:root {
  --bg: #060b12;
  --bg-soft: #0b1420;
  --surface: rgba(12, 23, 35, 0.78);
  --surface-strong: rgba(17, 31, 47, 0.92);
  --text: #eef7ff;
  --muted: #a9b8c7;
  --line: rgba(140, 190, 214, 0.18);
  --accent: #44e0c0;
  --accent-strong: #6aa8ff;
  --accent-soft: rgba(68, 224, 192, 0.12);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.22, 1, 0.36, 1);
  --intro-exit: 460ms;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 18% 12%, rgba(68, 224, 192, 0.18), transparent 28rem),
    radial-gradient(circle at 86% 18%, rgba(106, 168, 255, 0.16), transparent 30rem),
    linear-gradient(135deg, #050910 0%, var(--bg) 48%, #081622 100%);
  color: var(--text);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(140, 190, 214, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 190, 214, 0.06) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.65), transparent 76%);
}

body.intro-running {
  overflow: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

.intro-screen {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  overflow: hidden;
  isolation: isolate;
  contain: layout paint size;
  background:
    radial-gradient(circle at 50% 48%, rgba(68, 224, 192, 0.14), transparent 22rem),
    radial-gradient(circle at 58% 42%, rgba(106, 168, 255, 0.10), transparent 28rem),
    linear-gradient(135deg, #03070d, #081522 58%, #020407);
  backface-visibility: hidden;
  transform: translateZ(0);
  transition:
    opacity var(--intro-exit) ease,
    visibility var(--intro-exit) ease;
  will-change: opacity;
}

.intro-screen.is-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.intro-grid {
  position: absolute;
  inset: -18%;
  z-index: -1;
  opacity: 0.34;
  background-image:
    linear-gradient(rgba(68, 224, 192, 0.095) 1px, transparent 1px),
    linear-gradient(90deg, rgba(106, 168, 255, 0.08) 1px, transparent 1px);
  background-size: 56px 56px;
  transform: perspective(760px) rotateX(60deg) translate3d(0, 14%, 0);
  transform-origin: center;
  animation: gridDrift 3.6s var(--ease-soft) both;
  backface-visibility: hidden;
  will-change: transform, opacity;
}

.intro-title {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.28em;
  width: min(780px, calc(100% - 36px));
  color: var(--text);
  font-size: clamp(1.8rem, 6vw, 4.8rem);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 0.98;
  text-align: center;
  text-shadow: 0 0 22px rgba(68, 224, 192, 0.18);
  transform: translateZ(0);
  backface-visibility: hidden;
}

.intro-title > span {
  animation: titleRise 620ms var(--ease-out) both;
  will-change: transform, opacity;
}

.intro-title > span:nth-child(2) {
  animation-delay: 120ms;
}

.intro-title > span:nth-child(3) {
  animation-delay: 220ms;
}

.intro-word {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  isolation: isolate;
}

.intro-p-stage {
  position: relative;
  display: inline-block;
  width: 0.67em;
  text-align: left;
}

.intro-word > span,
.falling-letter {
  display: inline-block;
}

.impact-ring {
  content: "";
  position: absolute;
  left: 0.06em;
  top: 0.18em;
  z-index: 2;
  width: 0.64em;
  height: 0.42em;
  border-radius: 50%;
  border: 2px solid rgba(68, 224, 192, 0.76);
  box-shadow: 0 0 16px rgba(68, 224, 192, 0.42);
  opacity: 0;
  transform: translate3d(-8%, -18%, 0) scale(0.26);
  animation: impactPulse 760ms var(--ease-out) 2.46s both;
  pointer-events: none;
  will-change: transform, opacity;
}

.falling-letter {
  transform-origin: 50% 100%;
  animation: letterHit 1.18s var(--ease-soft) 2.3s both;
  backface-visibility: hidden;
  will-change: transform, opacity;
}

.intro-dot {
  position: absolute;
  display: block;
  z-index: 3;
  left: 0.21em;
  top: 0.26em;
  width: 0.16em;
  height: 0.16em;
  border-radius: 50%;
  opacity: 0;
  background:
    radial-gradient(circle, #ffffff 0 18%, #9fffee 19% 48%, rgba(68, 224, 192, 0.34) 49% 70%, transparent 71%);
  box-shadow:
    0 0 0.34em rgba(68, 224, 192, 0.9),
    0 0 0.8em rgba(106, 168, 255, 0.36);
  animation: dotStrike 2.72s linear 520ms both;
  transform: translateZ(0);
  backface-visibility: hidden;
  will-change: transform, opacity;
}

.intro-dot::before {
  content: "";
  position: absolute;
  right: 60%;
  top: 50%;
  width: 3.4em;
  height: 1px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, rgba(106, 168, 255, 0.18), rgba(68, 224, 192, 0.86));
  opacity: 0.82;
  transform: translate3d(0, -50%, 0);
}

.site-header,
main,
.site-footer {
  transition:
    opacity 520ms ease,
    transform 520ms ease,
    filter 520ms ease;
}

.intro-running .site-header,
.intro-running main,
.intro-running .site-footer {
  opacity: 0;
  transform: translateY(18px);
  filter: blur(12px);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
  margin: 0;
  padding: 18px max(20px, calc((100vw - 1120px) / 2));
  background: rgba(6, 11, 18, 0.72);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
}

.brand {
  font-weight: 800;
  line-height: 1.2;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 26px);
  color: var(--muted);
}

.hero,
.section,
.site-footer {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

main {
  min-height: calc(100vh - 82px);
}

.page-panel {
  opacity: 0;
  transform: translateY(22px) scale(0.985);
  filter: blur(14px);
  transition: opacity 360ms ease, transform 360ms ease, filter 360ms ease;
}

.page-panel.is-active {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

.page-panel.is-leaving {
  opacity: 0;
  transform: translateY(-18px) scale(0.985);
  filter: blur(12px);
}

.page-panel[hidden] {
  display: none !important;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  gap: 36px;
  min-height: calc(100vh - 73px);
  min-height: calc(100svh - 73px);
  padding: 72px 0;
}

.eyebrow,
.project-kicker {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
  overflow-wrap: break-word;
}

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(3.2rem, 8vw, 7.2rem);
  line-height: 0.92;
  letter-spacing: 0;
  text-shadow: 0 0 34px rgba(68, 224, 192, 0.18);
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(1.8rem, 3vw, 3rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.15rem;
  line-height: 1.25;
}

.hero-text {
  max-width: 620px;
  color: var(--muted);
  font-size: 1.16rem;
}

.hero-copy,
.section-heading,
.section-content,
.project-body {
  min-width: 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 12px;
  margin-top: 32px;
}

/* From Uiverse.io by satyamchaudharydev, ajustado a la paleta del sitio */
.button {
  --border-right: 6px;
  --text-stroke-color: rgba(255, 255, 255, 0.6);
  --animation-color: var(--accent);
  --fs-size: 2em;

  display: inline-block;
  position: relative;
  margin: 0;
  height: auto;
  padding: 0;
  border: none;
  background: transparent;
  color: transparent;
  cursor: pointer;
  font-family: Arial, sans-serif;
  font-size: var(--fs-size);
  letter-spacing: 3px;
  text-decoration: none;
  text-transform: uppercase;
  -webkit-text-stroke: 1px var(--text-stroke-color);
}

.actual-text {
  display: inline-block;
}

/* this is the text, when you hover on button */
.hover-text {
  position: absolute;
  box-sizing: border-box;
  content: attr(data-text);
  color: var(--animation-color);
  width: 0%;
  inset: 0;
  border-right: var(--border-right) solid var(--animation-color);
  overflow: hidden;
  white-space: nowrap;
  transition: width 1s cubic-bezier(0.19, 1, 0.22, 1), filter 1s ease;
  -webkit-text-stroke: 1px var(--animation-color);
  will-change: width, filter;
}
/* hover */
.button:hover .hover-text,
.button:focus-visible .hover-text {
  width: 100%;
  filter: drop-shadow(0 0 20px var(--animation-color));
}

.button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 6px;
}

.site-nav .button {
  --fs-size: 0.78rem;
}

.action-button {
  --fs-size: 1rem;
}


.section {
  display: grid;
  grid-template-columns: minmax(220px, 0.78fr) minmax(0, 1.22fr);
  gap: 56px;
  min-height: calc(100vh - 82px);
  padding: 86px 0;
  border-top: 1px solid var(--line);
}

.section-content {
  color: var(--muted);
  font-size: 1.02rem;
}

.section-content p:last-child,
.project-body p:last-child,
.project-note p:last-child {
  margin-bottom: 0;
}

.skills-content {
  display: grid;
  gap: 18px;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.tech-card {
  display: grid;
  justify-items: center;
  gap: 12px;
  min-height: 126px;
  padding: 22px 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.tech-card:hover,
.tech-card:focus-within {
  transform: translateY(-3px);
  border-color: rgba(68, 224, 192, 0.38);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.22);
}

.tech-card img {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.tech-card span {
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
}

.skill-panels {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.skill-panel,
.project-card,
.project-note {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.skill-panel {
  padding: 22px;
}

.skill-panel p,
.project-body p,
.project-note p,
.clean-list {
  color: var(--muted);
}

.tool-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.tool-list span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 10px;
  color: var(--accent);
  font-size: 0.86rem;
  font-weight: 800;
}

.highlight-panel {
  background: rgba(68, 224, 192, 0.09);
}

.projects {
  display: block;
  min-height: calc(100vh - 82px);
}

.projects .section-heading {
  max-width: 640px;
  margin-bottom: 34px;
}

.project-card {
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.secondary-project {
  margin-top: 18px;
  box-shadow: none;
}

.project-media {
  min-height: 100%;
  background: var(--accent-soft);
}

.project-media-text {
  display: flex;
  align-items: flex-end;
  min-height: 100%;
  padding: 28px;
  background:
    linear-gradient(150deg, rgba(68, 224, 192, 0.15), rgba(106, 168, 255, 0.08)),
    rgba(255, 255, 255, 0.03);
}

.project-media-text span {
  color: var(--accent);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
}

.project-body {
  padding: 32px;
}

.clean-list {
  display: grid;
  gap: 8px;
  margin: 22px 0 26px;
  padding-left: 20px;
}

.video-frame {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #101614;
}

.video-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.project-result {
  border-top: 1px solid var(--line);
  margin-top: 26px;
  padding-top: 20px;
}

.project-result span {
  display: block;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.project-result p {
  color: var(--muted);
}

.project-note {
  margin-top: 18px;
  padding: 24px;
}

.contact-section {
  align-items: start;
}

.contact-intro {
  max-width: 520px;
  color: var(--muted);
}

.contact-form {
  width: 100%;
  padding: 30px;
  background:
    linear-gradient(145deg, rgba(68, 224, 192, 0.08), rgba(106, 168, 255, 0.05)),
    var(--surface);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.form-group {
  display: grid;
  gap: 8px;
}

.form-group.full {
  grid-column: 1 / -1;
}

.form-group label {
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 13px 14px;
  background: rgba(6, 11, 18, 0.76);
  color: var(--text);
  font: inherit;
  outline: none;
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease,
    transform 180ms ease;
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(169, 184, 199, 0.68);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: rgba(68, 224, 192, 0.72);
  background: rgba(8, 18, 29, 0.96);
  box-shadow: 0 0 0 4px rgba(68, 224, 192, 0.1);
}

.form-group select {
  cursor: pointer;
}

.hidden-field {
  display: none;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 28px;
}

.contact-actions .button {
  text-align: left;
}

.form-status {
  min-height: 28px;
  margin: 20px 0 0;
  color: var(--muted);
  font-weight: 700;
}

.form-status.is-success {
  color: var(--accent);
}

.form-status.is-error {
  color: #ff8a8a;
}

.site-footer {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 24px 0 36px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0;
}

@keyframes titleRise {
  from {
    opacity: 0;
    transform: translate3d(0, 18px, 0) scale(0.985);
  }

  to {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
  }
}

@keyframes dotStrike {
  0% {
    opacity: 0;
    transform: translate3d(-8.8em, 0, 0) scale(0.74);
  }

  8% {
    opacity: 1;
    transform: translate3d(-7.85em, 0, 0) scale(0.86);
  }

  72% {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1.08);
  }

  80% {
    opacity: 1;
    transform: translate3d(0.16em, -0.68em, 0) scale(0.92);
  }

  100% {
    opacity: 0;
    transform: translate3d(0.48em, -1.48em, 0) scale(0.58);
  }
}

@keyframes letterHit {
  0%,
  18% {
    opacity: 1;
    transform: translate3d(0, 0, 0) rotate(0deg);
  }

  34% {
    transform: translate3d(0.04em, 00.05em, 0) rotate(14deg);
  }

  52% {
    transform: translate3d(-0.035em, 0, 0) rotate(-7deg);
  }

  70% {
    opacity: 1;
    transform: translate3d(0.12em, 0.18em, 0) rotate(36deg);
  }

  100% {
    opacity: 0;
    transform: translate3d(0.5em, 2.28em, 0) rotate(104deg);
  }
}

@keyframes impactPulse {
  0% {
    opacity: 0;
    transform: translate3d(-8%, -18%, 0) scale(0.28);
  }

  20% {
    opacity: 1;
    transform: translate3d(-8%, -18%, 0) scale(1);
  }

  100% {
    opacity: 0;
    transform: translate3d(-8%, -18%, 0) scale(1.65);
  }
}

@keyframes gridDrift {
  from {
    opacity: 0.22;
    transform: perspective(760px) rotateX(60deg) translate3d(0, 16%, 0);
  }

  to {
    opacity: 0.34;
    transform: perspective(760px) rotateX(60deg) translate3d(0, 5%, 0);
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }

  /*
    Importante:
    No tocamos la animación de .intro-dot, .falling-letter ni .impact-ring.
    Antes se les ponía animation-duration: 1ms y como el elemento animado termina con opacity: 0,
    desaparecía inmediatamente.
  */

  .site-header,
  main,
  .site-footer,
  .page-panel,
  .hover-text,
  .tech-card {
    transition-duration: 120ms !important;
  }
}

@media (max-width: 820px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero,
  .section,
  .project-card {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 22px;
    min-height: calc(100vh - 132px);
    min-height: calc(100svh - 132px);
    padding: 42px 0 44px;
  }

  .section,
  .projects,
  .site-footer {
    min-height: auto;
  }

  .section {
    gap: 24px;
    padding: 54px 0;
  }

  .tech-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .skill-panels {
    grid-template-columns: 1fr;
  }

  .project-media-text {
    min-height: 170px;
  }

  .site-footer {
    align-items: flex-start;
    padding: 58px 0;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .contact-form {
    padding: 22px;
  }

  .contact-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-footer {
    width: min(100% - 40px, 1120px);
    padding: 22px 0 32px;
  }
}

@media (max-width: 520px) {
  .hero,
  .section,
  .site-footer {
    width: min(100% - 28px, 1120px);
  }

  .site-header {
    padding-inline: 14px;
  }

  .intro-title {
    gap: 0.22em;
    font-size: clamp(1.8rem, 11vw, 3.4rem);
  }

  .intro-grid {
    background-size: 44px 44px;
    opacity: 0.24;
  }

  .site-nav {
    gap: 14px;
  }

  .site-nav .button {
    --fs-size: 0.68rem;
    font-size: var(--fs-size);
    letter-spacing: 1px;
  }

  .intro-dot {
    width: 0.18em;
    height: 0.18em;
  }

  .hero-actions {
    flex-direction: column;
    margin-top: 24px;
  }

  .hero-copy {
    max-width: 34ch;
  }

  .section-content,
  .skills-content {
    width: 100%;
    max-width: 330px;
  }

  h1 {
    max-width: 11ch;
    margin-bottom: 18px;
    font-size: clamp(2.6rem, 14vw, 3.8rem);
    line-height: 0.96;
  }

  h2 {
    max-width: 18ch;
    font-size: 1.45rem;
    line-height: 1.15;
  }

  .hero-text {
    max-width: 33ch;
    font-size: 1rem;
    line-height: 1.55;
  }

  .button {
    letter-spacing: 1px;
  }

  .action-button {
    --fs-size: 0.98rem;
    font-size: var(--fs-size);
  }

  .project-body,
  .project-note,
  .skill-panel {
    padding: 20px;
  }

  .tech-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
  }

  .tech-card {
    min-height: 112px;
    padding: 18px 10px;
  }

  .contact-form {
    padding: 18px;
    border-radius: 18px;
  }

  .form-group input,
  .form-group select,
  .form-group textarea {
    border-radius: 12px;
    padding: 12px;
  }

  .contact-actions {
    gap: 14px;
  }
}