/* ============================================================
   SmartERP-Flow — shared design system
   "the extraction instrument": navy instrument console with an
   amber readout signal and mono data. Dark + light themes.
   ============================================================ */

:root {
  /* --- dark (default) --- */
  --ground:      #0E1726;
  --panel:       #131F33;
  --panel-2:     #182742;
  --raise:       #1E3052;
  --text:        #E8ECF3;
  --muted:       #8A97AD;
  --faint:       #5A687F;
  --line:        rgba(232,236,243,0.10);
  --line-strong: rgba(232,236,243,0.18);
  --accent:      #F2A93B;        /* amber readout / signal */
  --accent-dim:  #B97F2C;
  --accent-text: #F2A93B;        /* amber used as text */
  --on-accent:   #1A1206;        /* text on amber fills */
  --confirm:     #4FD0A6;        /* mint — confirmed value */
  --danger:      #F2705B;
  --grid:        rgba(232,236,243,0.022);
  --shadow:      0 18px 50px -20px rgba(0,0,0,0.6);
  --glow:        rgba(242,169,59,0.45);

  --r:    10px;
  --r-sm: 7px;
  --maxw: 1320px;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --disp: "Space Grotesk", var(--sans);
}

:root[data-theme="light"] {
  --ground:      #F1F5FA;
  --panel:       #FFFFFF;
  --panel-2:     #EAF0F7;
  --raise:       #DEE7F1;
  --text:        #16263F;
  --muted:       #5C6E86;
  --faint:       #98A6B8;
  --line:        rgba(22,38,63,0.10);
  --line-strong: rgba(22,38,63,0.16);
  --accent:      #DD8C23;
  --accent-dim:  #B97F2C;
  --accent-text: #9A6712;
  --on-accent:   #271804;
  --confirm:     #1C9C76;
  --danger:      #CF4B36;
  --grid:        rgba(22,38,63,0.030);
  --shadow:      0 16px 44px -22px rgba(22,38,63,0.30);
  --glow:        rgba(221,140,35,0.40);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 46px 46px;
  background-position: -1px -1px;
  transition: background-color 0.25s, color 0.25s;
}
a { color: var(--accent-text); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { font-family: var(--disp); font-weight: 600; letter-spacing: -0.01em; margin: 0; }
img { max-width: 100%; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--ground) 82%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner { display: flex; align-items: center; gap: 16px; height: 60px; }
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-mark { width: 26px; height: 26px; flex: 0 0 auto; display: grid; place-items: center; }
.brand-name { font-family: var(--disp); font-weight: 700; font-size: 17px; letter-spacing: -0.02em; }
.brand-name .flow { color: var(--accent-text); }
.brand-by { color: var(--muted); font-size: 12.5px; margin-left: 2px; }
.brand-by b { color: var(--text); font-weight: 600; }

.nav { display: flex; align-items: center; gap: 4px; margin-left: 10px; }
.nav a {
  color: var(--muted); font-size: 13.5px; font-weight: 500; padding: 7px 12px; border-radius: var(--r-sm);
}
.nav a:hover { color: var(--text); text-decoration: none; background: var(--panel-2); }
.nav a.active { color: var(--text); }
@media (max-width: 680px) { .nav { display: none; } }

.topbar-spacer { flex: 1 1 auto; }
.topbar-tools { display: flex; align-items: center; gap: 9px; }

/* status pill */
.status-pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 12px; color: var(--muted);
  border: 1px solid var(--line); border-radius: 100px;
  padding: 6px 12px 6px 11px; background: var(--panel);
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); flex: 0 0 auto; }
.dot.ok { background: var(--confirm); box-shadow: 0 0 0 3px color-mix(in srgb, var(--confirm) 22%, transparent); }
.dot.bad { background: var(--danger); box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger) 22%, transparent); }
.status-pill .engine { color: var(--text); }
@media (max-width: 560px) { .status-pill { display: none; } }

/* language + theme controls */
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  background: var(--panel); border: 1px solid var(--line-strong); color: var(--muted);
  border-radius: var(--r-sm); height: 34px; padding: 0 11px; cursor: pointer;
  font-family: var(--mono); font-size: 12px; transition: color 0.15s, border-color 0.15s;
}
.icon-btn:hover { color: var(--accent-text); border-color: var(--accent-dim); }
.lang-switch { position: relative; }
.lang-switch select {
  appearance: none; background: var(--panel); border: 1px solid var(--line-strong); color: var(--text);
  border-radius: var(--r-sm); height: 34px; padding: 0 28px 0 11px; cursor: pointer;
  font-family: var(--mono); font-size: 12px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path d='M2 4l4 4 4-4' stroke='%238A97AD' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat; background-position: right 9px center;
}
.lang-switch select:focus { outline: none; border-color: var(--accent); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: var(--disp); font-weight: 600; font-size: 14.5px; letter-spacing: 0.01em;
  border-radius: var(--r-sm); padding: 12px 20px; cursor: pointer; border: 1px solid transparent;
  transition: filter 0.15s, transform 0.05s, background 0.15s, color 0.15s, border-color 0.15s;
}
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { filter: brightness(1.07); text-decoration: none; }
.btn-primary:active { transform: translateY(1px); }
.btn-outline { background: transparent; border-color: var(--line-strong); color: var(--text); }
.btn-outline:hover { border-color: var(--accent-dim); color: var(--accent-text); text-decoration: none; }

/* ---------- panels ---------- */
.panel {
  background: var(--panel);
  border: 1px solid var(--line); border-radius: var(--r);
}
.panel-head { display: flex; align-items: center; gap: 10px; padding: 15px 18px; border-bottom: 1px solid var(--line); }
.panel-head .ix { font-family: var(--mono); font-size: 12px; color: var(--accent-text); border: 1px solid var(--line-strong); border-radius: 5px; padding: 2px 7px; }
.panel-head h2 { font-size: 15px; font-weight: 600; letter-spacing: 0; }
.panel-head .sub { color: var(--muted); font-size: 12.5px; margin-left: auto; font-family: var(--mono); }
.panel-body { padding: 18px; }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--line); padding: 30px 0 44px; color: var(--muted); font-size: 13px; margin-top: 40px; }
.foot-grid { display: flex; align-items: flex-start; gap: 28px; flex-wrap: wrap; }
.foot-brand { max-width: 320px; }
.foot-brand .tagline { font-family: var(--mono); font-size: 12px; letter-spacing: 0.04em; color: var(--accent-text); margin-top: 8px; }
.foot-col h4 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); font-family: var(--mono); font-weight: 500; margin-bottom: 10px; }
.foot-col a { display: block; color: var(--text); margin-bottom: 7px; font-size: 13.5px; }
.foot-col a:hover { color: var(--accent-text); }
.foot-spacer { flex: 1 1 auto; }
.foot-legal { width: 100%; margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; gap: 14px; flex-wrap: wrap; align-items: center; color: var(--faint); font-size: 12px; }
.foot-legal .ver { margin-left: auto; font-family: var(--mono); }

/* ---------- toast ---------- */
.toast {
  position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--raise); border: 1px solid var(--line-strong); color: var(--text);
  padding: 11px 18px; border-radius: 100px; font-size: 13px; font-family: var(--mono);
  opacity: 0; pointer-events: none; transition: opacity 0.2s, transform 0.2s; z-index: 80; box-shadow: var(--shadow);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* shared eyebrow */
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent-text); }

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
}