/*
  Kail Studio
  Idea central: la página es un descenso. Arriba entra la luz celeste de la superficie
  y cada sección queda un poco más profunda hasta el contacto, en el azul más oscuro.
  Una sola familia (Archivo): los títulos usan el ancho expandido, el texto el ancho normal.
*/
:root {
  color-scheme: dark;
  --luz: #a6e9ff;
  --agua: #0e3f73;
  --profundo: #0a2c52;
  --hondo: #071f3d;
  --abismo: #04152b;
  --espuma: #eaf7ff;
  --niebla: #a9c6de;
  --linea: #a6e9ff26;
  --campo: #a6e9ff80;
  --sans: "Archivo", "Segoe UI", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body { margin: 0; background: var(--abismo); color: var(--espuma); font: 400 1.0625rem/1.65 var(--sans); font-stretch: 100%; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
button, input, textarea { font: inherit; }
h1, h2, h3, p, ol { margin: 0; }
img, svg { display: block; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--luz); outline-offset: 3px; border-radius: 2px; }
.frame { width: min(100% - 2 * clamp(1rem, 5vw, 4.5rem), 72rem); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip-link { position: fixed; z-index: 20; top: .5rem; left: .5rem; padding: .6rem 1rem; background: var(--luz); color: var(--abismo); font-weight: 700; transform: translateY(-200%); }
.skip-link:focus { transform: none; }

/* Títulos: el ancho expandido es la voz de la marca */
h1, h2, .wordmark { font-stretch: 125%; }
h1, h2, h3 { text-wrap: balance; }
h2 { font-size: clamp(2rem, 4.2vw, 3.25rem); font-weight: 780; line-height: 1.04; letter-spacing: -.025em; }
h3 { font-size: clamp(1.15rem, 1.7vw, 1.4rem); font-weight: 650; font-stretch: 110%; line-height: 1.2; letter-spacing: -.01em; }

/* Encabezado */
.site-header { position: sticky; top: 0; z-index: 10; background: #0b3462e0; backdrop-filter: blur(12px); border-bottom: 1px solid var(--linea); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; min-height: 4.25rem; }
.wordmark { display: inline-flex; align-items: center; gap: .55rem; text-decoration: none; font-size: 1.12rem; font-weight: 800; letter-spacing: -.01em; white-space: nowrap; color: var(--espuma); }
.mark { width: 1.75rem; height: 1.7rem; color: var(--espuma); }
.site-nav { display: flex; gap: clamp(1rem, 3vw, 2.25rem); margin-left: auto; }
.site-nav a { color: var(--niebla); text-decoration: none; font-size: .95rem; font-weight: 500; }
.site-nav a:hover { color: var(--espuma); }
.header-contact { display: inline-flex; align-items: center; min-height: 2.75rem; padding-inline: 1.05rem; border-radius: .5rem; background: var(--luz); color: var(--abismo); text-decoration: none; font-size: .95rem; font-weight: 700; }
.header-contact:hover { background: var(--espuma); }

/* Descenso: el fondo del main va de la superficie al abismo */
main {
  position: relative;
  isolation: isolate;
  background: linear-gradient(180deg, var(--agua) 0%, #0c3767 20%, var(--profundo) 45%, var(--hondo) 72%, var(--abismo) 100%);
}
/* Los haces de luz siguen bajando, cada vez más débiles */
main::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0 0 auto;
  height: min(260vh, 100%);
  pointer-events: none;
  background:
    linear-gradient(116deg, transparent 56%, #a6e9ff26 63%, transparent 70%),
    linear-gradient(110deg, transparent 69%, #a6e9ff1a 75%, transparent 81%),
    linear-gradient(122deg, transparent 80%, #a6e9ff12 85%, transparent 90%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #0006 35%, transparent 60%);
  mask-image: linear-gradient(180deg, #000 0%, #0006 35%, transparent 60%);
}

/* Portada: la superficie */
.hero { position: relative; isolation: isolate; overflow: hidden; background: linear-gradient(180deg, var(--agua) 45%, #0e3f7300 100%); display: grid; align-items: end; min-height: clamp(34rem, 46vw, 42rem); }
.hero-image, .hero::after { position: absolute; inset: 0; width: 100%; height: 100%; }
/* La imagen se desvanece hacia abajo para que la portada continúe en el fondo del main, sin corte */
.hero-image { z-index: -2; object-fit: cover; object-position: 70% 30%; mix-blend-mode: screen; -webkit-mask-image: linear-gradient(180deg, #000 55%, transparent 100%); mask-image: linear-gradient(180deg, #000 55%, transparent 100%); }
.hero::after {
  content: "";
  z-index: -1;
  background: linear-gradient(90deg, #0a2c5299 0%, #0a2c5240 42%, #0a2c5200 70%);
  -webkit-mask-image: linear-gradient(180deg, #000 55%, transparent 100%);
  mask-image: linear-gradient(180deg, #000 55%, transparent 100%);
}
.hero-content { padding-block: clamp(4rem, 9vw, 7rem) clamp(3rem, 6vw, 5rem); }
.hero h1 { max-width: 17ch; font-size: clamp(2.4rem, 5vw, 4.5rem); font-weight: 820; line-height: .98; letter-spacing: -.03em; }
.hero-description { max-width: 34rem; margin-top: 1.5rem; color: #d4e8f6; font-size: clamp(1.05rem, 1.5vw, 1.2rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }

.button { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; min-height: 3.1rem; padding: .7rem 1.35rem; border: 1px solid transparent; border-radius: .5rem; font-size: 1rem; font-weight: 700; text-decoration: none; cursor: pointer; }
.button-primary { background: var(--luz); color: var(--abismo); }
.button-primary:hover { background: var(--espuma); }
.button-secondary { border-color: #a6e9ff80; color: var(--espuma); }
.button-secondary:hover { border-color: var(--luz); background: #a6e9ff14; }
.ext { font-weight: 400; }

/* Secciones */
.section { padding-block: clamp(3.5rem, 7vw, 5.5rem); }
.section > h2, .section .frame > h2 { max-width: 18ch; }
/* El espacio crece a medida que se baja: poco bajo la portada, mucho antes del contacto */
.hero + .section { padding-top: clamp(2rem, 4vw, 3.5rem); }

/* Lo que hago: tres frentes en una fila, separados por la línea de luz */
.tracks h2 { margin-bottom: clamp(1.75rem, 3.5vw, 2.5rem); }
.track-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1.5rem, 3vw, 3rem); }
.track { padding-top: 1.25rem; border-top: 2px solid var(--luz); }
.track:nth-child(2) { border-top-color: #a6e9ffa6; }
.track:nth-child(3) { border-top-color: #a6e9ff59; }
.track h3 { font-size: clamp(1.35rem, 2.2vw, 1.75rem); font-stretch: 125%; font-weight: 760; }
.track p { margin-top: .6rem; color: var(--niebla); }

/* Trabajo con empresas: casos como filas, título a la izquierda */
.work-intro { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 1rem clamp(2rem, 5vw, 5rem); align-items: end; margin-bottom: clamp(2rem, 4vw, 3rem); }
.work-intro p { max-width: 38rem; color: var(--niebla); }
.case-list { border-top: 1px solid var(--linea); }
.case { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: .75rem clamp(2rem, 5vw, 5rem); padding-block: clamp(1.5rem, 3vw, 2.25rem); border-bottom: 1px solid var(--linea); }
.case h3 { font-size: clamp(1.25rem, 2vw, 1.6rem); font-weight: 720; }
.case-body p:first-child { max-width: 38rem; color: #cfe3f2; }
.stack { margin-top: .75rem; color: var(--luz); font-size: .9rem; font-weight: 500; }

/* También trabajé en: lista compacta en dos columnas */
.also { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: .75rem clamp(2rem, 5vw, 5rem); padding-top: clamp(1.5rem, 3vw, 2.25rem); }
.also h3 { font-size: 1.1rem; color: var(--niebla); }
.also ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem 2rem; margin: 0; padding: 0; list-style: none; }
.also li { padding-left: 1rem; border-left: 2px solid #a6e9ff4d; color: #cfe3f2; font-size: .95rem; line-height: 1.5; }

/* Proyectos */
.projects h2 { margin-bottom: clamp(2rem, 4vw, 3rem); }
.projects-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(1.5rem, 3vw, 2.5rem); }
.project h3 { margin-top: 1.25rem; font-size: clamp(1.4rem, 2.4vw, 1.9rem); font-weight: 760; }
.project p { max-width: 36rem; margin-top: .4rem; color: var(--niebla); }
.project p.stack, .mini p.stack { margin-top: .6rem; color: var(--luz); }
.status { color: var(--niebla); font-weight: 500; }
.project-visual { display: grid; place-items: center; height: clamp(13rem, 24vw, 19rem); overflow: hidden; border-radius: .75rem; border: 1px solid var(--linea); }
.logistics-visual { background: radial-gradient(ellipse 80% 90% at 85% 0%, #2f7fb5, transparent 70%), #0d3a68; }
.fitness-visual { background: radial-gradient(ellipse 80% 90% at 15% 0%, #3c8fbf, transparent 70%), #0c3462; }
.project-window { width: 84%; margin-top: 1.5rem; overflow: hidden; border-radius: .5rem; background: #f2f9ff; color: #12304d; box-shadow: 0 1.25rem 2.5rem #021022a6; font-stretch: 100%; }
.window-bar { display: flex; align-items: center; gap: .3rem; min-height: 1.7rem; padding-inline: .65rem; background: #0e3f73; color: var(--espuma); font-size: .68rem; }
.window-bar i { width: .4rem; height: .4rem; border-radius: 50%; background: #a6e9ff80; }
.window-bar span { margin-left: .4rem; }
.logistics-ui { display: grid; grid-template-columns: minmax(3.8rem, 27%) 1fr; min-height: 8.5rem; font-size: clamp(.58rem, 1.15vw, .76rem); }
.mock-sidebar, .mock-stock { padding: .7rem; }
.mock-sidebar { display: grid; align-content: start; gap: .3rem; background: #dfeefa; }
.mock-stock strong { display: block; margin-bottom: .5rem; font-size: 1.2em; }
.stock-row { display: grid; grid-template-columns: 1fr auto; gap: .35rem; padding-block: .24rem; border-top: 1px solid #c9dfed; }
.stock-row b { color: #0e5a86; }
.stock-row b.low { color: #9a4a00; }
.mock-phone { align-self: start; width: min(62%, 12rem); min-height: 15rem; margin-top: clamp(1.25rem, 3vw, 2rem); padding: .55rem .75rem; border: .3rem solid #061d38; border-radius: 1.4rem; background: #eef8ff; color: #12304d; box-shadow: 0 1.25rem 2.5rem #021022b3; transform: rotate(-5deg); font-stretch: 100%; }
.phone-camera { width: 2rem; height: .28rem; margin: 0 auto .6rem; border-radius: 1rem; background: #254760; }
.phone-brand { display: block; color: #0e5a86; font-size: .68rem; font-weight: 700; }
.mock-phone strong { font-size: 1.25rem; font-stretch: 125%; line-height: 1.4; }
.phone-row { display: flex; justify-content: space-between; gap: .3rem; margin-top: .45rem; padding: .45rem; border: 1px solid #c5e1ef; border-radius: .45rem; background: #fff; font-size: .7rem; }
.rank { display: flex; justify-content: space-between; margin-top: .2rem; font-size: .66rem; font-weight: 700; color: #0e5a86; }
.xp-bar { height: .4rem; margin: .3rem 0 .5rem; border-radius: 1rem; background: #cfe3f0; overflow: hidden; }
.xp-bar i { display: block; width: 68%; height: 100%; background: #1d7fc0; }

/* Proyectos más pequeños: tres columnas con una maqueta mínima cada uno */
.mini-projects { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1.5rem, 3vw, 2.5rem); margin-top: clamp(2.5rem, 5vw, 3.5rem); }
.mini h3 { margin-top: 1rem; font-size: clamp(1.2rem, 1.8vw, 1.4rem); font-weight: 720; }
.mini p { margin-top: .4rem; color: var(--niebla); font-size: .97rem; }
.mini-visual { display: grid; align-items: center; height: 9.5rem; padding: 1rem; border: 1px solid var(--linea); border-radius: .75rem; background: radial-gradient(ellipse 90% 90% at 50% 0%, #1f5f93, transparent 75%), #0b3360; font-stretch: 100%; }
.chat { display: grid; gap: .45rem; }
.msg { max-width: 85%; margin: 0; padding: .45rem .65rem; border-radius: .75rem; font-size: .78rem; line-height: 1.35; }
.msg.me { justify-self: end; background: #a6e9ff; color: #04152b; border-bottom-right-radius: .2rem; }
.msg.bot { justify-self: start; background: #eaf7ff; color: #12304d; border-bottom-left-radius: .2rem; }
.schedule { display: grid; gap: .3rem; padding: .6rem .7rem; border-radius: .5rem; background: #f2f9ff; color: #12304d; font-size: .74rem; }
.schedule div { display: flex; justify-content: space-between; padding-block: .15rem; border-bottom: 1px solid #d5e7f3; }
.schedule div:last-child { border-bottom: 0; }
.schedule b { color: #0e5a86; }
.schedule .due b { color: #9a4a00; }

/* En el taller: lo que viene, en voz baja */
.workshop { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: .5rem clamp(2rem, 5vw, 5rem); margin-top: clamp(2.5rem, 5vw, 3.5rem); padding-top: 1.5rem; border-top: 1px dashed #a6e9ff4d; }
.workshop h3 { font-size: 1.1rem; color: var(--niebla); }
.workshop ul { margin: 0; padding: 0; list-style: none; }
.workshop li { color: var(--niebla); }
.workshop li + li { margin-top: .4rem; }

/* Cómo trabajo: cuatro principios numerados */
.principles h2 { margin-bottom: clamp(2rem, 4vw, 3rem); }
.principle-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(2rem, 4vw, 3.5rem) clamp(2rem, 5vw, 5rem); margin: 0; padding: 0; list-style: none; counter-reset: principio; }
.principle { counter-increment: principio; padding-top: 1.1rem; border-top: 1px solid var(--linea); }
.principle::before { content: counter(principio, decimal-leading-zero); display: block; margin-bottom: .75rem; color: var(--luz); font-size: 2.6rem; font-weight: 300; font-stretch: 125%; line-height: 1; }
.principle h3 { font-size: clamp(1.3rem, 2.2vw, 1.75rem); font-weight: 720; }
.principle p { max-width: 32rem; margin-top: .6rem; color: var(--niebla); }

/* Línea de tiempo: el año a la izquierda en el ancho de la marca */
.timeline { display: grid; gap: .65rem; margin: 1.75rem 0 0; padding: 1.25rem 0 0; list-style: none; border-top: 1px solid var(--linea); }
.timeline li { display: grid; grid-template-columns: 7.5rem 1fr; gap: 1rem; color: #cfe3f2; }
.timeline span { color: var(--luz); font-weight: 600; font-stretch: 112%; }

.facts { display: grid; gap: 1.5rem; margin: 1.75rem 0 0; padding-top: 1.25rem; border-top: 1px solid var(--linea); }
.facts > div > dt { margin-bottom: .5rem; color: var(--niebla); font-size: .85rem; }
.facts dd { margin: 0; }
.certs { display: grid; gap: .35rem; margin: 0; padding: 0; list-style: none; }
.certs b { font-weight: 650; }
.certs small { margin-left: .4rem; color: var(--niebla); }
.about-copy .more-certs { margin-top: .6rem; font-size: .95rem; }
.stack-groups { display: grid; gap: .6rem; margin: 0; }
.stack-groups div { display: grid; grid-template-columns: 7.5rem 1fr; gap: 1rem; }
.stack-groups dt { color: var(--luz); font-size: .92rem; font-weight: 600; }
.stack-groups dd { color: #cfe3f2; font-size: .95rem; }

/* Sobre mí */
.about { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 1.5rem clamp(2rem, 5vw, 5rem); }
.about h2 { position: sticky; top: 7rem; align-self: start; font-size: clamp(2.4rem, 5vw, 4rem); }
.about-copy p { max-width: 36rem; color: var(--niebla); font-size: 1.1rem; }
.about-copy p + p { margin-top: .9rem; }
.text-link { display: inline-flex; align-items: center; gap: .4rem; min-height: 2.75rem; margin-top: .75rem; color: var(--luz); font-weight: 600; text-underline-offset: .25em; }
.text-link:hover { color: var(--espuma); }

/* Contacto: lo más profundo */
.contact { padding-top: clamp(6rem, 11vw, 10rem); padding-bottom: clamp(5rem, 9vw, 8rem); }
.contact-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 2.5rem clamp(2rem, 5vw, 5rem); align-items: start; }
.contact-lead { margin-top: 1rem; color: var(--niebla); }
.contact-methods { margin-top: 2rem; border-top: 1px solid var(--linea); }
.contact-method { display: block; padding-block: 1rem; border-bottom: 1px solid var(--linea); text-decoration: none; overflow-wrap: anywhere; }
.contact-method small { display: block; color: var(--niebla); font-size: .85rem; }
.contact-method strong { font-weight: 600; }
.contact-method:hover strong { color: var(--luz); }
.contact-form { display: grid; gap: .5rem; padding: clamp(1.25rem, 3vw, 2rem); border: 1px solid var(--linea); border-radius: .75rem; background: #0a2c5299; }
.contact-form label { font-weight: 600; font-size: .95rem; }
.contact-form label:not(:first-child) { margin-top: .75rem; }
.contact-form input, .contact-form textarea { width: 100%; padding: .75rem .85rem; border: 1px solid var(--campo); border-radius: .5rem; background: #04152b; color: var(--espuma); }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--luz); }
.contact-form textarea { min-height: 8rem; resize: vertical; }
.contact-form ::placeholder { color: #8eabc4; }
.contact-form .button { justify-self: start; margin-top: 1rem; }
.form-note { color: var(--niebla); font-size: .88rem; }
.contact-form label small { color: var(--niebla); font-weight: 400; }
.form-error { color: #ffd2a6; font-size: .92rem; font-weight: 600; }
.contact-form textarea[aria-invalid="true"] { border-color: #ffd2a6; }
main:focus { outline: none; }

/* Pie */
.site-footer { background: var(--abismo); border-top: 1px solid var(--linea); }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; min-height: 5.5rem; }
.footer-inner p { color: var(--niebla); font-size: .9rem; }

@media (max-width: 900px) {
  .site-nav { display: none; }
}
@media (max-width: 800px) {
  .about, .contact-grid, .projects-grid, .track-list, .work-intro, .case, .workshop, .principle-list, .also, .also ul, .mini-projects { grid-template-columns: minmax(0, 1fr); }
  .timeline li, .stack-groups div { grid-template-columns: 1fr; gap: .1rem; }
  .mini-projects { gap: 2.5rem; }
  .about h2 { position: static; }
  .projects-grid { row-gap: 3rem; }
  .track-list { gap: 2rem; }
  .hero { min-height: 0; }
  .hero-image { object-position: 78% 20%; }
  .hero::after { background: linear-gradient(0deg, #0e3f73e6 0%, #0b3462c4 45%, #04152b80 100%); }
  .hero-content { padding-top: 9rem; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: clamp(2.1rem, 10vw, 2.6rem); }
  .hero-actions .button { width: 100%; }
  .contact-form .button { justify-self: stretch; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }