/* ============================================================
   AQUARIUS HD — SHARED GLASS SYSTEM
   Ported verbatim from the homepage design guide:
   "above / below the waterline" frosted-glass model.
   Used by all three chart-view variations.
   ============================================================ */

:root{
  /* canvas / structure */
  --deep-space:#071827;
  --deep-ocean:#0D2433;
  --deep-charcoal:#101417;
  --border-subtle-dk:#183545;
  --border-strong-dk:#1E3A49;

  /* text ramp on dark */
  --clean-white:#F7FAFA;
  --mist-grey:#DDE7EA;
  --blue-grey:#9FB2BA;

  /* cyan accent family (the only chromatic accent) */
  --cyan:#37D5E8;
  --cyan-light:#4FDDED;
  --cyan-deep:#168FA2;
  --aqua-soft:#B9F4F8;

  /* bodygraph zone (locked, near-black instrument) */
  --bodygraph-bg:#0c0c0c;
  --activation-design:#FFFFFF;
  --activation-personality:#22D3EE;

  /* fonts */
  --font-display:"DM Sans",-apple-system,BlinkMacSystemFont,sans-serif;
  --font-body:"Space Grotesk",-apple-system,BlinkMacSystemFont,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,monospace;

  /* type scale */
  --fs-h2:clamp(28px,2.8vw,40px);
  --fs-h3:24px;--fs-body-lg:18px;--fs-body:16px;--fs-body-sm:14px;
  --fs-eyebrow:12px;--fs-meta:11px;

  --lh-tight:1.05;--lh-snug:1.18;--lh-normal:1.5;--lh-relaxed:1.65;
  --ls-head:-0.024em;--ls-eyebrow:0.22em;--ls-meta:0.16em;

  /* spacing — strict 8pt */
  --s-1:4px;--s-2:8px;--s-3:12px;--s-4:16px;--s-5:24px;
  --s-6:32px;--s-7:48px;--s-8:64px;--s-9:96px;

  /* radii */
  --r-xs:2px;--r-sm:4px;--r-md:12px;--r-lg:20px;--r-pill:999px;

  /* motion */
  --ease:cubic-bezier(0.22,1,0.36,1);
  --t-fast:160ms;--t-med:280ms;--t-slow:520ms;

  /* ---- GLASS RECIPES ---- */
  --glass-chrome-bg:rgba(247,250,250,0.06);
  --glass-chrome-border:rgba(247,250,250,0.10);
  --glass-chrome-blur:blur(14px) saturate(140%);

  --glass-above-bg:linear-gradient(180deg,rgba(247,250,250,0.10),rgba(185,244,248,0.04));
  --glass-above-border:rgba(247,250,250,0.16);
  --glass-above-blur:blur(18px) saturate(150%);
  --glass-above-shadow:0 24px 60px -20px rgba(0,0,0,0.55),inset 0 1px 0 rgba(255,255,255,0.10);

  --glass-below-bg:linear-gradient(180deg,rgba(13,36,51,0.55),rgba(7,24,39,0.7));
  --glass-below-border:rgba(159,178,186,0.18);
  --glass-below-blur:blur(12px) saturate(140%);
  --glass-below-shadow:inset 0 1px 0 rgba(255,255,255,0.04),0 12px 40px -20px rgba(0,0,0,0.4);

  --glass-accent-bg:linear-gradient(180deg,rgba(55,213,232,0.12),rgba(55,213,232,0.04));
  --glass-accent-border:rgba(55,213,232,0.28);
  --glass-accent-shadow:0 24px 60px -20px rgba(55,213,232,0.25),inset 0 1px 0 rgba(255,255,255,0.08);
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  background:var(--deep-space);
  color:var(--mist-grey);
  font-family:var(--font-body);
  font-size:var(--fs-body-sm);
  line-height:var(--lh-normal);
  -webkit-font-smoothing:antialiased;
  overflow:hidden;
}
::selection{background:rgba(55,213,232,0.28);color:var(--clean-white)}
button{font-family:inherit;color:inherit;cursor:pointer;border:none;background:none}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;letter-spacing:var(--ls-head);line-height:var(--lh-snug)}
em{font-style:normal;color:var(--cyan)}

/* ---- GLASS UTILITIES ---- */
.glass-chrome{
  background:var(--glass-chrome-bg);
  border:1px solid var(--glass-chrome-border);
  -webkit-backdrop-filter:var(--glass-chrome-blur);
  backdrop-filter:var(--glass-chrome-blur);
}
.glass-above{
  background:var(--glass-above-bg);
  border:1px solid var(--glass-above-border);
  -webkit-backdrop-filter:var(--glass-above-blur);
  backdrop-filter:var(--glass-above-blur);
  box-shadow:var(--glass-above-shadow);
}
.glass-below{
  background:var(--glass-below-bg);
  border:1px solid var(--glass-below-border);
  -webkit-backdrop-filter:var(--glass-below-blur);
  backdrop-filter:var(--glass-below-blur);
  box-shadow:var(--glass-below-shadow);
}
.glass-accent{
  background:var(--glass-accent-bg);
  border:1px solid var(--glass-accent-border);
  -webkit-backdrop-filter:var(--glass-above-blur);
  backdrop-filter:var(--glass-above-blur);
  box-shadow:var(--glass-accent-shadow);
}

/* ============================================================
   LAYERED BACKGROUND (what the glass frosts over)
   gradient + cyan blobs + 3px dot-noise + vignette
   ============================================================ */
.app-bg{position:fixed;inset:0;z-index:-3;isolation:isolate;overflow:hidden;
  background:
    radial-gradient(80% 50% at 75% 0%, #1b5970 0%, transparent 55%),
    radial-gradient(60% 70% at 5% 95%, #03121c 0%, transparent 60%),
    radial-gradient(120% 70% at 50% 30%, transparent 55%, rgba(2,10,20,0.55) 100%),
    linear-gradient(180deg, #0e3349 0%, #082134 38%, #051726 60%, #020e18 100%);
}
.app-bg::before{content:"";position:absolute;inset:-10%;z-index:-2;
  background:
    radial-gradient(22% 30% at 18% 24%, rgba(55,213,232,0.10), transparent 60%),
    radial-gradient(26% 34% at 82% 64%, rgba(185,244,248,0.08), transparent 62%),
    radial-gradient(20% 26% at 60% 12%, rgba(55,213,232,0.07), transparent 60%);
  filter:blur(20px);
}
.app-bg::after{content:"";position:absolute;inset:0;z-index:-1;
  background-image:radial-gradient(rgba(247,250,250,0.08) 1px, transparent 1px);
  background-size:3px 3px;opacity:0.18;mix-blend-mode:screen;pointer-events:none;
}

/* decorative hairline rule between zones */
.surface-line{height:1px;border:0;
  background:linear-gradient(90deg,transparent,rgba(185,244,248,0.35) 25%,rgba(185,244,248,0.45) 50%,rgba(185,244,248,0.35) 75%,transparent);
}

/* ============================================================
   BUTTONS (pills)
   ============================================================ */
.btn-primary{display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 18px;
  border-radius:var(--r-pill);background:var(--cyan);color:var(--deep-space);
  font-weight:600;font-size:13px;letter-spacing:0.02em;
  box-shadow:0 8px 22px -10px rgba(55,213,232,0.55);
  transition:transform var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease),background var(--t-fast) var(--ease)}
.btn-primary:hover{background:var(--cyan-light);transform:translateY(-1px);box-shadow:0 12px 28px -10px rgba(55,213,232,0.7)}
.btn-primary svg{width:15px;height:15px}
.btn-secondary{display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 16px;
  border-radius:var(--r-pill);color:var(--clean-white);font-size:13px;font-weight:500;
  transition:transform var(--t-fast) var(--ease),background var(--t-fast) var(--ease)}
.btn-secondary:hover{transform:translateY(-1px)}
.btn-secondary svg{width:15px;height:15px}
.btn-tertiary{color:var(--mist-grey);font-size:13px;transition:color var(--t-fast)}
.btn-tertiary:hover{color:var(--cyan)}

/* ============================================================
   BODYGRAPH (locked instrument) — interaction states
   ============================================================ */
#bodygraph{height:100%;max-height:100%;width:auto;max-width:100%}
#bodygraph svg{height:100%;max-height:660px;width:auto;max-width:100%;display:block}
#bodygraph text{font-family:var(--font-body)!important}
#bodygraph svg .dimmed{opacity:0.92;transition:opacity .18s}
#bodygraph svg [data-piece]{transition:opacity .18s,filter .18s}
#bodygraph svg .focus-glow{filter:brightness(1.12)}
#bodygraph svg [data-center]{cursor:pointer}
#bodygraph svg [data-gate]{cursor:pointer}

/* ============================================================
   FLOATING TOOLTIP — submerged glass
   ============================================================ */
.tip{position:absolute;z-index:40;pointer-events:none;
  background:linear-gradient(180deg,rgba(13,36,51,0.78),rgba(7,24,39,0.88));
  border:1px solid rgba(159,178,186,0.22);border-radius:11px;padding:9px 12px;
  -webkit-backdrop-filter:blur(16px) saturate(150%);backdrop-filter:blur(16px) saturate(150%);
  font-size:11.5px;opacity:0;transform:translateY(4px);transition:.12s var(--ease);max-width:210px;
  box-shadow:0 14px 38px -14px rgba(0,0,0,0.7),inset 0 1px 0 rgba(255,255,255,0.06)}
.tip.show{opacity:1;transform:translateY(0)}
.tip .t-name{font-family:var(--font-display);font-weight:600;font-size:12.5px;color:var(--clean-white);margin-bottom:2px}
.tip .t-sub{color:var(--blue-grey);font-size:10.5px}
.tip .t-act{display:flex;gap:8px;margin-top:6px}
.tip .t-act span{display:inline-flex;align-items:center;gap:4px;font-size:10px;color:var(--mist-grey)}
.tip .t-act i{width:8px;height:8px;border-radius:2px;display:inline-block}

/* ============================================================
   SCROLLBARS
   ============================================================ */
.scroll{scrollbar-width:thin;scrollbar-color:rgba(159,178,186,0.3) transparent}
.scroll::-webkit-scrollbar{width:9px;height:9px}
.scroll::-webkit-scrollbar-thumb{background:rgba(159,178,186,0.26);border-radius:20px;border:2px solid transparent;background-clip:padding-box}
.scroll::-webkit-scrollbar-thumb:hover{background:rgba(159,178,186,0.42);background-clip:padding-box}

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