/* ==========================================================
   Portafolio · Michael Parra
   ========================================================== */

:root {
  --bg: #f4f1ea;
  --bg-2: #ebe7dd;
  --ink: #1a1a1a;
  --paper: #fbf8f2;
  --text: #1a1a1a;
  --muted: #5b5750;
  --dim: #8a857b;
  --line: rgba(26, 26, 26, .10);
  --line-strong: rgba(26, 26, 26, .22);
  --surface: rgba(26, 26, 26, .03);
  --accent: #d94f2b;
  --accent-rgb: 217, 79, 43;
  --ok: #2f7d4f;
  --ok-rgb: 47, 125, 79;
  --card: rgba(255, 255, 255, .55);
  --shadow-card: 0 1px 0 rgba(0, 0, 0, .04), 0 24px 44px -30px rgba(26, 26, 26, .28);

  --font-head: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --ease: cubic-bezier(.22, 1, .36, 1);
  --radius: 20px;
  --gutter: clamp(20px, 5vw, 48px);
}

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

html { scroll-behavior: auto; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
@supports (overflow: clip) { body { overflow-x: clip; } }

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
img, svg { display: block; max-width: 100%; }
::selection { background: rgba(var(--accent-rgb), .3); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 8px; }

/* Grano de papel */
body::before {
  content: ""; position: fixed; inset: 0; z-index: 200; pointer-events: none; opacity: .5; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .1 0 0 0 0 .1 0 0 0 0 .1 0 0 0 .09 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.container { width: min(1160px, 100% - var(--gutter) * 2); margin-inline: auto; }

[data-lucide], .lucide { width: 1.1em; height: 1.1em; stroke-width: 2; flex: none; }

/* Barra de progreso */
.progress { position: fixed; inset: 0 0 auto 0; height: 2px; z-index: 100; }
.progress span { display: block; height: 100%; width: 100%; background: var(--accent); transform: scaleX(0); transform-origin: 0 50%; }

/* ---------- Textos comunes ---------- */
.grad { color: var(--accent); }

.eyebrow {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--font-mono); font-size: .8rem; letter-spacing: .08em;
  text-transform: uppercase; color: var(--muted);
}
.eyebrow .num { color: var(--accent); }
.eyebrow .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--ok);
  box-shadow: 0 0 0 0 rgba(var(--ok-rgb), .6); animation: pulse 2.4s infinite;
}
@keyframes pulse {
  70% { box-shadow: 0 0 0 10px rgba(var(--ok-rgb), 0); }
  100% { box-shadow: 0 0 0 0 rgba(var(--ok-rgb), 0); }
}

/* Revelado de títulos (la máscara la crea app.js) */
.reveal { display: block; overflow: hidden; padding-bottom: .12em; margin-bottom: -.12em; }
.reveal__in { display: block; will-change: transform; }

.section { position: relative; padding-block: clamp(80px, 12vw, 150px); }
.section__head { margin-bottom: clamp(36px, 6vw, 64px); max-width: 640px; }
.section__title {
  font-family: var(--font-head); font-weight: 600; letter-spacing: -.03em; line-height: 1.05;
  font-size: clamp(2.2rem, 5.5vw, 3.8rem); margin-top: .9rem;
}
.section__sub { color: var(--muted); margin-top: 1rem; max-width: 46ch; }

/* ---------- Botones ---------- */
.btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
  padding: .95rem 1.5rem; border-radius: 999px; font-weight: 500; font-size: .95rem;
  border: 1px solid var(--line-strong); background: var(--surface);
  transition: transform .4s var(--ease), border-color .3s, background .3s, box-shadow .3s;
  overflow: hidden; isolation: isolate;
}
.btn svg { width: 1.1em; height: 1.1em; }
.btn [data-lucide], .btn .lucide { transition: transform .4s var(--ease); }
.btn:hover [data-lucide], .btn:hover .lucide { transform: translate(3px, -3px); }
.btn:active { transform: scale(.97); }

.btn--primary { border-color: transparent; background: var(--ink); color: var(--paper); font-weight: 600; }
.btn--primary:hover { background: var(--accent); box-shadow: 0 14px 34px -14px rgba(var(--accent-rgb), .7); }
.btn--ghost:hover { border-color: var(--ink); background: rgba(26, 26, 26, .05); }
.btn--wa { background: #25d366; border-color: transparent; color: #04170c; font-weight: 600; box-shadow: 0 10px 40px -14px rgba(37, 211, 102, .8); }
.btn--wa:hover { box-shadow: 0 14px 50px -10px rgba(37, 211, 102, .7); }
.btn--small { padding: .6rem 1.2rem; font-size: .88rem; }

/* ---------- Spotlight (brillo que sigue al mouse) ---------- */
[data-spotlight] { position: relative; --mx: 50%; --my: 50%; }
[data-spotlight]::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; z-index: 0;
  background: radial-gradient(420px circle at var(--mx) var(--my), rgba(var(--accent-rgb), .10), transparent 60%);
  opacity: 0; transition: opacity .4s;
}
[data-spotlight]::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; padding: 1px;
  background: radial-gradient(320px circle at var(--mx) var(--my), rgba(var(--accent-rgb), .55), transparent 60%);

  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .4s;
}
[data-spotlight]:hover::before, [data-spotlight]:hover::after { opacity: 1; }

/* ==========================================================
   NAV
   ========================================================== */
.nav {
  position: fixed; top: 16px; left: 50%; transform: translateX(-50%); z-index: 90;
  width: min(940px, 100% - 24px);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .5rem .55rem .5rem .8rem; border-radius: 999px;
  background: rgba(244, 241, 234, .6); border: 1px solid var(--line);
  backdrop-filter: blur(18px) saturate(1.4); -webkit-backdrop-filter: blur(18px) saturate(1.4);
  transition: background .4s, border-color .4s, top .4s var(--ease);
}
.nav.is-scrolled { background: rgba(244, 241, 234, .85); border-color: var(--line-strong); }

.nav__logo { display: flex; align-items: center; gap: .6rem; font-family: var(--font-head); font-weight: 600; }
.nav__logo-mark {
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 11px; font-size: .8rem;
  background: var(--accent); color: var(--paper); transition: transform .5s var(--ease);
}
.nav__logo:hover .nav__logo-mark { transform: rotate(-8deg) scale(1.08); }

.nav__links { position: relative; display: flex; gap: .15rem; }
.nav__link { position: relative; z-index: 1; padding: .5rem .95rem; border-radius: 999px; font-size: .9rem; color: var(--muted); transition: color .3s; }
.nav__link:hover, .nav__link.is-active { color: var(--text); }
.nav__indicator {
  position: absolute; top: 0; left: 0; height: 100%; width: 0; border-radius: 999px;
  background: rgba(26, 26, 26, .07); border: 1px solid var(--line);
  transition: transform .5s var(--ease), width .5s var(--ease), opacity .3s; opacity: 0;
}

.burger { display: none; position: relative; width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--line-strong); background: var(--surface); }
.burger span { position: absolute; left: 12px; right: 12px; height: 2px; border-radius: 2px; background: var(--text); transition: transform .4s var(--ease); }
.burger span:nth-child(1) { top: 16px; }
.burger span:nth-child(2) { top: 24px; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }

/* Menú móvil */
.menu {
  position: fixed; inset: 0; z-index: 80; display: flex; flex-direction: column; justify-content: center; gap: .4rem;
  padding: 100px var(--gutter) 40px; background: rgba(244, 241, 234, .97); backdrop-filter: blur(24px);
  opacity: 0; visibility: hidden; transition: opacity .4s, visibility .4s;
}
.menu.is-open { opacity: 1; visibility: visible; }
.menu__link {
  display: flex; align-items: baseline; gap: 1rem; padding: .5rem 0; border-bottom: 1px solid var(--line);
  font-family: var(--font-head); font-size: clamp(2rem, 9vw, 3rem); font-weight: 600; letter-spacing: -.02em;
  transform: translateY(24px); opacity: 0; transition: transform .4s var(--ease), opacity .4s, color .3s;
}
.menu__link small { font-family: var(--font-mono); font-size: .8rem; color: var(--accent); font-weight: 400; }
.menu__link:hover { color: var(--accent); }
.menu.is-open .menu__link { transform: none; opacity: 1; }
.menu.is-open .menu__link:nth-child(1) { transition-delay: .05s; }
.menu.is-open .menu__link:nth-child(2) { transition-delay: .1s; }
.menu.is-open .menu__link:nth-child(3) { transition-delay: .15s; }
.menu.is-open .menu__link:nth-child(4) { transition-delay: .2s; }
.menu.is-open .menu__link:nth-child(5) { transition-delay: .25s; }
.menu.is-open .menu__link:nth-child(6) { transition-delay: .3s; }

/* ==========================================================
   HERO
   ========================================================== */
.hero { position: relative; min-height: 100svh; display: flex; align-items: center; padding: 130px 0 90px; overflow: hidden; }

.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 75%);
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 75%);
}

.hero__inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: clamp(32px, 5vw, 72px); }

.hero__title { margin: 1.4rem 0 1.6rem; font-family: var(--font-head); font-weight: 700; line-height: .92; letter-spacing: -.045em; font-size: clamp(3.6rem, 11.5vw, 8.6rem); }
.hero__line { display: block; overflow: hidden; padding-bottom: .08em; }
.hero__word { display: inline-block; }
.hero__word--grad { color: var(--accent); padding-right: .05em; }

.hero__lead { max-width: 46ch; color: var(--muted); font-size: clamp(1rem, 1.6vw, 1.2rem); }
.hero__actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2.2rem; }
.hero__loc { display: inline-flex; align-items: center; gap: .5rem; margin-top: 2.2rem; color: var(--dim); font-family: var(--font-mono); font-size: .82rem; }

/* Tarjeta de código */
.hero__card { position: relative; }
.code {
  --line: rgba(255, 255, 255, .1); --dim: #8f897d;
  border-radius: var(--radius); background: var(--ink);
  border: 1px solid var(--ink);
  box-shadow: 0 40px 70px -34px rgba(26, 26, 26, .55);
  transition: transform .3s ease-out; transform-style: preserve-3d;
}
.code__bar { display: flex; align-items: center; gap: 7px; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.code__bar span { width: 10px; height: 10px; border-radius: 50%; background: #ff5f57; }
.code__bar span:nth-child(2) { background: #febc2e; }
.code__bar span:nth-child(3) { background: #28c840; }
.code__bar em { margin-left: auto; font-style: normal; font-family: var(--font-mono); font-size: .75rem; color: var(--dim); }
.code__body { position: relative; z-index: 1; padding: 22px 22px 26px; font-family: var(--font-mono); font-size: clamp(.72rem, 1.1vw, .86rem); line-height: 1.85; color: #d9d3c7; overflow: hidden; white-space: pre-wrap; word-break: break-word; }
.code .k { color: #ff9a62; } .code .v { color: #f2c46d; } .code .p { color: #cdbfa8; } .code .s { color: #a8c99a; }

.chip {
  position: absolute; padding: .45rem .9rem; border-radius: 999px; font-family: var(--font-mono); font-size: .78rem;
  background: var(--paper); border: 1px solid var(--line-strong);
  box-shadow: 0 14px 28px -14px rgba(26, 26, 26, .3);
}
.chip--float { animation: bob 6s ease-in-out infinite; }
.chip--1 { top: -22px; right: 8%; color: var(--accent); }
.chip--2 { bottom: 14%; left: -26px; color: #8a6a1f; animation-delay: -2s; }
.chip--3 { bottom: -20px; right: 12%; color: #4f6b3a; animation-delay: -4s; }
@keyframes bob { 50% { transform: translateY(-10px); } }

.scroll-hint { position: absolute; z-index: 1; left: 50%; bottom: 28px; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: .6rem; font-family: var(--font-mono); font-size: .68rem; letter-spacing: .2em; text-transform: uppercase; color: var(--dim); transition: color .3s; }
.scroll-hint:hover { color: var(--text); }
.scroll-hint i { width: 1px; height: 38px; background: linear-gradient(var(--accent), transparent); transform-origin: top; animation: drip 2.2s var(--ease) infinite; }
@keyframes drip { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }

/* ==========================================================
   SOBRE MÍ
   ========================================================== */
.about { display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: start; }
.about__text p { color: var(--muted); margin-bottom: 1.1rem; max-width: 56ch; }
.about__text .about__big { font-family: var(--font-head); font-size: clamp(1.4rem, 2.6vw, 2rem); line-height: 1.3; letter-spacing: -.02em; color: var(--text); margin-bottom: 1.6rem; }

.about__stats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.stat {
  padding: 1.6rem 1.4rem; border-radius: var(--radius); border: 1px solid var(--line);
  background: var(--card); box-shadow: var(--shadow-card);
  transition: transform .35s var(--ease), border-color .3s, opacity .5s ease-out;
}
.stat:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.stat > * { position: relative; z-index: 1; }
.stat__n { display: block; font-family: var(--font-head); font-size: clamp(2.4rem, 4vw, 3.2rem); line-height: 1; letter-spacing: -.03em; color: var(--accent); }
.stat span:not(.stat__n) { display: block; margin-top: .6rem; font-size: .85rem; color: var(--muted); }

/* ==========================================================
   PROYECTOS
   ========================================================== */
.projects { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(16px, 2.5vw, 28px); perspective: 1200px; }

.project {
  --pc: var(--accent-rgb);
  display: flex; flex-direction: column; padding: clamp(20px, 2.4vw, 28px); border-radius: 24px;
  border: 1px solid var(--line); background: var(--card); box-shadow: var(--shadow-card);
  transform-style: preserve-3d; transition: border-color .4s, box-shadow .5s, transform .25s ease-out, opacity .5s ease-out;
}
.project:hover { border-color: rgba(var(--pc), .45); box-shadow: 0 30px 60px -30px rgba(var(--pc), .45); }
.project > * { position: relative; z-index: 1; }

.project__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.2rem; }
.project__num { font-family: var(--font-mono); font-size: .8rem; color: var(--dim); }
.tag { padding: .3rem .8rem; border-radius: 999px; font-family: var(--font-mono); font-size: .75rem; border: 1px solid rgba(var(--pc), .4); color: rgb(var(--pc)); background: rgba(var(--pc), .08); }
.tag--ico { display: inline-flex; align-items: center; padding: .35rem .5rem; }
.tag--ico img { width: 18px; height: 18px; display: block; }
.project__tags { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .4rem; }
.project__links { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: auto; }
.project__links .project__link { margin-top: 0; }

/* Visual abstracto de cada tarjeta */
.project__visual {
  position: relative; display: grid; place-items: center; height: 150px; margin-bottom: 1.4rem; border-radius: 16px; overflow: hidden;
  background: radial-gradient(circle at 30% 20%, rgba(var(--pc), .18), transparent 60%), rgba(26, 26, 26, .025);
  border: 1px solid var(--line);
}
.project__logos { display: flex; align-items: center; gap: 18px; }
.project__logos em { display: block; }
.project__logos img { width: 54px; height: 54px; display: block; }
.project__logos:has(em:nth-child(2)) img { width: 46px; height: 46px; }
.project__visual span { font-family: var(--font-mono); font-size: 2.6rem; font-weight: 500; color: rgb(var(--pc)); transition: transform .4s var(--ease); }
.project:hover .project__visual span { transform: scale(1.15); }
.project__visual i { position: absolute; border-radius: 50%; border: 1px solid rgba(var(--pc), .3); transition: transform .5s var(--ease), opacity .3s; }
.project__visual i:nth-of-type(1) { width: 90px; height: 90px; }
.project__visual i:nth-of-type(2) { width: 150px; height: 150px; opacity: .6; }
.project__visual i:nth-of-type(3) { width: 220px; height: 220px; opacity: .3; }
.project:hover .project__visual i { transform: scale(1.18); }

.project h3 { font-family: var(--font-head); font-size: clamp(1.4rem, 2.4vw, 1.75rem); font-weight: 600; letter-spacing: -.02em; }
.project p { margin: .5rem 0 1.6rem; color: var(--muted); }

.project__link {
  display: inline-flex; align-items: center; gap: .6rem; margin-top: auto; align-self: flex-start; padding: .65rem 1.1rem; border-radius: 999px;
  font-size: .9rem; font-weight: 500; border: 1px solid var(--line-strong); transition: background .3s, color .3s, border-color .3s;
}
.ico-gh { width: 1.1em; height: 1.1em; }
.project__link [data-lucide], .project__link .lucide { transition: transform .4s var(--ease); }
.project__link:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.project__link:hover .lucide { transform: translate(3px, -3px); }

.projects__more { margin-top: 2.4rem; color: var(--muted); text-align: center; }
.projects__more a { display: inline-flex; align-items: center; gap: .3rem; color: var(--text); border-bottom: 1px solid var(--line-strong); transition: color .3s, border-color .3s; }
.projects__more a:hover { color: var(--accent); border-color: var(--accent); }

/* ==========================================================
   ESTUDIOS
   ========================================================== */
.timeline { position: relative; max-width: 780px; display: grid; gap: 18px; padding-left: 38px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 10px; bottom: 10px; width: 1px; background: linear-gradient(var(--accent), var(--line-strong) 70%, transparent); }

.edu { padding: 1.5rem 1.6rem; border-radius: var(--radius); border: 1px solid var(--line); background: var(--card); box-shadow: var(--shadow-card); transition: transform .35s var(--ease), border-color .3s, opacity .5s ease-out; }
.edu:hover { transform: translateX(6px); border-color: var(--line-strong); }
/* Parallax diagonal: app.js escribe --dx/--dy; el nodo se contra-desplaza para seguir sobre la línea */
.edu { translate: var(--dx, 0px) var(--dy, 0px); will-change: translate; }
.edu .edu__node { translate: calc(var(--dx, 0px) * -1) calc(var(--dy, 0px) * -1); }
.edu > *:not(.edu__node) { position: relative; z-index: 1; }
.edu__node { position: absolute; left: -38px; top: 1.9rem; width: 15px; height: 15px; border-radius: 50%; background: var(--bg); border: 2px solid var(--accent); transition: background .3s, box-shadow .3s; }
.edu:hover .edu__node { background: var(--accent); box-shadow: 0 0 0 5px rgba(var(--accent-rgb), .18); }
.edu--current .edu__node { border-color: var(--ok); background: var(--ok); box-shadow: 0 0 0 5px rgba(var(--ok-rgb), .2); }
.edu--current { border-color: rgba(var(--ok-rgb), .35); }
.edu__head { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem 1rem; margin-bottom: .6rem; }
.edu__place { font-family: var(--font-mono); font-size: .8rem; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); }
.edu h3 { font-family: var(--font-head); font-size: clamp(1.15rem, 2.2vw, 1.5rem); font-weight: 600; letter-spacing: -.015em; line-height: 1.25; }
.edu p { margin-top: .6rem; color: var(--muted); max-width: 60ch; }

.badge { display: inline-flex; align-items: center; gap: .45rem; padding: .2rem .7rem; border-radius: 999px; font-family: var(--font-mono); font-size: .72rem; border: 1px solid var(--line-strong); color: var(--muted); }
.badge--live { color: var(--ok); border-color: rgba(var(--ok-rgb), .4); background: rgba(var(--ok-rgb), .08); }
.badge--live i { width: 6px; height: 6px; border-radius: 50%; background: var(--ok); animation: pulse 2.4s infinite; }

/* ==========================================================
   TECNOLOGÍAS
   ========================================================== */
.filters { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 28px; }
.filter { padding: .55rem 1.1rem; border-radius: 999px; font-size: .88rem; color: var(--muted); border: 1px solid var(--line); background: var(--surface); transition: color .3s, border-color .3s, background .3s, transform .3s var(--ease); }
.filter:hover { color: var(--text); border-color: var(--line-strong); transform: translateY(-2px); }
.filter.is-active { color: var(--paper); background: var(--ink); border-color: var(--ink); }

.tech { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; perspective: 1000px; }
.tile {
  --c: #d94f2b; --mx: 50%; --my: 50%;
  position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .9rem; aspect-ratio: 1 / 0.9; padding: 1rem;
  border-radius: 20px; border: 1px solid var(--line); background: var(--card); box-shadow: var(--shadow-card);
  cursor: default; transform-style: preserve-3d; will-change: transform;
  transition: border-color .4s, box-shadow .5s, background .4s;
}
.tile::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: radial-gradient(200px circle at var(--mx) var(--my), color-mix(in srgb, var(--c) 18%, transparent), transparent 70%);
  opacity: 0; transition: opacity .4s;
}
/* Anillo de luz del color de la tecnología que sigue al cursor */
.tile::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1.5px; pointer-events: none;
  background: radial-gradient(150px circle at var(--mx) var(--my), var(--c), transparent 65%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
  opacity: 0; transition: opacity .4s;
}
.tile:hover { background: rgba(255, 255, 255, .85); box-shadow: 0 28px 44px -26px color-mix(in srgb, var(--c) 55%, transparent); }
.tile:hover::before, .tile:hover::after { opacity: 1; }
.tile > * { position: relative; }
.tile__icon { width: 46px; height: 46px; object-fit: contain; filter: grayscale(1); opacity: .65; transition: filter .4s, opacity .3s, transform .4s var(--ease); }
.tile:hover .tile__icon { filter: none; opacity: 1; transform: translateZ(34px) scale(1.12) rotate(-4deg); }
.tile__name { transition: color .3s, transform .4s var(--ease); }
.tile:hover .tile__name { transform: translateZ(18px); }
.tile__fallback { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 14px; font-family: var(--font-mono); font-weight: 500; color: var(--c); border: 1px solid color-mix(in srgb, var(--c) 50%, transparent); }
.tile__name { font-size: .88rem; font-weight: 500; color: var(--muted); text-align: center; }
.tile:hover .tile__name { color: var(--text); }
.tile.is-gone { display: none; }

/* Marquesina: dos filas en direcciones opuestas, la velocidad sube con el scroll */
.marquee { margin-top: clamp(64px, 9vw, 120px); display: grid; gap: clamp(4px, 1vw, 12px); overflow: hidden; user-select: none; }
.marquee__row { display: flex; width: max-content; }
.marquee__track { display: flex; flex: none; will-change: transform; }
.marquee__track span {
  display: inline-flex; align-items: center; white-space: nowrap; padding-right: .5em;
  font-family: var(--font-head); font-weight: 700; letter-spacing: -.04em; line-height: 1.05;
  font-size: clamp(3rem, 9vw, 7.5rem); color: var(--ink); transition: color .3s, -webkit-text-stroke-color .3s;
}
.marquee__track span::after { content: ""; flex: none; width: .16em; height: .16em; margin-left: .5em; border-radius: 50%; background: var(--accent); }
.marquee__row:nth-child(odd) .marquee__track span { color: transparent; -webkit-text-stroke: 1.5px var(--ink); }
.marquee__row:nth-child(odd) .marquee__track span:hover { color: var(--accent); -webkit-text-stroke-color: var(--accent); }
.marquee__row:nth-child(even) .marquee__track span:hover { color: var(--accent); }

/* Cursor personalizado (solo con mouse) */
.cursor { position: fixed; left: 0; top: 0; z-index: 300; pointer-events: none; opacity: 0; transition: opacity .3s; }
.cursor.is-on { opacity: 1; }
.cursor__dot { position: absolute; width: 6px; height: 6px; margin: -3px 0 0 -3px; border-radius: 50%; background: var(--accent); }
.cursor__ring { position: absolute; width: 36px; height: 36px; margin: -18px 0 0 -18px; border-radius: 50%; border: 1px solid var(--ink); transition: width .35s var(--ease), height .35s var(--ease), margin .35s var(--ease), background .3s, border-color .3s; }
.cursor.is-link .cursor__ring { width: 64px; height: 64px; margin: -32px 0 0 -32px; background: rgba(var(--accent-rgb), .12); border-color: var(--accent); }
@media (hover: none), (pointer: coarse) { .cursor { display: none; } }

/* ==========================================================
   CONTACTO
   ========================================================== */
.contact {
  position: relative; overflow: hidden; text-align: center; padding: clamp(40px, 8vw, 96px) clamp(20px, 5vw, 64px); border-radius: 32px;
  border: 1px solid var(--ink); background: var(--ink); color: var(--paper);
  --line: rgba(255, 255, 255, .12); --line-strong: rgba(255, 255, 255, .28); --muted: #b3ada1; --text: var(--paper);
}
.contact > * { position: relative; z-index: 1; }
.contact .btn--ghost:hover { border-color: var(--paper); background: rgba(255, 255, 255, .1); }
.contact__title { margin: 1rem 0; font-family: var(--font-head); font-weight: 700; letter-spacing: -.045em; line-height: 1; font-size: clamp(3rem, 10vw, 7rem); }
.contact__sub { max-width: 46ch; margin: 0 auto; color: var(--muted); }
.contact__mail { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: .8rem; margin: 2.4rem 0 1.6rem; }
.contact__email { font-family: var(--font-mono); font-size: clamp(.95rem, 2.4vw, 1.3rem); padding-bottom: 2px; word-break: break-all; background: linear-gradient(var(--accent), var(--accent)) 0 100% / 0 1px no-repeat; transition: background-size .5s var(--ease), color .3s; }
.contact__email:hover { color: var(--accent); background-size: 100% 1px; }
.copy { position: relative; display: inline-flex; align-items: center; gap: .5rem; padding: .5rem .9rem; border-radius: 999px; font-size: .82rem; color: var(--muted); border: 1px solid var(--line-strong); transition: color .3s, border-color .3s, background .3s; }
.copy:hover { color: var(--text); background: rgba(255, 255, 255, .08); }
.copy__b { display: none; }
.copy.is-done { color: #7fd6a3; border-color: rgba(127, 214, 163, .5); }
.copy.is-done .copy__a { display: none; }
.copy.is-done .copy__b { display: inline-block; }
.contact__links { display: flex; flex-wrap: wrap; justify-content: center; gap: .8rem; }

/* ==========================================================
   FOOTER
   ========================================================== */
.footer { border-top: 1px solid var(--line); padding: 32px 0; color: var(--dim); font-size: .88rem; }
.footer__inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem 2rem; }
.footer__links { display: flex; gap: 1.4rem; }
.footer a { transition: color .3s; }
.footer a:hover { color: var(--text); }
.footer__top { display: inline-flex; align-items: center; gap: .4rem; }
.footer__top .lucide { transition: transform .4s var(--ease); }
.footer__top:hover .lucide { transform: translateY(-3px); }

/* ==========================================================
   RESPONSIVE
   ========================================================== */
@media (max-width: 980px) {
  .hero { padding-top: 120px; }
  .hero__inner { grid-template-columns: 1fr; }
  .hero__card { max-width: 520px; }
  .about { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
  .nav__links, .nav__cta { display: none; }
  .burger { display: block; }
  .nav { width: calc(100% - 24px); }
}

@media (max-width: 640px) {
  .projects { grid-template-columns: 1fr; }
  .tech { grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 10px; }
  .tile { gap: .6rem; border-radius: 16px; }
  .tile__icon, .tile__fallback { width: 36px; height: 36px; }
  .tile__name { font-size: .8rem; }
  .timeline { padding-left: 30px; }
  .edu__node { left: -30px; }
  .edu { padding: 1.2rem; }
  .hero__actions .btn { flex: 1 1 100%; }
  .hero__card .chip--2 { left: -6px; }
  .scroll-hint { display: none; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
  .contact__links .btn { flex: 1 1 100%; }
  .section__title { font-size: clamp(2rem, 9vw, 2.6rem); }
}

/* Dispositivos táctiles: sin efectos que dependen del mouse */
@media (hover: none) {
  [data-spotlight]::before, [data-spotlight]::after { display: none; }
}

/* Respeta a quien prefiere menos movimiento */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}