/* ═══════════════════════════════════════════
   STRAND_LABS — SHARED STYLESHEET
   Usato da: index.html, blog.html,
             tools/magic-match.html,
             blog-posts/*.html
   ═══════════════════════════════════════════ */

/* ─── CUSTOM PROPERTIES ─── */
:root {
  --bg-primary: #020b0f;
  --bg-secondary: #050f14;
  --bg-panel: rgba(0, 18, 26, 0.85);
  --chiral-cyan: #00d4c8;
  --chiral-cyan-dim: rgba(0, 212, 200, 0.15);
  --chiral-cyan-glow: rgba(0, 212, 200, 0.4);
  --accent-blue: #0a8fc4;
  --accent-orange: #e87d2a;
  --accent-orange-dim: rgba(232, 125, 42, 0.15);
  --text-primary: #c8e8ed;
  --text-secondary: #5a8a96;
  --text-dim: #2a4a54;
  --border-main: rgba(0, 212, 200, 0.25);
  --border-faint: rgba(0, 212, 200, 0.1);
  --font-hud: 'Share Tech Mono', monospace;
  --font-body: 'Rajdhani', sans-serif;
  --font-title: 'Orbitron', monospace;

  /* ─── TYPE SCALE ─── */
  --fs-body:    16px;  /* corpo standard */
  --fs-body-sm: 15px;  /* testi secondari, FAQ, excerpt, callout */
  --fs-body-xs: 14px;  /* floor assoluto per testo leggibile */
  --fs-hud:     11px;  /* nav links */
  --fs-hud-sm:  10px;  /* status bar, footer */
  --fs-hud-xs:   9px;  /* label decorativi, badge — solo HUD */
  --fs-code:    13px;  /* code block */
}

/* ─── RESET & BASE ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  cursor: crosshair;
}

/* ─── NOISE TEXTURE ─── */
@keyframes noise-anim {
  0%   { transform: translate(0,    0)    }
  10%  { transform: translate(-3%, -7%)   }
  20%  { transform: translate(-8%,  3%)   }
  30%  { transform: translate( 4%, -12%)  }
  40%  { transform: translate(-3%,  10%)  }
  50%  { transform: translate(-8%,  5%)   }
  60%  { transform: translate( 8%,  0%)   }
  70%  { transform: translate( 0%,  8%)   }
  80%  { transform: translate( 2%,  12%)  }
  90%  { transform: translate(-5%,  5%)   }
  100% { transform: translate( 3%,  3%)   }
}
body::after {
  content: '';
  position: fixed; top: -25%; left: -25%; width: 150%; height: 150%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.2'/%3E%3C/svg%3E");
  opacity: 0.2; pointer-events: none; z-index: 150;
  animation: noise-anim 0.22s steps(60) infinite;
}

/* ─── SCANLINES OVERLAY ─── */
@keyframes scanlines-anim {
  0%   { transform: translateY(0)   }
  100% { transform: translateY(4px) }
}
body::before {
  content: '';
  position: fixed; inset: 0;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.08) 2px, rgba(0,0,0,0.08) 4px);
  pointer-events: none; z-index: 149;
  animation: scanlines-anim 0.22s steps(60) infinite;
}


/* ─── CARD INTERFERENCE ─── */
@keyframes card-scan {
  0%   { transform: translate3d(0, -100%, 0); }
  100% { transform: translate3d(0, 500%, 0); }
}
@keyframes card-glitch {
  0%, 87%, 100% { transform: translate3d(0,    0, 0) skewX(0deg);    filter: none; }
  88%            { transform: translate3d(6px,  0, 0) skewX(-0.5deg); filter: hue-rotate(25deg) brightness(1.12); }
  89%            { transform: translate3d(-5px, 0, 0);                 filter: hue-rotate(-20deg) brightness(0.88); }
  90%            { transform: translate3d(3px,  0, 0) skewX(0.3deg);  filter: brightness(1.15); }
  91%            { transform: translate3d(0,    0, 0);                 filter: none; }
  95%            { transform: translate3d(-2px, 0, 0);                 filter: brightness(0.96); }
  97%            { transform: translate3d(0,    0, 0);                 filter: none; }
}

/* ─── CORNER BRACKETS ─── */
.corner-bracket { position: fixed; width: 40px; height: 40px; z-index: 100; }
.corner-bracket--tl { top: 16px; left: 16px; border-top: 1px solid var(--chiral-cyan); border-left: 1px solid var(--chiral-cyan); }
.corner-bracket--tr { top: 16px; right: 16px; border-top: 1px solid var(--chiral-cyan); border-right: 1px solid var(--chiral-cyan); }
.corner-bracket--bl { bottom: 16px; left: 16px; border-bottom: 1px solid var(--chiral-cyan); border-left: 1px solid var(--chiral-cyan); }
.corner-bracket--br { bottom: 16px; right: 16px; border-bottom: 1px solid var(--chiral-cyan); border-right: 1px solid var(--chiral-cyan); }

/* ─── STATUS BAR ─── */
.status-bar {
  position: fixed; top: 0; left: 0; right: 0; height: 32px;
  background: rgba(0, 18, 26, 0.9); border-bottom: 1px solid var(--border-faint);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 64px; z-index: 200;
  font-family: var(--font-hud); font-size: 10px; color: var(--text-secondary); letter-spacing: 0.1em;
}
.status-bar__left, .status-bar__right { display: flex; align-items: center; gap: 24px; }
.status-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--chiral-cyan); animation: pulse 2s infinite;
  display: inline-block; margin-right: 6px;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }
.status-online { color: var(--chiral-cyan); }

/* ─── NAV ─── */
nav {
  position: fixed; top: 32px; left: 0; right: 0; z-index: 200;
  padding: 12px 64px; display: flex; align-items: center; justify-content: space-between;
  background: linear-gradient(to bottom, rgba(2, 11, 15, 0.95), transparent);
}
.nav__logo {
  font-family: var(--font-title); font-size: 18px; font-weight: 700;
  color: var(--text-primary); letter-spacing: 0.2em; text-decoration: none;
  display: flex; align-items: center; gap: 10px;
}
.nav__logo-icon {
  width: 28px; height: 28px; border: 1px solid var(--chiral-cyan);
  transform: rotate(45deg); position: relative;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.nav__logo-icon::after { content: ''; width: 10px; height: 10px; background: var(--text-primary); }
.nav__links {
  display: flex; gap: 32px; list-style: none;
  font-family: var(--font-hud); font-size: 11px; letter-spacing: 0.15em;
  position: absolute; left: 50%; transform: translateX(-50%);
}
.nav__links a {
  color: var(--text-secondary); text-decoration: none;
  transition: color 0.2s; padding: 4px 0; position: relative;
}
.nav__links a::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 1px; background: var(--chiral-cyan); transform: scaleX(0); transition: transform 0.2s;
}
.nav__links a:hover, .nav__links a.active { color: var(--chiral-cyan); }
.nav__links a:hover::after, .nav__links a.active::after { transform: scaleX(1); }

/* ─── HAMBURGER ─── */
.nav__hamburger {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 36px; height: 36px; background: transparent; border: 1px solid var(--border-main);
  cursor: pointer; padding: 8px; flex-shrink: 0; transition: border-color 0.2s;
}
.nav__hamburger:hover { border-color: var(--chiral-cyan); }
.nav__hamburger span {
  display: block; width: 100%; height: 1px; background: var(--chiral-cyan);
  transition: transform 0.25s ease, opacity 0.25s ease; transform-origin: center;
}
.nav__hamburger.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav__hamburger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__hamburger.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ─── MOBILE MENU ─── */
.mobile-menu { display: none; position: fixed; inset: 0; z-index: 190; pointer-events: none; }
.mobile-menu.is-open { pointer-events: all; }
.mobile-menu__backdrop { position: absolute; inset: 0; background: rgba(2, 11, 15, 0.7); opacity: 0; transition: opacity 0.3s; }
.mobile-menu.is-open .mobile-menu__backdrop { opacity: 1; }
.mobile-menu__panel {
  position: absolute; top: 0; right: 0; width: 280px; height: 100%;
  background: var(--bg-secondary); border-left: 1px solid var(--border-main);
  transform: translateX(100%); transition: transform 0.3s;
  display: flex; flex-direction: column; padding-top: 80px;
}
.mobile-menu.is-open .mobile-menu__panel { transform: translateX(0); }
.mobile-menu__panel::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(to right, transparent, var(--chiral-cyan), transparent);
}
.mobile-menu__label { font-family: var(--font-hud); font-size: 9px; letter-spacing: 0.3em; color: var(--text-secondary); padding: 0 28px 20px; border-bottom: 1px solid var(--border-faint); }
.mobile-menu__links { list-style: none; display: flex; flex-direction: column; padding: 16px 0; }
.mobile-menu__links li { border-bottom: 1px solid var(--border-faint); }
.mobile-menu__links a { display: flex; align-items: center; gap: 14px; padding: 18px 28px; font-family: var(--font-hud); font-size: 12px; letter-spacing: 0.2em; color: var(--text-secondary); text-decoration: none; transition: color 0.2s, background 0.2s; }
.mobile-menu__links a::before { content: ''; display: block; width: 4px; height: 4px; border: 1px solid var(--chiral-cyan); transform: rotate(45deg); flex-shrink: 0; opacity: 0.5; transition: opacity 0.2s; }
.mobile-menu__links a:hover { color: var(--chiral-cyan); background: var(--chiral-cyan-dim); }
.mobile-menu__links a:hover::before { opacity: 1; }
.mobile-menu__hud { margin-top: auto; padding: 20px 28px; border-top: 1px solid var(--border-faint); font-family: var(--font-hud); font-size: 9px; color: var(--text-dim); letter-spacing: 0.15em; line-height: 1.8; }

/* ─── FOOTER ─── */
footer {
  padding: 40px 64px; border-top: 1px solid var(--border-faint);
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--font-hud); font-size: 10px; color: var(--text-dim);
  letter-spacing: 0.15em; background: var(--bg-secondary);
}
footer a { color: var(--text-secondary); text-decoration: none; transition: color 0.2s; }
footer a:hover { color: var(--chiral-cyan); }
.footer__links { display: flex; gap: 24px; }
.footer__links a { letter-spacing: 0.15em; }

/* ─── SEARCH TRIGGER & MODAL ─── */
.search-trigger {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-hud); font-size: 10px; letter-spacing: 0.15em;
  color: var(--text-secondary); background: transparent;
  border: 1px solid var(--border-faint); padding: 6px 12px;
  cursor: pointer; transition: border-color 0.2s, color 0.2s; flex-shrink: 0;
}
.search-trigger:hover { border-color: var(--border-main); color: var(--chiral-cyan); }
.search-trigger__icon { font-size: 12px; opacity: 0.7; }
.search-trigger__shortcut {
  font-family: var(--font-hud); font-size: 9px;
  border: 1px solid var(--border-faint); padding: 1px 5px;
  color: var(--text-dim); margin-left: 4px;
}
.search-overlay {
  display: none; position: fixed; inset: 0; z-index: 500;
  background: rgba(2, 11, 15, 0.85);
  align-items: flex-start; justify-content: center; padding-top: 80px;
}
.search-overlay.is-open { display: flex; }
.search-modal {
  width: 100%; max-width: 640px;
  background: var(--bg-secondary); border: 1px solid var(--border-main); position: relative;
}
.search-modal::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(to right, transparent, var(--chiral-cyan), transparent);
}
.search-modal__header {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 20px; border-bottom: 1px solid var(--border-faint);
}
.search-modal__icon { color: var(--chiral-cyan); font-size: 14px; flex-shrink: 0; }
.search-modal__input {
  flex: 1; background: transparent; border: none; outline: none;
  font-family: var(--font-body); font-size: 17px; font-weight: 500;
  color: var(--text-primary); letter-spacing: 0.02em; caret-color: var(--chiral-cyan);
}
.search-modal__input::placeholder { color: var(--text-dim); }
.search-modal__close {
  font-family: var(--font-hud); font-size: 9px; letter-spacing: 0.15em;
  color: var(--text-dim); background: transparent; border: 1px solid var(--border-faint);
  padding: 3px 8px; cursor: pointer; transition: color 0.2s; flex-shrink: 0;
}
.search-modal__close:hover { color: var(--chiral-cyan); }
.search-modal__results { max-height: 480px; overflow-y: auto; padding: 8px 0; }
.search-modal__results:empty::after {
  content: '// NO RESULTS';
  display: block; padding: 32px 20px;
  font-family: var(--font-hud); font-size: 10px; letter-spacing: 0.2em;
  color: var(--text-dim); text-align: center;
}
.search-modal__footer {
  padding: 10px 20px; border-top: 1px solid var(--border-faint);
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--font-hud); font-size: 9px; color: var(--text-dim); letter-spacing: 0.1em;
}
.search-modal__results .pagefind-ui__result {
  border: none; border-bottom: 1px solid var(--border-faint);
  padding: 16px 20px; display: block; text-decoration: none; transition: background 0.15s;
}
.search-modal__results .pagefind-ui__result:hover { background: rgba(0, 212, 200, 0.04); }
.search-modal__results .pagefind-ui__result-title {
  font-family: var(--font-body); font-size: 15px; font-weight: 600;
  color: var(--text-primary); margin-bottom: 4px; letter-spacing: 0.02em;
}
.search-modal__results .pagefind-ui__result-excerpt { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
.search-modal__results mark { background: transparent; color: var(--chiral-cyan); font-weight: 600; }
.search-modal__results .pagefind-ui__result-link {
  font-family: var(--font-hud); font-size: 9px; letter-spacing: 0.15em;
  color: var(--text-dim); display: block; margin-top: 4px;
}

/* ─── MOBILE SEARCH TRIGGER (off-canvas) ─── */
.mobile-search-trigger {
  width: 100%; background: transparent; border: none; cursor: pointer;
  display: flex; align-items: center; gap: 14px;
  padding: 18px 28px;
  font-family: var(--font-hud); font-size: 12px; letter-spacing: 0.2em;
  color: var(--chiral-cyan); transition: color 0.2s, background 0.2s;
  text-align: left;
}
.mobile-search-trigger::before {
  content: ''; display: block; width: 4px; height: 4px;
  border: 1px solid var(--chiral-cyan); transform: rotate(45deg); flex-shrink: 0;
}
.mobile-search-trigger:hover { background: var(--chiral-cyan-dim); }

/* ─── SHARED RESPONSIVE ─── */
@media (max-width: 900px) {
  .status-bar { padding: 0 20px; font-size: 10px; }
  .status-bar__right { display: none; }
  nav { padding: 8px 20px; }
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
  .mobile-menu { display: block; }
  .corner-bracket { display: none; }
  footer { flex-direction: column; gap: 16px; text-align: center; padding: 32px 20px; }
  .footer__links { flex-wrap: wrap; justify-content: center; }
  .search-trigger { display: none; }
  .search-overlay { padding-top: 64px; padding-left: 16px; padding-right: 16px; }
}