/* Virakti EdTech — "lantern night" design system */
:root {
  --ink: #0e0b1a; --ink-2: #151026; --panel: #1b1531; --panel-2: #231b3f; --line: #342a57;
  --paper: #f4ead8; --muted: #b3a8c9; --dim: #8478a3;
  --saffron: #f2a33a; --saffron-2: #ffc46b; --teal: #3cc4b0; --rose: #ef6f7c; --leaf: #8ad06b;
  --r: 14px; --r-lg: 22px;
  --shadow: 0 18px 50px rgba(0,0,0,.45);
  --display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --sans: 'Instrument Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--ink); color: var(--paper); font: 16px/1.6 var(--sans);
  background-image: radial-gradient(1200px 600px at 85% -10%, rgba(242,163,58,.10), transparent 60%),
                    radial-gradient(900px 500px at -10% 30%, rgba(60,196,176,.07), transparent 60%);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--saffron-2); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { max-width: 100%; }
h1, h2, h3 { font-family: var(--display); font-weight: 600; line-height: 1.12; letter-spacing: -.01em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.2rem, 5.4vw, 4rem); }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }
code, kbd, pre { font-family: var(--mono); }
.wrap { width: min(1160px, 100% - 32px); margin-inline: auto; }
.eyebrow { font: 600 .78rem/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--saffron); margin-bottom: 14px; display: inline-block; }
.muted { color: var(--muted); }
.small { font-size: .88rem; }
.center { text-align: center; }
.hidden { display: none !important; }

/* header */
.top { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(12px); background: rgba(14,11,26,.78); border-bottom: 1px solid rgba(52,42,87,.6); }
.top .wrap { display: flex; align-items: center; gap: 18px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--paper); font-family: var(--display); font-size: 1.15rem; font-weight: 600; }
.brand:hover { text-decoration: none; }
.brand small { font: 500 .7rem var(--mono); color: var(--muted); letter-spacing: .1em; text-transform: uppercase; display: block; margin-top: -2px; }
.nav { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.nav a { color: var(--muted); padding: 8px 12px; border-radius: 10px; font-weight: 500; font-size: .95rem; }
.nav a:hover { color: var(--paper); background: var(--panel); text-decoration: none; }
.nav a.btn { color: var(--ink); padding: 7px 14px; }
.nav a.btn:hover { background: var(--saffron-2); color: var(--ink); }
.menu-btn { display: none; margin-left: auto; background: none; border: 1px solid var(--line); color: var(--paper); border-radius: 10px; padding: 7px 11px; font: inherit; }
@media (max-width: 760px) {
  .menu-btn { display: inline-block; }
  .nav { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; align-items: stretch; background: var(--ink-2); padding: 10px 16px 16px; border-bottom: 1px solid var(--line); }
  .nav.open { display: flex; }
}

/* buttons & forms */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid transparent; border-radius: 12px; padding: 11px 18px;
  font: 600 .98rem var(--sans); cursor: pointer; transition: transform .12s, background .2s, border-color .2s; color: var(--ink); background: var(--saffron); text-decoration: none !important; }
.btn:hover { background: var(--saffron-2); transform: translateY(-1px); }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }
.btn.ghost { background: transparent; color: var(--paper); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--saffron); background: rgba(242,163,58,.07); }
.btn.teal { background: var(--teal); }
.btn.danger { background: transparent; color: var(--rose); border-color: rgba(239,111,124,.45); }
.btn.sm { padding: 7px 12px; font-size: .86rem; border-radius: 10px; }
.btn.block { width: 100%; }
label { display: block; font-size: .88rem; color: var(--muted); margin: 0 0 6px; font-weight: 500; }
input, select, textarea {
  width: 100%; background: var(--ink-2); border: 1px solid var(--line); color: var(--paper); border-radius: 10px; padding: 11px 13px; font: 15px var(--sans);
  outline: none; transition: border-color .2s, box-shadow .2s;
}
input:focus, select:focus, textarea:focus { border-color: var(--saffron); box-shadow: 0 0 0 3px rgba(242,163,58,.18); }
input[type=checkbox] { width: auto; accent-color: var(--saffron); }
.field { margin-bottom: 14px; }
.row { display: grid; gap: 14px; grid-template-columns: 1fr 1fr; }
@media (max-width: 600px) { .row { grid-template-columns: 1fr; } }
.check { display: flex; gap: 10px; align-items: flex-start; color: var(--muted); font-size: .9rem; }
.check input { margin-top: 4px; }
.err { color: var(--rose); font-size: .9rem; min-height: 1.3em; margin: 6px 0; }
.ok-msg { color: var(--leaf); }

/* panels */
.card { background: linear-gradient(180deg, var(--panel), var(--ink-2)); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 24px; }
.section { padding: 84px 0; }
.section.tight { padding: 48px 0; }
.grid { display: grid; gap: 18px; }
.g2 { grid-template-columns: repeat(2, 1fr); } .g3 { grid-template-columns: repeat(3, 1fr); } .g4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 960px) { .g3, .g4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .g2, .g3, .g4 { grid-template-columns: 1fr; } }
.pill { display: inline-flex; align-items: center; gap: 6px; font: 600 .72rem var(--mono); letter-spacing: .06em; text-transform: uppercase; padding: 4px 9px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.pill.live { color: var(--teal); border-color: rgba(60,196,176,.45); }
.pill.free { color: var(--ink); background: var(--leaf); border-color: var(--leaf); }
.pill.owned { color: var(--ink); background: var(--saffron); border-color: var(--saffron); }

/* hero */
.hero { padding: 72px 0 40px; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
@media (max-width: 900px) { .hero .wrap { grid-template-columns: 1fr; } }
.hero p.lead { font-size: 1.18rem; color: var(--muted); max-width: 34em; }
.hero h1 em { font-style: italic; color: var(--saffron); }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.scene { border-radius: var(--r-lg); border: 1px solid var(--line); background: #0b0916; overflow: hidden; box-shadow: var(--shadow); }
.scene .code { white-space: pre; min-height: 3.4em; font: 14px/1.7 var(--mono); padding: 16px 18px; background: #120e22; border-bottom: 1px solid var(--line); color: #d9cff0; }
.scene .code .k { color: var(--saffron); } .scene .code .f { color: var(--teal); } .scene .code .n { color: #c9a4ff; }
.scene .code .cursor { display: inline-block; width: 8px; height: 1.1em; background: var(--saffron); vertical-align: -3px; animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* steps */
.step { position: relative; }
.step .num { font: 600 2.6rem var(--display); color: var(--saffron); opacity: .9; }

/* modules */
.part-title { font: 600 .8rem var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--dim); margin: 34px 0 14px; display: flex; align-items: center; gap: 12px; }
.part-title::after { content: ''; flex: 1; height: 1px; background: var(--line); }
.mod { position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 18px; display: flex; flex-direction: column; gap: 8px; transition: border-color .2s, transform .2s; }
.mod:hover { border-color: rgba(242,163,58,.55); transform: translateY(-2px); }
.mod .n { font: 600 .78rem var(--mono); color: var(--dim); }
.mod .world { font: italic 500 .95rem var(--display); color: var(--saffron-2); }
.mod h3 { margin: 0; font-size: 1.12rem; }
.mod .topics { font-size: .88rem; color: var(--muted); }
.mod .py4e { font: .74rem var(--mono); color: var(--dim); }
.mod .foot { margin-top: auto; padding-top: 10px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.mod .price { margin-left: auto; font-weight: 700; }
.mod.selectable { cursor: pointer; }
.mod.selected { border-color: var(--saffron); box-shadow: 0 0 0 2px rgba(242,163,58,.35) inset; }
.mod .bar { height: 5px; background: var(--ink-2); border-radius: 4px; overflow: hidden; }
.mod .bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--teal), var(--leaf)); }

/* pricing */
.price-card { text-align: left; }
.price-card .amt { font: 600 2.6rem var(--display); }
.price-card .amt small { font-size: 1rem; color: var(--muted); font-family: var(--sans); }
.price-card.feature { border-color: var(--saffron); background: linear-gradient(180deg, #2a1f3f, var(--ink-2)); }
.ticks { list-style: none; padding: 0; margin: 14px 0 20px; }
.ticks li { padding-left: 26px; position: relative; margin: 8px 0; color: var(--muted); }
.ticks li::before { content: '✦'; position: absolute; left: 0; color: var(--saffron); }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 3px; background: var(--ink-2); }
.seg button { border: 0; background: none; color: var(--muted); font: 600 .85rem var(--sans); padding: 6px 14px; border-radius: 999px; cursor: pointer; }
.seg button.on { background: var(--saffron); color: var(--ink); }

/* faq */
details { border-bottom: 1px solid var(--line); padding: 16px 0; }
summary { cursor: pointer; font-weight: 600; font-size: 1.04rem; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
summary::after { content: '+'; color: var(--saffron); font-size: 1.3rem; line-height: 1; }
details[open] summary::after { content: '–'; }
details p { color: var(--muted); margin: 10px 0 0; }

/* bulk banner */
.banner { display: grid; grid-template-columns: 1.3fr 1fr; gap: 28px; align-items: center; padding: 34px; border-radius: var(--r-lg);
  background: linear-gradient(120deg, #2b1e44 0%, #1a2a35 100%); border: 1px solid var(--line); }
@media (max-width: 800px) { .banner { grid-template-columns: 1fr; } }
.stat { font: 600 2rem var(--display); color: var(--saffron); }

/* tables (admin) */
.tbl { width: 100%; border-collapse: collapse; font-size: .9rem; }
.tbl th, .tbl td { text-align: left; padding: 10px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl th { font: 600 .74rem var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--dim); }
.tbl tr:hover td { background: rgba(255,255,255,.02); }
.scroll-x { overflow-x: auto; }
.tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--line); margin-bottom: 22px; flex-wrap: wrap; }
.tabs button { background: none; border: 0; color: var(--muted); font: 600 .95rem var(--sans); padding: 12px 14px; cursor: pointer; border-bottom: 2px solid transparent; }
.tabs button.on { color: var(--paper); border-bottom-color: var(--saffron); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font: 600 .74rem var(--mono); padding: 5px 8px; border-radius: 8px; border: 1px solid var(--line); color: var(--muted); cursor: pointer; user-select: none; }
.chip.on { background: var(--teal); color: var(--ink); border-color: var(--teal); }
.chip.locked { background: var(--saffron); color: var(--ink); border-color: var(--saffron); cursor: default; }
dialog { background: var(--panel); color: var(--paper); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 24px; width: min(720px, 100% - 24px); box-shadow: var(--shadow); }
dialog::backdrop { background: rgba(5,3,12,.7); backdrop-filter: blur(3px); }

/* legal / prose */
.prose { max-width: 760px; }
.prose h2 { font-size: 1.45rem; margin-top: 2em; }
.prose p, .prose li { color: #ddd3ea; }
.prose li { margin: 6px 0; }

/* footer */
.foot-site { border-top: 1px solid var(--line); padding: 44px 0 56px; margin-top: 40px; color: var(--muted); font-size: .9rem; }
.foot-site .wrap { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 28px; }
@media (max-width: 700px) { .foot-site .wrap { grid-template-columns: 1fr; } }
.foot-site a { color: var(--muted); display: block; margin: 4px 0; }
.foot-site a:hover { color: var(--paper); }

/* toast */
#toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(20px); opacity: 0; transition: .25s; z-index: 100;
  background: var(--panel-2); color: var(--paper); border: 1px solid var(--saffron); padding: 11px 18px; border-radius: 12px; box-shadow: var(--shadow); max-width: 92vw; }
#toast.show { opacity: 1; transform: translateX(-50%); }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }

/* launch-offer pricing */
.mrp{display:flex;align-items:center;gap:8px;margin-top:6px;font-size:1.05rem;opacity:.85}.mrp s{text-decoration-thickness:2px;opacity:.7}
.pill.offer{background:rgba(239,111,124,.16);color:#ff9aa5;border-color:rgba(239,111,124,.4)}
.mrp-s{opacity:.55;margin-right:4px;font-weight:400}
.price small{opacity:.7;font-weight:400;margin-left:1px}
code, pre, kbd, samp, textarea{font-variant-ligatures:none;font-feature-settings:"liga" 0,"calt" 0}

/* no programming ligatures: == must look like two equals signs */
code,pre,kbd,textarea,.cw-ed,#editor,.console,.mono{font-variant-ligatures:none;font-feature-settings:"liga" 0,"calt" 0,"dlig" 0}