/* Nivopay.in — lightweight responsive stylesheet matching the navy-and-gold logo */
:root{
  --navy:#10264A;
  --navy-deep:#091A35;
  --navy-soft:#1B3764;
  --gold:#B88A2A;
  --gold-light:#F7EBCB;
  --gold-pale:#FBF8F0;
  --ink:#1D2A3D;
  --muted:#5E6878;
  --line:#E8E2D4;
  --white:#FFFFFF;
  --radius:14px;
  --radius-lg:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:82px}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#F6F7FA;color:var(--ink);line-height:1.65;-webkit-text-size-adjust:100%}
img{display:block;max-width:100%;height:auto}
a{-webkit-tap-highlight-color:transparent}
button{font:inherit}
.shell{width:100%;max-width:760px;min-height:100vh;margin:0 auto;background:var(--white);overflow:clip;box-shadow:0 0 35px rgba(9,26,53,.07)}
.sticky-nav,nav{position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 16px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);backdrop-filter:saturate(140%) blur(8px)}
.logo{display:flex;align-items:center;gap:10px;min-width:0;text-decoration:none}
.logo img{width:42px;height:42px;object-fit:contain;border-radius:9px}
.logo-name{color:var(--navy);font-size:1.12rem;font-weight:800;letter-spacing:-.3px}
.hamburger{display:flex;flex-direction:column;gap:5px;padding:9px;background:var(--gold-pale);border:1px solid #E7D6AB;border-radius:10px;cursor:pointer}
.hamburger span{display:block;width:21px;height:2px;background:var(--navy);border-radius:4px}
.dropdown{display:none;position:absolute;top:calc(100% + 5px);right:12px;width:min(270px,calc(100vw - 28px));max-height:75vh;overflow-y:auto;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 30px rgba(9,26,53,.16);z-index:110}
.dropdown.open{display:block}
.dropdown a{display:block;padding:11px 15px;font-size:.9rem;font-weight:600;color:var(--ink);text-decoration:none;border-bottom:1px solid #F1EEE7}
.dropdown a:last-child{border-bottom:0}
.dropdown a:hover,.dropdown a:focus-visible{background:var(--gold-pale);color:var(--navy)}
.scroll{flex:1;min-width:0;padding-bottom:24px}
section[id]{scroll-margin-top:82px}
.hero{position:relative;isolation:isolate;padding:30px 20px 27px;display:flex;flex-direction:column;align-items:center;text-align:center;color:#fff;background:linear-gradient(145deg,#18345F 0%,#10264A 58%,#091A35 100%);border-bottom:4px solid var(--gold)}
.hero:before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(circle at 10% 0%,rgba(255,255,255,.13),transparent 44%);pointer-events:none}
.hero-logo{width:88px;height:88px;object-fit:contain;border-radius:16px;margin-bottom:16px;background:#fff;box-shadow:0 5px 18px rgba(0,0,0,.17)}
.hero h1{max-width:650px;margin:0 0 12px;font-size:clamp(1.45rem,4.8vw,2rem);line-height:1.28;font-weight:800;color:#fff;text-wrap:balance}
.hero p{max-width:560px;margin:0 auto 18px;font-size:.96rem;line-height:1.75;color:#F1F4FA}
.hero .note{width:100%;margin-top:10px;text-align:left}
.btn-row{display:flex;gap:10px;width:100%;max-width:480px;margin:0 auto 10px}
.btn{flex:1;min-width:0;display:inline-flex;align-items:center;justify-content:center;padding:11px 12px;border-radius:11px;font-size:.88rem;line-height:1.4;font-weight:750;text-align:center;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:background-color .15s ease,transform .15s ease}
.btn-primary{color:var(--navy);background:#fff;border-color:#fff;box-shadow:0 3px 8px rgba(0,0,0,.12)}
.btn-primary:hover{background:var(--gold-light)}
.btn-outline{color:#fff;background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.58)}
.btn-outline:hover{background:rgba(255,255,255,.16)}
.btn:active{transform:translateY(1px)}
.sec{margin:14px 14px;padding:22px 19px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:0 3px 12px rgba(9,26,53,.035)}
.sec h2{margin:0 0 14px;padding-bottom:10px;border-bottom:2px solid var(--gold-light);font-size:1.18rem;line-height:1.45;font-weight:800;color:var(--navy)}
.sec h3{margin:18px 0 7px;font-size:1rem;line-height:1.5;font-weight:750;color:var(--navy)}
.sec p{margin:0 0 11px;font-size:.94rem;line-height:1.8;color:var(--muted);overflow-wrap:anywhere}
.sec ul,.sec ol{padding-left:21px;margin:8px 0 13px}
.sec li{margin-bottom:5px;font-size:.93rem;line-height:1.8;color:var(--muted);overflow-wrap:anywhere}
.sec a{color:#8B641A;font-weight:700;text-decoration:none;overflow-wrap:anywhere}
.sec a:hover{color:var(--navy);text-decoration:underline}
.toc-list{list-style:none;padding:0;margin:12px 0 0;counter-reset:toc}
.toc-list li{counter-increment:toc;display:flex;align-items:flex-start;gap:10px;padding:10px 0;margin:0;border-bottom:1px solid #F1EEE7;font-size:.92rem}
.toc-list li:last-child{border-bottom:0}
.toc-list li:before{content:counter(toc);flex:0 0 25px;width:25px;height:25px;display:grid;place-items:center;border-radius:50%;background:var(--gold-light);color:var(--navy);font-size:.75rem;font-weight:800}
.toc-list a{flex:1;color:var(--ink);font-weight:600;text-decoration:none;line-height:1.6}
.toc-list a:hover{color:#8B641A}
.sec details{margin:9px 0;border:1px solid var(--line);border-radius:10px;background:#FCFBF8;overflow:hidden}
.sec summary{position:relative;padding:13px 36px 13px 14px;color:var(--navy);font-size:.93rem;line-height:1.55;font-weight:700;cursor:pointer;list-style:none}
.sec summary::-webkit-details-marker{display:none}
.sec summary:after{content:"+";position:absolute;top:50%;right:14px;transform:translateY(-50%);color:#8B641A;font-size:1.2rem;font-weight:700}
.sec details[open] summary{background:var(--gold-pale);border-bottom:1px solid var(--line)}
.sec details[open] summary:after{content:"−"}
.sec details>p,.sec details>ol,.sec details>ul{margin:12px 14px 14px}
.data-table{width:100%;border-collapse:collapse;margin:13px 0;font-size:.88rem;overflow-wrap:anywhere}
.data-table th{background:#F3E7C8;color:var(--navy);font-weight:800;text-align:left}
.data-table th,.data-table td{padding:10px;border:1px solid #E6DFD0;vertical-align:top}
.data-table td{color:var(--muted);line-height:1.65}
.data-table tbody tr:nth-child(even){background:#FCFBF8}
.note{padding:13px;margin:14px 0;background:#FBF6E9;border:1px solid #E9D7A9;border-left:4px solid var(--gold);border-radius:9px;color:#3C4655;font-size:.88rem;line-height:1.75;overflow-wrap:anywhere}
.note strong{color:var(--navy)}
footer{padding:27px 18px;background:var(--navy-deep);color:#EAF0F8;text-align:center;border-top:4px solid var(--gold)}
footer p{margin:0 0 12px;color:#D5DEEB;font-size:.85rem;line-height:1.8;overflow-wrap:anywhere}
footer strong{color:#F4D88F}
footer a{color:#F4D88F;text-decoration:none}
footer a:hover{text-decoration:underline}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:9px 15px;margin:16px 0}
.footer-links a{font-size:.84rem;font-weight:600}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #C59A3B;outline-offset:3px}
/* Screenshot gallery */
.arbpay-gallery{position:relative;overflow:hidden;padding:22px 36px;margin-top:20px;background:linear-gradient(135deg,#FBF8F0,#F5ECD8);border:1px solid #E8D7AF;border-radius:18px}
.gallery-track{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;scrollbar-width:none}
.gallery-track::-webkit-scrollbar{display:none}
.gallery-slide{flex:0 0 calc(50% - 9px);min-width:0;text-align:center;scroll-snap-align:center}
.gallery-slide img{display:block;width:100%;height:280px;object-fit:contain;padding:8px;background:#fff;border:1px solid #E8D7AF;border-radius:14px}
.gallery-slide h3{margin:13px 0 5px;color:var(--navy);font-size:.98rem}
.gallery-slide p{margin:0 0 12px;color:var(--muted);font-size:.83rem;line-height:1.6}
.gallery-arrow{position:absolute;top:38%;z-index:2;width:34px;height:34px;border:1px solid #D9C38D;border-radius:50%;background:#fff;color:var(--navy);font-size:18px;cursor:pointer;box-shadow:0 3px 10px rgba(0,0,0,.08)}
.gallery-prev{left:6px}.gallery-next{right:6px}
.gallery-arrow:hover{background:var(--gold-light)}
.gallery-dots{display:flex;justify-content:center;gap:9px;margin:18px 0}
.gallery-dot{width:10px;height:10px;padding:0;border:0;border-radius:50%;background:#D9DCE2;cursor:pointer}
.gallery-dot.active{background:var(--gold);transform:scale(1.2)}
@media(min-width:700px){.gallery-slide{flex-basis:calc(33.333% - 12px)}}
@media(max-width:520px){.shell{max-width:100%}.hero{padding:27px 16px 24px}.hero-logo{width:78px;height:78px}.sec{margin:11px;padding:19px 15px}.arbpay-gallery{padding:16px 32px}.gallery-track{gap:12px}.gallery-slide{flex-basis:100%}.gallery-slide img{height:290px}.gallery-arrow{top:35%}}
@media(max-width:360px){.hero h1{font-size:1.35rem}.sec{padding:16px 12px}.btn-row{gap:7px}.btn{padding:10px 7px;font-size:.8rem}.data-table{font-size:.78rem}.data-table th,.data-table td{padding:7px 6px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition-duration:.01ms!important}.gallery-track{scroll-behavior:auto}}