/* =========================================================
   ANRS — Ain't No Rocket Science
   "Mission dossier": engineering paper + telemetry ribbon
   ========================================================= */

:root {
  --paper: #f4f6f8;
  --paper-2: #ffffff;
  --ink: #15171c;
  --red: #e63916;
  --red-dark: #b82a0f;
  --amber: #e8a200;
  --slate: #5b6470;
  --grid-minor: rgba(21, 23, 28, 0.04);
  --grid-medium: rgba(21, 23, 28, 0.07);
  --grid-major: rgba(21, 23, 28, 0.13);
  --grid-cross: rgba(21, 23, 28, 0.26);
  --line: #d8dce2;
  --card-bg: rgba(255, 255, 255, 0.55);
  --header-bg: rgba(244, 246, 248, 0.7);
  --link: var(--red-dark);
  --link-hover: var(--red);
  --muted-ink: #3a3f47;
  --ribbon-bg: #15171c;
  --ribbon-fg: #f4f6f8;
  --ribbon-muted: #5b6470;
  --avatar-bg: rgba(230, 57, 22, 0.08);

  --font-display: "Anton", "Arial Narrow", sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "Space Mono", "Courier New", monospace;

  --maxw: 1080px;
}

/* Dark mode = blueprint blue. Applied via [data-theme="dark"] on <html>.
   Matches the blue branch palette: brighter blueprint, not navy-black. */
:root[data-theme="dark"] {
  --paper: #123a4d;
  --paper-2: #eef2f4;
  --ink: #e6edf0;
  --red: #e63916;
  --red-dark: #b82a0f;
  --amber: #e8a200;
  --slate: #9fb3bd;
  --grid-minor: rgba(255, 255, 255, 0.04);
  --grid-medium: rgba(255, 255, 255, 0.08);
  --grid-major: rgba(255, 255, 255, 0.15);
  --grid-cross: rgba(255, 255, 255, 0.32);
  --line: rgba(255, 255, 255, 0.18);
  --card-bg: rgba(255, 255, 255, 0.04);
  --header-bg: rgba(18, 58, 77, 0.55);
  --link: #e6edf0;
  --link-hover: #e63916;
  --muted-ink: #c7d4db;
  --ribbon-bg: #07232f;
  --ribbon-fg: #eef2f4;
  --ribbon-muted: #b8c6cc;
  --avatar-bg: rgba(230, 57, 22, 0.12);
  color-scheme: dark;
}

:root[data-theme="light"] {
  color-scheme: light;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Engineering graph paper: 3 line weights + registration dots */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--grid-minor) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-minor) 1px, transparent 1px),
    linear-gradient(to right, var(--grid-medium) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-medium) 1px, transparent 1px),
    linear-gradient(to right, var(--grid-major) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-major) 1px, transparent 1px),
    radial-gradient(circle at 0 0, var(--grid-cross) 1.6px, transparent 2.2px);
  background-size:
    16px 16px,
    16px 16px,
    64px 64px,
    64px 64px,
    256px 256px,
    256px 256px,
    256px 256px;
  background-position: 0 0;
  pointer-events: none;
  z-index: 0;
}

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

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

::selection {
  background: var(--red);
  color: #ffffff;
}

/* ---------- Focus states ---------- */
a:focus-visible,
button:focus-visible,
.btn:focus-visible,
.nav-list a:focus-visible,
.social-list a:focus-visible {
  outline: 3px solid var(--red);
  outline-offset: 2px;
  text-decoration: none;
  border-radius: 1px;
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 200;
  background: var(--ink);
  color: var(--paper);
  padding: 0.75rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: top 0.15s;
}

.skip-link:focus {
  top: 0.75rem;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

.section {
  padding: 3rem 0;
  position: relative;
  z-index: 1;
  scroll-margin-top: 80px;
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section-head {
  margin-bottom: 2.5rem;
}

.section-kicker {
  display: inline-block;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.78rem;
  color: var(--slate);
  margin-bottom: 0.6rem;
}

.section-kicker::before {
  content: "// ";
  color: var(--red);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1px;
  line-height: 0.95;
  font-size: clamp(2.2rem, 6vw, 3.4rem);
}

.lead {
  font-size: 1.15rem;
  max-width: 56ch;
  color: var(--muted-ink);
}

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--ink);
}

.brand-logo {
  height: 44px;
  width: auto;
  object-fit: contain;
}

.nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-list a {
  display: inline-block;
  padding: 0.5rem 0.9rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.78rem;
  color: var(--ink);
  touch-action: manipulation;
}

.nav-list a:hover {
  color: var(--red);
  text-decoration: none;
}

.lang-switch {
  color: var(--red) !important;
}

/* Theme toggle button — sits in the nav, styled like the lang switch */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.9rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.78rem;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
  touch-action: manipulation;
}

.theme-toggle:hover {
  color: var(--red);
  border-color: var(--red);
}

.theme-toggle .icon {
  width: 14px;
  height: 14px;
  display: inline-block;
}

/* Sun icon shows by default and in light mode (click to go dark).
   Moon icon shows in dark mode (click to go light).
   Default to sun when data-theme is absent (progressive enhancement).
   Scoped under .theme-toggle to beat the .theme-toggle .icon display rule. */
.theme-toggle .icon-moon { display: none; }
.theme-toggle .icon-sun { display: inline-block; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: inline-block; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  margin: 0 auto;
  transition: 0.2s;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
  padding: 4rem 0 1.5rem;
  position: relative;
  z-index: 1;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

.hero-mark {
  width: 120px;
  height: auto;
  filter: drop-shadow(3px 3px 0 var(--red));
}

.hero-name {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: clamp(1.9rem, 8vw, 4.6rem);
  line-height: 0.95;
  letter-spacing: 1px;
  margin-bottom: 1.25rem;
  white-space: nowrap;
}

.hero-name .accent {
  color: var(--red);
}

.hero-tagline {
  font-size: clamp(1.1rem, 2.4vw, 1.3rem);
  font-weight: 500;
  max-width: 46ch;
  margin-bottom: 2.5rem;
  color: var(--muted-ink);
}

.hero-cta {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-block;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.82rem;
  padding: 0.85rem 1.5rem;
  border: 2px solid var(--ink);
  background: transparent;
  color: var(--ink);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  touch-action: manipulation;
}

.btn:hover {
  text-decoration: none;
  background: var(--ink);
  color: var(--paper);
}

.btn-primary {
  background: var(--red);
  color: var(--paper-2);
  border-color: var(--red);
}

.btn-primary:hover {
  background: var(--red-dark);
  border-color: var(--red-dark);
  color: var(--paper-2);
}

/* ---------- Telemetry ribbon (signature element) ---------- */
.telemetry {
  position: relative;
  z-index: 1;
  background: var(--ribbon-bg);
  color: var(--ribbon-fg);
  border-top: 1px solid var(--ribbon-bg);
  border-bottom: 1px solid var(--ribbon-bg);
  overflow: hidden;
}

.telemetry-track {
  display: flex;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 1px;
  padding: 0.7rem 0;
  gap: 2.5rem;
  width: max-content;
  animation: telemetry-scroll 32s linear infinite;
}

.telemetry-item {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-transform: uppercase;
}

.telemetry-item .lbl {
  color: var(--ribbon-muted);
}

.telemetry-item .val {
  color: var(--ribbon-fg);
}

.telemetry-item .val.live {
  color: var(--amber);
}

.telemetry-item .val.alert {
  color: var(--red);
}

.telemetry-item::after {
  content: "·";
  color: var(--ribbon-muted);
  margin-left: 2.5rem;
}

.telemetry-item:last-child::after {
  content: "";
}

@keyframes telemetry-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- Cards ---------- */
.card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  padding: 2rem;
  position: relative;
  backdrop-filter: blur(2px);
}

.card-title {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.card p + p {
  margin-top: 0.75rem;
}

/* ---------- About / crew ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.crew-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.crew-card {
  text-align: center;
  padding: 1.5rem 1rem;
  border: 1px solid var(--line);
  background: var(--card-bg);
}

.crew-avatar {
  width: 64px;
  height: 64px;
  margin: 0 auto 0.85rem;
  border-radius: 50%;
  background: var(--avatar-bg);
  border: 2px solid var(--red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--red);
}

.crew-name {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 1rem;
}

.crew-role {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--slate);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ---------- Music ---------- */
.music-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.stream-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2.5rem;
}

.stream-links .btn {
  font-size: 0.78rem;
  padding: 0.7rem 1.2rem;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.contact-grid .card {
  padding: 2.5rem;
}

.social-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.social-list a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--line);
  background: var(--card-bg);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  touch-action: manipulation;
}

.social-list a:hover {
  border-color: var(--red);
  background: var(--red);
  color: #ffffff;
  text-decoration: none;
}

.mailto-btn {
  display: inline-block;
  margin-top: 1.5rem;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ribbon-bg);
  color: var(--ribbon-fg);
  padding: 3rem 0;
  position: relative;
  z-index: 1;
}

.site-footer a {
  color: var(--ribbon-fg);
}

.site-footer a:hover {
  color: var(--red);
  text-decoration: none;
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer-links a {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.75rem;
}

.footer-social {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

.footer-social a {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.75rem;
}

.footer-copy {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  opacity: 0.5;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  margin-top: 2rem;
  padding-top: 1.5rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  .nav-toggle {
    display: flex;
  }

  .nav-list {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 0.5rem 1.5rem;
    gap: 0;
    display: none;
  }

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

  .nav-list li {
    width: 100%;
  }

  .nav-list a {
    display: block;
    width: 100%;
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line);
  }

  .nav-list li:last-child a {
    border-bottom: 0;
  }

  .hero {
    padding: 2.5rem 0 1.5rem;
  }

  .hero-mark {
    width: 90px;
  }
}

@media (min-width: 720px) {
  .hero-inner {
    grid-template-columns: auto 1fr;
    gap: 2.5rem;
  }

  .hero-mark {
    width: 130px;
  }

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

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

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    transition: none !important;
    animation: none !important;
  }
  .telemetry-track {
    animation: none;
  }
}
