/* ============================================================================
   Audenta landing — design system (light-first, theme-aware)
   Light by default; follows device theme automatically; manual toggle overrides.
   ============================================================================ */

/* ---- Tokens: light (default) ---- */
:root{
  --bg:#ffffff;
  --bg-soft:#f5f6f8;
  --surface:#ffffff;
  --surface-2:#f8f9fb;
  --text:#0c1017;
  --text-muted:#59617180;
  --text-muted:#5a6474;
  --border:#e8eaef;
  --border-strong:#d9dce3;
  --accent:#5b5bd6;
  --accent-ink:#4b45c6;
  --accent-soft:#eeeefc;
  --accent-contrast:#ffffff;
  --ok:#0e9f6e;
  --ring:rgba(91,91,214,.35);
  --shadow-sm:0 1px 2px rgba(16,24,40,.05);
  --shadow:0 1px 3px rgba(16,24,40,.06), 0 12px 28px -8px rgba(16,24,40,.10);
  --shadow-lg:0 24px 60px -20px rgba(16,24,40,.28);
  --grad:linear-gradient(135deg,#6d5bf0,#5b8bff);
  --radius:16px;
  --radius-sm:10px;
  --max:1120px;
  color-scheme:light;
}

/* ---- Tokens: dark (auto by device, unless forced light) ---- */
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0a0c11; --bg-soft:#0e1117; --surface:#12151c; --surface-2:#141821;
    --text:#eef1f7; --text-muted:#9aa3b4;
    --border:#222634; --border-strong:#2c3242;
    --accent:#8b8bff; --accent-ink:#a9a9ff; --accent-soft:#1a1d33; --accent-contrast:#0a0c11;
    --ok:#39d98a; --ring:rgba(139,139,255,.4);
    --shadow-sm:0 1px 2px rgba(0,0,0,.4);
    --shadow:0 1px 3px rgba(0,0,0,.4), 0 16px 40px -12px rgba(0,0,0,.6);
    --shadow-lg:0 30px 70px -20px rgba(0,0,0,.7);
    color-scheme:dark;
  }
}
/* ---- Manual override ---- */
:root[data-theme="dark"]{
  --bg:#0a0c11; --bg-soft:#0e1117; --surface:#12151c; --surface-2:#141821;
  --text:#eef1f7; --text-muted:#9aa3b4;
  --border:#222634; --border-strong:#2c3242;
  --accent:#8b8bff; --accent-ink:#a9a9ff; --accent-soft:#1a1d33; --accent-contrast:#0a0c11;
  --ok:#39d98a; --ring:rgba(139,139,255,.4);
  --shadow-sm:0 1px 2px rgba(0,0,0,.4);
  --shadow:0 1px 3px rgba(0,0,0,.4), 0 16px 40px -12px rgba(0,0,0,.6);
  --shadow-lg:0 30px 70px -20px rgba(0,0,0,.7);
  color-scheme:dark;
}

/* ---- Base ---- */
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,"Segoe UI",Roboto,Inter,system-ui,sans-serif;
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;
  transition:background .2s ease,color .2s ease;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}
.icon{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ---- Buttons ---- */
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:11px;padding:11px 18px;
  font-weight:600;font-size:15px;cursor:pointer;border:1px solid transparent;transition:.15s;white-space:nowrap}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-ghost{border-color:var(--border-strong);color:var(--text);background:var(--surface)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-lg{padding:14px 24px;font-size:16px;border-radius:12px}

/* ---- Section rhythm ---- */
section{padding:96px 0}
.kicker{display:inline-block;color:var(--accent);font-weight:700;font-size:13px;
  letter-spacing:.06em;text-transform:uppercase;margin-bottom:14px}
.title{font-size:clamp(28px,4vw,42px);line-height:1.12;letter-spacing:-.025em;margin:0 0 16px;font-weight:800}
.subtitle{color:var(--text-muted);font-size:19px;max-width:620px;margin:0}
.center{text-align:center}
.center .subtitle{margin-left:auto;margin-right:auto}

/* ---- Header ---- */
header{position:sticky;top:0;z-index:100;
  background:color-mix(in srgb,var(--bg) 82%,transparent);
  backdrop-filter:saturate(1.6) blur(12px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:20px;letter-spacing:-.03em}
.brand .mark{width:28px;height:28px;border-radius:8px;background:var(--grad);display:grid;place-items:center;color:#fff;box-shadow:var(--shadow-sm)}
.brand .mark svg{width:17px;height:17px;stroke:#fff;fill:none;stroke-width:2.2}
.nav-links{display:flex;gap:28px;font-size:15px;font-weight:500}
.nav-links a{color:var(--text-muted)}
.nav-links a:hover{color:var(--text)}
.nav-right{display:flex;align-items:center;gap:12px}
.theme-toggle{width:38px;height:38px;border-radius:10px;border:1px solid var(--border-strong);
  background:var(--surface);display:grid;place-items:center;cursor:pointer;color:var(--text-muted)}
.theme-toggle:hover{color:var(--accent);border-color:var(--accent)}
.theme-toggle .sun{display:none}
:root[data-theme="dark"] .theme-toggle .sun,
:root:not([data-theme="light"]) .theme-toggle .sun{display:block}
:root[data-theme="dark"] .theme-toggle .moon,
:root:not([data-theme="light"]) .theme-toggle .moon{display:none}
@media (prefers-color-scheme:light){:root:not([data-theme="dark"]) .theme-toggle .sun{display:none}:root:not([data-theme="dark"]) .theme-toggle .moon{display:block}}
@media(max-width:860px){.nav-links{display:none}.nav-right .login{display:none}}

/* ---- Hero ---- */
.hero{padding:84px 0 72px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(36px,5.4vw,58px);line-height:1.04;letter-spacing:-.035em;margin:18px 0 20px;font-weight:800}
.hero .subtitle{font-size:20px}
.hero-cta{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.hero-note{margin-top:18px;color:var(--text-muted);font-size:14px;display:flex;align-items:center;gap:8px}
.hero-note svg{width:16px;height:16px;stroke:var(--ok)}
.blob{position:absolute;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(109,91,240,.18),transparent 60%);
  top:-260px;right:-160px;pointer-events:none;filter:blur(4px)}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr;gap:40px}.hero-visual{order:2}}

/* ---- Product mock (hero visual) ---- */
.mock{background:var(--surface);border:1px solid var(--border);border-radius:18px;
  box-shadow:var(--shadow-lg);overflow:hidden}
.mock-bar{display:flex;align-items:center;gap:7px;padding:12px 14px;border-bottom:1px solid var(--border);background:var(--surface-2)}
.mock-bar i{width:10px;height:10px;border-radius:50%;background:var(--border-strong);display:block}
.mock-bar .addr{margin-left:10px;font-size:12px;color:var(--text-muted);
  background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:3px 10px}
.board{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;padding:14px}
.col h4{margin:0 0 8px;font-size:12px;color:var(--text-muted);font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.lead-card{background:var(--surface-2);border:1px solid var(--border);border-radius:10px;padding:10px;margin-bottom:8px}
.lead-card .row{display:flex;align-items:center;justify-content:space-between;gap:8px}
.lead-card .nm{font-size:13px;font-weight:600}
.lead-card .sub{font-size:11px;color:var(--text-muted);margin-top:3px}
.score{font-size:11px;font-weight:700;padding:2px 7px;border-radius:999px}
.score.a{background:rgba(14,159,110,.14);color:var(--ok)}
.score.b{background:var(--accent-soft);color:var(--accent-ink)}
.score.c{background:rgba(120,130,150,.16);color:var(--text-muted)}
.avatar{width:22px;height:22px;border-radius:50%;background:var(--grad);flex:0 0 auto}

/* ---- Trust strip ---- */
.strip{border-block:1px solid var(--border);background:var(--bg-soft)}
.strip .container{display:flex;gap:38px;flex-wrap:wrap;justify-content:center;padding:22px 24px;color:var(--text-muted);font-size:14px}
.strip b{color:var(--text)}

/* ---- Grid / cards ---- */
.grid{display:grid;gap:18px}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-2{grid-template-columns:repeat(2,1fr)}
@media(max-width:860px){.cols-3,.cols-2{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-sm);transition:.18s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-2px);border-color:var(--border-strong)}
.card .ficon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--accent-soft);color:var(--accent);margin-bottom:16px}
.card .ficon svg{width:22px;height:22px}
.card h3{margin:0 0 8px;font-size:18px;letter-spacing:-.01em}
.card p{margin:0;color:var(--text-muted);font-size:15px}

/* ---- Steps ---- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:s;position:relative}
@media(max-width:860px){.steps{grid-template-columns:1fr}}
.stepc{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm)}
.stepc .num{counter-increment:s;width:34px;height:34px;border-radius:9px;display:grid;place-items:center;
  font-weight:800;background:var(--grad);color:#fff;margin-bottom:14px}
.stepc .num::before{content:counter(s)}
.stepc h3{margin:0 0 8px;font-size:18px}
.stepc p{margin:0;color:var(--text-muted);font-size:15px}

/* ---- Case ---- */
.case{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:32px;box-shadow:var(--shadow)}
.kv{display:grid;grid-template-columns:190px 1fr;gap:14px 22px;font-size:15px}
.kv .k{color:var(--text-muted);font-weight:500}
.tag{display:inline-block;border:1px solid var(--border-strong);border-radius:8px;padding:4px 10px;margin:0 6px 6px 0;font-size:13px;color:var(--text-muted);background:var(--surface-2)}
@media(max-width:640px){.kv{grid-template-columns:1fr;gap:6px 0}.kv .k{margin-top:12px}}

/* ---- Principles ---- */
.principle{display:flex;gap:14px;align-items:flex-start}
.principle .chk{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:rgba(14,159,110,.14);
  color:var(--ok);display:grid;place-items:center}
.principle .chk svg{width:16px;height:16px;stroke:var(--ok);stroke-width:2.4}
.principle p{margin:0;color:var(--text-muted)}
.principle b{color:var(--text)}

/* ---- Pricing ---- */
.price{border:1px solid var(--border);border-radius:var(--radius);padding:28px;background:var(--surface);text-align:center;box-shadow:var(--shadow-sm)}
.price.feat{border-color:var(--accent);box-shadow:var(--shadow)}
.price h3{margin:0 0 4px;font-size:17px}
.price .amt{font-size:30px;font-weight:800;margin:10px 0;letter-spacing:-.02em}
.price p{margin:0;color:var(--text-muted);font-size:14px}

/* ---- FAQ ---- */
.faq details{border:1px solid var(--border);border-radius:12px;padding:0 20px;background:var(--surface);margin-bottom:12px;box-shadow:var(--shadow-sm)}
.faq summary{cursor:pointer;padding:18px 0;font-weight:600;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";width:20px;height:20px;flex:0 0 auto;
  background:no-repeat center/contain;transition:transform .2s;
  -webkit-mask:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 5v14M5 12h14" stroke="black" stroke-width="2" stroke-linecap="round"/></svg>') center/contain no-repeat;
  mask:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 5v14M5 12h14" stroke="black" stroke-width="2" stroke-linecap="round"/></svg>') center/contain no-repeat;
  background-color:var(--accent)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{margin:0 0 18px;color:var(--text-muted)}

/* ---- CTA ---- */
.cta{background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:44px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.cta .blob{top:-200px;left:-120px;right:auto}
.lead-form{display:grid;gap:12px;max-width:520px;margin-top:22px}
.lead-form input,.lead-form textarea{background:var(--bg);border:1px solid var(--border-strong);border-radius:11px;
  padding:13px 15px;color:var(--text);font:inherit;font-size:15px;transition:.15s}
.lead-form input:focus,.lead-form textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px var(--ring)}
.lead-form .note{font-size:13px;color:var(--text-muted)}
.form-ok{display:none;color:var(--ok);font-weight:600;background:rgba(14,159,110,.1);border-radius:10px;padding:12px 14px}

/* ---- Footer ---- */
footer{border-top:1px solid var(--border);padding:36px 0;color:var(--text-muted);font-size:14px;background:var(--bg-soft)}
.foot{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.foot a:hover{color:var(--accent)}