/* =================================================================
   RunStat — สถิติวิ่งไทย  |  self-contained, zero-dependency
   ================================================================= */
:root{
  --ink:#0e1726; --ink-2:#1b2740; --muted:#5b6b85; --line:#e6eaf2;
  --bg:#ffffff; --bg-soft:#f5f7fb; --card:#ffffff;
  --accent:#ff5a1f; --accent-2:#ffb020; --accent-ink:#ff5a1f;
  --teal:#0fb9b1; --grad:linear-gradient(120deg,#ff5a1f 0%,#ff8a3d 45%,#ffb020 100%);
  --grad-cool:linear-gradient(120deg,#0fb9b1,#1f6feb);
  --radius:16px; --radius-lg:24px; --shadow:0 10px 40px rgba(14,23,38,.10);
  --shadow-sm:0 4px 16px rgba(14,23,38,.07);
  --maxw:1160px; --font:'Inter','Noto Sans Thai',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent-ink);background:rgba(255,90,31,.08);padding:6px 14px;border-radius:999px;margin-bottom:18px}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;font-weight:800}
.section-head{max-width:680px;margin:0 auto 56px;text-align:center}
.section-head h2{font-size:clamp(1.9rem,3.6vw,2.7rem)}
.section-head p{color:var(--muted);font-size:1.08rem;margin-top:14px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:700;font-size:1rem;
  padding:14px 26px;border-radius:999px;border:2px solid transparent;cursor:pointer;transition:.2s;white-space:nowrap}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 24px rgba(255,90,31,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(255,90,31,.45)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.25)}
.btn-ghost:hover{background:rgba(255,255,255,.16)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--ink-2);transform:translateY(-2px)}
.btn-sm{padding:10px 18px;font-size:.92rem}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line)}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.18rem;letter-spacing:-.02em}
.brand .mark{width:34px;height:34px;border-radius:9px;background:var(--grad);display:grid;place-items:center;color:#fff;flex:none}
.brand .mark svg{width:20px;height:20px}
.brand b{color:var(--accent-ink)}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{font-weight:600;font-size:.96rem;color:var(--ink-2);transition:.15s}
.nav-links a:hover{color:var(--accent-ink)}
.menu-toggle{display:none;background:none;border:0;flex-direction:column;gap:5px;cursor:pointer}
.menu-toggle span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.2s}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:88px 0 110px}
.hero::before{content:"";position:absolute;inset:0;
  background:radial-gradient(900px 500px at 78% -8%,rgba(255,90,31,.42),transparent 60%),
             radial-gradient(700px 500px at 8% 110%,rgba(15,185,177,.30),transparent 60%);}
.hero::after{content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:46px 46px;mask:linear-gradient(180deg,#000,transparent 85%)}
.hero .container{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero .eyebrow{color:#ffd9c7;background:rgba(255,90,31,.16)}
.hero h1{font-size:clamp(2.3rem,5vw,3.7rem);font-weight:800}
.hero h1 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{color:#b9c4d8;font-size:1.18rem;margin:22px 0 32px;max-width:540px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-note{margin-top:26px;color:#8b99b3;font-size:.9rem;display:flex;align-items:center;gap:8px}
.hero-note .dot{width:8px;height:8px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(15,185,177,.2)}

/* hero floating card */
.hero-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-lg);
  padding:26px;backdrop-filter:blur(6px);box-shadow:0 30px 70px rgba(0,0,0,.35)}
.hero-card .hc-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.hero-card .hc-top span{font-size:.8rem;color:#9fb0c9;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.hero-card .hc-top .pill{background:rgba(15,185,177,.16);color:#5fe6dd;padding:4px 10px;border-radius:999px;font-size:.72rem}
.rk{display:flex;align-items:center;gap:14px;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.07)}
.rk:last-child{border-bottom:0}
.rk .pos{width:26px;height:26px;border-radius:8px;display:grid;place-items:center;font-weight:800;font-size:.85rem;background:rgba(255,255,255,.08);flex:none}
.rk .pos.g1{background:var(--grad);color:#fff}
.rk .nm{flex:1;font-weight:600;font-size:.96rem;color:#eef2f8}
.rk .nm small{display:block;color:#8b99b3;font-weight:500;font-size:.76rem}
.rk .tm{font-variant-numeric:tabular-nums;font-weight:800;color:#fff}

/* ---------- counter band ---------- */
.counters{background:var(--ink-2);color:#fff;position:relative}
.counters .grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;padding:46px 0}
.cstat{text-align:center;position:relative}
.cstat:not(:last-child)::after{content:"";position:absolute;right:-10px;top:18%;height:64%;width:1px;background:rgba(255,255,255,.12)}
.cstat .num{font-size:clamp(1.8rem,3.3vw,2.7rem);font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.cstat .lbl{margin-top:6px;color:#aebbd0;font-size:.9rem;font-weight:600}

/* ---------- features ---------- */
.features{background:var(--bg-soft)}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:.2s}
.feat:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent}
.feat .ic{width:50px;height:50px;border-radius:13px;display:grid;place-items:center;margin-bottom:18px;
  background:rgba(255,90,31,.1);color:var(--accent-ink)}
.feat .ic svg{width:25px;height:25px}
.feat.cool .ic{background:rgba(15,185,177,.12);color:var(--teal)}
.feat h3{font-size:1.18rem;margin-bottom:9px}
.feat p{color:var(--muted);font-size:.97rem}

/* ---------- records ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.rec{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--card);transition:.2s}
.rec:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.rec .rh{background:var(--ink);color:#fff;padding:16px 20px;display:flex;align-items:center;justify-content:space-between}
.rec .rh .d{font-weight:800;font-size:1.25rem}
.rec .rh .t{font-size:.74rem;color:#9fb0c9;font-weight:700;letter-spacing:.08em}
.rec .rb{padding:18px 20px}
.rec .row{display:flex;align-items:center;gap:12px;padding:10px 0}
.rec .row+.row{border-top:1px solid var(--line)}
.rec .row .flag{font-size:1.3rem;flex:none}
.rec .row .info{flex:1;min-width:0}
.rec .row .info b{font-size:.95rem;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rec .row .info small{color:var(--muted);font-size:.76rem}
.rec .row .clk{font-variant-numeric:tabular-nums;font-weight:800;color:var(--accent-ink)}
.rec .row.thai .clk{color:var(--ink)}
.rec .tag{display:inline-block;font-size:.68rem;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:2px}

/* ---------- sources strip ---------- */
.sources{background:var(--ink);color:#fff;text-align:center}
.sources h2{font-size:clamp(1.7rem,3vw,2.3rem)}
.sources p{color:#aebbd0;max-width:620px;margin:14px auto 30px;font-size:1.05rem}
.chips{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:8px}
.chip{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:999px;
  padding:9px 18px;font-size:.9rem;font-weight:600;color:#dbe3ef}

/* ---------- CTA ---------- */
.cta{background:var(--grad);color:#fff;text-align:center}
.cta h2{font-size:clamp(1.9rem,3.4vw,2.6rem)}
.cta p{font-size:1.1rem;opacity:.95;margin:14px auto 30px;max-width:560px}

/* ---------- footer ---------- */
.footer{background:#0a111e;color:#8b99b3;padding:46px 0 30px}
.footer .top{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px;
  padding-bottom:26px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer .brand{color:#fff}.footer .brand b{color:var(--accent-2)}
.footer nav{display:flex;gap:24px;flex-wrap:wrap}
.footer nav a{font-size:.92rem}.footer nav a:hover{color:#fff}
.footer .bot{padding-top:22px;font-size:.85rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:.6s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- tiers ---------- */
.tiers{background:var(--bg-soft)}
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.tier{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:.2s}
.tier:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.tier .top{padding:22px 24px 18px;color:#fff;position:relative}
.tier.t1 .top{background:linear-gradient(120deg,#b8860b,#ffcf3f)}
.tier.t2 .top{background:linear-gradient(120deg,#0fb9b1,#1f8fe0)}
.tier.t3 .top{background:linear-gradient(120deg,#5b6b85,#8696b3)}
.tier .top .badge{font-size:.72rem;font-weight:800;letter-spacing:.12em;opacity:.9}
.tier .top h3{font-size:1.22rem;margin-top:4px;color:#fff}
.tier .top .std{font-size:.84rem;opacity:.92;margin-top:3px;font-weight:600}
.tier .body{padding:18px 24px 24px;flex:1;display:flex;flex-direction:column}
.tier .body p{color:var(--muted);font-size:.94rem;margin-bottom:14px}
.tier .ex{display:flex;flex-wrap:wrap;gap:7px;margin-top:auto}
.tier .ex span{font-size:.78rem;font-weight:600;color:var(--ink-2);background:var(--bg-soft);
  border:1px solid var(--line);border-radius:999px;padding:5px 11px}
.tier .ex span.star{background:rgba(255,90,31,.1);border-color:transparent;color:var(--accent-ink)}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .hero .container{grid-template-columns:1fr;gap:36px}
  .hero-visual{display:none}
  .counters .grid{grid-template-columns:repeat(3,1fr);gap:28px 12px}
  .cstat:nth-child(3)::after{display:none}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .rec-grid{grid-template-columns:repeat(2,1fr)}
  .tier-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  .section{padding:64px 0}
  .nav-links{display:none}
  .menu-toggle{display:flex}
  .nav-links.open{display:flex;position:absolute;top:68px;left:0;right:0;flex-direction:column;
    background:#fff;padding:18px 24px;gap:16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm)}
  .counters .grid{grid-template-columns:repeat(2,1fr)}
  .cstat::after{display:none!important}
  .feat-grid,.rec-grid{grid-template-columns:1fr}
  .hero-cta .btn{flex:1;justify-content:center}
}