/* คาถาไทย Ads — landing + auth theme for SmartPanel (ads.katathai.com) */
:root{
  --kt-bg:#09080f; --kt-surface:#100e19; --kt-card:rgba(26,23,41,.78); --kt-card-solid:#1a1729;
  --kt-line:#2b2642; --kt-line-soft:rgba(43,38,66,.6); --kt-text:#f3eee2; --kt-mist:#a9a4bf; --kt-dim:#7d7896;
  --kt-gold:#e6b858; --kt-gold-l:#f6dc9a; --kt-gold-d:#a87a22; --kt-violet:#7c5cff; --kt-green:#06c755; --kt-red:#fb7185;
  --kt-grad:linear-gradient(100deg,#f6dc9a 0%,#e6b858 45%,#a87a22 100%);
  --kt-radius:18px; --kt-radius-sm:12px;
  --kt-head:"Chakra Petch","IBM Plex Sans Thai",system-ui,sans-serif;
  --kt-body:"IBM Plex Sans Thai",system-ui,-apple-system,"Segoe UI",sans-serif;
  --kt-mono:"JetBrains Mono",ui-monospace,monospace;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--kt-bg);color:var(--kt-text);font-family:var(--kt-body);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(60rem 32rem at 88% -8%,rgba(230,184,88,.13),transparent 60%),radial-gradient(44rem 32rem at -12% 28%,rgba(124,92,255,.10),transparent 60%)}
img{max-width:100%;height:auto}
a{color:var(--kt-gold);text-decoration:none;transition:color .15s}
a:hover{color:var(--kt-gold-l)}
h1,h2,h3,h4{font-family:var(--kt-head);font-weight:700;line-height:1.25;margin:0 0 .6em;letter-spacing:0}
p{margin:0 0 1em}
:focus-visible{outline:2px solid var(--kt-gold);outline-offset:3px;border-radius:6px}
.d-none{display:none!important}
.kt-container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.kt-narrow{max-width:820px}
.kt-center{text-align:center}
.kt-muted{color:var(--kt-mist)}
.kt-gold{color:var(--kt-gold)}
.kt-grad-text{background:var(--kt-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.kt-mono{font-family:var(--kt-mono);font-size:.92em}
.kt-skip{position:absolute;left:-999px;top:8px;background:var(--kt-gold);color:#09080f;padding:8px 14px;border-radius:8px;z-index:100}
.kt-skip:focus{left:8px}

/* buttons */
.kt-btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.62rem 1.25rem;border-radius:999px;border:1px solid transparent;
  font-family:var(--kt-body);font-weight:600;font-size:.98rem;line-height:1.2;cursor:pointer;white-space:nowrap;transition:transform .15s,background .15s,border-color .15s,box-shadow .15s}
.kt-btn:hover{transform:translateY(-1px)}
.kt-btn-lg{padding:.85rem 1.6rem;font-size:1.05rem}
.kt-btn-block{width:100%}
.kt-btn-gold{background:var(--kt-gold);color:#09080f!important;box-shadow:0 12px 32px -12px rgba(230,184,88,.6)}
.kt-btn-gold:hover{background:var(--kt-gold-l)}
.kt-btn-ghost{background:rgba(255,255,255,.03);color:var(--kt-text)!important;border-color:var(--kt-line)}
.kt-btn-ghost:hover{border-color:var(--kt-gold);background:rgba(230,184,88,.07)}
.kt-btn-line{background:var(--kt-green);color:#fff!important}
.kt-btn-line:hover{background:#05b34c}
.btn-loading{position:relative;color:transparent!important;pointer-events:none}
.btn-loading::after{content:"";position:absolute;width:18px;height:18px;border:2px solid #09080f;border-right-color:transparent;border-radius:50%;animation:kt-spin .7s linear infinite}
@keyframes kt-spin{to{transform:rotate(360deg)}}

/* brand */
.kt-brand{display:inline-flex;align-items:center;gap:.6rem;color:var(--kt-text)!important}
.kt-brand img{width:36px;height:36px;border-radius:10px}
.kt-brand-name{font-family:var(--kt-head);font-weight:700;font-size:1.25rem;line-height:1;background:var(--kt-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.kt-brand-name small{font-size:.62em;margin-left:.3em;letter-spacing:.08em;-webkit-text-fill-color:var(--kt-mist);color:var(--kt-mist)}

/* nav */
.kt-nav{position:sticky;top:0;z-index:50;background:rgba(9,8,15,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:border-color .2s}
.kt-nav.is-scrolled{border-bottom-color:var(--kt-line)}
.kt-nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:1rem}
.kt-menu{display:flex;align-items:center;gap:1.6rem}
.kt-menu>a{color:var(--kt-mist);font-weight:500;font-size:.96rem}
.kt-menu>a:hover{color:var(--kt-text)}
.kt-menu-actions{display:flex;gap:.6rem;margin-left:.4rem}
.kt-nav-toggle{display:none;background:none;border:1px solid var(--kt-line);color:var(--kt-text);border-radius:10px;width:42px;height:42px;font-size:1.4rem;cursor:pointer}

/* hero */
.kt-hero{padding:72px 0 56px}
.kt-hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.kt-eyebrow{display:inline-flex;align-items:center;gap:.55rem;font-size:.86rem;font-weight:600;letter-spacing:.04em;color:var(--kt-gold);margin-bottom:1rem}
.kt-dot{width:8px;height:8px;border-radius:50%;background:var(--kt-gold);box-shadow:0 0 0 4px rgba(230,184,88,.18)}
.kt-hero h1{font-size:clamp(2.3rem,5.2vw,3.9rem);margin-bottom:.45em}
.kt-lead{font-size:1.12rem;color:var(--kt-mist);max-width:36em}
.kt-hero-cta{display:flex;flex-wrap:wrap;gap:.8rem;margin:1.6rem 0}
.kt-trust{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.6rem 1.4rem;color:var(--kt-mist);font-size:.93rem}
.kt-trust i{color:var(--kt-gold);margin-right:.4rem}

.kt-hero-visual{position:relative;padding:24px 10px}
.kt-mock{background:linear-gradient(180deg,rgba(32,28,52,.92),rgba(18,16,30,.92));border:1px solid var(--kt-line);border-radius:22px;padding:20px 20px 22px;box-shadow:0 40px 80px -30px rgba(0,0,0,.8),0 0 0 1px rgba(230,184,88,.06) inset}
.kt-mock-head{display:flex;align-items:center;gap:.8rem;margin-bottom:14px}
.kt-mock-dots{display:flex;gap:6px}
.kt-mock-dots i{width:10px;height:10px;border-radius:50%;background:#3a3456}
.kt-mock-dots i:first-child{background:var(--kt-gold)}
.kt-mock-title{font-family:var(--kt-head);font-weight:600}
.kt-mock-tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.kt-mock-tabs span{font-size:.8rem;padding:.3rem .7rem;border-radius:999px;border:1px solid var(--kt-line);color:var(--kt-mist);display:inline-flex;gap:.35rem;align-items:center}
.kt-mock-tabs span.is-on{background:rgba(230,184,88,.12);border-color:rgba(230,184,88,.45);color:var(--kt-gold-l)}
.kt-mock label{display:block;font-size:.76rem;color:var(--kt-dim);margin:10px 0 4px}
.kt-mock-field{display:flex;justify-content:space-between;align-items:center;background:rgba(9,8,15,.6);border:1px solid var(--kt-line);border-radius:10px;padding:.55rem .8rem;font-size:.92rem}
.kt-mock-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.kt-mock-progress{height:6px;border-radius:99px;background:#241f38;margin:16px 0 14px;overflow:hidden}
.kt-mock-progress span{display:block;height:100%;background:var(--kt-grad);border-radius:99px}
.kt-mock-btn{text-align:center;background:var(--kt-gold);color:#09080f;font-weight:700;border-radius:999px;padding:.6rem}
.kt-pill{display:inline-block;font-size:.76rem;padding:.12rem .6rem;border-radius:999px}
.kt-pill-run{background:rgba(124,92,255,.18);color:#c4b5ff}
.kt-float{position:absolute;display:flex;align-items:center;gap:.45rem;font-size:.85rem;background:rgba(16,14,25,.95);border:1px solid var(--kt-line);border-radius:12px;padding:.5rem .8rem;box-shadow:0 18px 40px -16px rgba(0,0,0,.8)}
.kt-float i{color:var(--kt-gold)}
.kt-float-a{left:-14px;bottom:28px}
.kt-float-b{right:-6px;top:6px}

/* sections */
.kt-section{padding:84px 0}
.kt-section-alt{background:linear-gradient(180deg,rgba(16,14,25,.0),rgba(16,14,25,.75) 20%,rgba(16,14,25,.75) 80%,rgba(16,14,25,0))}
.kt-head{text-align:center;max-width:720px;margin:0 auto 44px}
.kt-head h2{font-size:clamp(1.75rem,3.4vw,2.5rem)}
.kt-head p{color:var(--kt-mist)}
.kt-note{text-align:center;color:var(--kt-dim);font-size:.9rem;margin-top:26px}

/* platforms */
.kt-platforms{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.kt-platform{--pf:var(--kt-gold);display:flex;flex-direction:column;gap:.35rem;padding:18px;border-radius:var(--kt-radius);background:var(--kt-card);border:1px solid var(--kt-line);color:var(--kt-text)!important;transition:transform .18s,border-color .18s,background .18s}
.kt-platform:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--pf) 55%,transparent);background:rgba(32,28,52,.85)}
.kt-platform-icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:1.35rem;color:var(--pf);background:color-mix(in srgb,var(--pf) 14%,transparent);margin-bottom:.35rem}
.kt-platform-name{font-family:var(--kt-head);font-weight:700;font-size:1.08rem}
.kt-platform-desc{font-size:.86rem;color:var(--kt-mist);line-height:1.6}
.kt-pf-facebook{--pf:#4f8bff}.kt-pf-tiktok{--pf:#ff4d7d}.kt-pf-instagram{--pf:#f77fbe}.kt-pf-youtube{--pf:#ff5a5a}
.kt-pf-x{--pf:#e7e7ef}.kt-pf-telegram{--pf:#4cc3ff}.kt-pf-line{--pf:#06c755}.kt-pf-shopee{--pf:#ff7a45}
.kt-pf-spotify{--pf:#1ed760}.kt-pf-threads{--pf:#d9d4ea}.kt-pf-discord{--pf:#8c9eff}.kt-pf-web{--pf:var(--kt-gold)}

/* steps */
.kt-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:s}
.kt-steps li{position:relative;padding:24px 20px;border-radius:var(--kt-radius);background:var(--kt-card);border:1px solid var(--kt-line)}
.kt-step-n{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--kt-grad);color:#09080f;font-family:var(--kt-head);font-weight:700;margin-bottom:14px}
.kt-steps h3{font-size:1.12rem;margin-bottom:.35em}
.kt-steps p{color:var(--kt-mist);font-size:.93rem;margin:0}

/* features */
.kt-features{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.kt-features article{padding:24px;border-radius:var(--kt-radius);background:var(--kt-card);border:1px solid var(--kt-line)}
.kt-features i{font-size:1.5rem;color:var(--kt-gold);display:inline-block;margin-bottom:12px}
.kt-features h3{font-size:1.1rem;margin-bottom:.35em}
.kt-features p{color:var(--kt-mist);font-size:.94rem;margin:0}

/* split / api */
.kt-split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.kt-split h2{font-size:clamp(1.7rem,3.2vw,2.3rem)}
.kt-split>div>p{color:var(--kt-mist)}
.kt-checks{list-style:none;padding:0;margin:0 0 1.5rem}
.kt-checks li{display:flex;gap:.6rem;align-items:flex-start;margin:.45rem 0;color:var(--kt-text)}
.kt-checks i{color:var(--kt-gold);font-size:1.1rem;line-height:1.5}
.kt-code{margin:0;background:#0d0b16;border:1px solid var(--kt-line);border-radius:var(--kt-radius);padding:22px;overflow:auto;font-family:var(--kt-mono);font-size:.84rem;line-height:1.75;color:#d8d3ea;box-shadow:0 30px 60px -30px rgba(0,0,0,.8)}
.kt-code .c{color:#6f6a88}.kt-code .s{color:var(--kt-gold-l)}.kt-code .n{color:#9fd4ff}

/* faq */
.kt-faq details{border:1px solid var(--kt-line);background:var(--kt-card);border-radius:var(--kt-radius-sm);margin-bottom:10px;transition:border-color .15s}
.kt-faq details[open]{border-color:rgba(230,184,88,.4)}
.kt-faq summary{cursor:pointer;list-style:none;padding:16px 20px;font-weight:600;display:flex;justify-content:space-between;gap:1rem}
.kt-faq summary::-webkit-details-marker{display:none}
.kt-faq summary::after{content:"\F64D";font-family:"bootstrap-icons";color:var(--kt-gold);transition:transform .2s}
.kt-faq details[open] summary::after{transform:rotate(45deg)}
.kt-faq details p{padding:0 20px 18px;margin:0;color:var(--kt-mist)}

/* cta */
.kt-cta{padding:30px 0 90px}
.kt-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;padding:38px 40px;border-radius:24px;border:1px solid rgba(230,184,88,.35);
  background:radial-gradient(40rem 16rem at 100% 0,rgba(230,184,88,.18),transparent 60%),linear-gradient(135deg,#1a1729,#120f1e)}
.kt-cta h2{font-size:clamp(1.5rem,3vw,2.1rem);margin-bottom:.3em}
.kt-cta p{color:var(--kt-mist);margin:0}
.kt-cta .kt-hero-cta{margin:0}

/* footer */
.kt-footer{border-top:1px solid var(--kt-line);padding:54px 0 24px;background:rgba(9,8,15,.6)}
.kt-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.kt-footer h4{font-size:.95rem;color:var(--kt-text);margin-bottom:.9em}
.kt-footer a{display:block;color:var(--kt-mist);margin:.35rem 0;font-size:.93rem}
.kt-footer a:hover{color:var(--kt-gold)}
.kt-footer .kt-brand{margin-bottom:.8rem}
.kt-footer p,.kt-footer span{font-size:.9rem}
.kt-footer-bottom{border-top:1px solid var(--kt-line-soft);margin-top:36px;padding-top:20px;color:var(--kt-dim);font-size:.85rem}

/* modal */
.kt-modal{position:fixed;inset:0;z-index:200;display:grid;place-items:center;background:rgba(5,4,10,.7);padding:20px}
.kt-modal[hidden]{display:none}
.kt-modal-box{max-width:520px;width:100%;background:var(--kt-card-solid);border:1px solid var(--kt-line);border-radius:var(--kt-radius);padding:24px}
.kt-modal-body{color:var(--kt-mist);margin-bottom:18px}

/* ---------- auth ---------- */
.kt-auth-wrap{min-height:100vh;display:grid;place-items:center;padding:32px 16px}
.kt-auth-card{width:100%;max-width:980px;display:grid;grid-template-columns:.95fr 1.05fr;border-radius:24px;overflow:hidden;border:1px solid var(--kt-line);background:var(--kt-card-solid);box-shadow:0 50px 100px -40px rgba(0,0,0,.9)}
.kt-auth-aside{display:flex;flex-direction:column;justify-content:space-between;gap:28px;padding:36px;
  background:radial-gradient(30rem 20rem at 0 0,rgba(230,184,88,.18),transparent 60%),radial-gradient(26rem 18rem at 100% 100%,rgba(124,92,255,.16),transparent 60%),#120f1e;border-right:1px solid var(--kt-line)}
.kt-auth-aside h2{font-size:1.9rem}
.kt-auth-aside p{margin:0;font-size:.9rem}
.kt-auth-main{padding:40px 44px}
.kt-auth-main h1{font-size:1.9rem;margin-bottom:.2em}
.kt-back{display:inline-flex;gap:.4rem;align-items:center;font-size:.9rem;color:var(--kt-mist);margin-bottom:18px}
.kt-form{margin-top:22px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:.88rem;color:var(--kt-mist);margin-bottom:6px}
.form-control{width:100%;background:rgba(9,8,15,.7);color:var(--kt-text);border:1px solid var(--kt-line);border-radius:12px;padding:.72rem .95rem;font:inherit;font-size:16px;transition:border-color .15s,box-shadow .15s}
.form-control::placeholder{color:#5f5a78}
.form-control:focus{outline:none;border-color:var(--kt-gold);box-shadow:0 0 0 3px rgba(230,184,88,.18)}
select.form-control{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23a9a4bf' d='M6 8 0 0h12z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}
select.form-control option{background:#1a1729}
.kt-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
.kt-form-row{display:flex;justify-content:space-between;align-items:center;gap:1rem;margin:-2px 0 18px;font-size:.92rem}
.kt-check{display:inline-flex;align-items:flex-start;gap:.55rem;cursor:pointer;color:var(--kt-mist);font-size:.92rem}
.kt-check input{width:18px;height:18px;accent-color:var(--kt-gold);margin-top:3px;flex:none}
.kt-check-terms{margin:4px 0 18px}
.kt-auth-switch{text-align:center;margin:20px 0 0;color:var(--kt-mist);font-size:.95rem}
.kt-success-icon{font-size:3rem;color:var(--kt-green);margin:0}
.alert-message-reponse{margin-bottom:14px}
.alert-message-reponse .alert{display:flex;gap:.6rem;align-items:flex-start;border-radius:12px;padding:.75rem 1rem;font-size:.93rem;border:1px solid}
.alert-message-reponse .alert-warning{background:rgba(251,113,133,.1);border-color:rgba(251,113,133,.35);color:#fecdd3}
.alert-message-reponse .alert-success{background:rgba(6,199,85,.1);border-color:rgba(6,199,85,.35);color:#bbf7d0}
.alert-message-reponse .fe{display:none}
.kt-auth-main .btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;width:100%;margin-top:10px;padding:.65rem 1rem;border-radius:999px;border:1px solid var(--kt-line);background:rgba(255,255,255,.04);color:var(--kt-text)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .kt-platforms{grid-template-columns:repeat(3,1fr)}
  .kt-steps{grid-template-columns:repeat(2,1fr)}
  .kt-footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .kt-nav-toggle{display:inline-grid;place-items:center}
  .kt-menu{position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 20px;background:rgba(12,10,20,.98);border-bottom:1px solid var(--kt-line);display:none}
  .kt-menu.is-open{display:flex}
  .kt-menu>a{padding:.8rem 0;border-bottom:1px solid var(--kt-line-soft);font-size:1rem}
  .kt-menu-actions{margin:16px 0 0}
  .kt-menu-actions .kt-btn{flex:1}
  .kt-hero{padding:40px 0 30px}
  .kt-hero-grid{grid-template-columns:1fr;gap:36px}
  .kt-hero-visual{max-width:460px;margin:0 auto;width:100%}
  .kt-features{grid-template-columns:1fr 1fr}
  .kt-split{grid-template-columns:1fr;gap:28px}
  .kt-auth-card{grid-template-columns:1fr}
  .kt-auth-aside{display:none}
}
@media (max-width:600px){
  .kt-container{padding:0 16px}
  .kt-section{padding:60px 0}
  .kt-platforms{grid-template-columns:1fr 1fr;gap:10px}
  .kt-platform{padding:14px}
  .kt-platform-desc{font-size:.8rem}
  .kt-steps,.kt-features{grid-template-columns:1fr}
  .kt-hero-cta .kt-btn{flex:1 1 100%}
  .kt-hero-visual{padding:0;display:flex;flex-wrap:wrap;gap:8px}
  .kt-mock{width:100%}
  .kt-float{position:static;font-size:.8rem}
  .kt-cta-inner{padding:28px 22px}
  .kt-footer-grid{grid-template-columns:1fr}
  .kt-auth-main{padding:28px 20px}
  .kt-grid-2{grid-template-columns:1fr}
  .kt-code{font-size:.76rem;padding:16px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}