/* ============================================================
   AITOLOGY — Design System
   The Intelligent Automation
   Shared tokens + components. Light + Dark via [data-theme].
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700;800&display=swap');

/* ============================================================
   THREE-COLOR SYSTEM
   1 · Cyan  (the signal)   2 · Ink (near-black navy)   3 · White
   All greys are tints of Ink. No gradients.
   ============================================================ */
:root{
  /* the only three brand colors */
  --brand: #00C4E4;          /* 1 · cyan signal */
  --ink-base: #0A1320;       /* 2 · ink navy   */
  --paper: #FFFFFF;          /* 3 · white      */

  --brand-strong: #0B8DAB;   /* cyan, darkened for text/links on white (same hue) */
  --brand-soft: rgba(0,196,228,.13);   /* cyan tint fill */
  --brand-soft-line: rgba(0,196,228,.30);

  /* legacy aliases kept so existing markup resolves to SOLID color (no gradient) */
  --brand-cyan: var(--brand);
  --brand-blue: var(--brand);
  --brand-action: var(--brand-strong);
  --brand-gradient: var(--brand);
  --brand-gradient-soft: var(--brand-soft);

  --font-display: 'Poppins', system-ui, sans-serif;
  --font-body: 'Poppins', system-ui, sans-serif;
  --font-mono: 'Poppins', system-ui, sans-serif;

  /* spacing scale (4px base) */
  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s5:24px; --s6:32px;
  --s7:48px; --s8:64px; --s9:96px; --s10:128px;

  /* radii — echo the squircle icon */
  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:22px; --r-2xl:32px; --r-pill:999px;

  --maxw: 1200px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- Light (default) ---------- */
:root, [data-theme="light"]{
  --bg:        #FAFBFD;
  --bg-tint:   #F2F6FC;
  --surface:   #FFFFFF;
  --surface-2: #F5F8FC;
  --surface-3: #ECF1F8;
  --border:    #E4EAF3;
  --border-strong: #D1DAE8;
  --ink:    #0A1120;
  --ink-2:  #515E78;
  --ink-3:  #8A97AD;
  --primary: var(--brand-strong);
  --primary-ink: #FFFFFF;
  --link: var(--brand-strong);
  --code-bg: #0C1322;
  --code-ink:#D7E2F2;
  --shadow-sm: 0 1px 2px rgba(12,22,44,.06), 0 1px 3px rgba(12,22,44,.05);
  --shadow-md: 0 4px 12px rgba(12,22,44,.07), 0 2px 6px rgba(12,22,44,.05);
  --shadow-lg: 0 18px 40px -12px rgba(13,30,66,.18), 0 6px 14px rgba(13,30,66,.08);
  --glow: 0 8px 30px -10px rgba(0,196,228,.45);
  --dot-grid: rgba(13,30,66,.05);
}

/* ---------- Dark ---------- */
[data-theme="dark"]{
  --bg:        #070A0F;
  --bg-tint:   #0A0E16;
  --surface:   #0E141D;
  --surface-2: #131B26;
  --surface-3: #1A2331;
  --border:    #1E2835;
  --border-strong: #2C3848;
  --ink:    #EAF1F8;
  --ink-2:  #9AA8BC;
  --ink-3:  #657085;
  --primary: var(--brand);
  --primary-ink: #04121A;
  --link: var(--brand);
  --code-bg: #0A0F18;
  --code-ink:#CFE0F2;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow-md: 0 6px 18px rgba(0,0,0,.45);
  --shadow-lg: 0 24px 60px -16px rgba(0,0,0,.7);
  --glow: 0 10px 40px -10px rgba(0,196,228,.30);
  --dot-grid: rgba(140,180,230,.06);
}

/* ============================================================
   BASE
   ============================================================ */
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  background:var(--bg);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  line-height:1.55;
  transition:background .4s var(--ease), color .4s var(--ease);
}
h1,h2,h3,h4,h5{font-family:var(--font-display);font-weight:600;line-height:1.08;margin:0;letter-spacing:-.02em;color:var(--ink);}
p{margin:0;}
a{color:var(--link);text-decoration:none;}
::selection{background:var(--brand-soft);color:var(--ink);}

.mono{font-family:var(--font-mono);}
.muted{color:var(--ink-2);}
.faint{color:var(--ink-3);}

/* brand-colored text (solid — no gradient) */
.grad-text{color:var(--brand-strong);-webkit-text-fill-color:var(--brand-strong);}
[data-theme="dark"] .grad-text{color:var(--brand);-webkit-text-fill-color:var(--brand);}

/* ============================================================
   LOGO
   ============================================================ */
.logo{display:inline-flex;align-items:center;gap:12px;font-family:var(--font-display);
  font-weight:600;letter-spacing:-.02em;color:var(--ink);user-select:none;}
.logo .mark{flex:0 0 auto;display:block;}
.logo [data-mark],.logo [data-mark-mono]{flex:0 0 auto;display:flex;align-items:center;line-height:0;}
.logo .wordmark{font-size:1.5rem;line-height:1;}
.logo .wordmark .ai{color:var(--brand);font-weight:700;}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-body);font-weight:600;font-size:.94rem;
  padding:11px 20px;border-radius:var(--r-pill);border:1px solid transparent;
  cursor:pointer;white-space:nowrap;transition:all .2s var(--ease);
  letter-spacing:-.01em;
}
.btn-primary{background:var(--primary);color:var(--primary-ink);box-shadow:var(--glow);}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.05);}
.btn-grad{background:var(--brand);color:#03121C;box-shadow:var(--glow);}
.btn-grad:hover{transform:translateY(-1px);filter:brightness(1.06);}
.btn-secondary{background:var(--surface);color:var(--ink);border-color:var(--border-strong);box-shadow:var(--shadow-sm);}
.btn-secondary:hover{border-color:var(--brand);color:var(--brand-strong);}
.btn-ghost{background:transparent;color:var(--ink-2);}
.btn-ghost:hover{background:var(--surface-2);color:var(--ink);}
.btn-lg{padding:15px 28px;font-size:1.02rem;}
.btn-sm{padding:8px 14px;font-size:.85rem;}

/* ============================================================
   BADGES / PILLS
   ============================================================ */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;font-weight:600;
  padding:5px 11px;border-radius:var(--r-pill);font-family:var(--font-body);letter-spacing:.01em;}
.badge-brand{background:var(--brand-soft);color:var(--brand-strong);border:1px solid var(--brand-soft-line);}
[data-theme="dark"] .badge-brand{color:var(--brand);}
.badge-soft{background:var(--surface-2);color:var(--ink-2);border:1px solid var(--border);}
/* status — expressed within the 3-color palette: cyan = positive, ink = neutral/critical */
.badge-success{background:var(--brand-soft);color:var(--brand-strong);}
[data-theme="dark"] .badge-success{color:var(--brand);}
.badge-warning{background:var(--surface-3);color:var(--ink-2);border:1px solid var(--border-strong);}
.badge-danger{background:var(--ink);color:var(--bg);}
.dot{width:7px;height:7px;border-radius:50%;background:currentColor;}

/* ============================================================
   CARDS / SURFACES
   ============================================================ */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);
  box-shadow:var(--shadow-sm);transition:all .25s var(--ease);}
.card-pad{padding:28px;}
.card-hover:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);border-color:var(--border-strong);}

/* ============================================================
   FORMS
   ============================================================ */
.field{display:flex;flex-direction:column;gap:7px;}
.label{font-size:.82rem;font-weight:600;color:var(--ink-2);}
.input{
  font-family:var(--font-body);font-size:.95rem;color:var(--ink);
  background:var(--surface);border:1px solid var(--border-strong);
  border-radius:var(--r-md);padding:11px 14px;width:100%;transition:all .18s var(--ease);
}
.input::placeholder{color:var(--ink-3);}
.input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-soft);}

/* ============================================================
   CODE
   ============================================================ */
.code{background:var(--code-bg);color:var(--code-ink);font-family:var(--font-mono);
  border-radius:var(--r-lg);padding:20px 22px;font-size:.86rem;line-height:1.7;overflow:auto;
  border:1px solid rgba(255,255,255,.06);}
.code .k{color:#7CE0FF;} .code .s{color:#9FE8B4;} .code .c{color:#5B6B86;}
.code .p{color:#C8B6FF;} .code .n{color:#FFD08A;}
code.inline{font-family:var(--font-mono);font-size:.86em;background:var(--surface-2);
  border:1px solid var(--border);border-radius:6px;padding:1px 7px;color:var(--brand-strong);}
[data-theme="dark"] code.inline{color:var(--brand);}

/* ============================================================
   LAYOUT HELPERS
   ============================================================ */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;}
.row{display:flex;align-items:center;}
.between{justify-content:space-between;}
.gap2{gap:8px;} .gap3{gap:12px;} .gap4{gap:16px;} .gap5{gap:24px;}
.grid{display:grid;}
.dotgrid{background-image:radial-gradient(var(--dot-grid) 1.2px, transparent 1.2px);background-size:24px 24px;}

/* theme toggle */
.theme-toggle{
  display:inline-flex;align-items:center;gap:7px;cursor:pointer;
  background:var(--surface-2);border:1px solid var(--border);border-radius:var(--r-pill);
  padding:6px 8px;color:var(--ink-2);transition:all .2s var(--ease);
}
.theme-toggle:hover{border-color:var(--border-strong);color:var(--ink);}