/* =============================================================================
   Ideas Central — one stylesheet for the whole site.
   Light and professional to match www.ideas-central.com, with the brand yellow
   as the accent. Change the :root palette and the site follows.
   ========================================================================== */

:root{
  /* Light and clean, after www.ideas-central.com. The yellow is the brand
     fill (always with dark text on it); --yellow-ink is the same hue darkened
     until it reads as text on white. */
  --yellow:#F5C518; --yellow-dim:#d9ad06; --yellow-ink:#8a6d03;
  --yellow-soft:rgba(245,197,24,.14);
  --ink:#14161a;
  --bg:#ffffff; --bg2:#f6f7f9; --panel:#ffffff; --panel2:#f2f4f7;
  --line:#e6e9ee; --line2:#d5dae3;
  --tx:#14161a; --dim:#5c6675; --dimmer:#8b94a3;
  --ok:#0e9f6e; --warn:#b45309; --err:#dc2626; --info:#2563eb;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
  --r:10px; --r-lg:16px;
  --shadow:0 12px 34px rgba(20,22,26,.10);
  --wrap:1120px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--tx);
  font:16px/1.65 var(--sans);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--yellow-ink);text-decoration:none}
a:hover{text-decoration:underline}
hr{border:none;border-top:1px solid var(--line);margin:32px 0}
code,kbd{font-family:var(--mono);font-size:.9em;background:var(--panel2);
  padding:2px 6px;border-radius:5px;border:1px solid var(--line)}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.narrow{max-width:760px}
.center{text-align:center}
.dim{color:var(--dim)}
.small{font-size:13px}
.mono{font-family:var(--mono)}
.nowrap{white-space:nowrap}
.hide{display:none !important}
.mt0{margin-top:0}.mb0{margin-bottom:0}

/* ---------------------------------------------------------------- type --- */
h1,h2,h3,h4{line-height:1.2;margin:0 0 .5em;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(32px,5vw,52px);letter-spacing:-.025em}
h2{font-size:clamp(24px,3.4vw,34px);letter-spacing:-.02em}
h3{font-size:20px}
h4{font-size:16px}
p{margin:0 0 1em}
.lead{font-size:clamp(17px,2vw,20px);color:var(--dim);line-height:1.6}
.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:.14em;
  color:var(--yellow-ink);font-weight:700;margin-bottom:12px}

/* -------------------------------------------------------------- header --- */
header.site{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.88);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
header.site .bar{display:flex;align-items:center;gap:8px;
  max-width:var(--wrap);margin:0 auto;padding:12px 24px}
.brand{font-weight:800;font-size:17px;letter-spacing:.06em;color:var(--tx);font-size:15px;
  display:flex;align-items:center;gap:9px}
.brand:hover{text-decoration:none}
.brand b{color:var(--yellow-dim)}
.brand .dot{width:9px;height:9px;border-radius:99px;background:var(--yellow);
  box-shadow:0 0 12px var(--yellow)}
nav.main{display:flex;gap:4px;margin-left:24px;flex:1}
nav.main a{color:var(--dim);font-size:14px;padding:7px 11px;border-radius:8px;font-weight:500}
nav.main a:hover{color:var(--tx);background:var(--panel);text-decoration:none}
nav.main a.on{color:var(--yellow-ink)}
.hdr-actions{display:flex;gap:8px;align-items:center}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:8px;
  padding:7px 10px;color:var(--tx);cursor:pointer}

@media(max-width:860px){
  nav.main{position:absolute;top:100%;left:0;right:0;flex-direction:column;
    background:var(--panel);border-bottom:1px solid var(--line);padding:8px;margin:0;display:none}
  nav.main.open{display:flex}
  .burger{display:block}
  .hdr-actions .btn.ghost{display:none}
}

/* ------------------------------------------------------------- buttons --- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font:600 14px/1 var(--sans);padding:11px 18px;border-radius:9px;cursor:pointer;
  border:1px solid var(--line2);background:var(--panel2);color:var(--tx);
  transition:.15s border-color,.15s background,.15s color,.15s transform;
  text-decoration:none;white-space:nowrap}
.btn:hover{border-color:var(--yellow-dim);color:var(--ink);background:var(--yellow-soft);text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--yellow);border-color:var(--yellow);color:var(--ink)}
.btn.primary:hover{filter:brightness(1.08);color:var(--ink)}
.btn.ghost{background:transparent;border-color:transparent;color:var(--dim)}
.btn.ghost:hover{background:var(--panel);color:var(--tx);border-color:transparent}
.btn.danger{border-color:rgba(255,92,92,.4);color:var(--err)}
.btn.danger:hover{background:rgba(255,92,92,.1);border-color:var(--err);color:var(--err)}
.btn.sm{padding:7px 12px;font-size:13px;border-radius:8px}
.btn.lg{padding:15px 26px;font-size:16px;border-radius:11px}
.btn.block{width:100%}
.btn[disabled],.btn[aria-busy=true]{opacity:.5;pointer-events:none}

/* --------------------------------------------------------------- cards --- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px}
.card.tight{padding:16px}
.card h3{margin-top:0}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.row.between{justify-content:space-between}
.row.end{justify-content:flex-end}
.stack{display:flex;flex-direction:column;gap:12px}

/* -------------------------------------------------------------- badges --- */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;
  text-transform:uppercase;letter-spacing:.07em;padding:4px 9px;border-radius:99px;
  border:1px solid var(--line2);color:var(--dim)}
.badge.y{border-color:var(--yellow-dim);color:var(--yellow-ink);background:var(--yellow-soft)}
.badge.ok{border-color:rgba(61,220,151,.4);color:var(--ok);background:rgba(61,220,151,.1)}
.badge.warn{border-color:rgba(255,200,87,.4);color:var(--warn);background:rgba(255,200,87,.1)}
.badge.err{border-color:rgba(255,92,92,.4);color:var(--err);background:rgba(255,92,92,.1)}

/* --------------------------------------------------------------- forms --- */
label.f{display:block;margin-bottom:14px}
label.f > span{display:block;font-size:13px;color:var(--dim);margin-bottom:6px;font-weight:500}
input[type=text],input[type=email],input[type=password],input[type=search],
input[type=number],select,textarea{
  width:100%;background:var(--panel2);border:1px solid var(--line);border-radius:9px;
  color:var(--tx);padding:11px 13px;font:15px/1.4 var(--sans)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--yellow);
  box-shadow:0 0 0 3px var(--yellow-soft)}
input::placeholder,textarea::placeholder{color:var(--dimmer)}
textarea{min-height:120px;resize:vertical}
.checkline{display:flex;gap:10px;align-items:flex-start;font-size:14px;
  color:var(--dim);margin-bottom:14px;line-height:1.5}
.checkline input{margin-top:3px;accent-color:var(--yellow);width:16px;height:16px;flex:none}
.err-text{color:var(--err);font-size:13px;margin-top:6px}
fieldset{border:none;padding:0;margin:0}

/* --------------------------------------------------------------- table --- */
table{width:100%;border-collapse:collapse;font-size:14px}
th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.08em;
  color:var(--dim);font-weight:700;padding:10px 12px;border-bottom:1px solid var(--line)}
td{padding:12px;border-bottom:1px solid var(--line);vertical-align:middle}
tr:last-child td{border-bottom:none}
tbody tr:hover{background:var(--panel2)}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--panel)}
.tbl-wrap table{min-width:560px}

/* --------------------------------------------------------------- hero ---- */
.hero{padding:88px 0 64px;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:-40% 20% auto -20%;height:640px;
  background:radial-gradient(closest-side,rgba(245,197,24,.16),transparent 70%);
  pointer-events:none}
.hero .wrap{position:relative}
.hero h1 b{color:var(--yellow-dim)}
.askbar{position:relative;max-width:620px;margin:26px 0 14px}
.askbar input{padding:17px 130px 17px 18px;font-size:16px;border-width:2px;border-radius:13px}
.askbar button{position:absolute;right:6px;top:6px;bottom:6px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:12.5px;color:var(--dim);border:1px solid var(--line);border-radius:99px;
  padding:6px 13px;cursor:pointer;background:var(--panel);transition:.15s}
.chip:hover{border-color:var(--yellow-dim);color:var(--ink);background:var(--yellow-soft)}

/* ------------------------------------------------------------ sections --- */
section{padding:64px 0}
section.tight{padding:40px 0}
.sechead{max-width:640px;margin-bottom:32px}
.sechead.center{margin-left:auto;margin-right:auto;text-align:center}

.feature{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px}
.feature .ico{width:38px;height:38px;border-radius:10px;background:var(--yellow-soft);
  border:1px solid var(--yellow-dim);display:grid;place-items:center;margin-bottom:14px;
  color:var(--yellow-ink);font-size:19px}
.feature h4{margin-bottom:6px}
.feature p{color:var(--dim);font-size:14.5px;margin:0}

/* -------------------------------------------------------------- pricing -- */
.toggle{display:inline-flex;background:var(--panel2);border:1px solid var(--line);
  border-radius:99px;padding:4px;gap:4px}
.toggle button{background:none;border:none;color:var(--dim);font:600 13px var(--sans);
  padding:8px 18px;border-radius:99px;cursor:pointer}
.toggle button.on{background:var(--yellow);color:var(--ink)}

.tiers{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));
  align-items:start}
.tier{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;position:relative;display:flex;flex-direction:column;height:100%}
.tier.feat{border-color:var(--yellow);box-shadow:0 0 0 1px var(--yellow-dim),var(--shadow)}
.tier .tag{position:absolute;top:-11px;left:24px;background:var(--yellow);color:var(--ink);
  font:700 10px/1 var(--sans);text-transform:uppercase;letter-spacing:.09em;
  padding:6px 10px;border-radius:99px}
.tier h3{margin-bottom:4px}
.tier .blurb{color:var(--dim);font-size:13.5px;min-height:40px;margin-bottom:14px}
.price{display:flex;align-items:baseline;gap:5px;margin-bottom:4px}
.price .amt{font-size:38px;font-weight:800;letter-spacing:-.03em}
.price .per{color:var(--dim);font-size:14px}
.price-note{font-size:12px;color:var(--dimmer);min-height:18px;margin-bottom:18px}
.tier ul{list-style:none;padding:0;margin:0 0 20px;flex:1}
.tier li{font-size:14px;padding:6px 0 6px 24px;position:relative;color:var(--tx)}
.tier li::before{content:'';position:absolute;left:4px;top:13px;width:9px;height:5px;
  border-left:2px solid var(--yellow);border-bottom:2px solid var(--yellow);
  transform:rotate(-45deg)}
.tier li.no{color:var(--dimmer)}
.tier li.no::before{border-color:var(--line2);transform:none;top:15px;width:9px;height:0;
  border-left:none;border-bottom:2px solid var(--line2)}

/* --------------------------------------------------------------- notes --- */
.note{background:var(--panel2);border:1px solid var(--line);border-radius:var(--r);
  padding:14px 16px;font-size:14px;color:var(--dim);line-height:1.6}
.note.y{border-color:var(--yellow-dim);background:var(--yellow-soft)}
.note.warn{border-color:rgba(255,200,87,.35);background:rgba(255,200,87,.07)}
.note.err{border-color:rgba(255,92,92,.35);background:rgba(255,92,92,.07)}
.note b{color:var(--tx)}
.note.y b{color:var(--yellow-ink)}

/* --------------------------------------------------------------- meter --- */
.meter{height:8px;border-radius:99px;background:var(--panel2);overflow:hidden;
  border:1px solid var(--line)}
.meter > i{display:block;height:100%;background:var(--yellow);transition:width .35s}
.meter.warn > i{background:var(--warn)}
.meter.full > i{background:var(--err)}

.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:16px}
.stat .k{font-size:11px;text-transform:uppercase;letter-spacing:.09em;color:var(--dim);
  font-weight:700;margin-bottom:6px}
.stat .v{font-size:26px;font-weight:800;letter-spacing:-.02em;line-height:1.1}
.stat .sub{font-size:12.5px;color:var(--dimmer);margin-top:4px}

/* ---------------------------------------------------------------- tabs --- */
.tabs{display:flex;gap:2px;border-bottom:1px solid var(--line);margin-bottom:24px;
  overflow-x:auto}
.tabs button{background:none;border:none;border-bottom:2px solid transparent;
  color:var(--dim);font:600 14px var(--sans);padding:12px 16px;cursor:pointer;white-space:nowrap}
.tabs button:hover{color:var(--tx)}
.tabs button.on{color:var(--ink);border-bottom-color:var(--yellow)}

/* --------------------------------------------------------------- toast --- */
#toasts{position:fixed;right:18px;bottom:18px;z-index:200;display:flex;
  flex-direction:column;gap:10px;max-width:380px}
.toast{background:var(--panel);border:1px solid var(--line2);border-left:3px solid var(--yellow);
  border-radius:var(--r);padding:13px 16px;box-shadow:var(--shadow);font-size:14px;
  animation:tin .25s ease-out}
.toast.ok{border-left-color:var(--ok)} .toast.err{border-left-color:var(--err)}
.toast.warn{border-left-color:var(--warn)}
.toast b{display:block;margin-bottom:3px}
@keyframes tin{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* -------------------------------------------------------------- dialog --- */
.backdrop{position:fixed;inset:0;background:rgba(6,8,11,.72);backdrop-filter:blur(3px);
  z-index:150;display:grid;place-items:center;padding:20px}
.dialog{background:var(--panel);border:1px solid var(--line2);border-radius:var(--r-lg);
  padding:26px;max-width:460px;width:100%;box-shadow:var(--shadow)}
.dialog h3{margin-top:0}

/* -------------------------------------------------------------- footer --- */
footer.site{border-top:1px solid var(--line);background:var(--bg2);margin-top:60px;
  padding:52px 0 34px;font-size:14px}
footer.site .cols{display:grid;gap:32px;grid-template-columns:2fr 1fr 1fr 1fr}
footer.site h5{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--dim);
  margin:0 0 12px;font-weight:700}
footer.site a{color:var(--dim);display:block;padding:4px 0}
footer.site a:hover{color:var(--yellow-ink)}
.legalstrip{border-top:1px solid var(--line);margin-top:36px;padding-top:22px;
  color:var(--dimmer);font-size:12.5px;line-height:1.7}
@media(max-width:760px){footer.site .cols{grid-template-columns:1fr 1fr}}

/* ------------------------------------------------------------ longform --- */
.doc{max-width:780px;margin:0 auto;padding:40px 24px 80px}
.doc h1{font-size:34px;margin-bottom:8px}
.doc h2{font-size:22px;margin:40px 0 12px;padding-top:12px;border-top:1px solid var(--line)}
.doc h3{font-size:17px;margin:26px 0 8px;color:var(--yellow-ink)}
.doc p,.doc li{font-size:15.5px;line-height:1.75;color:#3a4150}
.doc ul,.doc ol{padding-left:22px}
.doc li{margin-bottom:6px}
.doc table{margin:18px 0;font-size:14px;border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden}
.doc blockquote{margin:20px 0;padding:14px 18px;border-left:3px solid var(--yellow);
  background:var(--yellow-soft);border-radius:0 var(--r) var(--r) 0;color:var(--tx)}
.doc blockquote p:last-child{margin-bottom:0}
.doc strong{color:var(--tx)}
.toc{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:16px 20px;margin-bottom:32px}
.toc h4{margin:0 0 8px;font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--dim)}
.toc ol{margin:0;padding-left:20px;columns:2;column-gap:28px}
.toc li{font-size:13.5px;margin-bottom:3px}
@media(max-width:640px){.toc ol{columns:1}}

/* ------------------------------------------------------------ file list -- */
.filerow{display:grid;grid-template-columns:auto 1fr auto auto auto;gap:14px;
  align-items:center;padding:13px 16px;border-bottom:1px solid var(--line)}
.filerow:last-child{border-bottom:none}
.filerow:hover{background:var(--panel2)}
.fmt{font:700 10px/1 var(--mono);text-transform:uppercase;letter-spacing:.06em;
  padding:6px 8px;border-radius:6px;background:var(--yellow-soft);color:var(--yellow-ink);
  border:1px solid var(--yellow-dim);min-width:44px;text-align:center}
.fmt.upload{background:rgba(111,168,255,.12);color:var(--info);border-color:rgba(111,168,255,.4)}
.fname{font-weight:600;font-size:14.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.fmeta{font-size:12.5px;color:var(--dimmer)}
@media(max-width:700px){
  .filerow{grid-template-columns:auto 1fr auto}
  .filerow .hide-sm{display:none}
}

.empty{text-align:center;padding:52px 24px;color:var(--dim)}
.empty .big{font-size:40px;margin-bottom:10px;opacity:.35}

.dropzone{border:2px dashed var(--line2);border-radius:var(--r-lg);padding:34px;
  text-align:center;color:var(--dim);transition:.15s;cursor:pointer}
.dropzone.over{border-color:var(--yellow-dim);background:var(--yellow-soft);color:var(--yellow-ink)}

.skel{background:linear-gradient(90deg,var(--panel2) 25%,var(--line) 50%,var(--panel2) 75%);
  background-size:200% 100%;animation:sk 1.3s infinite;border-radius:6px;height:14px}
@keyframes sk{from{background-position:200% 0}to{background-position:-200% 0}}

@media print{
  header.site,footer.site,.btn,#toasts{display:none}
  body{background:#fff;color:#000}
  .doc p,.doc li{color:#000}
}