/*
  Jordan — Portfolio
  Quick color edits live in :root. Search index.html for "REPLACE:" before publishing.
*/

:root {
  --navy-950: #030814;
  --navy-925: #050c1a;
  --navy-900: #071225;
  --navy-850: #0a1930;
  --navy-800: #0d2040;
  --navy-700: #163158;
  --navy-600: #244a7d;
  --blue-500: #3478f6;
  --blue-400: #57a3ff;
  --cyan-400: #59d7e7;
  --mint-400: #6ce2b1;
  --white: #f7fbff;
  --ice: #dfeaf7;
  --slate: #9eb0c6;
  --slate-dark: #74879d;
  --border: rgba(166, 199, 235, 0.15);
  --border-strong: rgba(114, 181, 255, 0.28);
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.28);
  --page-width: 1240px;
  --header-height: 82px;
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 28px);
}

body {
  margin: 0;
  color: var(--ice);
  background:
    radial-gradient(circle at 80% 5%, rgba(43, 103, 190, 0.18), transparent 25rem),
    radial-gradient(circle at 5% 34%, rgba(23, 72, 135, 0.13), transparent 34rem),
    var(--navy-950);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(91, 145, 202, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 145, 202, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  content: "";
  pointer-events: none;
  mask-image: linear-gradient(to bottom, black, transparent 82%);
}

::selection {
  color: var(--white);
  background: rgba(52, 120, 246, 0.55);
}

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

button,
a,
summary {
  -webkit-tap-highlight-color: transparent;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 16px;
  color: var(--navy-950);
  background: var(--white);
  border-radius: 8px;
  font-weight: 700;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-shell {
  width: min(calc(100% - 40px), var(--page-width));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  background: rgba(3, 8, 20, 0.8);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(18px);
}

.site-header::before {
  position: absolute;
  right: 100%;
  left: calc((100vw - 100%) / -2);
  bottom: -1px;
  height: 1px;
  background: var(--border);
  content: "";
}

.site-header::after {
  position: absolute;
  right: calc((100vw - 100%) / -2);
  left: 100%;
  bottom: -1px;
  height: 1px;
  background: var(--border);
  content: "";
}

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

.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: linear-gradient(145deg, var(--blue-500), #2454b1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 12px;
  box-shadow: 0 10px 28px rgba(35, 99, 211, 0.3);
  font: 800 18px/1 var(--mono);
}

.brand-copy {
  display: grid;
  line-height: 1.05;
}

.brand-copy strong {
  color: var(--white);
  font-size: 13px;
  letter-spacing: 0.18em;
}

.brand-copy small {
  margin-top: 6px;
  color: var(--slate-dark);
  font: 600 9px/1 var(--mono);
  letter-spacing: 0.12em;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.desktop-nav a {
  padding: 10px 14px;
  color: var(--slate);
  border-radius: 10px;
  font-size: 13px;
  font-weight: 650;
  transition: color 180ms ease, background-color 180ms ease, transform 180ms ease;
}

.desktop-nav a:hover,
.desktop-nav a:focus-visible {
  color: var(--white);
  background: rgba(255, 255, 255, 0.05);
}

.desktop-nav .nav-cta {
  margin-left: 8px;
  padding-inline: 18px;
  color: var(--white);
  background: var(--navy-800);
  border: 1px solid var(--border-strong);
}

.desktop-nav .nav-cta:hover,
.desktop-nav .nav-cta:focus-visible {
  background: var(--navy-700);
  transform: translateY(-1px);
}

.mobile-menu {
  position: relative;
  display: none;
}

.mobile-menu summary {
  padding: 9px 13px;
  color: var(--white);
  background: var(--navy-850);
  border: 1px solid var(--border);
  border-radius: 9px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  list-style: none;
}

.mobile-menu summary::-webkit-details-marker {
  display: none;
}

.mobile-menu nav {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 190px;
  display: grid;
  padding: 10px;
  background: rgba(7, 18, 37, 0.98);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.mobile-menu nav a {
  padding: 10px 12px;
  color: var(--slate);
  border-radius: 8px;
  font-size: 14px;
}

.mobile-menu nav a:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.06);
}

.hero {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(450px, 0.95fr);
  align-items: center;
  gap: clamp(40px, 7vw, 96px);
  padding: 92px 0 90px;
}

.hero::after {
  position: absolute;
  right: 0;
  bottom: 30px;
  width: 70px;
  height: 1px;
  background: var(--border-strong);
  box-shadow: -88px 0 0 var(--border), -176px 0 0 var(--border);
  content: "";
}

.eyebrow,
.section-kicker {
  margin: 0 0 24px;
  color: var(--cyan-400);
  font: 700 11px/1.4 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
}

.status-dot {
  position: relative;
  width: 8px;
  height: 8px;
  background: var(--mint-400);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(108, 226, 177, 0.08), 0 0 18px rgba(108, 226, 177, 0.55);
}

.status-dot::after {
  position: absolute;
  inset: -5px;
  border: 1px solid rgba(108, 226, 177, 0.3);
  border-radius: 50%;
  content: "";
  animation: pulse 2.4s ease-out infinite;
}

@keyframes pulse {
  0% { opacity: 0; transform: scale(0.7); }
  30% { opacity: 1; }
  100% { opacity: 0; transform: scale(1.8); }
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  color: var(--white);
  font-size: clamp(3.4rem, 6.4vw, 6.7rem);
  font-weight: 760;
  line-height: 0.96;
  letter-spacing: -0.062em;
}

.hero h1 span {
  display: block;
  color: transparent;
  background: linear-gradient(100deg, var(--blue-400), var(--cyan-400) 62%, #9eeef5);
  background-clip: text;
  -webkit-background-clip: text;
}

.hero-intro {
  max-width: 680px;
  margin: 30px 0 0;
  color: var(--slate);
  font-size: clamp(1rem, 1.3vw, 1.16rem);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 750;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

.button span {
  font-size: 16px;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--blue-500), #2154c5);
  box-shadow: 0 16px 34px rgba(35, 94, 205, 0.25);
}

.button-primary:hover,
.button-primary:focus-visible {
  box-shadow: 0 20px 45px rgba(35, 94, 205, 0.38);
}

.button-secondary {
  color: var(--ice);
  background: rgba(13, 32, 64, 0.55);
  border-color: var(--border);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: var(--navy-800);
  border-color: var(--border-strong);
}

.hero-stats {
  max-width: 610px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 54px 0 0;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.hero-stats div {
  padding: 0 24px;
  border-right: 1px solid var(--border);
}

.hero-stats div:first-child { padding-left: 0; }
.hero-stats div:last-child { border-right: 0; }

.hero-stats dt {
  color: var(--white);
  font: 700 21px/1.1 var(--mono);
}

.hero-stats dd {
  margin: 7px 0 0;
  color: var(--slate-dark);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero-visual {
  position: relative;
  min-height: 590px;
  display: grid;
  align-items: center;
}

.visual-glow {
  position: absolute;
  top: 18%;
  left: 12%;
  width: 74%;
  aspect-ratio: 1;
  background: rgba(43, 112, 224, 0.23);
  border-radius: 50%;
  filter: blur(70px);
}

.console-window {
  position: relative;
  z-index: 2;
  overflow: hidden;
  background: linear-gradient(160deg, rgba(13, 32, 64, 0.96), rgba(5, 13, 28, 0.97));
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transform: perspective(1200px) rotateY(-3deg) rotateX(1deg);
}

.console-window::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(255, 255, 255, 0.04), transparent 30%);
  content: "";
  pointer-events: none;
}

.console-bar {
  height: 58px;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 22px;
  background: rgba(255, 255, 255, 0.025);
  border-bottom: 1px solid var(--border);
}

.console-bar > span {
  width: 8px;
  height: 8px;
  background: #28496e;
  border-radius: 50%;
}

.console-bar > span:nth-child(2) { background: #326093; }
.console-bar > span:nth-child(3) { background: var(--blue-500); }

.console-bar p {
  margin: 0 0 0 12px;
  color: var(--slate-dark);
  font: 600 10px/1 var(--mono);
  letter-spacing: 0.08em;
}

.topology {
  padding: 28px 28px 32px;
}

.topology-node {
  position: relative;
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: rgba(12, 33, 66, 0.65);
  border: 1px solid var(--border);
  border-radius: 15px;
}

.node-firewall {
  background: linear-gradient(100deg, rgba(36, 81, 155, 0.33), rgba(10, 26, 52, 0.75));
  border-color: rgba(80, 151, 255, 0.3);
}

.node-icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: var(--cyan-400);
  background: rgba(89, 215, 231, 0.06);
  border: 1px solid rgba(89, 215, 231, 0.18);
  border-radius: 11px;
  font: 700 11px/1 var(--mono);
}

.topology-node div {
  display: grid;
  line-height: 1.2;
}

.topology-node small,
.branch-card small {
  color: var(--slate-dark);
  font: 700 9px/1 var(--mono);
  letter-spacing: 0.12em;
}

.topology-node strong {
  margin-top: 6px;
  color: var(--white);
  font-size: 15px;
}

.node-state {
  padding: 5px 7px;
  color: var(--mint-400);
  background: rgba(108, 226, 177, 0.06);
  border: 1px solid rgba(108, 226, 177, 0.13);
  border-radius: 6px;
  font: 700 8px/1 var(--mono);
  letter-spacing: 0.1em;
}

.topology-line {
  width: 1px;
  height: 26px;
  margin-inline: auto;
  background: linear-gradient(var(--blue-500), rgba(52, 120, 246, 0.15));
}

.topology-branches {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding-top: 22px;
}

.topology-branches::before {
  position: absolute;
  top: 0;
  right: 16.66%;
  left: 16.66%;
  height: 1px;
  background: var(--border-strong);
  content: "";
}

.branch-card {
  position: relative;
  min-height: 114px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 14px;
  background: rgba(6, 17, 35, 0.78);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.branch-card::before {
  position: absolute;
  top: -22px;
  left: 50%;
  width: 1px;
  height: 22px;
  background: var(--border-strong);
  content: "";
}

.branch-card strong {
  margin-top: 8px;
  color: var(--ice);
  font-size: 12px;
}

.branch-card > span {
  margin-top: 6px;
  color: var(--slate-dark);
  font-size: 9px;
  line-height: 1.45;
}

.branch-card-accent {
  background: rgba(34, 86, 177, 0.18);
  border-color: rgba(75, 148, 255, 0.34);
  box-shadow: inset 0 0 34px rgba(36, 95, 192, 0.08);
}

.console-footer {
  display: flex;
  justify-content: center;
  gap: 28px;
  padding: 16px;
  border-top: 1px solid var(--border);
  color: var(--slate-dark);
  font: 600 8px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.console-footer span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.console-footer i {
  width: 5px;
  height: 5px;
  background: var(--mint-400);
  border-radius: 50%;
  box-shadow: 0 0 9px rgba(108, 226, 177, 0.5);
}

.signal-strip {
  position: relative;
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-inline: calc((100vw - 100%) / -2);
  padding-inline: max(24px, calc((100vw - var(--page-width)) / 2));
  overflow: hidden;
  color: var(--slate-dark);
  background: var(--navy-900);
  border-block: 1px solid var(--border);
  white-space: nowrap;
}

.signal-strip p {
  margin: 0;
  font: 700 10px/1 var(--mono);
  letter-spacing: 0.13em;
}

.signal-strip span {
  color: var(--blue-500);
  font-size: 7px;
}

.section {
  padding: 140px 0;
  border-bottom: 1px solid var(--border);
}

.section-heading {
  margin-bottom: 60px;
}

.section-heading-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
}

.section h2 {
  max-width: 820px;
  margin: 0;
  color: var(--white);
  font-size: clamp(2.3rem, 4.5vw, 4.6rem);
  font-weight: 730;
  line-height: 1.04;
  letter-spacing: -0.048em;
}

.section-note {
  max-width: 340px;
  margin: 0 0 5px;
  color: var(--slate-dark);
  font-size: 13px;
  line-height: 1.65;
}

.about-section {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: clamp(60px, 8vw, 130px);
}

.about-section .section-heading {
  margin: 0;
}

.about-section h2 {
  font-size: clamp(2.5rem, 4vw, 4.3rem);
}

.about-lead {
  max-width: 760px;
  margin: 0;
  color: var(--ice);
  font-size: clamp(1.35rem, 2vw, 1.8rem);
  line-height: 1.5;
  letter-spacing: -0.015em;
}

.about-columns {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 34px;
  margin-top: 34px;
}

.about-columns p {
  margin: 0;
  color: var(--slate);
  font-size: 14px;
  line-height: 1.85;
}

.work-column {
  padding: 26px;
  background: linear-gradient(150deg, rgba(12, 31, 61, 0.62), rgba(6, 16, 33, 0.48));
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.work-column h3 {
  margin: 0 0 20px;
  color: var(--white);
  font-size: 14px;
  letter-spacing: -0.01em;
}

.work-list {
  display: grid;
  gap: 13px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.work-list li {
  position: relative;
  padding-left: 18px;
  color: var(--slate);
  font-size: 12px;
  line-height: 1.65;
}

.work-list li::before {
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--blue-500);
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(52, 120, 246, 0.5);
  content: "";
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 48px;
}

.principles article {
  min-height: 190px;
  padding: 22px;
  background: linear-gradient(160deg, rgba(12, 31, 61, 0.72), rgba(6, 16, 33, 0.6));
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.principles span {
  color: var(--cyan-400);
  font: 700 10px/1 var(--mono);
}

.principles h3 {
  margin: 28px 0 8px;
  color: var(--white);
  font-size: 15px;
}

.principles p {
  margin: 0;
  color: var(--slate-dark);
  font-size: 12px;
  line-height: 1.65;
}

.skills-section {
  position: relative;
}

.skill-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.skill-card {
  position: relative;
  min-height: 330px;
  padding: 30px;
  overflow: hidden;
  background: linear-gradient(145deg, rgba(13, 32, 64, 0.72), rgba(5, 13, 28, 0.72));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: transform 220ms ease, border-color 220ms ease, background 220ms ease;
}

.skill-card::after {
  position: absolute;
  right: -60px;
  bottom: -90px;
  width: 210px;
  height: 210px;
  background: radial-gradient(circle, rgba(52, 120, 246, 0.12), transparent 68%);
  content: "";
}

.skill-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
}

.featured-skill {
  background: linear-gradient(145deg, rgba(24, 62, 122, 0.68), rgba(6, 17, 36, 0.78));
  border-color: rgba(85, 156, 255, 0.28);
}

.skill-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.skill-number {
  color: var(--cyan-400);
  font: 700 10px/1 var(--mono);
}

.skill-symbol {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: var(--blue-400);
  background: rgba(52, 120, 246, 0.07);
  border: 1px solid rgba(76, 150, 255, 0.18);
  border-radius: 11px;
  font: 700 15px/1 var(--mono);
}

.skill-card h3 {
  margin: 52px 0 12px;
  color: var(--white);
  font-size: 22px;
  letter-spacing: -0.02em;
}

.skill-card > p {
  max-width: 520px;
  margin: 0;
  color: var(--slate);
  font-size: 13px;
  line-height: 1.75;
}

.tag-list,
.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.tag-list li,
.project-stack span {
  padding: 6px 9px;
  color: var(--slate);
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--border);
  border-radius: 7px;
  font: 600 9px/1 var(--mono);
  letter-spacing: 0.04em;
}

.projects-list {
  border-top: 1px solid var(--border);
}

.project {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr) minmax(270px, 0.54fr);
  gap: clamp(30px, 5vw, 70px);
  padding: 62px 0;
  border-bottom: 1px solid var(--border);
}

.project:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.project-index {
  display: flex;
  flex-direction: column;
  gap: 13px;
  padding-top: 5px;
}

.project-index span {
  color: var(--blue-400);
  font: 700 23px/1 var(--mono);
}

.project-index small {
  color: var(--slate-dark);
  font: 700 8px/1.5 var(--mono);
  letter-spacing: 0.1em;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-meta span {
  color: var(--cyan-400);
  font: 700 9px/1 var(--mono);
  letter-spacing: 0.1em;
}

.project-meta span + span::before {
  margin-right: 8px;
  color: var(--navy-600);
  content: "/";
}

.project h3 {
  margin: 14px 0 17px;
  color: var(--white);
  font-size: clamp(1.65rem, 2.5vw, 2.65rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
}

.project-summary {
  max-width: 710px;
  margin: 0;
  color: var(--slate);
  font-size: 14px;
  line-height: 1.8;
}

.project-details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 30px;
  padding-top: 26px;
  border-top: 1px solid var(--border);
}

.project-details small {
  color: var(--blue-400);
  font: 700 8px/1 var(--mono);
  letter-spacing: 0.1em;
}

.project-details p {
  margin: 9px 0 0;
  color: var(--slate-dark);
  font-size: 11px;
  line-height: 1.65;
}

.project-visual {
  position: relative;
  min-height: 320px;
  align-self: center;
  overflow: hidden;
  background:
    linear-gradient(rgba(74, 129, 192, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74, 129, 192, 0.04) 1px, transparent 1px),
    linear-gradient(145deg, rgba(15, 40, 79, 0.8), rgba(4, 12, 27, 0.9));
  background-size: 24px 24px, 24px 24px, 100% 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.project-visual::after {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 20%, rgba(49, 117, 229, 0.14), transparent 55%);
  content: "";
  pointer-events: none;
}

.rack {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 1;
  width: 75%;
  padding: 14px;
  background: rgba(3, 10, 23, 0.85);
  border: 1px solid rgba(105, 164, 231, 0.23);
  border-radius: 14px;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.35);
  transform: translate(-50%, -50%);
}

.rack > div {
  display: grid;
  grid-template-columns: 10px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 13px 10px;
  border-bottom: 1px solid rgba(134, 176, 220, 0.09);
}

.rack > div:last-child { border-bottom: 0; }
.rack i { width: 6px; height: 6px; background: var(--mint-400); border-radius: 50%; box-shadow: 0 0 8px var(--mint-400); }
.rack span { color: var(--ice); font: 700 9px/1 var(--mono); letter-spacing: 0.06em; }
.rack b { color: var(--slate-dark); font: 700 7px/1 var(--mono); letter-spacing: 0.08em; }

.vpn-orbit {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 1;
  border: 1px solid rgba(85, 160, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.orbit-one { width: 210px; height: 210px; }
.orbit-two { width: 290px; height: 150px; transform: translate(-50%, -50%) rotate(-22deg); }

.vpn-orbit::before,
.vpn-orbit::after {
  position: absolute;
  width: 7px;
  height: 7px;
  background: var(--cyan-400);
  border: 3px solid var(--navy-900);
  border-radius: 50%;
  box-shadow: 0 0 14px rgba(89, 215, 231, 0.75);
  content: "";
}

.vpn-orbit::before { top: 18%; left: 11%; }
.vpn-orbit::after { right: 7%; bottom: 23%; }

.vpn-core {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  width: 112px;
  height: 112px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: linear-gradient(145deg, #2b73e9, #173e8b);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 50%;
  box-shadow: 0 0 45px rgba(43, 115, 233, 0.4);
  font: 800 26px/1 var(--mono);
  transform: translate(-50%, -50%);
}

.vpn-core span { position: absolute; bottom: 27px; font: 700 6px/1 var(--mono); letter-spacing: 0.1em; opacity: 0.72; }
.vpn-label { position: absolute; z-index: 3; padding: 7px 9px; color: var(--slate); background: rgba(5, 14, 31, 0.9); border: 1px solid var(--border); border-radius: 6px; font: 700 7px/1 var(--mono); letter-spacing: 0.09em; }
.label-a { top: 24%; left: 9%; }
.label-b { right: 8%; bottom: 24%; }

.visual-directory {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.directory-root {
  position: relative;
  z-index: 2;
  width: 84px;
  height: 48px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: linear-gradient(135deg, #2e79f3, #1e4ea3);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  font: 800 12px/1 var(--mono);
  box-shadow: 0 16px 34px rgba(29, 81, 172, 0.33);
}

.tree-line-main { width: 1px; height: 38px; background: var(--border-strong); }

.directory-level {
  position: relative;
  z-index: 2;
  width: 90%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.directory-level::before {
  position: absolute;
  top: -16px;
  right: 16.66%;
  left: 16.66%;
  height: 1px;
  background: var(--border-strong);
  content: "";
}

.directory-level div {
  position: relative;
  padding: 15px 4px;
  color: var(--slate);
  background: rgba(5, 15, 33, 0.88);
  border: 1px solid var(--border);
  border-radius: 9px;
  text-align: center;
  font: 700 7px/1 var(--mono);
  letter-spacing: 0.06em;
}

.directory-level div::before { position: absolute; bottom: 100%; left: 50%; width: 1px; height: 16px; background: var(--border-strong); content: ""; }
.directory-status { z-index: 2; display: flex; align-items: center; gap: 7px; margin-top: 30px; color: var(--slate-dark); font: 700 7px/1 var(--mono); letter-spacing: 0.08em; }
.directory-status i { width: 6px; height: 6px; background: var(--mint-400); border-radius: 50%; box-shadow: 0 0 8px var(--mint-400); }

.visual-terminal {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 30px;
  font-family: var(--mono);
}

.terminal-line {
  z-index: 2;
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(148, 184, 222, 0.08);
  font-size: 8px;
  letter-spacing: 0.04em;
}

.terminal-line b { color: var(--mint-400); }
.terminal-line span { color: var(--slate); }
.terminal-line.warn b { color: #f7c86d; }
.terminal-cursor { z-index: 2; display: flex; align-items: center; gap: 7px; margin-top: 24px; color: var(--blue-400); font-size: 8px; }
.terminal-cursor i { width: 7px; height: 12px; background: var(--cyan-400); animation: blink 1s steps(2, start) infinite; }

@keyframes blink { 50% { opacity: 0; } }

.visual-scan {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 30px;
  font-family: var(--mono);
}

.visual-scan > div {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 10px;
  color: var(--slate);
  border-bottom: 1px solid rgba(148, 184, 222, 0.09);
  font-size: 8px;
}

.visual-scan .scan-head { color: var(--slate-dark); font-size: 7px; letter-spacing: 0.1em; }
.visual-scan b { color: var(--slate-dark); font-size: 7px; letter-spacing: 0.06em; }
.visual-scan .scan-accent { margin-top: 10px; color: var(--white); background: rgba(35, 94, 196, 0.16); border: 1px solid rgba(76, 150, 255, 0.23); border-radius: 8px; }
.visual-scan .scan-accent b { color: var(--mint-400); }

.visual-packet {
  display: grid;
  grid-template-columns: 58px 1fr 58px;
  align-content: center;
  align-items: center;
  gap: 12px;
  padding: 28px;
}

.packet-source,
.packet-target {
  position: relative;
  z-index: 2;
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: rgba(12, 35, 72, 0.95);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  font: 800 9px/1 var(--mono);
}

.packet-target { background: linear-gradient(145deg, #2c6fde, #153978); box-shadow: 0 0 30px rgba(44, 111, 222, 0.3); }

.packet-stream {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
}

.packet-stream::before { position: absolute; top: 50%; right: 0; left: 0; height: 1px; background: var(--border-strong); content: ""; }
.packet-stream i { position: relative; width: 5px; height: 5px; background: var(--cyan-400); border-radius: 50%; box-shadow: 0 0 8px var(--cyan-400); }
.packet-code { position: relative; z-index: 2; grid-column: 1 / -1; margin-top: 24px; padding: 13px; color: var(--slate); background: rgba(4, 13, 29, 0.78); border: 1px solid var(--border); border-radius: 9px; text-align: center; font: 700 8px/1 var(--mono); }
.packet-code span { margin-left: 10px; color: var(--mint-400); }

.architecture-section {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  align-items: center;
  gap: clamp(70px, 9vw, 140px);
}

.architecture-copy > p:not(.section-kicker) {
  max-width: 520px;
  margin: 28px 0 0;
  color: var(--slate);
  font-size: 14px;
  line-height: 1.85;
}

.architecture-points {
  display: grid;
  gap: 22px;
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
}

.architecture-points li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 15px;
}

.architecture-points li > span {
  width: 31px;
  height: 31px;
  display: grid;
  place-items: center;
  color: var(--blue-400);
  background: rgba(52, 120, 246, 0.07);
  border: 1px solid rgba(76, 150, 255, 0.18);
  border-radius: 8px;
  font: 700 8px/1 var(--mono);
}

.architecture-points strong {
  color: var(--ice);
  font-size: 13px;
}

.architecture-points p {
  margin: 5px 0 0;
  color: var(--slate-dark);
  font-size: 11px;
  line-height: 1.65;
}

.architecture-map {
  position: relative;
  min-height: 540px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(28px, 4vw, 48px);
  background:
    radial-gradient(circle at 50% 5%, rgba(44, 111, 222, 0.14), transparent 42%),
    linear-gradient(145deg, rgba(13, 34, 68, 0.78), rgba(4, 12, 26, 0.84));
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.architecture-map::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(87, 150, 220, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(87, 150, 220, 0.035) 1px, transparent 1px);
  background-size: 30px 30px;
  border-radius: inherit;
  content: "";
}

.map-row {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.map-node {
  min-width: 115px;
  padding: 14px 15px;
  background: rgba(5, 16, 34, 0.92);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.map-node small {
  display: block;
  color: var(--slate-dark);
  font: 700 7px/1 var(--mono);
  letter-spacing: 0.1em;
}

.map-node strong {
  display: block;
  margin-top: 8px;
  color: var(--ice);
  font-size: 12px;
}

.map-node-accent {
  background: rgba(35, 91, 187, 0.28);
  border-color: rgba(78, 152, 255, 0.34);
}

.map-arrow { color: var(--blue-400); font: 700 14px/1 var(--mono); }
.map-spine { position: relative; z-index: 2; width: 1px; height: 68px; margin-inline: auto; background: linear-gradient(var(--blue-500), rgba(52, 120, 246, 0.12)); }

.map-zones {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.map-zones::before {
  position: absolute;
  top: -20px;
  right: 16.67%;
  left: 16.67%;
  height: 1px;
  background: var(--border-strong);
  content: "";
}

.map-zones article {
  position: relative;
  min-height: 160px;
  padding: 19px 16px;
  background: rgba(5, 15, 32, 0.9);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.map-zones article::before { position: absolute; bottom: 100%; left: 50%; width: 1px; height: 20px; background: var(--border-strong); content: ""; }
.map-zones article > span { color: var(--blue-400); font: 700 7px/1 var(--mono); letter-spacing: 0.1em; }
.map-zones h3 { margin: 20px 0 8px; color: var(--white); font-size: 13px; }
.map-zones p { margin: 0; color: var(--slate-dark); font-size: 9px; line-height: 1.6; }
.zone-state { position: absolute; bottom: 17px; left: 16px; color: var(--mint-400); font: 700 7px/1 var(--mono); font-style: normal; letter-spacing: 0.08em; }
.map-legend { position: relative; z-index: 2; display: flex; justify-content: center; gap: 24px; margin-top: 32px; color: var(--slate-dark); font: 700 7px/1 var(--mono); letter-spacing: 0.08em; }
.map-legend span { display: flex; align-items: center; gap: 6px; }
.map-legend i { width: 5px; height: 5px; background: var(--mint-400); border-radius: 50%; }

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.roadmap-grid article {
  min-height: 240px;
  padding: 28px;
  background: linear-gradient(145deg, rgba(12, 31, 62, 0.65), rgba(5, 14, 29, 0.7));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.roadmap-grid span {
  padding: 5px 7px;
  color: var(--cyan-400);
  background: rgba(89, 215, 231, 0.05);
  border: 1px solid rgba(89, 215, 231, 0.14);
  border-radius: 6px;
  font: 700 7px/1 var(--mono);
  letter-spacing: 0.1em;
}

.roadmap-grid h3 {
  margin: 60px 0 12px;
  color: var(--white);
  font-size: 20px;
  letter-spacing: -0.02em;
}

.roadmap-grid p {
  margin: 0;
  color: var(--slate-dark);
  font-size: 12px;
  line-height: 1.7;
}

.contact-section {
  position: relative;
  min-height: 520px;
  display: grid;
  place-items: center;
  margin-inline: calc((100vw - 100%) / -2);
  padding: 110px max(24px, calc((100vw - var(--page-width)) / 2));
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 18%, rgba(89, 215, 231, 0.13), transparent 24rem),
    linear-gradient(125deg, #174da5, #0d2f6b 52%, #08204a);
}

.contact-section::before {
  position: absolute;
  top: -280px;
  left: -130px;
  width: 610px;
  height: 610px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  content: "";
}

.contact-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(90deg, transparent, black 32%, black 80%, transparent);
}

.contact-content {
  position: relative;
  z-index: 2;
  width: min(100%, 920px);
  text-align: center;
}

.contact-content .section-kicker { color: #9feaf2; }

.contact-content h2 {
  margin: 0;
  color: var(--white);
  font-size: clamp(2.9rem, 6vw, 6.2rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.contact-content > p:not(.section-kicker) {
  max-width: 660px;
  margin: 26px auto 0;
  color: rgba(231, 242, 255, 0.74);
  font-size: 15px;
  line-height: 1.8;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-top: 40px;
}

.button-light {
  color: #09204a;
  background: var(--white);
  box-shadow: 0 18px 40px rgba(0, 10, 32, 0.2);
}

.text-link {
  color: rgba(246, 251, 255, 0.8);
  border-bottom: 1px solid rgba(255, 255, 255, 0.24);
  font-size: 12px;
  font-weight: 700;
  transition: color 160ms ease, border-color 160ms ease;
}

.text-link:hover,
.text-link:focus-visible {
  color: var(--white);
  border-color: var(--white);
}

.site-footer {
  min-height: 150px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  color: var(--slate-dark);
}

.site-footer > p,
.site-footer > a:last-child {
  margin: 0;
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.site-footer > a:last-child:hover { color: var(--white); }

:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 4px;
}

@media (max-width: 1080px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 110px;
  }

  .hero-copy {
    max-width: 850px;
  }

  .hero-visual {
    min-height: 500px;
    width: min(100%, 720px);
    margin-inline: auto;
  }

  .about-section,
  .architecture-section {
    grid-template-columns: 1fr;
  }

  .about-section .section-heading { max-width: 720px; }
  .project { grid-template-columns: 74px minmax(0, 1fr); }
  .project-visual { grid-column: 2; min-height: 300px; }
  .architecture-copy { max-width: 740px; }
}

@media (max-width: 800px) {
  :root { --header-height: 72px; }
  .site-shell { width: min(calc(100% - 28px), var(--page-width)); }
  .desktop-nav { display: none; }
  .mobile-menu { display: block; }
  .hero { padding: 78px 0 70px; }
  .hero h1 { font-size: clamp(3rem, 13vw, 5.4rem); }
  .section { padding: 96px 0; }
  .section-heading-row { display: block; }
  .section-note { margin-top: 20px; }
  .about-columns,
  .principles,
  .skill-grid,
  .roadmap-grid { grid-template-columns: 1fr; }
  .principles article { min-height: auto; }
  .project { grid-template-columns: 1fr; gap: 26px; padding: 48px 0; }
  .project-index { flex-direction: row; align-items: baseline; }
  .project-visual { grid-column: 1; }
  .project-details { grid-template-columns: 1fr; }
  .project-details div { display: grid; grid-template-columns: 75px 1fr; gap: 12px; }
  .project-details p { margin-top: 0; }
  .signal-strip { justify-content: flex-start; overflow: hidden; }
  .signal-strip p:nth-of-type(n + 5),
  .signal-strip p:nth-of-type(n + 5) + span { display: none; }
  .site-footer { flex-direction: column; align-items: flex-start; justify-content: center; padding-block: 35px; }
}

@media (max-width: 580px) {
  .brand-copy small { display: none; }
  .hero-actions { display: grid; }
  .hero-actions .button { width: 100%; }
  .hero-stats { gap: 0; }
  .hero-stats div { padding: 0 12px; }
  .hero-stats dt { font-size: 17px; }
  .hero-stats dd { font-size: 8px; }
  .hero-visual { min-height: 440px; }
  .console-window { transform: none; border-radius: 20px; }
  .topology { padding: 20px 16px 24px; }
  .topology-branches { grid-template-columns: 1fr; gap: 8px; padding-top: 10px; }
  .topology-branches::before,
  .branch-card::before { display: none; }
  .branch-card { min-height: 76px; }
  .console-footer { gap: 13px; }
  .console-footer span:last-child { display: none; }
  .section h2 { font-size: clamp(2.2rem, 11vw, 3.4rem); }
  .about-lead { font-size: 1.2rem; }
  .skill-card { min-height: auto; padding: 24px; }
  .skill-card h3 { margin-top: 38px; }
  .project-visual { min-height: 270px; }
  .architecture-map { min-height: 600px; padding: 30px 18px; }
  .map-row-edge { display: grid; grid-template-columns: 1fr 18px 1fr; }
  .map-row-edge .map-node:last-child { grid-column: 1 / -1; width: 70%; margin: 10px auto 0; }
  .map-row-edge .map-arrow:last-of-type { display: none; }
  .map-zones { grid-template-columns: 1fr; }
  .map-zones::before,
  .map-zones article::before { display: none; }
  .map-zones article { min-height: 115px; }
  .map-legend { gap: 12px; }
  .contact-section { min-height: 560px; }
  .contact-actions { flex-direction: column; }
  .button-light { width: 100%; max-width: 340px; }
}

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

@media print {
  body { color: #17243a; background: white; }
  body::before, .site-header, .signal-strip, .hero-visual, .project-visual, .contact-grid { display: none !important; }
  .site-shell { width: 100%; }
  .hero { min-height: auto; display: block; padding: 40px 0; }
  .hero h1, .section h2, .project h3, .skill-card h3, .roadmap-grid h3 { color: #071225; }
  .hero h1 span { color: #174da5; background: none; }
  .hero-intro, .about-columns p, .project-summary, .skill-card > p, .roadmap-grid p { color: #43546b; }
  .section { padding: 48px 0; break-inside: avoid; }
  .project { grid-template-columns: 60px 1fr; break-inside: avoid; }
  .project-visual { display: none; }
  .skill-card, .principles article, .roadmap-grid article, .architecture-map { color: #17243a; background: #f3f7fb; box-shadow: none; }
  .contact-section { min-height: auto; margin: 0; padding: 60px 0; background: #174da5; }
  .site-footer { min-height: 90px; }
}