/* ============================================================================
   UniOne — product website
   CI from the logo: deep navy #0A1F5C · brand blue #1A56C8 · cyan #20C0E0
   ========================================================================== */

:root{
  --ink:#0A1F5C; --ink-deep:#07133E;
  --blue:#1A56C8; --blue-2:#2E7FE0;
  --cyan:#20C0E0; --cyan-2:#5BD4EC; --cyan-soft:#E8F6FB;
  --paper:#F6F8FC; --white:#FFFFFF;
  --muted:#5A6478; --line:#E2E8F1;
  --sans:'IBM Plex Sans','IBM Plex Sans Thai','Noto Sans Thai',sans-serif;
  --mono:'JetBrains Mono','IBM Plex Sans Thai',ui-monospace,monospace;
  --signal:linear-gradient(90deg,#0A1F5C 0%,#1A56C8 50%,#20C0E0 100%);
  --shadow-sm:0 1px 2px rgba(10,31,92,.04),0 6px 18px rgba(10,31,92,.06);
  --shadow-lg:0 24px 60px rgba(10,31,92,.16);
  --r:16px; --rs:11px;
  --maxw:1180px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-size:16px;line-height:1.6;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
.mono{font-family:var(--mono);}
h1,h2,h3{margin:0;line-height:1.08;letter-spacing:-.02em;font-weight:700;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;}

/* ── signal bar (recurring brand thread) ── */
.signal{height:3px;background:var(--signal);}

/* ── eyebrow ── */
.eyebrow{font-family:var(--mono);font-size:12.5px;font-weight:600;letter-spacing:2.2px;
  text-transform:uppercase;color:var(--blue);margin:0 0 16px;display:flex;align-items:center;gap:9px;}
.eyebrow--light{color:var(--cyan-2);}

/* ── buttons ── */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--sans);font-size:15px;font-weight:600;
  padding:12px 22px;border-radius:999px;border:1.5px solid transparent;cursor:pointer;line-height:1;transition:transform .15s,box-shadow .15s,background .15s;}
.btn--primary{background:var(--signal);color:#fff;box-shadow:0 8px 20px rgba(26,86,200,.28);}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(26,86,200,.36);}
.btn--ghost{background:var(--white);color:var(--ink);border-color:var(--line);}
.btn--ghost:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px);}
.btn--lg{padding:14px 26px;font-size:16px;}

/* ════════════════════════  NAV  ════════════════════════ */
.nav{position:sticky;top:0;z-index:50;background:rgba(246,248,252,.82);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line);}
.nav__inner{display:flex;align-items:center;gap:26px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;letter-spacing:-.01em;}
.brand__logo{height:32px;width:auto;}
.brand__name{color:var(--ink);}
.nav__links{display:flex;gap:26px;margin-left:14px;font-size:14.5px;font-weight:500;color:var(--muted);}
.nav__links a{transition:color .15s;}
.nav__links a:hover{color:var(--ink);}
.nav__cta{margin-left:auto;}

/* ════════════════════════  HERO  ════════════════════════ */
.hero{position:relative;padding:72px 0 40px;overflow:hidden;}
.hero::before{content:"";position:absolute;top:-260px;right:-160px;width:680px;height:680px;border-radius:50%;
  background:radial-gradient(circle,rgba(32,192,224,.16),transparent 62%);pointer-events:none;}
.hero__grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;position:relative;}
.hero__title{font-size:clamp(2.3rem,5.2vw,3.8rem);font-weight:700;}
.grad{background:linear-gradient(100deg,var(--blue) 0%,var(--cyan) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;}
.hero__sub{margin:22px 0 30px;font-size:17.5px;color:var(--muted);max-width:520px;font-weight:300;}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;}
.hero__tags{list-style:none;display:flex;flex-wrap:wrap;gap:10px 20px;margin:28px 0 0;padding:0;font-size:13px;color:var(--muted);}

/* hero visual & multi-tab browser mockup */
.hero__visual{position:relative;}
.glow{position:absolute;border-radius:50%;filter:blur(50px);z-index:0;}
.glow--cyan{width:380px;height:380px;top:-30px;right:-40px;background:rgba(32,192,224,.28);}
.browser{position:relative;z-index:1;background:var(--white);border:1px solid var(--line);border-radius:18px;
  box-shadow:var(--shadow-lg);overflow:hidden;}
.browser__bar{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line);background:#FBFCFE;}
.browser__bar .dot{width:11px;height:11px;border-radius:50%;flex:0 0 auto;}
.d1{background:#FF6058;}.d2{background:#FFBE2E;}.d3{background:#28C840;}

.browser__tabs{display:flex;gap:6px;margin-left:auto;overflow-x:auto;}
.tab-btn{padding:5px 11px;border-radius:6px;border:none;background:var(--paper);color:var(--muted);font-size:11.5px;font-weight:600;cursor:pointer;transition:all .15s;}
.tab-btn.active{background:var(--blue);color:#fff;}

.browser__body{padding:18px;background:#F8FAFC;min-height:340px;}
.mockup-frame{display:none;}
.mockup-frame.active{display:block;animation:fadeIn .2s ease;}

@keyframes fadeIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}

.mockup-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;}
.mockup-title{font-size:13.5px;font-weight:700;color:var(--ink);}

.mockup-stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:14px;}
.mcard{background:#fff;padding:10px 12px;border-radius:10px;border:1px solid var(--line);}
.mcard__label{font-size:10.5px;color:var(--muted);}
.mcard__num{font-family:var(--mono);font-size:18px;font-weight:700;color:var(--ink);margin-top:2px;}
.mcard__unit{font-size:11px;color:var(--muted);}
.mcard__sub{font-size:10px;margin-top:2px;}

.text-blue{color:var(--blue)!important;}
.text-green{color:#2e7d32!important;}
.text-red{color:#c0392b!important;}
.font-bold{font-weight:700!important;}

.mockup-chart-preview{background:#fff;padding:12px;border-radius:10px;border:1px solid var(--line);}
.chart-header{font-size:11.5px;font-weight:700;margin-bottom:8px;color:var(--ink);}
.bar-row{display:flex;align-items:center;gap:10px;font-size:11px;margin-bottom:6px;}
.bar-row span{width:110px;flex-shrink:0;}
.bar-bg{flex:1;height:8px;background:var(--paper);border-radius:4px;overflow:hidden;}
.bar-fill{height:100%;background:linear-gradient(90deg,var(--blue),var(--cyan));border-radius:4px;}

.mockup-student-card{background:linear-gradient(135deg,#0A1F5C,#1A56C8);color:#fff;padding:12px 16px;border-radius:12px;margin-bottom:14px;display:flex;justify-content:space-between;align-items:center;}
.stu-name{font-weight:700;font-size:13.5px;}
.stu-sub{font-size:11px;opacity:.8;}
.stu-badge{background:rgba(255,255,255,.2);padding:4px 10px;border-radius:8px;font-family:var(--mono);font-size:13px;font-weight:700;}

.mockup-tbl{width:100%;border-collapse:collapse;font-size:11.5px;background:#fff;border-radius:10px;overflow:hidden;border:1px solid var(--line);}
.mockup-tbl th{background:var(--paper);padding:8px 10px;text-align:left;color:var(--muted);font-weight:600;}
.mockup-tbl td{padding:8px 10px;border-top:1px solid var(--line);}

.tag-thaid{background:rgba(46,125,50,.1);color:#2e7d32;padding:2px 6px;border-radius:4px;font-size:10px;font-weight:700;}
.pill-badge{padding:3px 8px;border-radius:999px;font-size:10px;font-weight:700;}
.pill-badge--green{background:rgba(46,125,50,.12);color:#2e7d32;}
.pill-badge--gold{background:rgba(224,153,42,.12);color:#b9770b;}
.pill-badge--blue{background:rgba(26,86,200,.12);color:var(--blue);}
.pill-badge--purple{background:rgba(124,77,255,.12);color:#5b34d6;}

.grade-chip{width:22px;height:22px;border-radius:6px;display:inline-grid;place-items:center;font-weight:700;font-size:10.5px;font-family:var(--mono);}
.grade-a{background:rgba(46,125,50,.12);color:#2e7d32;}
.grade-b{background:rgba(26,86,200,.12);color:var(--blue);}

.grade-dist-mini{background:#fff;padding:10px;border-radius:10px;border:1px solid var(--line);min-width:120px;}
.dist-title{font-size:10px;font-weight:700;color:var(--muted);margin-bottom:6px;}
.dist-bars{display:flex;align-items:flex-end;gap:8px;height:60px;}
.dbar{flex:1;background:var(--blue);border-radius:4px 4px 0 0;display:flex;flex-direction:column;justify-content:space-between;align-items:center;color:#fff;font-size:8px;}

.mockup-grade-split{display:flex;gap:10px;}

.chip--stat{position:absolute;z-index:2;right:-18px;bottom:40px;background:var(--white);border:1px solid var(--line);
  border-radius:14px;box-shadow:var(--shadow-lg);padding:12px 16px;display:flex;flex-direction:column;gap:1px;}
.chip__label{font-size:10px;color:var(--muted);letter-spacing:.5px;}
.chip__value{font-family:var(--mono);font-size:26px;font-weight:600;color:var(--blue);line-height:1;}
.chip__unit{font-size:14px;color:var(--cyan);}
.chip__note{font-size:10px;color:var(--muted);}

/* segments band */
.segments{margin-top:48px;padding-top:20px;border-top:1px solid var(--line);display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.segments__label{font-size:11px;color:var(--muted);letter-spacing:1px;}
.segments__chips{display:flex;gap:8px;flex-wrap:wrap;}
.seg{background:var(--white);border:1px solid var(--line);padding:4px 10px;border-radius:999px;font-size:12px;font-weight:500;}

/* ════════════════════════  LIFECYCLE SHOWCASE  ════════════════════════ */
.lifecycle{padding:96px 0;background:var(--white);}
.lifecycle-showcase-list{display:flex;flex-direction:column;gap:36px;margin-top:40px;}
.l-item{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;background:var(--paper);padding:32px;border-radius:20px;border:1px solid var(--line);}
.l-item__num{font-size:12px;color:var(--blue);font-weight:700;letter-spacing:1px;}
.l-item__copy h3{font-size:22px;margin:6px 0 10px;}
.l-item__copy p{color:var(--muted);fontSize:14.5px;margin-bottom:14px;}
.ticks{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:500;}
.ticks li{color:var(--ink);}

.mini-ui-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:var(--shadow-sm);}
.mini-head{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;border-bottom:1px solid var(--line);padding-bottom:8px;margin-bottom:10px;}
.mini-body{font-size:12px;line-height:1.5;}
.tag-chip{background:var(--paper);border:1px solid var(--line);padding:2px 6px;border-radius:4px;font-size:10px;color:var(--muted);}

/* ════════════════════════  MOCKUP SHOWCASE SECTION  ════════════════════════ */
.mockup-showcase-sec{padding:96px 0;background:var(--paper);}
.showcase-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:40px;}
.sc-card{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow-sm);}
.sc-card__img{background:linear-gradient(135deg,#0A1F5C,#103090);color:#fff;padding:24px;}
.sc-mock-header{margin-bottom:14px;}
.sc-tag{font-size:10px;background:rgba(255,255,255,.2);padding:2px 8px;border-radius:4px;font-family:var(--mono);}
.sc-title{font-size:16px;font-weight:700;margin-top:6px;}
.sc-mock-body{background:rgba(255,255,255,.1);border-radius:10px;padding:12px;font-size:12px;display:flex;flex-direction:column;gap:8px;}
.sc-row{display:flex;justify-content:space-between;}
.sc-card__copy{padding:24px;}
.sc-card__copy h3{font-size:18px;margin-bottom:6px;}
.sc-card__copy p{font-size:13.5px;color:var(--muted);margin:0;}

/* ════════════════════════  TESTIMONIALS  ════════════════════════ */
.testimonials{padding:96px 0;background:var(--white);}
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px;}
.testi-card{background:var(--paper);border:1px solid var(--line);padding:24px;border-radius:16px;display:flex;flex-direction:column;justify-content:space-between;}
.testi-text{font-size:14px;color:var(--ink);line-height:1.6;font-style:italic;margin-bottom:20px;}
.testi-user{display:flex;align-items:center;gap:12px;}
.testi-avatar{width:36px;height:36px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:700;font-size:12px;}
.testi-user b{font-size:13.5px;display:block;}
.testi-user span{font-size:11px;color:var(--muted);}

/* ════════════════════════  INTEGRATIONS  ════════════════════════ */
.integrations{padding:96px 0;background:var(--paper);}
.integ__grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center;}
.integ__chips{display:grid;grid-template-columns:1fr;gap:12px;}
.integ-card{background:#fff;border:1px solid var(--line);padding:14px 18px;border-radius:12px;}
.integ-card__head{display:flex;justify-content:space-between;align-items:center;font-size:14px;}
.integ-card__sub{font-size:11.5px;color:var(--muted);margin-top:4px;}
.badge-status{font-size:10px;font-family:var(--mono);background:rgba(46,125,50,.1);color:#2e7d32;padding:2px 6px;border-radius:4px;font-weight:700;}

/* ════════════════════════  SECURITY  ════════════════════════ */
.security{padding:96px 0;background:var(--white);}
.security__grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.security__list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:16px;}
.security__list li{display:flex;gap:16px;align-items:flex-start;}
.sec-ico{font-size:24px;flex-shrink:0;}
.security__list b{font-size:15px;display:block;}
.security__list p{font-size:13px;color:var(--muted);margin:2px 0 0;}

/* ════════════════════════  BENEFITS & FEATURES  ════════════════════════ */
.benefits{padding:96px 0;}
.benefit-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:40px;}
.bcard{background:#fff;border:1px solid var(--line);padding:24px;border-radius:16px;}
.bcard__ico{font-size:20px;color:var(--blue);margin-bottom:12px;}
.bcard h3{font-size:17px;margin-bottom:8px;}
.bcard p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.5;}

/* ════════════════════════  PRICING & FAQ  ════════════════════════ */
.pricing,.faq{padding:96px 0;}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px;}
.plan{position:relative;display:flex;flex-direction:column;padding:30px 26px;border-radius:var(--r);
  background:var(--paper);border:1px solid var(--line);transition:transform .18s,box-shadow .18s;}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.plan--featured{background:var(--white);border:2px solid var(--blue);box-shadow:var(--shadow-lg);}
.plan__badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--signal);color:#fff;
  font-size:12px;font-weight:600;padding:5px 14px;border-radius:999px;white-space:nowrap;}
.plan__head h3{font-size:22px;margin-bottom:4px;}
.plan__for{font-size:12px;color:var(--muted);}
.plan__price{font-size:20px;font-weight:700;color:var(--ink);margin:16px 0;padding-bottom:16px;border-bottom:1px solid var(--line);}
.plan__feats{list-style:none;margin:0 0 24px;padding:0;display:flex;flex-direction:column;gap:10px;flex:1;}
.plan__feats li{position:relative;padding-left:24px;font-size:13.5px;color:var(--ink);}
.plan__feats li::before{content:"✓";position:absolute;left:0;top:1px;color:#2e7d32;font-weight:700;}

.faq__grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:54px;align-items:start;}
.faq__list{display:flex;flex-direction:column;}
.faq__item{border-bottom:1px solid var(--line);}
.faq__item summary{list-style:none;cursor:pointer;padding:18px 0;font-size:16px;font-weight:600;color:var(--ink);display:flex;justify-content:space-between;}
.faq__item p{margin:0 0 16px;font-size:14.5px;color:var(--muted);}

/* ════════════════════════  CTA & FOOTER  ════════════════════════ */
.cta{padding:96px 0;background:linear-gradient(135deg,#0A1F5C,#103090);color:#fff;text-align:center;position:relative;overflow:hidden;}
.cta h2{font-size:clamp(2rem,4vw,3rem);color:#fff;margin-bottom:12px;}
.cta__sub{font-size:17px;color:rgba(255,255,255,.8);max-width:600px;margin:0 auto 28px;}

.foot{background:#07133E;color:#fff;padding:60px 0 30px;}
.foot__inner{display:flex;justify-content:space-between;align-items:center;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.1);}
.foot__brand{display:flex;align-items:center;gap:12px;}
.foot__logo img{height:32px;}
.foot__nav{display:flex;gap:20px;font-size:13.5px;color:rgba(255,255,255,.7);}
.foot__bar{display:flex;justify-content:space-between;padding-top:24px;font-size:12px;color:rgba(255,255,255,.5);}

/* ════════════════════════  RESPONSIVE  ════════════════════════ */
@media (max-width:980px){
  .hero__grid,.l-item,.showcase-grid,.integ__grid,.security__grid,.faq__grid{grid-template-columns:1fr;gap:30px;}
  .testi-grid,.price-grid,.benefit-grid{grid-template-columns:1fr;}
  .nav__links{display:none;}
  .chip--stat{right:8px;bottom:20px;}
}