13 34);
    --accent-soft: oklch(34% 0.05 34);
  }

  /* Linen — very pale, cooler cream */
  html[data-palette="linen"] {
    --bg: #efeae0;
    --bg-deep: #e6dfd0;
    --ink: #1f2024;
    --ink-soft: #4b4d53;
    --ink-faint: #8a8c92;
    --rule: #d2ccbc;
    --paper-shade: #e2dbc9;
    --accent: #5e7da4;
    --accent-soft: #dde8f0;
    --accent: oklch(55% 0.10 250);
    --accent-soft: oklch(92% 0.03 250);
  }

  /* Type pair variants */
  html[data-type="fraunces_inter"] { --serif: "Fraunces", Georgia, serif; --sans: "Inter Tight", sans-serif; }
  html[data-type="fraunces_only"]  { --serif: "Fraunces", Georgia, serif; --sans: "Fraunces", Georgia, serif; }
  html[data-type="inter_only"]     { --serif: "Inter Tight", sans-serif; --sans: "Inter Tight", sans-serif; }

  /* ---------- Typographic fog ---------- */
  .type-fog {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
    opacity: 0;
    animation: type-fog-in 2.5s 0.5s ease forwards;
  }
  @keyframes type-fog-in {
    to { opacity: 1; }
  }
  .type-fog span {
    position: absolute;
    white-space: nowrap;
    color: var(--ink);
    filter: blur(4px);
    opacity: 0.07;
  }
  .type-fog .tf-serif { font-family: var(--serif); font-style: italic; font-variation-settings: "opsz" 144; }
  .type-fog .tf-sans { font-family: var(--sans); font-weight: 300; }
  .type-fog .tf-mono { font-family: var(--mono); font-weight: 400; letter-spacing: 0.15em; text-transform: uppercase; }
  @media (prefers-reduced-motion: reduce) {
    .type-fog { display: none; }
  }

  * { box-sizing: border-box; }
  html, body { margin:0; padding:0; }
  body {
    background: var(--bg);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 17px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    text-rendering: geometricPrecision;
    font-feature-settings: "kern" 1, "liga" 1, "calt" 1, "ss01" 1;
    font-optical-sizing: auto;
    overflow-x: hidden;
    transition: background-color .4s ease, color .4s ease;
    /* Vignette atmosférica en los bordes — paper edge darkening */
    background-image:
      radial-gradient(ellipse 120% 80% at 50% 0%, transparent 60%, oklch(80% 0.025 50 / 0.18) 100%),
      radial-gradient(ellipse 120% 80% at 50% 100%, transparent 60%, oklch(80% 0.025 50 / 0.14) 100%);
    background-attachment: fixed;
  }
  /* Body text con oldstyle figures donde fluye con el texto */
  body p, body li { font-feature-settings: "kern" 1, "liga" 1, "calt" 1, "onum" 1, "ss01" 1; }
  /* Headings tabular figures + ligatures contextuales */
  h1, h2, h3, h4 { font-feature-settings: "kern" 1, "liga" 1, "dlig" 1, "ss01" 1; }
  /* Mono (eyebrows, metadata) — tracking más amplio para sentir letterpress */
  .eyebrow, .sec-label, .doc-meta, footer { font-feature-settings: "kern" 1; }

  /* Paper grain overlay */
  .grain {
    position: fixed; inset: 0; pointer-events: none; z-index: 100;
    opacity: .35; mix-blend-mode: multiply;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.12  0 0 0 0 0.10  0 0 0 0 0.08  0 0 0 0.22 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  }
  html[data-palette="dusk"] .grain, html[data-palette="ink"] .grain { mix-blend-mode: screen; opacity: .18; }
  html[data-grain="off"] .grain { display: none; }

  .container { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad-x); }

  /* ---------- Top bar ---------- */
  header.top {
    position: sticky; top:0; z-index: 40;
    backdrop-filter: blur(8px);
    background: color-mix(in oklab, var(--bg) 78%, transparent);
    border-bottom: none;
  }
  header.top::after {
    content: "";
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 1px;
    background: color-mix(in oklab, var(--rule) 60%, transparent);
    filter: blur(0.4px);
  }
  .top-inner {
    display:flex; align-items:center; justify-content:space-between;
    padding: 14px var(--pad-x);
    max-width: var(--maxw); margin: 0 auto;
  }
  .brand {
    font-family: var(--serif);
    font-weight: 380;
    font-size: 28px;
    letter-spacing: -0.015em;
    font-style: italic;
    font-variation-settings: "opsz" 144;
    line-height: 1;
  }
  .brand .dot {
    color: var(--accent);
    font-style: normal;
    font-weight: 440;
  }
  .top-right { display:flex; align-items:center; gap: 18px; }
  .lang-toggle {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    background: transparent;
    border: 1px solid var(--rule);
    color: var(--ink-soft);
    padding: 7px 10px;
    border-radius: 999px;
    cursor: pointer;
    display:flex; gap: 6px; align-items:center;
  }
  .lang-toggle span[data-active="true"] { color: var(--ink); }
  .lang-toggle .sep { opacity:.4; }
  .nav-cta {
    font-family: var(--serif);
    font-style: italic;
    font-weight: 380;
    font-size: 14px;
    letter-spacing: -0.2px;
    color: var(--ink);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--ink);
    padding: 2px 0;
    cursor: pointer;
  }

  /* ---------- Hero ---------- */
  .hero {
    position: relative;
    padding: 64px var(--pad-x) 80px;
    max-width: var(--maxw); margin: 0 auto;
    min-height: 82vh;
  }
  .hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: clamp(32px, 6vw, 80px);
    align-items: center;
  }
  @media (max-width: 860px) { .hero-grid { grid-template-columns: 1fr; } }

  .eyebrow {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-faint);
    display:flex; align-items:center; gap: 10px;
    margin-bottom: 28px;
  }
  .eyebrow::before {
    content:""; width:24px; height:1px; background: var(--ink-faint); display:inline-block;
  }

  h1.hero-title {
    font-family: var(--serif);
    font-weight: 360;
    font-size: clamp(40px, 6.2vw, 76px);
    line-height: 1.02;
    letter-spacing: -0.02em;
    margin: 0 0 28px;
    font-variation-settings: "opsz" 144;
    text-wrap: balance;
  }
  h1.hero-title em {
    font-style: italic;
    font-weight: 320;
    color: var(--accent);
  }
  .hero-sub {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(18px, 1.7vw, 22px);
    line-height: 1.5;
    color: var(--ink-soft);
    max-width: 520px;
    margin: 0 0 38px;
    text-wrap: pretty;
  }

  /* Hero input card — borde como margen anotado en libro */
  .thought-card {
    position: relative;
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 4px 0 4px 22px;
    max-width: 560px;
  }
  .thought-card::before {
    content: "";
    position: absolute;
    top: 8%; bottom: 8%;
    left: 0;
    width: 1px;
    background: linear-gradient(to bottom, transparent 0%, var(--rule-strong) 15%, var(--rule-strong) 85%, transparent 100%);
  }
  .thought-card .label {
    font-family: var(--serif);
    font-style: italic;
    font-size: 11px;
    letter-spacing: 0.3px;
    color: var(--ink-faint);
    margin-bottom: 14px;
    opacity: 0.7;
  }
  .thought-input {
    width: 100%;
    background: transparent;
    border: 0;
    outline: 0;
    resize: none;
    font-family: var(--serif);
    font-size: 22px;
    line-height: 1.5;
    color: var(--ink);
    min-height: 64px;
    font-weight: 380;
    letter-spacing: -0.2px;
    font-variation-settings: "opsz" 72;
  }
  .thought-input::placeholder { color: var(--ink-faint); font-style: italic; font-weight: 340; }

  .hero-emotions {
    margin-top: 16px;
    display: flex; flex-wrap: wrap; gap: 4px 14px;
    padding-top: 0;
  }
  .hero-emo {
    font-family: var(--serif);
    font-style: italic;
    font-size: 15px;
    color: var(--ink-faint);
    background: transparent;
    border: none;
    padding: 3px 0;
    cursor: pointer;
    transition: color .2s ease, text-decoration-color .2s ease;
    text-decoration: underline;
    text-decoration-color: transparent;
    text-underline-offset: 4px;
    text-decoration-thickness: 1.5px;
  }
  .hero-emo:hover { color: var(--ink-soft); text-decoration-color: var(--ink-faint); }
  .hero-emo[data-on="true"] {
    text-decoration-color: currentColor;
  }
  .send-row {
    display: flex;
    flex-direction: column;
    gap: 18px;
    align-items: flex-start;
    margin-top: 22px;
  }
  .hint { font-family: var(--serif); font-style: italic; font-size: 12.5px; letter-spacing: 0.3px; color: var(--ink-faint); opacity: 0.75; }
  .send-btn {
    background: transparent;
    color: var(--ink);
    border: 1px solid var(--ink);
    padding: 12px 24px 13px;
    border-radius: 999px;
    font-family: var(--serif);
    font-style: italic;
    font-weight: 380;
    font-size: 16px;
    letter-spacing: -0.2px;
    cursor: pointer;
    display: inline-flex; gap: 10px; align-items: center;
    transition: transform .25s ease, box-shadow .25s ease, background-color .25s ease, color .25s ease;
  }
  .send-btn:hover {
    background: var(--ink);
    color: var(--bg);
    transform: translateY(-2px);
    box-shadow: var(--shadow-warm-md);
  }
  .send-btn .arrow {
    font-style: normal;
    font-family: var(--sans);
    font-size: 14px;
    transition: transform .3s cubic-bezier(0.2, 0.8, 0.2, 1);
  }
  .send-btn:hover .arrow { transform: translateX(4px); }
  /* Variables que pueden no existir aún */
  :root {
    --shadow-warm-lg: 0 4px 8px rgba(42, 33, 24, 0.06), 0 16px 40px rgba(42, 33, 24, 0.05);
    --shadow-warm-lg: 0 4px 8px oklch(20% 0.02 35 / 0.06), 0 16px 40px oklch(20% 0.02 35 / 0.05);
  }

  /* Hero constellation */
  .constellation-wrap {
    position: relative;
    aspect-ratio: 1 / 1;
    width: 180%;
    max-width: 1100px;
    margin-left: auto;
    margin-right: -30%;
    margin-top: -60px;
  }
  .constellation { position: absolute; inset:0; width:100%; height:100%; display:block; }
  .constellation-caption {
    position: absolute; bottom: 0; left: 0;
    font-family: var(--mono); font-size: 10.5px;
    letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--ink-faint);
  }

  /* ---------- Sections ---------- */
  section { padding: 96px 0; position: relative; z-index: 1; }
  section + section { border-top: 0; padding-top: 112px; }
  section.manifesto { padding-top: 112px; }
  .sec-label {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ink-faint);
    margin-bottom: 28px;
  }
  .sec-label .num { display: none; }
  .sec-title {
    font-family: var(--serif);
    font-weight: 340;
    font-size: clamp(32px, 4.6vw, 54px);
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin: 0 0 20px;
    max-width: 760px;
    text-wrap: balance;
    font-variation-settings: "opsz" 144;
  }
  .sec-title em { font-style: italic; color: var(--accent); font-weight: 320; }
  .sec-lede {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(18px, 1.6vw, 21px);
    line-height: 1.55;
    color: var(--ink-soft);
    max-width: 620px;
    text-wrap: pretty;
  }

  /* ---------- Cómo funciona — layout editorial sin cajas con bordes ---------- */
  .steps {
    margin-top: 64px;
    display: grid;
    gap: 48px 0;
    grid-template-columns: 1fr;
    background: transparent;
    border: 0;
    border-radius: 0;
    overflow: visible;
  }
  /* Hairline horizontal entre steps en mobile */
  .steps .step + .step {
    position: relative;
  }
  .steps .step + .step::before {
    content: "";
    position: absolute;
    top: -24px;
    left: 0; right: 0;
    height: 1px;
    background: var(--hairline-h);
    opacity: 0.6;
    filter: blur(0.4px);
  }
  @media (min-width: 900px) {
    .steps { grid-template-columns: 1fr 1fr 1fr; gap: 0; }
    .steps .step + .step::before { display: none; }
    .steps .step + .step::after {
      content: "";
      position: absolute;
      top: 8%; bottom: 8%;
      left: 0;
      width: 1px;
      background: var(--hairline-v);
      opacity: 0.5;
      filter: blur(0.4px);
    }
  }
  .step {
    background: transparent;
    padding: 0 28px;
    display: flex; flex-direction: column; gap: 18px;
    min-height: 460px;
    position: relative;
  }
  @media (max-width: 899px) { .step { padding: 0; } }
  .step-n {
    font-family: var(--serif);
    font-style: italic;
    font-size: 44px;
    color: var(--accent);
    line-height: 1;
    font-weight: 320;
    font-variation-settings: "opsz" 144;
  }
  .step h3 {
    font-family: var(--serif);
    font-size: 26px;
    font-weight: 380;
    margin: 0;
    letter-spacing: -0.01em;
    line-height: 1.15;
  }
  .step p {
    color: var(--ink-soft);
    margin: 0;
    line-height: 1.55;
    font-size: 15.5px;
    max-width: 34ch;
    text-wrap: pretty;
  }
  .step-mock {
    margin-top: auto;
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 0;
    min-height: 180px;
    position: relative;
  }

  /* Mock 1 — Writing (matches real app: no box, serif text, emotion words) */
  .mock1 { background: transparent; border: none; box-shadow: none; padding: 0; display: flex; flex-direction: column; gap: 8px; }
  .mock1 .mock-header {
    font-family: var(--serif); font-style: italic; font-size: 9px;
    color: var(--ink-faint); letter-spacing: 0.3px; opacity: 0.7;
  }
  .mock1 .mock-text {
    font-family: var(--serif); font-size: 17px; line-height: 1.5; color: var(--ink);
    font-weight: 380; letter-spacing: -0.2px; min-height: 50px;
  }
  .mock1 .mock-text .cursor {
    display: inline-block; width: 1.5px; height: 1em;
    background: linear-gradient(180deg, var(--ink) 85%, transparent);
    margin-left: 1px; vertical-align: -2px; animation: blink 1.1s ease-in-out infinite;
  }
  .mock1 .mock-emo-label {
    font-family: var(--sans); font-size: 8px; letter-spacing: 2px;
    text-transform: uppercase; color: var(--ink-faint); margin-top: 6px;
  }
  .mock1 .mock-emotions { display: flex; flex-wrap: wrap; gap: 4px 12px; margin-top: 4px; }
  .mock1 .mock-emo {
    font-family: var(--serif); font-style: italic; font-size: 13px;
    color: var(--ink-faint); text-decoration: none; padding: 0; background: none; border: none;
  }
  .mock1 .mock-emo.on {
    text-decoration: underline; text-underline-offset: 3px;
    text-decoration-thickness: 1.5px;
  }
  @keyframes blink { 0%, 45% { opacity:1 } 55%, 100% { opacity:0.15 } }

  /* Mock 2 — Navigation */
  .mock2 { display: flex; flex-direction: column; gap: 8px; }
  .mock2 .mock-frame { border: none; padding: 0; width: 100%; }
  .mock2 .mock-frame-inner { border: none; padding: 0; text-align: left; }
  .mock2 .mock-nav-text {
    font-family: var(--serif); font-style: italic; font-size: 17px;
    line-height: 1.5; color: var(--ink); letter-spacing: -0.2px;
    font-weight: 380;
  }
  .mock2 .mock-nav-emo {
    margin-top: 10px; font-family: var(--serif); font-style: italic;
    font-size: 10.5px; letter-spacing: 0.3px;
  }
  .mock2 .mock-swipe-hints {
    display: flex; justify-content: space-between; margin-top: 14px;
    font-family: var(--serif); font-style: italic; font-size: 9px; color: var(--ink-faint); opacity: 0.5;
  }

  /* Mock 3 — Map */
  .mock3 { min-height: 180px; opacity: 0.7; }
  .mock3 svg { width: 100%; height: 100%; display: block; }

  /* ---------- Qué no es ---------- */
  .nots { margin-top: 48px; display: grid; gap: 36px 32px; grid-template-columns: 1fr; }
  @media (min-width: 760px) { .nots { grid-template-columns: repeat(3, 1fr); } }
  .not-card {
    padding-top: 28px;
    position: relative;
  }
  /* Hairline gradiente reemplaza el border-top sólido */
  .not-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 60%;
    height: 1px;
    background: linear-gradient(to right, var(--rule-strong) 0%, var(--rule) 70%, transparent 100%);
    filter: blur(0.4px);
  }
  .not-card .strike {
    font-family: var(--serif); font-style: italic; font-size: 14px;
    color: var(--ink-faint); text-decoration: line-through;
    text-decoration-thickness: 1px; margin-bottom: 10px;
    text-decoration-color: var(--ink-faint);
  }
  .not-card h4 {
    font-family: var(--serif); font-size: 24px; font-weight: 380;
    margin: 4px 0 12px; letter-spacing: -0.01em; line-height: 1.15;
  }
  .not-card p {
    color: var(--ink-soft); font-size: 15px; line-height: 1.55;
    margin: 0; max-width: 38ch; text-wrap: pretty;
  }

  /* ---------- Manifesto ---------- */
  .manifesto {
    background: var(--bg-deep);
    border-top: none;
    border-bottom: none;
    position: relative;
  }
  .manifesto::before, .manifesto::after {
    content: "";
    position: absolute;
    left: 0; right: 0;
    height: 1px;
    background: var(--rule);
    filter: blur(0.4px);
  }
  .manifesto::before { top: 0; }
  .manifesto::after { bottom: 0; }
  .manifesto-inner {
    max-width: 680px; margin: 0 auto; padding: 0 var(--pad-x);
  }
  .manifesto .sec-label { text-align: center; margin-bottom: 36px; }
  .manifesto-body {
    font-family: var(--serif);
    font-weight: 330;
    font-size: clamp(21px, 2vw, 26px);
    line-height: 1.5;
    color: var(--ink);
    text-align: left;
    font-variation-settings: "opsz" 144;
  }
  .manifesto-body p + p { margin-top: 1.1em; }
  .manifesto-body em { font-style: italic; color: var(--accent); }
  .manifesto-sig {
    font-family: var(--mono); font-size: 11px; letter-spacing: .16em;
    text-transform: uppercase; color: var(--ink-faint);
    margin-top: 48px; display:flex; align-items:center; gap: 10px;
  }
  .manifesto-sig::before { content:""; width: 32px; height:1px; background: var(--ink-faint); }

  .drop-q {
    font-family: var(--serif);
    font-style: italic;
    font-size: 2.4em;
    line-height: 0;
    vertical-align: baseline;
    margin-right: 0.01em;
    color: var(--accent);
    font-variation-settings: "opsz" 144;
    font-weight: 360;
  }

  /* ---------- Final CTA ---------- */
  .cta-final {
    padding: 140px var(--pad-x) 140px;
    text-align: center;
    position: relative;
  }
  .cta-final h2 {
    font-family: var(--serif);
    font-weight: 340;
    font-size: clamp(40px, 6vw, 76px);
    line-height: 1.02;
    letter-spacing: -0.02em;
    margin: 0 auto 24px;
    max-width: 14ch;
    text-wrap: balance;
    font-variation-settings: "opsz" 144;
  }
  .cta-final h2 em { font-style: italic; color: var(--accent); font-weight: 320; }
  .cta-final p.lede {
    font-family: var(--serif);
    font-weight: 300;
    font-size: clamp(17px, 1.6vw, 20px);
    color: var(--ink-soft);
    max-width: 48ch;
    margin: 0 auto 40px;
  }
  .cta-micro {
    margin-top: 18px;
    font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
    color: var(--ink-faint);
  }

  /* ---------- Footer ---------- */
  footer {
    padding: 40px var(--pad-x) 48px;
    border-top: none;
    position: relative;
    z-index: 1;
    font-family: var(--mono);
    font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--ink-faint);
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 12px;
    max-width: var(--maxw); margin: 0 auto;
  }
  footer::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: var(--rule);
    filter: blur(0.4px);
  }
  footer a { color: var(--ink-faint); text-decoration: none; border-bottom: 1px solid transparent; }
  footer a:hover { color: var(--ink); border-bottom-color: var(--ink); }



  /* ---------- Scroll reveal ---------- */
  .reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s cubic-bezier(0.2, 0.6, 0.3, 1), transform .7s cubic-bezier(0.2, 0.6, 0.3, 1); }
  .reveal.on { opacity: 1; transform: none; }
  .reveal-stagger { transition-delay: calc(var(--i, 0) * 90ms); }

  /* ---------- Hero entry ---------- */
  @keyframes hero-in {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: none; }
  }
  .hero .eyebrow,
  .hero .hero-title,
  .hero .hero-sub,
  .hero .thought-card,
  .hero .path-divider,
  .hero .found-card,
  .hero .constellation-wrap {
    opacity: 0;
    animation: hero-in .8s cubic-bezier(0.2, 0.6, 0.3, 1) forwards;
  }
  .hero .eyebrow { animation-delay: .1s; }
  .hero .hero-title { animation-delay: .2s; }
  .hero .hero-sub { animation-delay: .35s; }
  .hero .thought-card { animation-delay: .5s; }
  .hero .path-divider { animation-delay: .6s; }
  .hero .found-card { animation-delay: .7s; }
  .hero .gesture-guide {
    opacity: 0;
    animation: hero-in .8s cubic-bezier(0.2, 0.6, 0.3, 1) forwards;
    animation-delay: .85s;
  }
  .hero .constellation-wrap { animation-delay: .4s; animation-duration: 1.2s; }

  /* ---------- Path divider ---------- */
  .path-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 28px 0 24px;
    max-width: 560px;
  }
  .path-divider::before,
  .path-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--hairline-h);
    opacity: 0.5;
    filter: blur(0.4px);
  }
  .path-divider span {
    font-family: var(--serif);
    font-style: italic;
    font-size: 14px;
    color: var(--ink-faint);
    letter-spacing: 0.05em;
  }

  /* ---------- Found card ---------- */
  .found-card {
    max-width: 560px;
    position: relative;
    padding: 0 0 0 22px;
  }
  .found-card::before {
    content: "";
    position: absolute;
    top: 4px; bottom: 4px;
    left: 0;
    width: 1px;
    background: linear-gradient(to bottom, transparent 0%, var(--accent) 20%, var(--accent) 80%, transparent 100%);
  }
  .found-card-label {
    font-family: var(--serif);
    font-style: italic;
    font-size: 11px;
    letter-spacing: 0.3px;
    color: var(--ink-faint);
    margin-bottom: 14px;
    opacity: 0.7;
  }
  .found-card-quote {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 18px;
  }
  .found-card-text {
    font-family: var(--serif);
    font-style: italic;
    font-size: 18px;
    line-height: 1.5;
    color: var(--ink);
    font-weight: 380;
    letter-spacing: -0.2px;
    font-variation-settings: "opsz" 72;
  }
  .found-card-author {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-faint);
  }
  .found-card-cta {
    background: transparent;
    color: var(--ink);
    border: 1px solid var(--ink);
    padding: 12px 24px 13px;
    border-radius: 999px;
    font-family: var(--serif);
    font-style: italic;
    font-weight: 380;
    font-size: 16px;
    letter-spacing: -0.2px;
    cursor: pointer;
    display: inline-flex; gap: 10px; align-items: center;
    transition: transform .25s ease, box-shadow .25s ease, background-color .25s ease, color .25s ease;
  }
  .found-card-cta:hover {
    background: var(--ink);
    color: var(--bg);
    transform: translateY(-2px);
    box-shadow: var(--shadow-warm-md);
  }
  .found-card-cta .arrow {
    font-style: normal;
    font-family: var(--sans);
    font-size: 14px;
    transition: transform .3s cubic-bezier(0.2, 0.8, 0.2, 1);
  }
  .found-card-cta:hover .arrow { transform: translateX(4px); }
  .found-card-hint {
    display: block;
    margin-top: 14px;
    font-family: var(--serif);
    font-style: italic;
    font-size: 12px;
    letter-spacing: 0.3px;
    color: var(--ink-faint);
    opacity: 0.65;
  }

  /* ---------- Gesture guide ---------- */
  .gesture-guide {
    max-width: 560px;
    margin-top: 28px;
    padding: 20px 0 0;
    border-top: 1px solid rgba(118, 95, 76, 0.15);
    border-top: 1px solid oklch(50% 0.02 40 / 0.15);
  }
  .gesture-guide-label {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--ink-faint);
    opacity: 0.6;
    margin-bottom: 16px;
  }
  .gesture-guide-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
  }
  .gesture-item {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .gesture-item-label {
    font-family: var(--serif);
    font-style: italic;
    font-size: 13px;
    color: var(--ink-faint);
    letter-spacing: -0.01em;
  }
  .gesture-item--accent .gesture-item-label {
    color: var(--accent);
  }
  @keyframes gg-slide-right {
    0% { transform: translateX(-4px); opacity: 0; }
    20% { opacity: 0.8; }
    80% { opacity: 0.8; }
    100% { transform: translateX(10px); opacity: 0; }
  }
  @keyframes gg-slide-left {
    0% { transform: translateX(4px); opacity: 0; }
    20% { opacity: 0.8; }
    80% { opacity: 0.8; }
    100% { transform: translateX(-10px); opacity: 0; }
  }
  @keyframes gg-slide-up {
    0% { transform: translateY(3px); opacity: 0; }
    20% { opacity: 0.8; }
    80% { opacity: 0.8; }
    100% { transform: translateY(-8px); opacity: 0; }
  }
  .gg-stroke-right { animation: gg-slide-right 2s ease-in-out infinite; }
  .gg-stroke-left { animation: gg-slide-left 2s ease-in-out infinite; }
  .gg-stroke-up { animation: gg-slide-up 2s ease-in-out infinite; }

  @media (max-width: 600px) {
    .gesture-guide-row { gap: 20px; }
    .gesture-item-label { font-size: 12px; }
  }

  /* ---------- Focus states ---------- */
  .send-btn:focus-visible,
  .lang-toggle:focus-visible,
  .nav-cta:focus-visible,
  .hero-emo:focus-visible,
  .found-card-cta:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
  }
  .thought-input:focus-visible { outline: none; }

  /* ========== DEMO FLOW OVERLAY ========== */
  #demoOverlay {
    position: fixed; inset: 0; z-index: 10000;
    background: var(--bg);
    display: none; flex-direction: column;
    overflow: hidden;
    font-family: var(--serif);
    -webkit-user-select: none; user-select: none;
    touch-action: none;
  }
  #demoOverlay.active { display: flex; }

  /* paper textures inside demo */
  .demo-paper { position: absolute; inset: 0; pointer-events: none; }
  .demo-paper .dp-mottle {
    position: absolute; inset: 0; mix-blend-mode: multiply; opacity: 0.5;
    background-image: url("data:image/svg+xml;utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.015' numOctaves='3' seed='2'/%3E%3CfeColorMatrix values='0 0 0 0 0.4 0 0 0 0 0.35 0 0 0 0 0.28 0 0 0 0.12 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  }
  .demo-paper .dp-grain {
    position: absolute; inset: 0; mix-blend-mode: multiply; opacity: 0.6;
    background-image: url("data:image/svg+xml;utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.72' numOctaves='2' seed='5'/%3E%3CfeColorMatrix values='0 0 0 0 0.35 0 0 0 0 0.3 0 0 0 0 0.24 0 0 0 0.08 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)'/%3E%3C/svg%3E");
  }
  .demo-paper .dp-light {
    position: absolute; inset: 0;
    background: linear-gradient(145deg, rgba(255,252,245,0.25) 0%, transparent 40%, transparent 65%, rgba(80,60,40,0.06) 100%);
  }

  /* demo screens */
  .demo-screen { position: absolute; inset: 0; display: flex; flex-direction: column; transition: opacity 0.4s ease, transform 0.4s ease; }
  .demo-screen.hidden { opacity: 0; pointer-events: none; transform: translateY(20px); }

  /* WRITE screen */
  .demo-write { padding: 0 28px; justify-content: center; align-items: center; z-index: 2; }
  .demo-write-header {
    font-family: var(--serif); font-style: italic; font-size: 12px;
    color: var(--ink-faint); letter-spacing: 0.3px; margin-bottom: 32px; text-align: center;
  }
  .demo-write-text {
    font-family: var(--serif); font-size: 22px; line-height: 1.6;
    color: var(--ink); text-align: center; max-width: 320px;
    font-variation-settings: "opsz" 20; font-weight: 340;
    min-height: 60px; position: relative;
  }
  .demo-write-text .cursor-blink {
    display: inline-block; width: 1.5px; height: 1.1em;
    background: linear-gradient(180deg, var(--ink) 0%, var(--ink) 85%, transparent 100%);
    vertical-align: text-bottom; margin-left: 2px; border-radius: 1px;
    animation: ink-blink 1.1s ease-in-out infinite;
  }
  @keyframes ink-blink { 0%, 45% { opacity: 1; } 55%, 100% { opacity: 0.15; } }

  .demo-emotions {
    margin-top: 28px; display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
    max-width: 340px;
  }
  .demo-emo-chip {
    font-family: var(--serif); font-style: italic; font-size: 15px;
    color: var(--ink-faint); background: none; border: none; cursor: pointer;
    padding: 4px 8px; transition: all 0.2s ease;
    text-decoration: underline; text-decoration-color: transparent;
    text-underline-offset: 4px; opacity: 0; transform: translateY(6px);
    animation: emo-in 0.3s ease forwards;
  }
  @keyframes emo-in { to { opacity: 1; transform: none; } }
  .demo-emo-chip.selected { text-decoration-color: currentColor; }

  /* NAV screen */
  .demo-nav { z-index: 2; justify-content: center; align-items: center; padding: 0 12%; }
  .demo-nav-frame {
    border: 1px solid rgba(42,36,32,0.08); border-radius: 2px;
    padding: 40px 24px; width: 100%; max-width: 360px;
    position: relative; transition: transform 0.06s linear;
  }
  .demo-nav-thought {
    font-family: var(--serif); font-style: italic;
    font-size: 24px; line-height: 1.45; color: var(--ink);
    text-align: center; letter-spacing: -0.2px; font-weight: 400;
    filter: url(#demo-ink-bleed);
  }
  .demo-nav-meta {
    margin-top: 20px; text-align: center;
    font-family: var(--mono); font-size: 9px; letter-spacing: 2px;
    text-transform: uppercase; color: var(--ink-faint);
  }
  .demo-nav-emo {
    margin-top: 8px; text-align: center;
    font-family: var(--serif); font-style: italic; font-size: 13px;
    letter-spacing: 0.5px;
  }

  /* explore button */
  .demo-explore-btn {
    margin-top: 18px; text-align: center;
    font-family: var(--mono); font-size: 8px; letter-spacing: 2.5px;
    text-transform: uppercase; color: var(--ink-faint); opacity: 0.45;
    cursor: pointer; transition: opacity 0.2s;
    padding: 6px 0;
  }
  .demo-explore-btn:hover, .demo-explore-btn:active { opacity: 0.85; }

  /* anchor bar — shows the thought being explored from */
  .demo-anchor {
    position: absolute; top: 0; left: 0; right: 0; z-index: 12;
    padding: 14px 20px 10px; text-align: center;
    background: linear-gradient(180deg, rgba(244,237,225,0.95) 60%, transparent);
    opacity: 0; transform: translateY(-8px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
  }
  .demo-anchor.visible { opacity: 1; transform: none; }
  .demo-anchor-label {
    font-family: var(--mono); font-size: 7px; letter-spacing: 2.5px;
    text-transform: uppercase; color: var(--ink-faint); margin-bottom: 4px;
  }
  .demo-anchor-text {
    font-family: var(--serif); font-style: italic;
    font-size: 13px; color: var(--ink-soft); line-height: 1.35;
    max-height: 2.7em; overflow: hidden;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  }

  /* swipe hints */
  .demo-hint {
    position: absolute; top: 50%; transform: translateY(-50%);
    font-family: var(--serif); font-style: italic; font-size: 13px;
    color: var(--ink-faint); opacity: 0; transition: opacity 0.15s;
    pointer-events: none;
  }
  .demo-hint-right { right: 16px; }
  .demo-hint-left { left: 16px; }
  .demo-hint-up { top: auto; bottom: 100%; left: 50%; transform: translateX(-50%); margin-bottom: 16px; }

  /* session map — SVG node graph like "Descubrí recorridos" */
  .demo-map-wrap {
    position: absolute; bottom: 12px; left: 50%; transform: translateX(-50%);
    z-index: 10; pointer-events: none;
  }
  .demo-map-wrap svg { display: block; }

  /* reveal = flipped card (back side) */
  .demo-nav-frame.flipped .demo-nav-front { display: none; }
  .demo-nav-frame.flipped .demo-nav-back { display: flex; }
  .demo-nav-back {
    display: none; flex-direction: column; align-items: center;
    text-align: center; padding: 8px 0;
  }
  .demo-nav-back-label {
    font-family: var(--serif); font-style: italic; font-size: 12px;
    color: var(--ink-faint); letter-spacing: 0.3px;
  }
  .demo-nav-back-author {
    margin-top: 20px; font-family: var(--serif); font-size: 26px;
    color: var(--ink); line-height: 1.15; font-weight: 400; letter-spacing: -0.4px;
  }
  .demo-nav-back-book {
    margin-top: 10px; font-family: var(--serif); font-style: italic;
    font-size: 14px; color: var(--ink-soft); letter-spacing: 0.1px;
  }
  .demo-nav-back-rule {
    margin-top: 24px; width: 24px; height: 0.5px;
    background: var(--ink-faint); opacity: 0.4;
  }
  .demo-nav-back-city {
    margin-top: 16px; font-family: var(--mono); font-size: 9px;
    letter-spacing: 2px; text-transform: uppercase; color: var(--ink-faint);
  }

  /* write prompt after 3 left swipes */
  .demo-write-prompt {
    position: absolute; bottom: 60px; left: 50%; transform: translateX(-50%);
    z-index: 15; background: var(--ink); color: var(--bg);
    padding: 10px 18px; border-radius: 999px; white-space: nowrap;
    font-family: var(--serif); font-style: italic; font-size: 14px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
    opacity: 0; transition: opacity 0.3s; pointer-events: none;
  }
  .demo-write-prompt.visible { opacity: 1; }

  @media (max-width: 720px) {
    .tweaks-panel { right: 10px; bottom: 10px; width: calc(100vw - 20px); }
    .steps .step { min-height: 0; }
    section { padding: 72px 0; }
    .cta-final { padding: 90px var(--pad-x); }
  }