/* ============================================================
   infoxicación — hoja de estilos
   Tokens claro/oscuro, tipografía (serif + sans + mono), layout.
   ============================================================ */

/* ============ TOKENS ============ */
:root {
  --paper:   #F1F2F4;   /* cool paper, deliberately not cream */
  --surface: #FFFFFF;
  --ink:     #16181C;   /* near-black, slight cool bias */
  --ink-soft:#585C64;
  --ink-faint:#8A8E96;
  --rule:    #DBDDE2;
  --rule-soft:#E7E8EC;
  --signal:  #D62839;   /* carmine — heritage of the old red, refined */
  --signal-ink:#B01F2E;

  --serif: Georgia, "Iowan Old Style", "Times New Roman", Times, serif;
  --sans:  "Helvetica Neue", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Arial, sans-serif;
  --mono:  "SF Mono", SFMono-Regular, ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace;

  --maxw: 1180px;
  --gap: clamp(1.5rem, 4vw, 3rem);
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper:   #101114;
    --surface: #17191D;
    --ink:     #ECEEF1;
    --ink-soft:#A2A6AE;
    --ink-faint:#6C707A;
    --rule:    #2A2D33;
    --rule-soft:#212328;
    --signal:  #FF5147;
    --signal-ink:#FF6B62;
  }
}
:root[data-theme="light"] {
  --paper:#F1F2F4; --surface:#FFFFFF; --ink:#16181C; --ink-soft:#585C64;
  --ink-faint:#8A8E96; --rule:#DBDDE2; --rule-soft:#E7E8EC; --signal:#D62839; --signal-ink:#B01F2E;
}
:root[data-theme="dark"] {
  --paper:#101114; --surface:#17191D; --ink:#ECEEF1; --ink-soft:#A2A6AE;
  --ink-faint:#6C707A; --rule:#2A2D33; --rule-soft:#212328; --signal:#FF5147; --signal-ink:#FF6B62;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(1.1rem, 4vw, 2.4rem); }

a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--signal); outline-offset: 3px; border-radius: 2px;
}

.mono { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.09em; }

/* ============ TOP BAR ============ */
.topbar {
  border-bottom: 1px solid var(--rule);
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
}
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; height: 62px; gap: 1.2rem; }
.brand { display: inline-flex; align-items: center; gap: 0.5rem; font-weight: 800; letter-spacing: -0.03em; font-size: 1.24rem; }
.brand .mark {
  width: 12px; height: 12px; background: var(--signal); border-radius: 2px;
  display: inline-block; transform: translateY(1px);
}
.nav { display: flex; align-items: center; gap: clamp(0.8rem, 2vw, 1.7rem); }
.nav a { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.7rem; color: var(--ink-soft); }
.nav a:hover { color: var(--ink); }
.nav a.btn-sub {
  font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.7rem;
  background: var(--ink); color: var(--paper); padding: 0.5rem 0.85rem; border-radius: 4px; font-weight: 600;
}
.nav a.btn-sub:hover { background: var(--signal); color: #fff; }
/* theme toggle */
.theme-toggle { background: transparent; border: 1px solid var(--rule); color: var(--ink-soft); width: 34px; height: 34px; border-radius: 6px; display: inline-flex; align-items: center; justify-content: center; cursor: pointer; padding: 0; }
.theme-toggle:hover { color: var(--signal); border-color: var(--signal); }
.theme-toggle svg { width: 17px; height: 17px; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: inline-flex; }
@media (prefers-color-scheme: dark) { .theme-toggle .icon-sun { display: inline-flex; } .theme-toggle .icon-moon { display: none; } }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: inline-flex; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: inline-flex; }

/* ============ HERO / MASTHEAD ============ */
.hero { border-bottom: 1px solid var(--rule); }
.hero .wrap { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: var(--gap); align-items: stretch;
  padding-top: clamp(2.6rem, 6vw, 4.6rem); padding-bottom: clamp(2.4rem, 5vw, 4rem); }
.eyebrow { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.7rem; color: var(--signal); margin: 0 0 1.1rem; }
.eyebrow::before { content: "—— "; color: var(--ink-faint); }
h1.thesis {
  font-family: var(--serif); font-weight: 700; font-size: clamp(2.3rem, 5.4vw, 3.9rem);
  line-height: 1.03; letter-spacing: -0.015em; margin: 0 0 1.2rem; text-wrap: balance;
}
h1.thesis em { font-style: italic; color: var(--signal); }
.lede { font-size: clamp(1.02rem, 1.5vw, 1.16rem); color: var(--ink-soft); max-width: 46ch; margin: 0 0 1.8rem; }
.lede b { color: var(--ink); font-weight: 600; }

.signup { border: 1px solid var(--rule); background: var(--surface); border-radius: 8px; padding: 1.1rem 1.15rem; max-width: 460px; }
.signup .label { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.66rem; color: var(--ink-faint); margin-bottom: 0.7rem; }
.signup .label b { color: var(--signal); }
.form-row { display: flex; gap: 0.5rem; }
.form-row input {
  flex: 1; min-width: 0; font-family: var(--sans); font-size: 0.95rem; color: var(--ink);
  background: var(--paper); border: 1px solid var(--rule); border-radius: 5px; padding: 0.62rem 0.75rem;
}
.form-row input::placeholder { color: var(--ink-faint); }
.form-row button {
  font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.72rem; font-weight: 600;
  background: var(--signal); color: #fff; border: none; border-radius: 5px; padding: 0 1.05rem; cursor: pointer; white-space: nowrap;
}
.form-row button:hover { background: var(--signal-ink); }
.signup .fine { font-size: 0.74rem; color: var(--ink-faint); margin: 0.65rem 0 0; }

/* hero graphic */
.hero-panel { position: relative; border: 1px solid var(--rule); border-radius: 8px; background: var(--surface); overflow: hidden; min-height: 300px; display: flex; flex-direction: column; }
.hero-panel .cap { position: absolute; z-index: 2; left: 14px; bottom: 12px; font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.1em; font-size: 0.64rem; color: var(--ink-faint); }
.hero-panel .cap .from { color: var(--ink-faint); }
.hero-panel .cap .to { color: var(--signal); }
.hero-panel .cap .arw { color: var(--ink-faint); margin: 0 0.4em; }
#orden { display: block; width: 100%; height: 100%; flex: 1; }
.panel-word { position: absolute; inset: 0; z-index: 1; display: flex; align-items: center; justify-content: center; padding: 0 1.2rem; text-align: center; pointer-events: none; font-family: var(--sans); font-weight: 800; letter-spacing: -0.045em; font-size: clamp(1.9rem, 4.6vw, 2.9rem); line-height: 1; color: var(--ink); }
.panel-word .x { color: var(--signal); }

/* ============ SECTION SCAFFOLD ============ */
section { padding: clamp(2.6rem, 5vw, 4rem) 0; }
.sec-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: 1.8rem; border-bottom: 1px solid var(--rule); padding-bottom: 0.9rem; }
.sec-head h2 { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.82rem; font-weight: 700; margin: 0; color: var(--ink); }
.sec-head h2 span { color: var(--ink-faint); font-weight: 400; }
.sec-head .more { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.68rem; color: var(--signal); }
.sec-head .more:hover { color: var(--signal-ink); }

/* ============ ARTICLE FEED ============ */
.feed { display: grid; grid-template-columns: 1fr; }
.post { display: grid; grid-template-columns: 130px 1fr auto; gap: 1.4rem; align-items: start; padding: 1.4rem 0; border-bottom: 1px solid var(--rule-soft); }
.post:hover { background: color-mix(in srgb, var(--signal) 4%, transparent); }
.post .date { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.04em; color: var(--ink-faint); text-transform: uppercase; padding-top: 0.35rem; }
.post .body h3 { font-family: var(--serif); font-weight: 700; font-size: 1.42rem; line-height: 1.18; letter-spacing: -0.01em; margin: 0 0 0.4rem; text-wrap: balance; }
.post:hover .body h3 { color: var(--signal-ink); }
.post .body p { margin: 0 0 0.6rem; color: var(--ink-soft); font-size: 0.96rem; max-width: 62ch; }
.tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tag { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.62rem; color: var(--ink-soft); border: 1px solid var(--rule); border-radius: 100px; padding: 0.18rem 0.55rem; }
.post .arrow { font-size: 1.1rem; color: var(--ink-faint); padding-top: 0.3rem; transition: transform 0.18s ease; }
.post:hover .arrow { color: var(--signal); transform: translateX(3px); }

/* ============ TEMAS ============ */
.temas { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.chip { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.72rem; color: var(--ink); background: var(--surface); border: 1px solid var(--rule); border-radius: 6px; padding: 0.55rem 0.9rem; }
.chip:hover { border-color: var(--signal); color: var(--signal-ink); }
.chip .n { color: var(--ink-faint); margin-left: 0.5em; font-size: 0.66rem; }

/* ============ LADDER / TRABAJA CONMIGO ============ */
.ladder-intro { color: var(--ink-soft); max-width: 60ch; margin: 0 0 1.9rem; font-size: 1rem; }
.ladder { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule); border-radius: 10px; overflow: hidden; }
.rung { background: var(--surface); padding: 1.4rem 1.25rem 1.5rem; display: flex; flex-direction: column; gap: 0.55rem; position: relative; transition: background 0.18s ease; }
.rung:hover { background: color-mix(in srgb, var(--signal) 5%, var(--surface)); }
.rung .num { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.05em; color: var(--ink-faint); }
.rung .num b { color: var(--signal); }
.rung h4 { font-family: var(--sans); font-weight: 700; font-size: 1.08rem; letter-spacing: -0.01em; margin: 0.1rem 0 0; }
.rung p { margin: 0; color: var(--ink-soft); font-size: 0.88rem; flex: 1; }
.rung .price { font-family: var(--mono); font-size: 0.64rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-faint); }
.rung .cta { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.07em; font-size: 0.68rem; font-weight: 600; color: var(--signal); margin-top: 0.4rem; display: inline-flex; align-items: center; gap: 0.35rem; }
.rung .cta:hover { color: var(--signal-ink); }
.rung .cta::after { content: "→"; transition: transform 0.16s ease; }
.rung .cta:hover::after { transform: translateX(3px); }
.rung .step-bar { position: absolute; top: 0; left: 0; height: 3px; background: var(--signal); }

/* ============ ABOUT (teaser en la home) ============ */
.about { display: grid; grid-template-columns: 200px 1fr; gap: var(--gap); align-items: center; }
.portrait {
  aspect-ratio: 1; border-radius: 10px; border: 1px solid var(--rule);
  background:
    radial-gradient(120% 120% at 30% 20%, color-mix(in srgb, var(--signal) 16%, var(--surface)), var(--surface) 60%);
  display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden;
}
.portrait img { width: 100%; height: 100%; object-fit: cover; }
.portrait .initials { font-family: var(--serif); font-weight: 700; font-size: 3.4rem; color: var(--ink); letter-spacing: -0.02em; }
.portrait .ph { position: absolute; bottom: 8px; right: 10px; font-family: var(--mono); font-size: 0.55rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-faint); }
.about-body h2 { font-family: var(--serif); font-weight: 700; font-size: clamp(1.5rem, 3vw, 2.1rem); line-height: 1.12; margin: 0 0 0.8rem; letter-spacing: -0.015em; text-wrap: balance; }
.about-body p { color: var(--ink-soft); max-width: 60ch; margin: 0 0 0.7rem; }
.about-body p b { color: var(--ink); font-weight: 600; }
.about-cta { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.07em; font-size: 0.7rem; color: var(--signal); font-weight: 600; }

/* ============ CONTACTO ============ */
.contact-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: var(--gap); align-items: start; }
.contact-intro p { color: var(--ink-soft); font-size: 1.05rem; max-width: 34ch; margin: 0; }
.contact-form { display: flex; flex-direction: column; gap: 1rem; max-width: 620px; }
.cf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.cf-field { display: flex; flex-direction: column; gap: 0.4rem; }
.cf-label { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.66rem; color: var(--ink-faint); }
.contact-form input, .contact-form select, .contact-form textarea { font-family: var(--sans); font-size: 1rem; color: var(--ink); background: var(--surface); border: 1px solid var(--rule); border-radius: 6px; padding: 0.7rem 0.8rem; width: 100%; }
.contact-form textarea { resize: vertical; min-height: 120px; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { outline: 2px solid var(--signal); outline-offset: 2px; }
.cf-submit { align-self: flex-start; font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.07em; font-size: 0.74rem; font-weight: 600; background: var(--signal); color: #fff; border: none; border-radius: 6px; padding: 0.78rem 1.5rem; cursor: pointer; }
.cf-submit:hover { background: var(--signal-ink); }
.cf-note { font-size: 0.8rem; color: var(--ink-faint); margin: 0.2rem 0 0; }
@media (max-width: 720px) { .contact-grid { grid-template-columns: 1fr; } .cf-row { grid-template-columns: 1fr; } }

/* ============ PÁGINA / PROSA (acerca de, etc.) ============ */
.page-hero { border-bottom: 1px solid var(--rule); padding: clamp(2.6rem, 6vw, 4.4rem) 0 clamp(1.8rem, 4vw, 2.6rem); }
.page-title { font-family: var(--serif); font-weight: 700; font-size: clamp(1.9rem, 4.6vw, 3rem); line-height: 1.08; letter-spacing: -0.015em; margin: 0.5rem 0 0; text-wrap: balance; max-width: 22ch; }
.page { padding: clamp(2.2rem, 5vw, 3.4rem) 0; }
.prose { max-width: 720px; font-size: 1.08rem; line-height: 1.75; color: var(--ink); }
.prose p { margin: 0 0 1.2rem; }
.prose p b { color: var(--ink); font-weight: 600; }
.prose em { color: var(--signal); font-style: italic; }
.prose .lead { font-size: 1.2rem; line-height: 1.6; }
.cred-list { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0 0 2rem; padding: 0; list-style: none; }
.cred-list li { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.64rem; color: var(--ink-soft); border: 1px solid var(--rule); border-radius: 100px; padding: 0.32rem 0.7rem; }
.page-cta { margin-top: 2.4rem; padding-top: 1.6rem; border-top: 1px solid var(--rule); display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
.page-cta a { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.07em; font-size: 0.72rem; font-weight: 600; }
.page-cta .primary { color: #fff; background: var(--signal); padding: 0.72rem 1.3rem; border-radius: 6px; }
.page-cta .primary:hover { background: var(--signal-ink); }
.page-cta .secondary { color: var(--signal); }
.page-cta .secondary:hover { color: var(--signal-ink); }

/* ============ FOOTER ============ */
footer { border-top: 1px solid var(--rule); padding: 2.4rem 0 3rem; margin-top: 1rem; }
.foot { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 1rem; }
.foot .fbrand { font-weight: 800; letter-spacing: -0.03em; font-size: 1.05rem; display: inline-flex; align-items: center; gap: 0.45rem; }
.foot .fbrand .mark { width: 10px; height: 10px; background: var(--signal); border-radius: 2px; }
.foot .flinks { display: flex; flex-wrap: wrap; gap: 1.1rem; }
.foot .flinks a { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.07em; font-size: 0.66rem; color: var(--ink-soft); }
.foot .flinks a:hover { color: var(--signal); }
.foot .meta { font-family: var(--mono); font-size: 0.64rem; color: var(--ink-faint); letter-spacing: 0.04em; width: 100%; text-transform: uppercase; }

/* ============ REVEAL ============ */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ============ RESPONSIVE ============ */
@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-panel { min-height: 200px; order: -1; }
  .ladder { grid-template-columns: 1fr 1fr; }
  .nav a:not(.btn-sub) { display: none; }
  .about { grid-template-columns: 1fr; text-align: left; }
  .portrait { max-width: 160px; }
}
@media (max-width: 560px) {
  .post { grid-template-columns: 1fr; gap: 0.55rem; }
  .post .date { padding-top: 0; }
  .post .arrow { display: none; }
  .ladder { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  * { scroll-behavior: auto; }
}