/* ==========================================================================
   Tokens
   Colores, radios y movimiento del portafolio. Los valores de color solo
   se declaran aqui; el resto del archivo (y Tailwind) consume variables.
   Escala de radios: sm = campos internos, md = filas, lg = tarjetas,
   pill = controles pequenos (links, chips, botones).
   ========================================================================== */
:root {
  color-scheme: dark;

  --color-bg: #020617;
  --color-bg-translucent: rgb(2 6 23 / 0.82);
  --color-surface: #0a1120;
  --color-surface-raised: #0f182b;
  --color-inset: #050b18;
  --color-border: #1c2638;
  --color-border-strong: #475569;
  --color-grid-line: rgb(148 163 184 / 0.07);

  --color-text: #f1f5f9;
  --color-text-soft: #cbd5e1;
  --color-text-muted: #94a3b8;
  --color-text-subtle: #7c8aa0;

  --color-accent: #f5b83d;
  --color-accent-soft: rgb(245 184 61 / 0.14);
  --color-on-accent: #1a1204;

  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-pill: 999px;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 180ms;
  --duration-base: 240ms;
  --duration-slow: 600ms;

  --font-body: "Geist", system-ui, sans-serif;
  --font-display: "Hanken Grotesk", "Geist", system-ui, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  font-family: var(--font-body);
  background-color: var(--color-bg);
}

/* ==========================================================================
   Base
   ========================================================================== */
html {
  scroll-behavior: smooth;
  scrollbar-color: var(--color-border-strong) var(--color-bg);
}

body {
  margin: 0;
  background-color: var(--color-bg);
}

/* Reticula tecnica: se desvanece hacia los bordes para no competir con el contenido. */
body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  pointer-events: none;
  background-image: linear-gradient(var(--color-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 20%, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 20%, #000 30%, transparent 100%);
}

::selection {
  background-color: var(--color-accent);
  color: var(--color-on-accent);
}

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

section[id],
footer[id] {
  scroll-margin-top: 8rem;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  text-wrap: balance;
}

.section-label {
  margin-bottom: 0.75rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  font-weight: 500;
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-translucent) 60%, transparent);
}

.header-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg-translucent);
  padding: 0.625rem 0.75rem 0.5rem 1rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.header-brand {
  display: inline-flex;
  min-width: max-content;
  align-items: baseline;
  gap: 0.75rem;
  transition: transform var(--duration-fast) var(--ease-out);
}

.header-brand:active {
  transform: scale(0.97);
}

.header-brand-name {
  color: var(--color-text);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.header-brand-role {
  display: none;
  color: var(--color-text-subtle);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.header-nav {
  order: 3;
  display: flex;
  width: 100%;
  gap: 0.25rem;
  overflow-x: auto;
  margin-inline: -0.5rem;
  scrollbar-width: none;
}

.header-nav::-webkit-scrollbar {
  display: none;
}

.header-link {
  position: relative;
  min-width: max-content;
  border-radius: var(--radius-pill);
  padding: 0.5rem 0.625rem;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .header-link:hover {
    color: var(--color-text);
  }
}

.header-link:active {
  transform: scale(0.96);
}

.header-link.is-active {
  background-color: var(--color-surface-raised);
  color: var(--color-text);
}

.header-link::after {
  position: absolute;
  right: 0.75rem;
  bottom: 0.3rem;
  left: 0.75rem;
  height: 1px;
  content: "";
  background-color: var(--color-accent);
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-out);
}

.header-link.is-active::after {
  opacity: 1;
}

.header-status {
  display: inline-flex;
  width: max-content;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 0.375rem 0.75rem;
  color: var(--color-text-soft);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.header-status-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: var(--radius-pill);
  background-color: var(--color-accent);
}

/* ==========================================================================
   Informacion personal
   ========================================================================== */
.hero-role {
  margin-bottom: 1rem;
  color: var(--color-text-soft);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-pill {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background-color: var(--color-surface);
  padding: 0.5rem 1rem;
  color: var(--color-text-soft);
}

.profile-card {
  position: relative;
}

/* La mascara difumina la foto hacia el fondo; el color aparece al pasar el cursor. */
.profile-image {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: 50% 30%;
  filter: grayscale(1) contrast(1.08) brightness(0.82);
  mask-image: radial-gradient(closest-side at 50% 52%, #000 58%, transparent 100%);
  -webkit-mask-image: radial-gradient(closest-side at 50% 52%, #000 58%, transparent 100%);
  transition: filter var(--duration-slow) var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .profile-card:hover .profile-image {
    filter: grayscale(0) contrast(1) brightness(1);
  }
}

/* Entrada unica al cargar la pagina: cada elemento del hero llega con un
   pequeno desfase. Una animation de keyframes (no una transition) porque
   ocurre una sola vez y no necesita ser interrumpible. */
@keyframes hero-enter {
  from {
    opacity: 0;
    transform: translateY(14px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-enter-role {
  animation: hero-enter 560ms var(--ease-out) both;
}

.hero-enter-title {
  animation: hero-enter 620ms var(--ease-out) both 70ms;
}

.hero-enter-copy {
  animation: hero-enter 620ms var(--ease-out) both 140ms;
}

.hero-enter-stack {
  animation: hero-enter 560ms var(--ease-out) both 210ms;
}

.hero-enter-portrait {
  animation: hero-enter 700ms var(--ease-out) both 120ms;
}

/* ==========================================================================
   Arsenal tecnologico
   ========================================================================== */
.technology-grid {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-border);
}

.technology-group {
  --reveal-delay: 0ms;
  background-color: var(--color-surface);
  padding: 1.25rem 1.5rem 1.5rem;
  opacity: 0;
  transform: translateY(10px);
  transition: background-color var(--duration-fast) var(--ease-out),
    opacity 320ms var(--ease-out), transform 320ms var(--ease-out);
  transition-delay: 0ms, var(--reveal-delay), var(--reveal-delay);
}

.technology-group.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Pequeno desfase por grupo para que el stack entre en cascada, no de golpe.
   Se guarda en una variable para no retrasar tambien la transicion de hover. */
.technology-group:nth-child(1) { --reveal-delay: 0ms; }
.technology-group:nth-child(2) { --reveal-delay: 25ms; }
.technology-group:nth-child(3) { --reveal-delay: 50ms; }
.technology-group:nth-child(4) { --reveal-delay: 75ms; }
.technology-group:nth-child(5) { --reveal-delay: 100ms; }
.technology-group:nth-child(6) { --reveal-delay: 125ms; }
.technology-group:nth-child(7) { --reveal-delay: 150ms; }
.technology-group:nth-child(8) { --reveal-delay: 175ms; }

@media (hover: hover) and (pointer: fine) {
  .technology-group:hover {
    background-color: var(--color-surface-raised);
  }

  .technology-group:hover .technology-group-title {
    color: var(--color-accent);
  }
}

.technology-group-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.technology-group-title {
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color var(--duration-fast) var(--ease-out);
}

.technology-group-count {
  color: var(--color-text-subtle);
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
}

.technology-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.technology-chip {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background-color: var(--color-inset);
  padding: 0.4375rem 0.875rem;
  color: var(--color-text);
  font-size: 0.9375rem;
  font-weight: 500;
}

/* ==========================================================================
   Trayectoria
   ========================================================================== */
.timeline-list {
  position: relative;
}

.timeline-list::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 10px;
  width: 1px;
  content: "";
  background: linear-gradient(180deg, transparent, var(--color-border-strong) 12%, var(--color-border-strong) 88%, transparent);
}

.timeline-item {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

.timeline-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.timeline-card {
  position: relative;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  padding: 1.5rem;
  transition: border-color var(--duration-fast) var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .timeline-card:hover {
    border-color: var(--color-border-strong);
  }
}

.timeline-year {
  color: var(--color-text-subtle);
  font-size: 0.8125rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.12em;
}

.project-link {
  display: inline-flex;
  color: var(--color-text);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-transform: uppercase;
  text-underline-offset: 0.5rem;
  transition: color var(--duration-fast) var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .project-link:hover {
    color: var(--color-accent);
  }
}

.timeline-node {
  width: 13px;
  height: 13px;
  border-radius: var(--radius-pill);
  background-color: var(--color-accent);
  box-shadow: 0 0 0 5px var(--color-bg), 0 0 0 6px var(--color-border-strong);
}

/* Pulso breve cuando el proyecto entra en el viewport: refuerza que el
   timeline "reacciona" al scroll, en sincronia con la tarjeta. */
@keyframes timeline-node-pulse {
  from {
    transform: scale(0.4);
  }

  to {
    transform: scale(1);
  }
}

.timeline-item.is-visible .timeline-node {
  animation: timeline-node-pulse 480ms var(--ease-out);
}

.timeline-image-link {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  transition: transform var(--duration-fast) var(--ease-out);
}

.timeline-image-link:active {
  transform: scale(0.98);
}

.timeline-image {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: grayscale(1) contrast(1.06);
  transition: filter var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

.timeline-image-link:focus-visible .timeline-image {
  filter: grayscale(0) contrast(1);
  transform: scale(1.03);
}

@media (hover: hover) and (pointer: fine) {
  .timeline-image-link:hover .timeline-image {
    filter: grayscale(0) contrast(1);
    transform: scale(1.03);
  }
}

/* ==========================================================================
   Carrusel de imagenes (proyectos con dos o mas capturas)
   ========================================================================== */
.project-carousel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
}

.project-carousel:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.project-carousel-track {
  display: flex;
  transition: transform var(--duration-slow) var(--ease-out);
}

.project-carousel-slide {
  position: relative;
  flex: 0 0 100%;
}

.project-carousel-image {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: grayscale(1) contrast(1.06);
  transition: filter var(--duration-slow) var(--ease-out);
}

.project-carousel-slide:focus-visible .project-carousel-image {
  filter: grayscale(0) contrast(1);
}

@media (hover: hover) and (pointer: fine) {
  .project-carousel:hover .project-carousel-image {
    filter: grayscale(0) contrast(1);
  }
}

.project-carousel-control {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-pill);
  background-color: var(--color-surface-raised);
  color: var(--color-text);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out);
}

.project-carousel-prev {
  left: 0.75rem;
}

.project-carousel-next {
  right: 0.75rem;
}

.project-carousel-control:hover,
.project-carousel-control:focus-visible {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.project-carousel-footer {
  position: absolute;
  inset-inline: 0.75rem;
  bottom: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.project-carousel-dots {
  display: flex;
  gap: 0.4rem;
}

.project-carousel-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: var(--radius-pill);
  border: none;
  background-color: var(--color-border-strong);
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

.project-carousel-dot.is-active {
  background-color: var(--color-accent);
  transform: scale(1.2);
}

.project-carousel-counter {
  border-radius: var(--radius-pill);
  background-color: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  padding: 0.15rem 0.6rem;
  font-size: 0.75rem;
  color: var(--color-text-subtle);
}

/* ==========================================================================
   Credenciales demo
   ========================================================================== */
.credentials-panel {
  margin-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  padding-top: 1.25rem;
}

.credentials-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.credentials-kicker,
.credential-role,
.credential-values dt {
  color: var(--color-text-subtle);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.credentials-heading h4 {
  margin-top: 0.25rem;
  color: var(--color-text);
  font-size: 1.0625rem;
  font-weight: 600;
}

.credentials-badge {
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-pill);
  padding: 0.25rem 0.625rem;
  color: var(--color-text-soft);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.credentials-note {
  margin-top: 0.75rem;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  line-height: 1.55;
}

.credentials-list {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}

.credential-row {
  display: grid;
  gap: 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-inset);
  padding: 0.875rem 1rem;
}

.credential-values {
  display: grid;
  gap: 0.375rem;
  margin-top: 0.625rem;
}

.credential-values div {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
}

.credential-values dd {
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  overflow-wrap: anywhere;
}

.credential-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.copy-credential-button {
  min-height: 2.25rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-pill);
  padding: 0.375rem 0.875rem;
  color: var(--color-text-soft);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: border-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    background-color var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .copy-credential-button:hover {
    border-color: var(--color-text-soft);
    color: var(--color-text);
  }
}

.copy-credential-button:active {
  transform: scale(0.97);
}

.copy-credential-button.is-copied {
  border-color: var(--color-accent);
  background-color: var(--color-accent-soft);
  color: var(--color-accent);
}

.copy-feedback {
  min-height: 1.25rem;
  margin-top: 0.625rem;
  color: var(--color-text-soft);
  font-size: 0.75rem;
  opacity: 0;
  transform: translateY(-2px);
  transition: opacity var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

.copy-feedback.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.clipboard-fallback {
  position: fixed;
  top: -1000px;
  left: -1000px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer-signature {
  background: linear-gradient(180deg, transparent, var(--color-bg-translucent));
}

.footer-panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
}

.footer-link {
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-pill);
  padding: 0.625rem 1rem;
  color: var(--color-text-soft);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: border-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .footer-link:hover {
    border-color: var(--color-text-soft);
    color: var(--color-text);
    transform: translateY(-2px);
  }
}

.footer-link:active {
  transform: scale(0.96);
}

.footer-command {
  color: var(--color-text-subtle);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

/* ==========================================================================
   Media queries
   ========================================================================== */
@media (min-width: 640px) {
  .header-brand-role {
    display: inline;
  }

  .technology-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  /* Si el numero de categorias es impar, la ultima ocupa toda la fila. */
  .technology-group:last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }
}

@media (min-width: 768px) {
  section[id],
  footer[id] {
    scroll-margin-top: 6rem;
  }

  .header-bar {
    flex-wrap: nowrap;
    border-radius: var(--radius-pill);
    padding: 0.5rem 0.5rem 0.5rem 1.25rem;
  }

  .header-nav {
    order: 0;
    width: auto;
    margin-inline: 0;
  }

  .header-link {
    padding-inline: 0.75rem;
    letter-spacing: 0.12em;
  }

  .hero-role {
    letter-spacing: 0.16em;
  }

  .timeline-list::before {
    left: 50%;
    transform: translateX(-50%);
  }

  .timeline-card {
    padding: 2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
    animation-delay: 0ms !important;
  }

  .timeline-item,
  .technology-group {
    opacity: 1;
    transform: none;
  }
}