:root{
  --navy:#0a2e5c; --navy-2:#0b3a72; --navy-3:#0f4b93; --deep:#061a38;
  --cyan:#29c7ff; --cyan-2:#8fe3ff; --sky:#cdeaff;
  --white:#ffffff; --muted:#b8d4f0; --muted-2:#8fb0d4;
  --radius:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Prompt','Noto Sans Thai',system-ui,sans-serif;background:var(--deep);color:var(--white);line-height:1.7}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
.section{padding:76px 0}

/* generic heading style — bold uppercase, cyan accent words */
.kicker{color:var(--cyan);font-weight:700;letter-spacing:2px;text-transform:uppercase;font-size:.82rem;display:block;margin-bottom:8px}
.title{font-size:clamp(1.7rem,4vw,2.7rem);font-weight:700;text-transform:uppercase;line-height:1.2;margin-bottom:14px}
.title .cyan{color:var(--cyan)}
.lead-sub{color:var(--muted);max-width:720px}
.center{text-align:center}
.center .lead-sub{margin:0 auto}

/* ===== NAV ===== */
.navbar{position:sticky;top:0;z-index:50;background:rgba(6,26,56,.85);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{font-weight:700;font-size:1.3rem;text-decoration:none;color:var(--white);letter-spacing:1px}
.logo span{color:var(--cyan)}
.nav-links{display:flex;gap:20px}
.nav-links a{text-decoration:none;color:var(--muted);font-weight:500;font-size:.95rem;text-transform:uppercase;letter-spacing:.5px}
.nav-links a:hover{color:var(--cyan)}
.hamburger{display:none;background:none;border:1px solid rgba(255,255,255,.2);border-radius:10px;color:#fff;font-size:1.2rem;padding:6px 12px;cursor:pointer}

/* ===== HERO ===== */
.hero{position:relative;overflow:hidden;background:radial-gradient(120% 120% at 50% 0%,#0f4b93 0%,#0a2e5c 45%,#061a38 100%);padding:96px 0 90px}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(60% 50% at 70% 20%,rgba(41,199,255,.18),transparent 60%);pointer-events:none}
.hero .container{position:relative;text-align:center}
.hero h1{font-size:clamp(2.4rem,6vw,4.2rem);font-weight:700;line-height:1.1;text-transform:uppercase;letter-spacing:1px;margin:14px 0}
.hero h1 .cyan{color:var(--cyan)}
.hero .lead-sub{font-size:1.15rem;margin:0 auto 30px}
.btn{display:inline-block;padding:14px 30px;border-radius:999px;text-decoration:none;font-weight:700;text-transform:uppercase;letter-spacing:.5px;border:1px solid transparent;cursor:pointer;font-family:inherit;font-size:.95rem}
.btn-cyan{background:var(--cyan);color:#05234a}
.btn-cyan:hover{background:var(--cyan-2)}
.btn-outline{border-color:var(--cyan);color:var(--cyan);background:transparent}
.btn-outline:hover{background:rgba(41,199,255,.15)}
.hero-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* sport fact strip */
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:54px}
.stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:22px 16px;backdrop-filter:blur(4px)}
.stat b{display:block;font-size:1.7rem;color:var(--cyan);font-weight:700}
.stat span{color:var(--muted);font-size:.9rem}

/* ===== CARDS / GRIDS ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.card{background:var(--navy-2);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:26px;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(0,0,0,.35)}
.card-icon{font-size:2.2rem;margin-bottom:10px}
.card h3{color:var(--white);margin-bottom:8px}
.card p{color:var(--muted);font-size:.95rem}
.tag{display:inline-block;margin-top:12px;background:rgba(41,199,255,.15);color:var(--cyan);font-size:.78rem;padding:4px 14px;border-radius:999px;font-weight:600;border:1px solid rgba(41,199,255,.35)}

/* ===== PILLARS ===== */
.section-alt{background:var(--navy-2)}
.pillar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:30px}
.pillar{background:var(--deep);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:24px;border-top:4px solid var(--cyan)}
.pillar-top{font-weight:700;color:var(--cyan);margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px}
.pillar h3{color:var(--white);font-size:1.05rem;margin-bottom:8px}
.pillar p{color:var(--muted);font-size:.92rem}
.pillar ul{margin:12px 0 0 18px;color:var(--muted-2);font-size:.9rem}

/* ===== DARK FEATURE BAND ===== */
.band{background:linear-gradient(135deg,#0f4b93,#0a2e5c);padding:76px 0}
.band h2{margin-bottom:8px}
.band .lead-sub{color:var(--muted);margin-bottom:34px}
.feature-icons{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feat{background:rgba(6,26,56,.5);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:26px;text-align:center}
.feat .icon{font-size:2.4rem}
.feat h4{color:var(--white);margin:10px 0 4px;text-transform:uppercase;letter-spacing:.5px;font-size:1rem}
.feat p{color:var(--muted-2);font-size:.88rem}

/* ===== LIGHT SECTIONS ===== */
.light{background:#eef4fb;color:#05234a}
.light .title{color:#05234a}
.light .lead-sub{color:#3d5a7d}
.light .card{background:#fff;border:1px solid #d7e4f2;box-shadow:0 6px 20px rgba(5,35,74,.05)}
.light .card h3{color:#05234a}
.light .card p{color:#3d5a7d}
.light .tag{background:rgba(41,199,255,.15);color:#0284c7;border-color:rgba(41,199,255,.4)}
.light .pillar{background:#fff;border:1px solid #d7e4f2;border-top:4px solid var(--cyan)}
.light .pillar p{color:#3d5a7d}
.light .pillar ul{color:#5b6b82}

/* ===== TOOLS ===== */
.tabs{display:flex;gap:10px;margin:24px 0;flex-wrap:wrap}
.tab{padding:11px 24px;border-radius:999px;border:1px solid rgba(255,255,255,.2);background:transparent;color:var(--white);cursor:pointer;font-family:inherit;font-weight:600;text-transform:uppercase;letter-spacing:.5px}
.tab.active{background:var(--cyan);color:#05234a;border-color:var(--cyan)}
.tool-panel{display:none;background:var(--navy-2);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:28px}
.tool-panel.active{display:block}
.form-card label{display:block;margin-bottom:12px;font-weight:500;font-size:.92rem;color:var(--muted)}
.form-card input,.form-card select{width:100%;padding:11px 12px;margin-top:6px;border:1px solid rgba(255,255,255,.2);border-radius:10px;background:rgba(6,26,56,.5);color:#fff;font-family:inherit;font-size:1rem}
.form-card input:focus,.form-card select:focus{outline:none;border-color:var(--cyan)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.result-card{background:rgba(6,26,56,.5);border:1px dashed rgba(41,199,255,.5);border-radius:12px;padding:20px}
.result-card h3{color:var(--cyan);text-transform:uppercase;letter-spacing:.5px;margin-bottom:14px;font-size:1rem}
.result-num{display:flex;justify-content:space-between;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:12px 16px;margin-bottom:10px;color:var(--muted)}
.result-num.highlight{border-color:var(--cyan);background:rgba(41,199,255,.1)}
.result-num b{color:var(--cyan)}
.hint{color:var(--muted-2);font-size:.85rem;margin-top:10px}
.zones{display:grid;gap:8px}
.zone{display:flex;justify-content:space-between;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:8px 14px;font-size:.9rem;color:var(--muted)}
.zone b{color:var(--cyan)}
.tool-panel .form-card h3{color:#fff;margin-bottom:14px;text-transform:uppercase;letter-spacing:.5px;font-size:1rem}

/* ===== REVIEWS (band) ===== */
.reviews{background:linear-gradient(135deg,#0a2e5c,#0f4b93);padding:76px 0}
.reviews .lead-sub{color:var(--muted);margin-bottom:34px}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review{background:rgba(6,26,56,.45);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:24px}
.stars{color:var(--cyan);letter-spacing:2px;margin-bottom:10px}
.review p{color:var(--muted);font-size:.92rem;font-style:italic}
.review .who{color:var(--cyan-2);font-size:.82rem;margin-top:10px;display:block}

/* ===== ICON ROW ===== */
.icon-row{display:flex;justify-content:center;gap:34px;flex-wrap:wrap;margin-top:36px}
.icon-row .ic{font-size:2.6rem;color:#05234a;opacity:.85}

/* ===== NEWSLETTER BAR ===== */
.newsletter{background:linear-gradient(90deg,#0f4b93,#0a2e5c);border-top:1px solid rgba(255,255,255,.1);border-bottom:1px solid rgba(255,255,255,.1);padding:44px 0}
.news-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.news-inner h3{text-transform:uppercase;color:var(--white);font-size:1.4rem}
.news-form{display:flex;gap:10px;flex-wrap:wrap}
.news-form input{width:280px;padding:13px 16px;border:none;border-radius:999px;font-family:inherit;font-size:.95rem}
.news-form .btn{padding:13px 28px}

/* ===== FOOTER ===== */
footer{background:var(--deep);padding:56px 0 24px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
.foot-grid b{color:#fff;display:block;margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px}
.foot-grid p{color:var(--muted-2);font-size:.9rem}
.foot-grid a{color:var(--cyan);text-decoration:none;font-size:.9rem}
.copy{text-align:center;margin-top:30px;font-size:.85rem;color:var(--muted-2);border-top:1px solid rgba(255,255,255,.08);padding-top:20px}

/* ===== RESPONSIVE ===== */
@media(max-width:900px){
  .grid-2,.grid-3,.review-grid{grid-template-columns:1fr}
  .feature-icons{grid-template-columns:1fr 1fr}
  .hero-stats{grid-template-columns:1fr 1fr}
  .pillar-grid{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr}
  .news-inner{flex-direction:column;text-align:center}
}
@media(max-width:600px){
  .grid-3,.pillar-grid,.row2,.feature-icons,.hero-stats{grid-template-columns:1fr}
  .nav-links{display:none;position:absolute;top:66px;left:0;right:0;background:var(--navy-2);flex-direction:column;padding:16px 20px;border-bottom:1px solid rgba(255,255,255,.1)}
  .nav-links.open{display:flex}
  .hamburger{display:block}
  .section{padding:52px 0}
}