/* ===========================================================
   ÓSCAR SÁNCHEZ — Portfolio
   BRUTALIST / INDUSTRIAL — paper + ink + vermilion.
   HTML/CSS/JS puro. Sin dependencias ni build.
   =========================================================== */

:root {
  --paper:    #e8e6e0;
  --paper-2:  #dfddd4;
  --paper-3:  #d3d0c5;
  --ink:      #111110;
  --ink-soft: #34332e;
  --muted:    #59574e;
  --accent:   #f02d00;        /* violent vermilion */
  --accent-2: #ffd400;        /* hazard yellow (acentos puntuales) */
  --on-acc:   #fff7f2;

  --bd: 2px;
  --shadow: 7px 7px 0 var(--ink);
  --shadow-sm: 4px 4px 0 var(--ink);
  --maxw: 1180px;
  --ease: cubic-bezier(0.2, 0.9, 0.25, 1);

  --display: "Big Shoulders Display", "Arial Narrow", sans-serif;
  --mono: "Space Mono", ui-monospace, monospace;
  --sans: "Archivo", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: var(--sans); font-size: 16px; line-height: 1.6;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
@media (pointer: fine) { body { cursor: none; } }

a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; line-height: 0.92; }
p { margin: 0 0 1rem; }
ul, ol { margin: 0; padding: 0; list-style: none; }
strong { font-weight: 700; }
em { font-style: normal; color: var(--accent); font-weight: 700; }
code { font-family: var(--mono); font-size: 0.86em; background: var(--ink); color: var(--accent-2); padding: 0.05em 0.35em; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; }

/* ===================== Grain ===================== */
.grain {
  position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: 0.5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.45'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

/* ===================== Cursor ===================== */
.cursor, .cursor-ring { position: fixed; top: 0; left: 0; z-index: 9999; pointer-events: none; opacity: 0; }
.cursor { width: 7px; height: 7px; background: var(--accent); transform: translate(-50%, -50%); }
.cursor-ring {
  width: 30px; height: 30px; border: var(--bd) solid var(--ink);
  transform: translate(-50%, -50%);
  transition: width 0.18s var(--ease), height 0.18s var(--ease), background 0.18s var(--ease), border-color 0.18s var(--ease);
}
.cursor-ring.is-hot { width: 46px; height: 46px; background: var(--accent); border-color: var(--accent); mix-blend-mode: multiply; }
@media (pointer: coarse) { .cursor, .cursor-ring { display: none; } }

/* ===================== Progress ===================== */
.progress { position: fixed; top: 0; left: 0; height: 5px; width: 0; z-index: 200; background: var(--accent); }

/* ===================== Ticker ===================== */
.ticker {
  position: relative; z-index: 60; background: var(--ink); color: var(--paper);
  overflow: hidden; border-bottom: var(--bd) solid var(--ink); white-space: nowrap;
}
.ticker__track { display: inline-flex; will-change: transform; animation: marquee 26s linear infinite; }
.ticker__track span {
  font-family: var(--mono); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.18em;
  padding: 0.5rem 0; flex-shrink: 0;
}
.ticker i { color: var(--accent); font-style: normal; margin: 0 0.55rem; }
@keyframes marquee { to { transform: translateX(-50%); } }
.ticker:hover .ticker__track { animation-play-state: paused; }

/* ===================== Nav ===================== */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--paper); border-bottom: var(--bd) solid var(--ink);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.nav__brand { display: flex; align-items: center; gap: 0.7rem; }
.nav__mark { display: block; width: 34px; height: 34px; object-fit: contain; }
.nav__name { font-family: var(--display); font-weight: 800; font-size: 1.1rem; letter-spacing: 0.02em; }
.nav__links { display: flex; gap: 1.8rem; }
.nav__links a {
  font-family: var(--mono); font-size: 0.82rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em;
  display: inline-flex; align-items: baseline; gap: 0.4rem; position: relative; padding: 0.2rem 0;
}
.nav__links a i { font-style: normal; font-size: 0.62rem; color: var(--accent); }
.nav__links a::after { content: ""; position: absolute; left: 0; bottom: -2px; height: var(--bd); width: 0; background: var(--accent); transition: width 0.22s var(--ease); }
.nav__links a:hover::after { width: 100%; }
.nav__right { display: flex; align-items: center; gap: 0.75rem; }
.nav__toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px 4px; }
@media (pointer: fine) { .nav__toggle { cursor: none; } }
.nav__toggle span { width: 24px; height: var(--bd); background: var(--ink); transition: transform 0.3s var(--ease), opacity 0.3s var(--ease); }
.nav.is-open .nav__toggle span:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
.nav.is-open .nav__toggle span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }

/* ===================== Botones ===================== */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--mono); font-weight: 700; font-size: 0.84rem; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 0.7rem 1.2rem; border: var(--bd) solid var(--ink); background: var(--paper); color: var(--ink);
  cursor: inherit; transition: transform 0.16s var(--ease), box-shadow 0.16s var(--ease), background 0.16s var(--ease), color 0.16s var(--ease);
}
.btn--sm { padding: 0.5rem 0.85rem; font-size: 0.76rem; }
.btn--solid { background: var(--ink); color: var(--paper); box-shadow: var(--shadow-sm); }
.btn--solid:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--accent); background: var(--accent); border-color: var(--accent); color: var(--on-acc); }
.btn--line { box-shadow: var(--shadow-sm); }
.btn--line:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--ink); background: var(--ink); color: var(--paper); }

/* ===================== Tags ===================== */
.tag {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--mono); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.35rem 0.7rem; border: var(--bd) solid var(--ink); background: var(--paper);
}
.tag .dot { width: 8px; height: 8px; background: var(--accent); animation: pulse 1.4s steps(2) infinite; }
.tag--ghost { color: var(--muted); }
.tag--accent { background: var(--accent); color: var(--on-acc); border-color: var(--accent); }
@keyframes pulse { 50% { opacity: 0.25; } }

/* ===================== Hero ===================== */
.hero { padding: 3.5rem 0 0; position: relative; }
.hero__top { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.6rem; }
.hero__title {
  font-family: var(--display); font-weight: 900; text-transform: uppercase;
  font-size: clamp(4.5rem, 19vw, 17rem); letter-spacing: -0.015em; line-height: 0.82;
}
.hero__title .line { display: block; overflow: hidden; }
.hero__title .line > span { display: block; }
.hero__title b.block {
  display: inline-block; width: 0.46em; height: 0.46em; background: var(--accent);
  margin-left: 0.18em; vertical-align: baseline;
}
.hero__band {
  display: flex; align-items: center; flex-wrap: wrap; gap: 0.6rem; margin: 1rem 0 0;
  font-family: var(--mono); font-weight: 700; font-size: clamp(0.8rem, 1.6vw, 1.05rem);
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink);
  border-top: var(--bd) solid var(--ink); border-bottom: var(--bd) solid var(--ink); padding: 0.55rem 0;
}
.hero__band i { color: var(--accent); font-style: normal; }
.hero__grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 2.5rem; margin-top: 2.5rem; align-items: start; }
.hero__lead p { font-size: 1.12rem; color: var(--ink-soft); max-width: 42ch; }
.hero__actions { display: flex; gap: 0.85rem; margin: 1.75rem 0; flex-wrap: wrap; }
.hero__role { font-family: var(--mono); font-size: 0.92rem; color: var(--muted); margin: 0; }
.hero__role .prompt { color: var(--accent); font-weight: 700; }
.caret { color: var(--accent); animation: blink 1.05s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ops console */
.console {
  border: var(--bd) solid var(--ink); background: #0c0c0b; box-shadow: var(--shadow);
}
.console__bar { display: flex; align-items: center; justify-content: space-between; padding: 0.55rem 0.9rem; border-bottom: var(--bd) solid #2a2a26; background: #161613; }
.console__name { font-family: var(--mono); font-size: 0.74rem; font-weight: 700; color: #d9d6cc; letter-spacing: 0.04em; }
.console__dots { display: flex; gap: 0.4rem; }
.console__dots i { width: 11px; height: 11px; background: #3a3a34; }
.console__dots i:first-child { background: var(--accent); }
.console__body {
  font-family: var(--mono); font-size: 0.82rem; line-height: 1.95; padding: 1.2rem 1.3rem;
  min-height: 290px; color: #c7c4ba; white-space: pre-wrap; word-break: break-word;
}
.console__body .c-cmd { color: #f1efe7; }
.console__body .c-cmd .p { color: var(--accent-2); }
.console__body .c-ok { color: #5fe08a; }
.console__body .c-info { color: #7fb8ff; }
.console__body .c-dim { color: #7a776d; }
.console__cursor { display: inline-block; width: 9px; height: 1em; background: var(--accent); vertical-align: text-bottom; animation: blink 1.05s steps(1) infinite; }

/* hazard strip */
.hazard {
  height: 22px; margin-top: 4rem;
  background: repeating-linear-gradient(-45deg, var(--ink) 0 22px, var(--accent-2) 22px 44px);
  border-top: var(--bd) solid var(--ink); border-bottom: var(--bd) solid var(--ink);
}

/* ===================== Section ===================== */
.section { padding: 5.5rem 0; }
.head { margin-bottom: 3rem; position: relative; }
.head__num {
  font-family: var(--display); font-weight: 900; font-size: clamp(3rem, 8vw, 6rem);
  color: transparent; -webkit-text-stroke: 2px var(--ink-soft); line-height: 1; display: block;
  opacity: 0.28; margin-bottom: -0.3em;
}
.head__label { font-family: var(--mono); font-size: 0.8rem; font-weight: 700; letter-spacing: 0.1em; color: var(--accent); }
.head__title {
  font-family: var(--display); font-weight: 800; text-transform: uppercase;
  font-size: clamp(2.1rem, 5.5vw, 4rem); letter-spacing: -0.01em; margin-top: 0.4rem;
}

/* ===================== Sobre mí ===================== */
.about { display: grid; grid-template-columns: 1fr 1.1fr; gap: 2.5rem; align-items: start; }
.about__text p { font-size: 1.12rem; color: var(--ink-soft); }
.about__text p:first-child { font-size: 1.3rem; line-height: 1.4; }
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: var(--bd) solid var(--ink); border-left: var(--bd) solid var(--ink); }
.feature {
  padding: 1.5rem; border-right: var(--bd) solid var(--ink); border-bottom: var(--bd) solid var(--ink);
  background: var(--paper); position: relative; transition: background 0.2s var(--ease), color 0.2s var(--ease);
}
.feature__n { font-family: var(--mono); font-weight: 700; font-size: 0.8rem; color: var(--accent); }
.feature h3 { font-family: var(--display); font-weight: 800; font-size: 1.4rem; margin: 0.7rem 0 0.45rem; }
.feature p { font-size: 0.92rem; color: var(--muted); margin: 0; line-height: 1.5; }
.feature:hover { background: var(--ink); color: var(--paper); }
.feature:hover p { color: #b9b6ab; }
.feature:hover .feature__n { color: var(--accent-2); }

/* ===================== Proyecto destacado ===================== */
.featured {
  display: grid; grid-template-columns: 1.65fr 1fr;
  border: var(--bd) solid var(--ink); box-shadow: var(--shadow); background: var(--paper); margin-bottom: 2rem;
}
.featured__body { padding: 2.25rem; }
.featured__title { font-family: var(--display); font-weight: 900; font-size: clamp(2.8rem, 7vw, 5rem); text-transform: uppercase; letter-spacing: -0.02em; margin: 1rem 0 0.6rem; }
.featured__lead { font-size: 1.15rem; font-weight: 500; margin-bottom: 1rem; }
.featured__desc { font-size: 0.96rem; color: var(--ink-soft); margin-bottom: 1.5rem; }
.checks { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1.5rem; }
.checks li { position: relative; padding-left: 1.7rem; font-size: 0.95rem; color: var(--ink-soft); }
.checks li::before {
  content: "✓"; position: absolute; left: 0; top: 1px; width: 19px; height: 19px;
  display: grid; place-items: center; font-size: 0.72rem; font-weight: 700;
  background: var(--accent); color: var(--on-acc);
}
.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.5rem; }
.chips li {
  font-family: var(--mono); font-size: 0.72rem; font-weight: 700; padding: 0.28rem 0.55rem;
  border: var(--bd) solid var(--ink); background: var(--paper); transition: background 0.16s var(--ease), color 0.16s var(--ease);
}
.chips li:hover { background: var(--ink); color: var(--paper); }
.chips--sm { margin-bottom: 0; }
.chips--sm li { font-size: 0.68rem; padding: 0.22rem 0.45rem; }

.featured__aside { padding: 2.25rem; border-left: var(--bd) solid var(--ink); background: var(--paper-2); }
.featured__aside-title { font-family: var(--mono); font-size: 0.76rem; font-weight: 700; letter-spacing: 0.06em; color: var(--muted); margin-bottom: 1.4rem; }
.flow { display: flex; flex-direction: column; }
.flow li {
  display: flex; align-items: flex-start; gap: 0.8rem; font-size: 0.9rem; color: var(--ink-soft);
  padding: 0.8rem 0; border-top: var(--bd) solid var(--ink);
}
.flow li:last-child { border-bottom: var(--bd) solid var(--ink); }
.flow li b {
  flex-shrink: 0; font-family: var(--mono); font-size: 0.72rem; font-weight: 700; color: var(--accent);
}

/* ===================== Cards ===================== */
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.card {
  padding: 1.75rem; border: var(--bd) solid var(--ink); background: var(--paper); box-shadow: var(--shadow-sm);
  transition: transform 0.16s var(--ease), box-shadow 0.16s var(--ease);
}
.card:hover { transform: translate(-3px, -3px); box-shadow: 8px 8px 0 var(--accent); }
.card--ghost { border-style: dashed; box-shadow: none; opacity: 0.78; }
.card--ghost:hover { transform: none; box-shadow: none; }
.card__top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.1rem; }
.card__tag { font-family: var(--mono); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.06em; background: var(--ink); color: var(--paper); padding: 0.2rem 0.5rem; }
.card__arrow { font-size: 1.2rem; color: var(--accent); }
.card__title { font-family: var(--display); font-weight: 800; font-size: 1.55rem; margin-bottom: 0.5rem; }
.card__desc { font-size: 0.92rem; color: var(--ink-soft); margin-bottom: 1.1rem; }

/* ===================== Timeline ===================== */
.timeline { display: grid; gap: 0; border-top: var(--bd) solid var(--ink); }
.tl { padding: 1.8rem 0; border-bottom: var(--bd) solid var(--ink); position: relative; transition: padding-left 0.2s var(--ease); }
.tl:hover { padding-left: 1.2rem; }
.tl::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 0; background: var(--accent); transition: width 0.2s var(--ease); }
.tl:hover::before { width: 5px; }
.tl__head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 0.5rem; }
.tl__head h3 { font-family: var(--display); font-weight: 800; font-size: 1.5rem; text-transform: uppercase; }
.tl__date { font-family: var(--mono); font-size: 0.78rem; font-weight: 700; color: var(--muted); }
.tl__org { font-family: var(--mono); font-weight: 700; font-size: 0.88rem; color: var(--accent); margin: 0.4rem 0 0.7rem; }
.tl__desc { color: var(--ink-soft); font-size: 0.96rem; margin-bottom: 1rem; max-width: 75ch; }

/* ===================== Stack ===================== */
.stack { display: grid; grid-template-columns: repeat(3, 1fr); border-top: var(--bd) solid var(--ink); border-left: var(--bd) solid var(--ink); }
.stack__col { padding: 1.6rem; border-right: var(--bd) solid var(--ink); border-bottom: var(--bd) solid var(--ink); }
.stack__title { font-family: var(--mono); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.06em; color: var(--accent); margin-bottom: 1.1rem; padding-bottom: 0.85rem; border-bottom: var(--bd) solid var(--ink); }
.stack__col ul li { font-size: 0.96rem; color: var(--ink-soft); padding: 0.4rem 0 0.4rem 1.4rem; position: relative; }
.stack__col ul li::before { content: "▪"; position: absolute; left: 0; color: var(--accent); font-size: 0.9rem; }

/* ===================== Contacto ===================== */
.section--contact { padding-bottom: 6rem; }
.cta {
  border: var(--bd) solid var(--ink); background: var(--ink); color: var(--paper);
  padding: 3.5rem 2.5rem; box-shadow: var(--shadow); text-align: center; position: relative; overflow: hidden;
}
.cta::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0.5;
  background: radial-gradient(ellipse 50% 80% at 50% 120%, rgba(240,45,0,0.45), transparent 70%);
}
.cta .head__label { position: relative; }
.cta__title { font-family: var(--display); font-weight: 900; font-size: clamp(2.5rem, 7vw, 5.5rem); text-transform: uppercase; letter-spacing: -0.02em; margin: 0.6rem 0 0; position: relative; }
.cta__lead { color: #c5c2b8; max-width: 50ch; margin: 1.2rem auto 2.2rem; font-size: 1.1rem; position: relative; }
.cta__links { display: flex; flex-direction: column; gap: 0; max-width: 560px; margin: 0 auto; position: relative; border-top: var(--bd) solid #3a3a34; }
.cta__link {
  display: grid; grid-template-columns: 110px 1fr auto; align-items: center; gap: 1rem; text-align: left;
  padding: 1rem 0.5rem; border-bottom: var(--bd) solid #3a3a34; transition: padding 0.18s var(--ease), background 0.18s var(--ease);
}
.cta__link:hover { background: var(--accent); padding-left: 1.2rem; padding-right: 1.2rem; }
.cta__k { font-family: var(--mono); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; color: var(--accent-2); }
.cta__link:hover .cta__k { color: var(--on-acc); }
.cta__v { font-family: var(--mono); font-size: 0.95rem; }
.cta__a { font-size: 1.2rem; color: var(--accent); }
.cta__link:hover .cta__a { color: var(--on-acc); }

/* ===================== Footer ===================== */
.footer { border-top: var(--bd) solid var(--ink); padding: 3rem 0 2rem; overflow: hidden; }
.footer__inner { display: flex; flex-direction: column; gap: 1.5rem; }
.footer__big {
  font-family: var(--display); font-weight: 900; font-size: clamp(3rem, 13vw, 11rem); text-transform: uppercase;
  letter-spacing: -0.02em; line-height: 0.85; color: transparent; -webkit-text-stroke: 2px var(--ink); white-space: nowrap;
}
.footer__meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem; font-family: var(--mono); font-size: 0.76rem; font-weight: 700; letter-spacing: 0.04em; color: var(--muted); }

/* ===================== Reveal / load ===================== */
[data-reveal] { opacity: 0; transform: translateY(26px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
[data-reveal].is-visible { opacity: 1; transform: none; }

[data-load] > span, [data-load]:not(.line) { will-change: transform, opacity; }
.hero__title .line > span { transform: translateY(110%); transition: transform 0.9s var(--ease); }
.hero.is-loaded .hero__title .line > span { transform: translateY(0); }
.hero__title .line:nth-child(2) > span { transition-delay: 0.08s; }
[data-load]:not(.line) { opacity: 0; transform: translateY(20px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.hero.is-loaded [data-load]:not(.line) { opacity: 1; transform: none; }
.hero.is-loaded .hero__band { transition-delay: 0.18s; }
.hero.is-loaded .hero__lead { transition-delay: 0.26s; }
.hero.is-loaded .console { transition-delay: 0.34s; }

/* ===================== Responsive ===================== */
@media (max-width: 940px) {
  .hero__grid { grid-template-columns: 1fr; }
  .about { grid-template-columns: 1fr; gap: 2rem; }
  .featured { grid-template-columns: 1fr; }
  .featured__aside { border-left: 0; border-top: var(--bd) solid var(--ink); }
}
@media (max-width: 720px) {
  .nav__name { display: none; }
  .nav__links {
    position: fixed; inset: 60px 0 auto 0; flex-direction: column; gap: 0; padding: 0;
    background: var(--paper); border-bottom: var(--bd) solid var(--ink);
    transform: translateY(-130%); transition: transform 0.32s var(--ease); z-index: 99;
  }
  .nav.is-open .nav__links { transform: translateY(0); }
  .nav__links a { padding: 1rem 1.5rem; width: 100%; border-bottom: var(--bd) solid var(--ink); }
  .nav__links a::after { display: none; }
  .nav__toggle { display: flex; }
  .feature-grid { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr; }
  .stack { grid-template-columns: 1fr; }
  .featured__body, .featured__aside { padding: 1.6rem; }
  .section { padding: 4rem 0; }
  .cta__link { grid-template-columns: 90px 1fr auto; gap: 0.6rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  [data-reveal], [data-load]:not(.line) { opacity: 1 !important; transform: none !important; }
  .hero__title .line > span { transform: none !important; }
  .ticker__track { animation: none !important; }
}