/* GitHub Pages static mirror — aligned with Next app (tube navy, cream hero, roundel) */
@import url("https://fonts.googleapis.com/css2?family=Barlow:ital,wght@0,100..900;1,100..900&display=swap");

:root {
  --tube-bg: #020824;
  --tube-text: #f9fafb;
  --tube-hero: #f5f0e6;
  --roundel-ring: #9364cc;
  --roundel-bar: #5e2f88;
  --roundel-decor: #4a2565;
  --accent-red: #f77f6b;
  --accent-blue: #003688;
  --maxw: 56rem;
  --header-h: 3.25rem;
  --chrome-border: rgba(255, 255, 255, 0.22);
  --chrome-bg: linear-gradient(
    180deg,
    #010613 0%,
    #050b22 45%,
    #0d1733 100%
  );
  --ghp-pill-radius: 0.5rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: Barlow, system-ui, sans-serif;
  background: var(--tube-bg);
  color: var(--tube-text);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.ghp-skip {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.ghp-skip:focus {
  position: fixed;
  left: 0.5rem;
  top: 0.5rem;
  z-index: 100;
  width: auto;
  height: auto;
  padding: 0.5rem 1rem;
  background: #fff;
  color: #000;
}

/* —— Floating chrome header (matches I18nShell / FloatingLocaleHeader dark) —— */
.ghp-chrome {
  position: fixed;
  left: 50%;
  top: 0.75rem;
  z-index: 50;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: center;
  gap: 0.22rem;
  max-width: calc(100vw - 1.25rem);
  padding: 0.3rem 0.85rem 0.34rem;
  border-radius: 1rem;
  border: 1px solid var(--chrome-border);
  background: var(--chrome-bg);
  color: #fff;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Matches earlier floating chrome copy (compact caption, not a section title). */
.ghp-chrome__mirror {
  margin: 0;
  padding: 0;
  width: 100%;
  text-align: center;
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  line-height: 1.2;
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.45);
}

@media (min-width: 640px) {
  .ghp-chrome__mirror {
    font-size: 0.6875rem;
    letter-spacing: 0.16em;
  }
}

.ghp-chrome__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  justify-content: center;
}

.ghp-chrome__links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.32rem 0.55rem;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.92);
  text-decoration: none;
  white-space: nowrap;
  border-radius: var(--ghp-pill-radius);
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.07);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.ghp-chrome__links a:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
}

/* —— Section nav (bottom float, scroll spy) —— */
.ghp-section-nav {
  position: fixed;
  left: 50%;
  bottom: 0.75rem;
  z-index: 40;
  transform: translateX(-50%);
  display: flex;
  flex-wrap: wrap;
  max-width: calc(100vw - 1rem);
  justify-content: center;
  gap: 0.2rem;
  padding: 0.35rem 0.5rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(1, 6, 19, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.ghp-section-nav.is-hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(12px);
}

.ghp-section-nav span[aria-hidden] {
  font-size: 0.55rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  width: 100%;
  text-align: center;
  margin-bottom: 0.1rem;
}

.ghp-section-nav a {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.65);
  padding: 0.32rem 0.5rem;
  border-radius: var(--ghp-pill-radius);
  line-height: 1;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.ghp-section-nav a:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.08);
}

.ghp-section-nav a.is-active {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.35);
  color: #fff;
}

@media (min-width: 640px) {
  .ghp-section-nav a {
    font-size: 0.7rem;
    padding: 0.3rem 0.55rem;
  }
}

/* —— Hero —— */
.ghp-hero-light {
  background: var(--tube-hero);
  color: #000;
  text-align: center;
  padding-top: calc(3.5rem + env(safe-area-inset-top, 0) + 2.75rem);
  padding-bottom: 2rem;
}

@media (min-width: 640px) {
  .ghp-hero-light {
    padding-top: calc(4rem + env(safe-area-inset-top, 0) + 3rem);
    padding-bottom: 2rem;
  }
}

.ghp-hero-light .ghp-landmark-label {
  margin: 1rem 0 0;
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #4b5563;
}

@media (min-width: 640px) {
  .ghp-hero-light .ghp-landmark-label {
    font-size: 0.7rem;
    letter-spacing: 0.26em;
  }
}

.ghp-hero-light .ghp-hero-lines {
  margin: 0.5rem 0 0;
  font-size: 1.5rem;
  line-height: 1.25;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  font-weight: 400;
}

@media (min-width: 640px) {
  .ghp-hero-light .ghp-hero-lines {
    font-size: 1.75rem;
  }
}

.ghp-hero-light .ghp-email {
  display: block;
  margin-top: 0.5rem;
  color: #000;
  text-decoration: none;
}

.ghp-hero-light .ghp-email:hover {
  text-decoration: underline;
}

/* —— Roundel + 787 wings —— */
.ghp-roundel-wrap {
  position: relative;
  width: 140px;
  height: 140px;
  margin: 0 auto;
}

.ghp-roundel-wrap a {
  text-decoration: none;
  color: inherit;
}

.ghp-wings {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 140px;
  height: 140px;
  overflow: visible;
  pointer-events: none;
  z-index: 0;
}

.ghp-roundel {
  position: relative;
  z-index: 1;
  width: 140px;
  height: 140px;
  margin: 0 auto;
  border-radius: 50%;
  background: var(--roundel-ring);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ghp-roundel__waves {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 120%;
  height: 120%;
  transform: translate(-50%, -50%);
  z-index: 1;
  clip-path: inset(54% -10% -5% -10%);
  -webkit-clip-path: inset(54% -10% -5% -10%);
  pointer-events: none;
}

.ghp-roundel__waves line {
  stroke: var(--roundel-decor);
  stroke-width: 1.2;
  fill: none;
}

.ghp-roundel__landmark {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 128%;
  height: 128%;
  transform: translate(-50%, -50%);
  background-color: var(--roundel-decor);
  opacity: 0.48;
  z-index: 0;
  -webkit-mask-image: url("assets/tower-bridge-roundel.svg");
  mask-image: url("assets/tower-bridge-roundel.svg");
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  -webkit-mask-size: contain;
  mask-size: contain;
}

.ghp-roundel__hole {
  position: absolute;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: #fff;
  z-index: 2;
}

.ghp-roundel__bar {
  position: absolute;
  top: 50%;
  left: -15%;
  width: 130%;
  height: 30px;
  transform: translateY(-50%);
  background: var(--roundel-bar);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
}

.ghp-roundel__bar span {
  color: #fff;
  font-family: Barlow, sans-serif;
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* —— Awards stripe —— */
.ghp-awards {
  background: var(--tube-bg);
  color: var(--tube-text);
  padding: 2rem 1rem;
}

.ghp-awards-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}

.ghp-avatar-ring {
  border-radius: 50%;
  border: 4px solid var(--roundel-ring);
  width: 100px;
  height: 100px;
  overflow: hidden;
  flex-shrink: 0;
  box-sizing: border-box;
}

.ghp-avatar-ring img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.ghp-awards-copy {
  text-align: left;
  max-width: 28rem;
}

.ghp-awards-copy p {
  margin: 0 0 0.35rem;
}

.ghp-awards-copy .ghp-muted {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #e5e7eb;
  margin-bottom: 0.5rem;
}

.ghp-flag-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 0.35rem;
  margin-top: 0.35rem;
}

.ghp-flag-row img {
  width: 24px;
  height: 16px;
  object-fit: cover;
  border-radius: 1px;
}

.ghp-made-qc {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

@media (min-width: 640px) {
  .ghp-made-qc {
    font-size: 0.875rem;
  }
}

/* —— Main column —— */
.ghp-main {
  flex: 1 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding-bottom: 1.5rem;
}

.ghp-stack {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .ghp-stack {
    padding: 0 1.5rem;
  }
}

.ghp-media-row {
  text-align: center;
  margin-top: 0.25rem;
}

.ghp-media-row > p {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #9ca3af;
}

.ghp-media-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.ghp-media-badges a {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  background: #111827;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.375rem;
  transition: background 0.15s;
}

.ghp-media-badges a:hover {
  background: #000;
}

.ghp-media-badges img {
  width: 100px;
  height: 40px;
  object-fit: contain;
}

.ghp-nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #d1d5db;
}

.ghp-nav-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  text-decoration: none;
  color: #e5e7eb;
  border-radius: var(--ghp-pill-radius);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(15, 23, 42, 0.55);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease,
    box-shadow 0.15s ease;
}

.ghp-nav-links a:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
  background: rgba(30, 41, 59, 0.85);
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.45);
}

/* —— Cards / sections —— */
.ghp-card {
  width: 100%;
  border-radius: 0.375rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.6);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
  padding: 1rem 1.25rem 1.25rem;
  scroll-margin-top: 6rem;
}

.ghp-card h3 {
  margin: 0 0 1rem;
  font-size: 1.75rem;
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.ghp-card h4 {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
  font-weight: 500;
}

.ghp-card .ghp-list {
  margin: 0;
  padding-left: 1.25rem;
  font-size: 1.1rem;
  line-height: 1.5;
}

.ghp-card .ghp-list li + li {
  margin-top: 0.5rem;
}

.ghp-link-cyan {
  color: #67e8f9;
}

.ghp-link-cyan:hover {
  text-decoration: underline;
}

.ghp-link-pink {
  color: #db2777;
}

.ghp-link-pink:hover {
  text-decoration: underline;
}

/* —— Atom tabs —— */
.ghp-tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.ghp-tab {
  cursor: pointer;
  padding: 0.5rem 1.1rem;
  border-radius: var(--ghp-pill-radius);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.ghp-tab:hover {
  border-color: rgba(255, 255, 255, 0.65);
  background: rgba(255, 255, 255, 0.1);
}

.ghp-tab[aria-pressed="true"] {
  background: #fff;
  color: #000;
  border-color: #fff;
  box-shadow: 0 2px 8px rgba(255, 255, 255, 0.12);
}

.ghp-panel {
  display: none;
}

.ghp-panel.is-open {
  display: block;
}

.ghp-subpanel-dark {
  background: #000;
  border-radius: 0.375rem;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}

.ghp-canvas-placeholder {
  min-height: 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 2rem 1rem;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 200;
  color: rgba(255, 255, 255, 0.85);
  border: 1px dashed rgba(255, 255, 255, 0.18);
  margin: 1rem;
  border-radius: 0.25rem;
}

.ghp-canvas-placeholder--tall {
  min-height: 400px;
}

.ghp-canvas-placeholder p {
  margin: 0;
  max-width: 20rem;
  font-size: 1rem;
  font-weight: 400;
  color: #9ca3af;
}

.ghp-live-site-cta {
  display: inline-block;
  margin-top: 0.25rem;
  padding: 0.45rem 1rem;
  border-radius: var(--ghp-pill-radius);
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: var(--roundel-bar);
  color: #fff !important;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}

.ghp-live-site-cta:hover {
  filter: brightness(1.08);
  border-color: rgba(255, 255, 255, 0.28);
}

.ghp-gray-band {
  background: #111827;
  padding: 1.5rem;
  text-align: center;
  color: #fff;
}

.ghp-btn-outline {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.5rem 1.05rem;
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: var(--ghp-pill-radius);
  color: #fff;
  text-decoration: none;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.ghp-btn-outline:hover {
  background: #fff;
  color: #000;
  border-color: #fff;
}

.ghp-btn-primary {
  display: inline-block;
  margin-top: 1rem;
  margin-right: 0.5rem;
  padding: 0.5rem 1.05rem;
  border-radius: var(--ghp-pill-radius);
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: #fff;
  color: #000;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.ghp-btn-primary:hover {
  background: #e5e7eb;
  border-color: #e5e7eb;
}

.ghp-btn-ghost {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.5rem 1.05rem;
  border-radius: var(--ghp-pill-radius);
  border: 1px solid rgba(255, 255, 255, 0.55);
  color: #fff;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.04);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.ghp-btn-ghost:hover {
  background: #fff;
  color: #000;
  border-color: #fff;
}

.ghp-code {
  font-family: ui-monospace, monospace;
  font-size: 0.95em;
}

.ghp-yt {
  display: block;
  margin: 1rem auto 0;
  max-width: 100%;
  border-radius: 0.5rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
  border: 0;
}

.ghp-caption {
  margin: 0.5rem 0 0;
  text-align: center;
  font-size: 0.875rem;
  font-style: italic;
  color: #d1d5db;
}

.ghp-photo-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.ghp-photo-block + .ghp-photo-block {
  margin-top: 2rem;
}

.ghp-photo-block img {
  max-width: 100%;
  height: auto;
  border-radius: 0.25rem;
}

.ghp-exp-block + .ghp-exp-block {
  margin-top: 1.5rem;
}

.ghp-edu-ol {
  margin: 0;
  padding-left: 1.25rem;
  font-size: 1.1rem;
  line-height: 1.45;
}

.ghp-edu-ol li + li {
  margin-top: 1.5rem;
}

.ghp-edu-ol .muted {
  color: #d1d5db;
}

.mark-gray::marker {
  color: #9ca3af;
}

.ghp-footer-note {
  text-align: center;
  padding: 1rem 1rem calc(4.5rem + env(safe-area-inset-bottom, 0px));
  font-size: 0.8rem;
  color: #6b7280;
}

.ghp-footer-note a {
  color: #9ca3af;
}

.ghp-footer-note a:hover {
  color: #fff;
}

.muted {
  color: #d1d5db;
}