/* ===== D On Groups — Main Stylesheet ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --navy:#0b1e3d;--navy2:#112550;--navy3:#1a3266;
  --amber:#f5a623;--amber2:#ffc14d;
  --white:#ffffff;--off:#f4f6fb;
  --text:#1e2d4e;--muted:#5a6a8a;--border:#dce3f0;
  --success:#1d9e75;--danger:#dc3545;
  --font:'Noto Sans Thai','Sarabun',sans-serif;
  --radius:12px;--shadow:0 4px 24px rgba(11,30,61,.10);
}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);background:var(--white);line-height:1.7}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}

/* ── NAV ── */
nav{position:sticky;top:0;z-index:100;background:var(--navy);padding:0 5vw;
  display:flex;align-items:center;justify-content:space-between;height:64px;
  box-shadow:0 2px 16px rgba(0,0,0,.25)}
.nav-brand{font-size:1.25rem;font-weight:700;color:var(--white);letter-spacing:-.3px}
.nav-brand span{color:var(--amber)}
.nav-links{display:flex;gap:2rem;list-style:none}
.nav-links a{color:rgba(255,255,255,.8);font-size:.9rem;font-weight:500;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--amber)}
.nav-cta{background:var(--amber)!important;color:var(--navy)!important;
  padding:.45rem 1.2rem!important;border-radius:8px;font-weight:700!important;font-size:.88rem!important}
.nav-cta:hover{background:var(--amber2)!important}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
.hamburger span{width:24px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.mobile-menu{display:none;position:fixed;top:64px;left:0;right:0;
  background:#071429;
  flex-direction:column;padding:.5rem 0;gap:0;z-index:999;
  border-top:3px solid var(--amber);
  box-shadow:0 12px 40px rgba(0,0,0,.7)}
.mobile-menu a{color:#fff;padding:1rem 6vw;font-size:1rem;font-weight:500;
  border-bottom:1px solid rgba(255,255,255,.07);display:block;
  transition:background .15s,color .15s}
.mobile-menu a:hover,.mobile-menu a.active{background:rgba(245,166,35,.12);color:var(--amber)}
.mobile-menu a:last-child{border-bottom:none;background:var(--amber);
  color:var(--navy);font-weight:700;text-align:center;margin:1rem 6vw .75rem;
  border-radius:10px;border:none}
.mobile-menu a:last-child:hover{background:var(--amber2)}
.mobile-menu.open{display:flex}

/* ── BUTTONS ── */
.btn-primary{background:var(--amber);color:var(--navy);padding:.75rem 1.8rem;
  border-radius:var(--radius);font-weight:700;font-size:.95rem;
  display:inline-flex;align-items:center;gap:8px;transition:background .2s,transform .15s;border:none;cursor:pointer;font-family:var(--font)}
.btn-primary:hover{background:var(--amber2);transform:translateY(-2px)}
.btn-outline{border:1.5px solid rgba(255,255,255,.35);color:var(--white);padding:.75rem 1.8rem;
  border-radius:var(--radius);font-weight:600;font-size:.95rem;
  display:inline-flex;align-items:center;gap:8px;transition:border-color .2s,background .2s}
.btn-outline:hover{border-color:var(--amber);background:rgba(245,166,35,.08)}
.btn-navy{background:var(--navy);color:var(--white);padding:.75rem 1.8rem;
  border-radius:var(--radius);font-weight:700;font-size:.95rem;
  display:inline-flex;align-items:center;gap:8px;border:none;cursor:pointer;font-family:var(--font);transition:background .2s}
.btn-navy:hover{background:var(--navy3)}

/* ── SECTION BASE ── */
section{padding:72px 5vw}
.section-tag{display:inline-block;background:rgba(245,166,35,.12);color:#c47d00;
  border:1px solid rgba(245,166,35,.3);padding:.3rem .9rem;border-radius:99px;
  font-size:.78rem;font-weight:600;letter-spacing:.4px;margin-bottom:.9rem}
.section-title{font-size:clamp(1.4rem,3vw,2rem);font-weight:700;color:var(--navy);margin-bottom:.6rem}
.section-sub{color:var(--muted);font-size:.95rem;max-width:540px}
.text-center{text-align:center}
.text-center .section-sub{margin:0 auto}

/* ── PAGE HERO (inner pages) ── */
.page-hero{background:var(--navy);padding:56px 5vw;text-align:center}
.page-hero h1{font-size:clamp(1.6rem,4vw,2.4rem);font-weight:700;color:var(--white);margin-bottom:.75rem}
.page-hero h1 em{color:var(--amber);font-style:normal}
.page-hero p{color:rgba(255,255,255,.65);font-size:1rem;max-width:520px;margin:0 auto}
.breadcrumb{display:flex;justify-content:center;gap:.5rem;font-size:.8rem;
  color:rgba(255,255,255,.4);margin-bottom:1rem}
.breadcrumb a{color:rgba(255,255,255,.4)}
.breadcrumb a:hover{color:var(--amber)}
.breadcrumb span{color:var(--amber)}

/* ── STATS BAR ── */
.stats-bar{background:var(--amber);padding:1.25rem 5vw;
  display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.stat-item{text-align:center}
.stat-num{font-size:1.6rem;font-weight:700;color:var(--navy)}
.stat-label{font-size:.78rem;font-weight:500;color:rgba(11,30,61,.65)}

/* ── CARDS ── */
.cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem}
.card{background:var(--white);border:1px solid var(--border);border-radius:16px;
  padding:1.75rem;transition:box-shadow .25s,transform .25s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.card-icon{width:52px;height:52px;background:rgba(245,166,35,.12);border-radius:14px;
  display:flex;align-items:center;justify-content:center;margin-bottom:1.1rem;font-size:1.5rem}
.card h3{font-size:1rem;font-weight:700;color:var(--navy);margin-bottom:.5rem}
.card p{font-size:.88rem;color:var(--muted)}
.free-badge{display:inline-block;background:rgba(29,158,117,.1);color:#0a6a4a;
  border:1px solid rgba(29,158,117,.3);padding:.2rem .6rem;border-radius:6px;
  font-size:.73rem;font-weight:700;margin-top:.75rem}

/* ── FAQ ── */
.faq-list{max-width:720px;margin:2.5rem auto 0;display:flex;flex-direction:column;gap:1rem}
details{background:var(--off);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
summary{padding:1.1rem 1.4rem;cursor:pointer;font-weight:600;font-size:.95rem;color:var(--navy);
  list-style:none;display:flex;justify-content:space-between;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:'+';font-size:1.2rem;color:var(--amber);font-weight:700}
details[open] summary::after{content:'−'}
details .faq-ans{padding:0 1.4rem 1.2rem;font-size:.9rem;color:var(--muted)}

/* ── FOOTER ── */
footer{background:#070f1e;padding:2rem 5vw;display:flex;flex-wrap:wrap;gap:1rem;
  justify-content:space-between;align-items:center}
footer p{color:rgba(255,255,255,.4);font-size:.82rem}
.footer-links{display:flex;gap:1.5rem}
.footer-links a{color:rgba(255,255,255,.4);font-size:.82rem;transition:color .2s}
.footer-links a:hover{color:var(--amber)}

/* ── FAB ── */
.fab{position:fixed;bottom:1.5rem;right:1.5rem;z-index:200;
  display:flex;flex-direction:column;gap:.6rem;align-items:flex-end}
.fab-btn{display:flex;align-items:center;gap:.6rem;padding:.7rem 1.2rem;border-radius:99px;
  font-weight:700;font-size:.85rem;color:var(--white);transition:transform .2s;
  box-shadow:0 4px 20px rgba(0,0,0,.3)}
.fab-btn:hover{transform:scale(1.04)}
.fab-line{background:#06c755}
.fab-call{background:var(--navy);border:1.5px solid var(--amber);color:var(--amber)}

/* ── RESPONSIVE ── */
@media(max-width:820px){
  .nav-links{display:none}
  .hamburger{display:flex}
  .stats-bar{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){
  .stats-bar{padding:1rem 5vw}
  .stat-num{font-size:1.3rem}
  section{padding:56px 5vw}
}