:root {
  --ps-blue: #012456;
  --ps-blue-dark: #00172d;
  --ps-blue-mid: #063b73;
  --ps-blue-soft: #0b4f8a;
  --panel: rgba(2, 30, 62, 0.76);
  --panel-strong: rgba(1, 22, 45, 0.92);
  --text: #eef8ff;
  --muted: #a9c8e8;
  --faint: #6f91b2;
  --cyan: #00bcf2;
  --cyan-soft: rgba(0, 188, 242, 0.14);
  --green: #9effc3;
  --border: rgba(169, 200, 232, 0.18);
  --shadow: 0 24px 90px rgba(0, 0, 0, 0.34);
  --max-width: 1060px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at 18% 10%, rgba(0, 188, 242, 0.16), transparent 28rem),
    radial-gradient(circle at 88% 18%, rgba(11, 79, 138, 0.48), transparent 34rem),
    radial-gradient(circle at 55% 92%, rgba(158, 255, 195, 0.08), transparent 32rem),
    linear-gradient(180deg, var(--ps-blue) 0%, var(--ps-blue-dark) 54%, #000b18 100%);
  color: var(--muted);
  line-height: 1.65;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 188, 242, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 188, 242, 0.045) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
}

.page-glow {
  position: fixed;
  width: 30rem;
  height: 30rem;
  right: -12rem;
  top: 8rem;
  border-radius: 50%;
  background: rgba(0, 188, 242, 0.12);
  filter: blur(90px);
  pointer-events: none;
}

a {
  color: inherit;
}

.site-header {
  max-width: 1240px;
  margin: 0 auto;
  padding: 28px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(1, 36, 86, 0.78);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 188, 242, 0.08);
}

.logo {
  color: var(--cyan);
  font-family: Consolas, "Courier New", monospace;
  font-weight: 800;
  text-decoration: none;
  font-size: 1rem;
  text-shadow: 0 0 18px rgba(0, 188, 242, 0.32);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.86rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.18s ease;
}

.site-nav a span {
  color: var(--cyan);
  margin-right: 4px;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--cyan);
}

main {
  width: min(var(--max-width), calc(100% - 48px));
  margin: 0 auto;
}

.hero {
  min-height: calc(100vh - 88px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 72px 0 110px;
}

.intro-line,
.section-kicker,
.project-label,
.status-title {
  color: var(--cyan);
  font-family: Consolas, "Courier New", monospace;
  font-weight: 700;
}

.intro-line {
  margin: 0 0 20px;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.06;
  letter-spacing: -0.04em;
}

h1 {
  color: var(--text);
  font-size: clamp(3rem, 8vw, 5.9rem);
}

h2 {
  color: #8fb8df;
  font-size: clamp(2.4rem, 7vw, 5rem);
  margin-top: 8px;
}

h3 {
  color: var(--text);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.hero-text {
  max-width: 690px;
  color: var(--muted);
  font-size: 1.08rem;
  margin: 28px 0 0;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid var(--cyan);
  border-radius: 5px;
  color: var(--cyan);
  text-decoration: none;
  font-family: Consolas, "Courier New", monospace;
  font-weight: 700;
  transition: transform 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.button:hover {
  transform: translate(-3px, -3px);
  background: var(--cyan-soft);
}

.button.primary {
  box-shadow: 4px 4px 0 var(--cyan);
}

.button.secondary {
  border-color: var(--border);
  color: var(--muted);
}

.mini-terminal {
  max-width: 610px;
  margin-top: 44px;
  border: 1px solid rgba(0, 188, 242, 0.28);
  background: rgba(0, 15, 34, 0.58);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(0, 188, 242, 0.18);
  background: rgba(1, 36, 86, 0.7);
}

.terminal-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal-bar span:nth-child(1) {
  background: #ff5f57;
}

.terminal-bar span:nth-child(2) {
  background: #ffbd2e;
}

.terminal-bar span:nth-child(3) {
  background: #28c840;
}

.terminal-bar p {
  margin: 0 0 0 8px;
  color: var(--faint);
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.82rem;
}

.terminal-body {
  padding: 16px 18px 20px;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.92rem;
}

.terminal-body p {
  margin: 7px 0;
}

.terminal-body span {
  color: var(--cyan);
}

.terminal-output {
  color: var(--muted);
  padding-left: 20px;
}

.section {
  padding: 96px 0;
}

.section-kicker {
  margin: 0 0 26px;
  font-size: 1.05rem;
}

.section-kicker span {
  color: var(--cyan);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 46px;
  align-items: start;
}

.about-grid p {
  margin-top: 0;
  color: var(--muted);
}

.tech-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(130px, 1fr));
  gap: 8px 18px;
  padding: 0;
  margin: 0;
  list-style: none;
  font-family: Consolas, "Courier New", monospace;
  color: var(--muted);
  font-size: 0.92rem;
}

.tech-list li::before {
  content: ">";
  color: var(--cyan);
  margin-right: 8px;
}

.project-card {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  padding: 28px;
  border: 1px solid rgba(0, 188, 242, 0.2);
  border-radius: 12px;
  background: rgba(1, 36, 86, 0.48);
  box-shadow: var(--shadow);
}

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

.project-status {
  background: rgba(0, 15, 34, 0.64);
  border: 1px solid rgba(0, 188, 242, 0.18);
  border-radius: 10px;
  padding: 22px;
}

.project-status ul {
  padding: 0;
  margin: 14px 0 20px;
  list-style: none;
  color: var(--muted);
}

.project-status li {
  margin: 9px 0;
}

.project-status li::before {
  content: "✓";
  color: var(--cyan);
  margin-right: 8px;
}

.project-status a,
.text-link {
  color: var(--cyan);
  font-family: Consolas, "Courier New", monospace;
  text-decoration: none;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.tag-list span {
  color: var(--cyan);
  background: var(--cyan-soft);
  border: 1px solid rgba(0, 188, 242, 0.24);
  border-radius: 999px;
  padding: 6px 10px;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.78rem;
}

.side-rail {
  position: fixed;
  bottom: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--faint);
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.78rem;
}

.side-rail a {
  color: var(--faint);
  text-decoration: none;
  transition: color 0.18s ease, transform 0.18s ease;
}

.side-rail a:hover {
  color: var(--cyan);
  transform: translateY(-3px);
}

.left-rail {
  left: 34px;
  flex-direction: column;
}

.right-rail {
  right: 34px;
  writing-mode: vertical-rl;
}

.side-rail::after {
  content: "";
  display: block;
  width: 1px;
  height: 90px;
  background: var(--faint);
  opacity: 0.55;
}

.site-footer {
  width: min(var(--max-width), calc(100% - 48px));
  margin: 0 auto;
  padding: 70px 0 42px;
  color: var(--faint);
  font-size: 0.9rem;
  text-align: center;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  animation: revealUp 0.65s ease forwards;
}

.section.reveal {
  animation-delay: 0.12s;
}

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

@media (max-width: 980px) {
  .side-rail {
    display: none;
  }
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 22px 24px;
  }

  .site-nav {
    gap: 14px;
  }

  main,
  .site-footer {
    width: min(100% - 36px, var(--max-width));
  }

  .hero {
    min-height: auto;
    padding: 64px 0 80px;
  }

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

  .section {
    padding: 74px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .button,
  .side-rail a {
    animation: none;
    transition: none;
    transform: none;
    opacity: 1;
  }
}

/* PowerShell font-colour polish */
:root {
  --ps-font: #e6f1ff;
  --ps-command: #00bcf2;
}

h1,
h3,
.terminal-output,
.project-card h3 {
  color: var(--ps-font);
}

.intro-line,
.section-kicker,
.project-label,
.status-title,
.terminal-body span,
.site-nav a span,
.logo {
  color: var(--ps-command);
}

.hero-text strong,
.project-card strong {
  color: var(--ps-font);
}

/* Project page */
.page-hero {
  min-height: 42vh;
  display: flex;
  flex-direction: column;
  justify-content: end;
  padding: 90px 0 70px;
}

.page-hero h1 {
  color: var(--ps-font);
  font-size: clamp(3rem, 8vw, 5.4rem);
}

.case-study {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 28px;
  padding: 32px;
  border: 1px solid rgba(0, 188, 242, 0.22);
  border-radius: 14px;
  background: rgba(1, 36, 86, 0.48);
  box-shadow: var(--shadow);
}

.case-main p,
.case-aside p,
.evidence-card p,
.placeholder-project p {
  color: var(--muted);
}

.case-main h2 {
  color: var(--ps-font);
  font-size: clamp(2rem, 4vw, 3.2rem);
  margin-bottom: 22px;
}

.case-aside,
.evidence-card,
.placeholder-project {
  background: rgba(0, 15, 34, 0.62);
  border: 1px solid rgba(0, 188, 242, 0.2);
  border-radius: 12px;
}

.case-aside {
  padding: 24px;
}

.case-aside ul {
  padding: 0;
  margin: 14px 0 22px;
  list-style: none;
  color: var(--muted);
}

.case-aside li {
  margin: 10px 0;
}

.case-aside li::before {
  content: "✓";
  color: var(--cyan);
  margin-right: 8px;
}

.small-note {
  font-size: 0.9rem;
  border-top: 1px solid rgba(0, 188, 242, 0.18);
  padding-top: 16px;
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 24px;
}

.evidence-card,
.placeholder-project {
  padding: 24px;
}

.evidence-card h3,
.placeholder-project h3 {
  color: var(--ps-font);
}

.placeholder-project {
  max-width: 720px;
}

@media (max-width: 760px) {
  .case-study,
  .evidence-grid {
    grid-template-columns: 1fr;
  }

  .page-hero {
    min-height: auto;
    padding: 64px 0 50px;
  }
}

/* CV page */
.cv-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
}

.cv-main,
.cv-side {
  border: 1px solid rgba(0, 188, 242, 0.2);
  border-radius: 12px;
  background: rgba(1, 36, 86, 0.48);
  box-shadow: var(--shadow);
  padding: 28px;
}

.cv-main p,
.cv-side li {
  color: var(--muted);
}

.cv-side ul {
  padding: 0;
  margin: 14px 0 0;
  list-style: none;
}

.cv-side li {
  margin: 10px 0;
}

.cv-side li::before {
  content: ">";
  color: var(--cyan);
  margin-right: 8px;
}

.compact-case {
  margin-top: 0;
}

@media (max-width: 760px) {
  .cv-grid {
    grid-template-columns: 1fr;
  }
}

/* Contact page */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.contact-card {
  border: 1px solid rgba(0, 188, 242, 0.2);
  border-radius: 12px;
  background: rgba(1, 36, 86, 0.48);
  box-shadow: var(--shadow);
  padding: 26px;
}

.contact-card h3 {
  color: var(--ps-font);
  margin-bottom: 14px;
}

.contact-card p {
  color: var(--muted);
}

.contact-card .button {
  margin-top: 16px;
}

.contact-terminal {
  max-width: 760px;
}

@media (max-width: 760px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* CV download panel */
.cv-download-panel {
  border: 1px solid rgba(0, 188, 242, 0.22);
  border-radius: 12px;
  background: rgba(1, 36, 86, 0.48);
  box-shadow: var(--shadow);
  padding: 26px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}

.cv-download-panel h3 {
  color: var(--ps-font);
  margin-bottom: 12px;
}

.cv-download-panel p {
  color: var(--muted);
}

.cv-download-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

@media (max-width: 760px) {
  .cv-download-panel {
    flex-direction: column;
    align-items: flex-start;
  }

  .cv-download-actions {
    justify-content: flex-start;
  }
}