:root {
  color-scheme: light;
  --bg: #eef6ff;
  --surface: #ffffff;
  --ink: #101923;
  --muted: #536272;
  --line: #c9d9ea;
  --accent: #1176d4;
  --accent-dark: #084d99;
  --signal: #20d9ff;
  --violet: #5d5fef;
  --shadow: 0 22px 55px rgba(16, 25, 35, 0.14);
  --radius: 8px;
  --container: min(1120px, calc(100% - 40px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 8% 12%, rgba(32, 217, 255, 0.18), transparent 28%),
    radial-gradient(circle at 88% 18%, rgba(93, 95, 239, 0.16), transparent 26%),
    var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

body.motion-ready .reveal {
  opacity: 0;
  transform: translateY(22px);
}

body.motion-ready .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 640ms ease, transform 640ms ease;
  transition-delay: var(--reveal-delay, 0ms);
}

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

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

button {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 max(20px, calc((100vw - 1120px) / 2));
  border-bottom: 1px solid rgba(148, 197, 255, 0.24);
  background: rgba(8, 20, 35, 0.82);
  color: #f6fbff;
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(17, 118, 212, 0.45), rgba(32, 217, 255, 0.2));
  color: #fff;
  font-size: 0.85rem;
  letter-spacing: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.95rem;
  font-weight: 700;
}

.main-nav a {
  transition: color 160ms ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: #ffffff;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  background: transparent;
  color: #fff;
}

.menu-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: currentColor;
}

.hero {
  position: relative;
  display: grid;
  min-height: min(720px, calc(88vh - 72px));
  overflow: hidden;
  isolation: isolate;
}

.hero::after {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  background: linear-gradient(115deg, transparent 0%, rgba(32, 217, 255, 0.12) 45%, transparent 58%);
  mix-blend-mode: screen;
  transform: translateX(-100%);
  animation: scanSweep 8s ease-in-out infinite;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: -2;
  background-color: #081423;
  background-image:
    linear-gradient(90deg, rgba(8, 20, 35, 0.28), rgba(8, 20, 35, 0.04)),
    url("assets/ariel-alvarez-profile.jpeg");
  background-position: center center, right 18% center;
  background-repeat: no-repeat;
  background-size: cover, auto 116%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(8, 20, 35, 0.96) 0%, rgba(8, 20, 35, 0.72) 44%, rgba(8, 20, 35, 0.16) 100%),
    linear-gradient(0deg, rgba(8, 20, 35, 0.6), rgba(10, 74, 130, 0.18)),
    repeating-linear-gradient(90deg, rgba(32, 217, 255, 0.08) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(93, 95, 239, 0.05) 0 1px, transparent 1px 96px);
  background-position: 0 0, 0 0, 0 0, 0 0;
  animation: gridDrift 18s linear infinite;
}

.hero-content {
  align-self: center;
  width: var(--container);
  margin: 0 auto;
  padding: 56px 0;
  color: #f6fbff;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--signal);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(3rem, 8vw, 6.7rem);
  line-height: 0.94;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 690px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button,
.copy-button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 850;
  line-height: 1.1;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:hover,
.copy-button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  box-shadow: 0 14px 34px rgba(17, 118, 212, 0.32);
}

.button.primary:hover {
  background: linear-gradient(135deg, #2492f2, var(--accent-dark));
}

.button.secondary {
  border-color: rgba(255, 255, 255, 0.48);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.button.primary {
  position: relative;
  overflow: hidden;
}

.button.primary::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.28), transparent);
  transform: translateX(-120%);
  transition: transform 520ms ease;
}

.button.primary:hover::after {
  transform: translateX(120%);
}

.button.wide {
  width: 100%;
}

.section {
  padding: 94px 0;
}

.intro-band {
  background: #f8fbff;
  padding-top: 44px;
}

.muted {
  background:
    linear-gradient(180deg, rgba(228, 240, 255, 0.88), rgba(238, 246, 255, 0.95)),
    #e7f1fc;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 64px;
  align-items: start;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

h2,
h3,
p {
  overflow-wrap: anywhere;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 1.12rem;
  line-height: 1.25;
}

.prose p,
.skill-card p,
.timeline-content p,
.cert-card p,
.case-card p,
.contact-copy {
  color: var(--muted);
}

.prose p:first-child {
  margin-top: 0;
}

.skill-grid,
.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.skill-card,
.cert-card,
.case-card,
.contact-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.skill-card,
.case-card {
  min-height: 300px;
  padding: 24px;
}

.skill-card,
.case-card,
.cert-card,
.stream-card {
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.skill-card:hover,
.case-card:hover,
.cert-card:hover,
.stream-card:hover {
  border-color: rgba(32, 217, 255, 0.55);
  box-shadow: 0 24px 58px rgba(17, 118, 212, 0.18);
  transform: translateY(-4px);
}

.skill-card p,
.case-card p {
  margin: 14px 0 0;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.tags li {
  padding: 7px 10px;
  border: 1px solid #c8eaff;
  border-radius: 999px;
  background: #eef9ff;
  color: #0c5fa7;
  font-size: 0.82rem;
  font-weight: 800;
}

.streaming-section {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(8, 20, 35, 0.98), rgba(8, 45, 82, 0.96)),
    #081423;
  color: #f6fbff;
}

.streaming-section::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    repeating-linear-gradient(90deg, rgba(32, 217, 255, 0.08) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, rgba(93, 95, 239, 0.07) 0 1px, transparent 1px 72px);
  animation: streamGridDrift 16s linear infinite;
  pointer-events: none;
}

.streaming-section .container {
  position: relative;
}

.streaming-section h2,
.streaming-section h3 {
  color: #ffffff;
}

.stream-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 18px;
}

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

.stream-card {
  position: relative;
  overflow: hidden;
  min-height: 190px;
  padding: 24px;
  border: 1px solid rgba(148, 197, 255, 0.22);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 24px 58px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(14px);
}

.stream-card::after {
  position: absolute;
  inset: auto -20% -45% 30%;
  height: 140px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(32, 217, 255, 0.18), transparent);
  transform: rotate(-8deg);
}

.stream-card.featured {
  min-height: 100%;
  background:
    linear-gradient(135deg, rgba(17, 118, 212, 0.42), rgba(32, 217, 255, 0.12)),
    rgba(255, 255, 255, 0.08);
}

.stream-card p {
  position: relative;
  z-index: 1;
  color: rgba(246, 251, 255, 0.78);
}

.stream-status {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--signal);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stream-dot {
  display: block;
  width: 10px;
  height: 10px;
  margin-bottom: 18px;
  border-radius: 999px;
  background: var(--signal);
  box-shadow: 0 0 0 0 rgba(32, 217, 255, 0.55);
  animation: pulseDot 1800ms ease-out infinite;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 26px;
  padding: 28px 0;
  border-top: 1px solid rgba(31, 39, 37, 0.18);
}

.timeline-date {
  color: var(--violet);
  font-weight: 900;
}

.timeline-content .role {
  margin: 6px 0 10px;
  color: var(--accent);
  font-weight: 850;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.cert-card {
  padding: 24px;
}

.cert-provider {
  display: block;
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.text-link {
  display: inline-flex;
  margin-top: 22px;
  color: var(--accent-dark);
  font-weight: 900;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

.case-number {
  margin: 0 0 18px;
  color: var(--violet);
  font-weight: 950;
}

.contact-section {
  background:
    radial-gradient(circle at 12% 20%, rgba(32, 217, 255, 0.18), transparent 24%),
    linear-gradient(135deg, #081423, #0a315f 58%, #0b1d34);
  color: #f6fbff;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 64px;
  align-items: start;
}

.contact-copy {
  max-width: 640px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 1.1rem;
}

.contact-panel {
  display: grid;
  gap: 14px;
  padding: 24px;
  background: #f8fbff;
  color: var(--ink);
  font-style: normal;
}

.contact-panel a:not(.button):not(.text-link),
.contact-panel span {
  padding-bottom: 13px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-weight: 750;
}

.copy-button {
  width: 100%;
  border-color: var(--line);
  background: #eaf4ff;
  color: var(--ink);
}

.copy-button.copied {
  border-color: var(--accent);
  background: #dcf6ff;
  color: var(--accent-dark);
}

.site-footer {
  padding: 28px 20px;
  background: #081423;
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .skill-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cert-grid,
  .case-grid,
  .contact-layout,
  .stream-layout,
  .two-column {
    grid-template-columns: 1fr;
  }

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

  .contact-layout {
    gap: 34px;
  }
}

@media (max-width: 760px) {
  :root {
    --container: min(100% - 28px, 1120px);
  }

  .site-header {
    min-height: 66px;
    padding: 0 14px;
  }

  .menu-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    inset: 66px 14px auto 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--radius);
    background: rgba(31, 39, 37, 0.98);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.22);
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    padding: 13px 12px;
  }

  .hero {
    min-height: 88vh;
  }

  .hero-background {
    background-position: center center, 18% center;
    background-size: cover, cover;
  }

  .hero-overlay {
    background:
      linear-gradient(0deg, rgba(8, 20, 35, 0.9), rgba(8, 20, 35, 0.5)),
      linear-gradient(90deg, rgba(8, 20, 35, 0.78), rgba(8, 20, 35, 0.22)),
      repeating-linear-gradient(90deg, rgba(32, 217, 255, 0.08) 0 1px, transparent 1px 80px);
  }

  .hero-content {
    align-self: end;
    padding: 64px 0 58px;
  }

  .hero h1 {
    font-size: clamp(2.8rem, 17vw, 4.7rem);
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .section {
    padding: 66px 0;
  }

  .intro-band {
    padding-top: 28px;
  }

  .skill-grid,
  .case-grid,
  .stream-stack {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .skill-card,
  .case-card {
    min-height: auto;
  }
}

@keyframes gridDrift {
  from {
    background-position: 0 0, 0 0, 0 0, 0 0;
  }

  to {
    background-position: 0 0, 0 0, 96px 0, 0 96px;
  }
}

@keyframes streamGridDrift {
  from {
    background-position: 0 0, 0 0;
  }

  to {
    background-position: 72px 0, 0 72px;
  }
}

@keyframes scanSweep {
  0%,
  42% {
    transform: translateX(-120%);
  }

  58%,
  100% {
    transform: translateX(120%);
  }
}

@keyframes pulseDot {
  0% {
    box-shadow: 0 0 0 0 rgba(32, 217, 255, 0.55);
  }

  100% {
    box-shadow: 0 0 0 16px rgba(32, 217, 255, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  body.motion-ready .reveal {
    opacity: 1;
    transform: none;
  }
}