/* Base & Tokens */
:root{
  --bg: #0b1020;
  --bg-2: #0a1120;
  --text: #e9fbff;
  --muted: #9bd6e8;
  --accent: #00e0ff;
  --accent-2: #d4af37;
  --glass: rgba(12,24,48,0.22);
  --glass-fallback: rgba(12,24,48,0.60);
  --border: rgba(255,255,255,0.28);
  --card: rgba(12,24,48,0.28);
  --shadow: 0 8px 22px rgba(0,0,0,0.5);
  --radius: 14px;
}
*,
*::before,
*::after{ box-sizing: border-box; }
html, body{ height: 100%; }
html{ color-scheme: dark; }
body{
  margin:0;
  color: var(--text);
  background: linear-gradient(135deg, #05060e 0%, #0b1020 60%, #05040b 100%);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  line-height: 1.5;
  min-height: 100dvh;
  position: relative;
  isolation: isolate;
}
html, body { scroll-behavior: smooth; }

/* Layered background: gradient + subtle noise/scanline */
body::before{
  content:"";
  position: fixed; inset: 0;
  background: radial-gradient(circle at 20% 0%, rgba(0, 224, 255, 0.18), transparent 40%),
              radial-gradient(circle at 80% 20%, rgba(212, 175, 55, 0.18), transparent 40%);
  mix-blend-mode: screen;
  pointer-events: none;
  z-index: -2;
}
body::after{
  content:"";
  position: fixed; inset: 0;
  background-image: repeating-linear-gradient(to bottom, rgba(255,255,255,0.04) 0 1px, transparent 1px 2px);
  mix-blend-mode: overlay;
  opacity: 0.25;
  pointer-events: none;
  z-index: -1;
}

/* Layout helpers & sections (content structure) */
html, body, header, nav, main, article, aside, footer { box-sizing: border-box; }
header, main, footer { width: min(1120px, 100%); margin: 0 auto; }
header{ padding: 1.75rem 1rem; text-align: center; border-radius: 12px;
  background: rgba(6,12,28,0.42); border: 1px solid rgba(255,255,255,0.28);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow); position: relative; z-index: 1;
}
main{ padding: 1rem; position: relative; z-index: 1; }
article{ max-width: clamp(320px, 92vw, 900px); margin: 0 auto; padding: 0.25rem; }
aside{ padding: 0.5rem 1rem; }

/* Image framing (image-frame class optional) */
.image-frame{ width: 100%; aspect-ratio: 16/9; border-radius: 12px;
  overflow: hidden; border: 1px solid rgba(255,255,255,0.28);
  background: #000; box-shadow: 0 6px 18px rgba(0,0,0,0.5);
}
.image-frame img{ width: 100%; height: 100%; object-fit: cover; display: block; }

/* Scoped image styling if used directly */
.featured-image img{ width:100%; height:auto; display:block; border-radius:12px; border:1px solid rgba(255,255,255,0.28); }

/* Typography scales */
h1{ font-size: clamp(1.8rem, 2.5vw + 1rem, 3rem); margin: .25rem 0 0.25rem; color: var(--text); }
h2{ font-size: clamp(1.4rem, 1.2vw + 1rem, 2rem); margin: .75rem 0 0.25rem; color: var(--text); }
p{ font-size: clamp(1rem, 0.8vw + 0.8rem, 1.125rem); margin: .4rem 0 1rem; color: var(--text); line-height: 1.6; }

/* Blockquotes */
blockquote{ margin: .8rem 0; padding: .7rem 1rem; border-left: 4px solid var(--accent);
  background: rgba(0,0,0,0.18); border-radius: 6px; color: var(--text); }

/* Lists */
ul{ padding-left: 1.25em; margin: .4rem 0 1rem; }
li{ margin: .25rem 0; }

/* Utility, components & interactions */
.container{ max-width: clamp(320px, 92vw, 1100px); margin-inline: auto; padding-inline: 0.5rem; }
.grid{ display: grid; gap: 1rem; }
.grid.auto{ grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

/* Glass panels (fallback-ready) */
.glass{ background: var(--glass); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1rem;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
@supports not (backdrop-filter: blur(12px)) {
  .glass{ background: var(--glass-fallback); }
}
.card{ background: rgba(12,24,48,0.28); border: 1px solid rgba(255,255,255,0.28);
  border-radius: var(--radius); padding: 1rem; box-shadow: var(--shadow);
}
.tag{ display:inline-block; padding:.25em .6em; border-radius:999px;
  font-size:.75rem; background: rgba(0,224,255,.22); color: var(--text);
  border:1px solid rgba(0,224,255,.5); }

/* Links & buttons */
a, button, .btn, .cta{ transition: color .15s ease, background .15s ease, transform .15s ease; text-decoration: none; color: var(--accent); }
a{ color: var(--accent); }
a:hover, a:focus{ text-decoration: underline; outline: none; }
:focus-visible{ outline: 3px solid var(--accent-2); outline-offset: 2px; border-radius: 6px; }

/* Buttons (solid and outline variants) */
.btn{ display:inline-flex; align-items:center; justify-content:center;
  padding:.75rem 1.25rem; border-radius:999px; border:1px solid rgba(255,255,255,.28);
  background: var(--accent); color:#012029; font-weight:700; cursor:pointer;
  text-shadow: none; text-transform:none;
}
.btn:hover{ transform: translateY(-1px); background:#00d6ff; }
.btn:active{ transform: translateY(0); }
.btn--outline{ background: transparent; color: var(--text);
  border:1px solid rgba(0, 224, 255, .75); }
.cta{ /* extra class for calls-to-action if needed */ }

/* Form elements (basic styling) */
input, textarea, select{ width: 100%; padding:.5rem .75rem; border-radius:6px;
  border:1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.04);
  color: var(--text); outline: none;
}
input:focus-visible, textarea:focus-visible, select:focus-visible{ outline: 3px solid var(--accent); outline-offset: 2px; }

/* Footer layout */
footer{ padding: 1rem; display: grid; gap:.75rem; justify-items: center; text-align:center; }

/* Print styles */
@media print{
  body{ background: white; color: black; }
  a{ color: #000; text-decoration: underline; }
}

/* Accessibility: reduce motion */
@media (prefers-reduced-motion: reduce){
  *{ animation: none !important; transition: none !important; }
}

/* Dark mode fallback for light preference (legibility) */
@media (prefers-color-scheme: light){
  :root{
    --bg: #f7f9fc;
    --bg-2: #eef4fb;
    --text: #0b1220;
    --muted: #4b5a72;
    --accent: #005f7f;
    --accent-2: #b07a00;
    --glass: rgba(255,255,255,0.85);
    --glass-fallback: rgba(255,255,255,0.95);
    --border: rgba(0,0,0,0.08);
    --card: rgba(255,255,255,0.9);
  }
  body{ background: linear-gradient(#f6f9fc, #e9f0f9); color: var(--text); }
  header{ background: rgba(255,255,255,0.9); border:1px solid rgba(0,0,0,.08); }
  .glass{ background: rgba(255,255,255,0.85); }
}