/* ============================================================
   SIDO Enterprise Corp — Brand Design System
   Single source of truth for colour, type, spacing and buttons.
   ============================================================ */
:root{
  --navy:#1F3864; --gold:#B08D57; --gold2:#C9A265; --pewter:#6E7681; --pewter2:#8A929C;
  --up:#1B7F5C; --down:#C0392B;
  --bg:#FFFFFF; --surface:#F4F7FB; --surface2:#EAF0F8; --text:#14213D; --mut:#5A6B85;
  --line:#DCE4F0; --hero:#1F3864; --heroText:#FFFFFF; --heroMut:#C9D6EA;
  --r:18px; --shadow:0 8px 30px rgba(20,33,61,.08);
}
@media (prefers-color-scheme:dark){
  :root{ --bg:#0B1526; --surface:#111F36; --surface2:#152743; --text:#EAF1FB; --mut:#93A6C4;
    --line:rgba(255,255,255,.10); --pewter2:#A7AEB8; --up:#3DDC97; --down:#FF8A80;
    --hero:#0B1526; --heroText:#FFFFFF; --heroMut:#93A6C4; --shadow:0 10px 34px rgba(0,0,0,.4);}
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Public Sans',Arial,sans-serif;background:var(--bg);color:var(--text);font-size:16px;line-height:1.6;display:flex;flex-direction:column;min-height:100vh}
.main-content{flex:1}
h1,h2,h3,h4{font-family:'Space Grotesk',sans-serif;letter-spacing:-.02em}
a{color:inherit}
.container{max-width:1140px;margin:0 auto;padding:0 20px}
.container-narrow{max-width:900px;margin:0 auto;padding:0 20px}
.tag{display:inline-block;background:var(--surface2);color:var(--mut);border-radius:8px;padding:4px 10px;font-size:12px;font-weight:600;letter-spacing:.1em;text-transform:uppercase}
.btn{display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 22px;border-radius:999px;font-weight:600;font-size:15px;border:none;cursor:pointer;text-decoration:none}
.btn-gold{background:linear-gradient(135deg,#D9B57C,var(--gold));color:#0B1526}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text)}.btn-ghost:hover{border-color:var(--pewter2);color:var(--pewter2)}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--pewter2)}
section{padding:64px 0}
h2{font-size:clamp(24px,3vw,36px);margin:10px 0 10px}
.sub{color:var(--mut);max-width:44em}
:focus-visible{outline:2px solid var(--gold2);outline-offset:2px;border-radius:6px}

/* top bar */
.topbar{position:sticky;top:0;z-index:50;transition:transform .3s ease;background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.tb{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{font-family:'Space Grotesk';font-weight:700;font-size:18px;color:var(--text);text-decoration:none;line-height:1.05;display:flex;align-items:center;gap:10px}
.logo .mark{width:34px;height:34px;border-radius:7px;background:linear-gradient(135deg,#D9B57C,var(--gold));display:inline-block;flex-shrink:0}
.logo .brand-name{display:flex;flex-direction:column;line-height:1.05}
.logo .brand-name small{font-size:11px;font-weight:500;color:var(--pewter2);letter-spacing:.02em}
.tbc{display:flex;gap:24px;align-items:center}
.nav-links{display:flex;gap:20px;align-items:center}
.nav-links a{color:var(--text);font-weight:600;font-size:14px;text-decoration:none;transition:color .2s ease;position:relative}
.nav-links a:hover{color:var(--gold2)}
.nav-links a::after{content:'';position:absolute;left:0;bottom:-4px;width:0;height:2px;background:var(--gold2);transition:width .2s ease}
.nav-links a:hover::after{width:100%}
.signin{color:var(--text);font-weight:600;font-size:14px;text-decoration:none;transition:opacity .2s ease}
.signin:hover{opacity:.7}
.topbar.hide{transform:translateY(-100%)}

/* Burger Menu */
.burger{display:none;flex-direction:column;justify-content:space-between;width:24px;height:18px;background:transparent;border:none;cursor:pointer;padding:0;z-index:1001}
.burger span{width:100%;height:2px;background-color:var(--text);border-radius:10px;transition:all .3s ease;transform-origin:left}
.burger.open span:nth-child(1){transform:rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:rotate(-45deg)}

/* Sidebar */
.sidebar{position:fixed;top:0;right:-100%;width:min(340px, 85vw);height:100vh;background:var(--bg);z-index:1000;transition:right .35s cubic-bezier(0.4, 0, 0.2, 1);box-shadow:-10px 0 30px rgba(0,0,0,0.1);display:flex;flex-direction:column}
.sidebar.open{right:0}
.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--line)}
.sidebar-close{width:32px;height:32px;background:var(--surface2);border:none;border-radius:8px;cursor:pointer;position:relative;display:flex;align-items:center;justify-content:center}
.sidebar-close span{position:absolute;width:16px;height:2px;background:var(--text);border-radius:2px}
.sidebar-close span:nth-child(1){transform:rotate(45deg)}
.sidebar-close span:nth-child(2){transform:rotate(-45deg)}
.sidebar-content{flex:1;overflow-y:auto;padding:24px}
.sidebar-links{display:flex;flex-direction:column;gap:4px}
.sidebar-links a{color:var(--text);font-size:16px;font-weight:600;text-decoration:none;padding:12px 16px;border-radius:10px;transition:all .2s ease;display:flex;align-items:center}
.sidebar-links a:hover{background:var(--surface2);color:var(--gold2)}
.sidebar-divider{height:1px;background:var(--line);margin:12px 16px}
.sidebar-actions{margin-top:24px;padding:0 16px}
.sidebar-actions .btn{width:100%}
.sidebar-footer{padding:24px;border-top:1px solid var(--line);background:var(--surface)}
.sidebar-footer .eyebrow{margin-bottom:16px;display:block}
.social-links{display:flex;gap:12px}
.social-links a{width:36px;height:36px;border-radius:10px;background:var(--bg);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;text-decoration:none;font-size:11px;font-weight:700;color:var(--mut);transition:all .2s ease}
.social-links a:hover{border-color:var(--gold);color:var(--gold);transform:translateY(-2px)}
body.sidebar-open{overflow:hidden}
body.sidebar-open::after{content:'';position:fixed;top:0;left:0;width:100%;height:100%;background:color-mix(in srgb, var(--navy) 40%, transparent);backdrop-filter:blur(4px);z-index:999;animation:fadeIn .3s ease forwards}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

/* ticker */
.ticker{background:var(--surface);border-bottom:1px solid var(--line);overflow:hidden}
.tkr{display:flex;gap:40px;padding:10px 0;white-space:nowrap;animation:sc 40s linear infinite;width:max-content}
.tki{font-family:'Space Grotesk';font-size:13px;color:var(--mut)}
@keyframes sc{to{transform:translateX(-50%)}}
@media(prefers-reduced-motion:reduce){.tkr{animation:none}}

/* hero */
.hero{background:radial-gradient(1100px 600px at 85% -10%,rgba(176,141,87,.22),transparent 60%),radial-gradient(900px 700px at -10% 30%,rgba(46,90,170,.35),transparent 55%),linear-gradient(180deg,#0B1526 0%,#122341 100%);color:#fff;padding:56px 0;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:64px 64px;-webkit-mask-image:radial-gradient(800px 500px at 60% 20%,#000 30%,transparent 75%);mask-image:radial-gradient(800px 500px at 60% 20%,#000 30%,transparent 75%);pointer-events:none;animation:gridpulse 6s ease-in-out infinite}
@keyframes gridpulse{0%,100%{opacity:.5}50%{opacity:1}}
.sparkfield{position:absolute;inset:0;pointer-events:none;z-index:0}
.hero .spark{position:absolute;width:4px;height:4px;border-radius:50%;background:var(--gold);opacity:0;pointer-events:none;box-shadow:0 0 10px 2px rgba(201,162,101,.7);margin-left:-2px;margin-top:-2px;transition:opacity .2s linear}
.hero .wave{position:absolute;left:0;right:0;bottom:0;height:120px;background:radial-gradient(60% 100% at 50% 100%,rgba(46,90,170,.35),transparent 70%);animation:wave 7s ease-in-out infinite;pointer-events:none}
@keyframes wave{0%,100%{transform:translateY(10px);opacity:.6}50%{transform:translateY(-10px);opacity:1}}
@media(prefers-reduced-motion:reduce){.hero::before,.hero .spark,.hero .wave{animation:none!important}}
.hero .container{position:relative;z-index:1}
.hgrid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.hero h1{font-size:clamp(30px,5vw,52px);line-height:1.06;color:#fff;margin:14px 0 16px}
.hero h1 .g{background:linear-gradient(90deg,#E8CB96,var(--gold));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--heroMut);font-size:17px;max-width:32em;margin-bottom:22px}
.hctas{display:flex;gap:10px;flex-wrap:wrap}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}
.chip{font-size:12px;color:var(--heroMut);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:999px;padding:6px 12px}

/* hero calculator card */
.card{background:color-mix(in srgb,#fff 8%,transparent);border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:22px;backdrop-filter:blur(14px)}
.card h3{color:#fff;font-size:18px;margin-bottom:14px}
.calc-label{font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--heroMut);display:block;margin:0 0 6px}
.calc-field{display:flex;align-items:center;justify-content:space-between;min-height:56px;background:rgba(11,21,38,.45);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:6px 8px 6px 16px;margin-bottom:14px;transition:border-color .25s ease,background-color .25s ease,box-shadow .25s ease;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);gap:8px}
.calc-field.focus-within{border-color:var(--gold);background:rgba(11,21,38,.65);box-shadow:0 0 0 3px rgba(176,141,87,.18),0 8px 24px rgba(11,21,38,.4)}
.amt-input{background:transparent;border:none;color:#fff;font-family:'Space Grotesk';font-size:18px;font-weight:700;width:60%;outline:none}
.amt-input::-webkit-inner-spin-button,.amt-input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
.cur-select{background:rgba(11,21,38,.55);border:1px solid rgba(255,255,255,.16);border-radius:10px;color:#fff;font-family:'Space Grotesk',sans-serif;font-size:13.5px;font-weight:600;letter-spacing:.01em;outline:none;cursor:pointer;padding:10px 36px 10px 12px;transition:border-color .25s ease,background-color .25s ease,box-shadow .25s ease;appearance:none;-webkit-appearance:none;-moz-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' viewBox='0 0 24 24' stroke='%23C9A265' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.cur-select:hover{}
.cur-select:focus{outline:none}
.cur-select option{background:#0F1930;color:#EAF1FB;padding:12px 14px;font-family:'Space Grotesk',sans-serif;font-size:13.5px;font-weight:600;letter-spacing:.01em}
.cur-select option:hover,.cur-select option:checked{background:linear-gradient(90deg,rgba(176,141,87,.25),rgba(176,141,87,.10));color:#fff}
.cur-select optgroup{background:#0F1930;color:var(--pewter2);font-family:'Space Grotesk',sans-serif;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:10px 14px}
.calc-field .amt{font-family:'Space Grotesk';font-weight:700;font-size:22px;color:#fff}
.calc-field .cur{display:inline-flex;align-items:center;gap:6px;font-family:'Space Grotesk';font-weight:600;font-size:14px;color:var(--heroMut);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:6px 12px}
.calc-rate{font-size:12.5px;color:var(--heroMut);margin:2px 0 16px}
.calc-rate b{color:#fff;font-family:'Space Grotesk'}
.sub-row{display:flex;gap:8px;margin-top:12px}
.sub-row input{flex:1;height:46px;background:rgba(11,21,38,.4);border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:0 14px;color:#fff;font-size:14px;font-family:inherit}
.sub-row input::placeholder{color:var(--heroMut)}

/* bento */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-top:32px;align-items:stretch}
.b{border-radius:var(--r);padding:24px;min-height:150px;border:1px solid var(--line);background:var(--surface);display:flex;flex-direction:column}
.b.dark{grid-column:span 4;background:var(--navy);color:#fff;border:none}
.b.gold{grid-column:span 2;background:linear-gradient(160deg,#F4E7CF,#E5CFA6);color:#0B1526;border:none}
.b.pewter{grid-column:span 2;background:linear-gradient(160deg,#5A616B,#7A828C);color:#fff;border:none}
.b.s2{grid-column:span 2}.b.s3{grid-column:span 3}.b.s4{grid-column:span 4}.b.s6{grid-column:span 6}
.b h3{font-size:20px;margin-bottom:10px;line-height:1.2}
.b p{font-size:14.5px;color:var(--mut);margin:0}
.b.dark p,.b.pewter p{color:rgba(255,255,255,.82)}
.b.gold p{color:rgba(11,21,38,.72)}
.b .kpi{font-family:'Space Grotesk';font-weight:700;font-size:30px;margin-bottom:4px}

/* data center */
.dc{background:var(--surface)}
.tabs{display:flex;gap:8px;margin:26px 0 18px;flex-wrap:wrap}
.tabx{background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:9px 18px;font-family:'Space Grotesk';font-weight:600;font-size:13px;color:var(--mut);cursor:pointer}
.tabx.on{background:var(--pewter2);color:#fff;border-color:var(--pewter2)}
.dcgrid{display:grid;grid-template-columns:1.3fr 1fr;gap:16px}
.mcards{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.mc{background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:14px;min-height:84px;transition:transform .2s ease, border-color .2s ease;cursor:default}
.mc:hover{transform:translateY(-2px);border-color:var(--pewter2)}
.mc .val{font-family:'Space Grotesk';font-weight:700;font-size:18px;margin-top:6px}
.mc .up{color:var(--up);font-size:12px;font-weight:600}
.mc .down{color:var(--down);font-size:12px;font-weight:600}
.news{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:6px 16px}
.nrow{padding:13px 0;border-bottom:1px solid var(--line)}.nrow:last-child{border:none}
.nrow .nk{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--pewter2)}
.nrow .nt{font-size:14px;color:var(--text);margin-top:3px}
.ph{height:10px;background:var(--surface2);border-radius:5px;margin:7px 0}
.gh{background:var(--surface2);border-radius:8px;color:transparent}
.w80{width:80%}.w60{width:60%}.w40{width:40%}
.risk{background:var(--surface2);border:1px dashed var(--line);border-radius:14px;padding:16px 18px;font-size:12.5px;color:var(--mut);margin-top:24px}
.risk .cta-row{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.risk .cta-row .btn{height:38px;padding:0 16px;font-size:13px}
.soon{font-size:10px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--pewter2);border:1px solid var(--line);border-radius:999px;padding:3px 8px;margin-left:8px;vertical-align:middle}

/* app badges */
.appbadges{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.appbadge{display:inline-flex;align-items:center;gap:10px;height:46px;padding:0 18px;border-radius:12px;background:#000;color:#fff;text-decoration:none;border:1px solid rgba(255,255,255,.2)}
.appbadge .tw{display:flex;flex-direction:column;line-height:1}
.appbadge .s{font-size:9px;opacity:.85}.appbadge .b{font-family:'Space Grotesk';font-size:14px;font-weight:600}
.appbadge .gl{width:26px;height:26px;border-radius:7px;background:linear-gradient(135deg,#1F3864,#0B1526);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.appbadge .gl::after{content:'S';font-family:'Space Grotesk';font-weight:700;font-size:16px;background:linear-gradient(135deg,#D9B57C,#B08D57);-webkit-background-clip:text;background-clip:text;color:transparent}

/* faq */
.faq details{border:1px solid var(--line);border-radius:14px;margin-bottom:10px;background:var(--surface)}
.faq summary{padding:16px 18px;font-family:'Space Grotesk';font-weight:600;font-size:15px;list-style:none;display:flex;justify-content:space-between;gap:16px;cursor:pointer}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--pewter2);font-size:20px;line-height:1}
.faq details[open] summary::after{content:"\2013"}
.faq p{padding:0 18px 16px;color:var(--mut);font-size:14.5px}

/* blog */
.bg3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.post{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;text-decoration:none;color:var(--text);display:block;transition:border-color .2s ease,transform .2s ease}
.post:hover{border-color:var(--pewter2);transform:translateY(-2px)}
.post .th{height:110px;background:linear-gradient(140deg,var(--surface2),var(--surface));border:1px solid var(--line);border-radius:10px;margin-bottom:12px;position:relative;overflow:hidden}
.post .th::after{content:'';position:absolute;right:-20px;bottom:-20px;width:90px;height:90px;border-radius:16px;background:linear-gradient(135deg,rgba(217,181,124,.35),rgba(176,141,87,.15));transform:rotate(18deg)}
.post h3{font-size:15px;margin:8px 0;color:var(--navy)}
.post .rl{color:var(--pewter2);font-weight:600;font-size:13px}

/* search-form & pagination */
.search-form {
    margin-bottom: 30px;
    display: flex;
    gap: 10px;
}

.search-form input {
    flex-grow: 1;
    padding: 10px 15px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text);
}

.search-form button {
    padding: 10px 20px;
    background: var(--navy);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
}

.search-form button:hover {
    background: var(--pewter);
}

.pagination {
    margin-top: 20px;
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
}

.pagination a, .pagination .page-link {
    padding: 8px 16px;
    background: var(--surface2);
    color: var(--navy);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
}

.pagination a:hover, .pagination .page-link:hover {
    background: var(--line);
}

.pagination .current-page {
    font-size: 14px;
    color: var(--mut);
}

.page-header {
    margin-bottom: 30px;
}

.page-header .header-back {
    margin-bottom: 20px;
}

.page-header h1 {
    font-family: 'Space Grotesk', sans-serif;
    color: var(--navy);
    font-size: 32px;
    margin: 0;
}

.page-header .subtitle {
    font-size: 14px;
    color: var(--pewter);
    margin-top: 8px;
}

.back {
    color: var(--gold);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
}

.back:hover {
    text-decoration: underline;
}

footer{background:var(--navy);color:#B9C7DC;padding:48px 0 28px;font-size:13px}
footer .fc{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px;margin-bottom:26px}
footer h4{color:#fff;font-family:'Space Grotesk';font-size:14px;margin-bottom:10px}
footer p{font-size:12.5px;color:#9DB0CC;max-width:26em}
footer a{color:#B9C7DC;text-decoration:none;display:block;margin-bottom:7px}
footer a:hover{color:#fff}
.legal{border-top:1px solid rgba(255,255,255,.14);padding-top:16px;font-size:12px;color:#9DB0CC}

@media(max-width:900px){
  .burger{display:flex}
  .nav-links,.signin{display:none}
  .topbar .btn-gold{display:none}
  .hgrid,.dcgrid{grid-template-columns:1fr}
  .bento{grid-template-columns:1fr}
  .b.dark,.b.gold,.b.pewter,.b.s2,.b.s3,.b.s4,.b.s6{grid-column:span 1}
  .mcards{grid-template-columns:1fr 1fr}
  .bg3{grid-template-columns:1fr}
  footer .fc{grid-template-columns:1fr 1fr}
  section{padding:44px 0}
}
@media(max-width:760px){
  .tbc{gap:8px}
  .signin{font-size:13px}
  .tbc .btn-gold{height:38px;padding:0 14px;font-size:13px}
  .logo .brand-name{font-size:16px}
}