:root {
  --bg: #0a0e14;
  --card: #101722;
  --border: #1d2836;
  --text: #e6edf3;
  --muted: #8b98a9;
  --accent: #22c55e;
  --accent-dark: #16a34a;
  --danger: #ef4444;
  --radius: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.muted { color: var(--muted); }

/* Sub-page hero */
.page-hero { padding: 52px 20px 10px; }
.page-hero h1 { font-size: clamp(26px, 4vw, 38px); letter-spacing: -.02em; line-height: 1.15; }
.hero-sub.left { text-align: left; margin: 14px 0 0; max-width: 760px; }
.breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 12px; }
.breadcrumb a { color: var(--accent); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

/* Prose / article content (boxed layout rules live at the end of this file) */
.prose h2 { font-size: clamp(20px, 3vw, 26px); margin: 36px 0 10px; color: var(--text); }
.prose h3 { font-size: 17px; margin: 24px 0 8px; }
.prose p, .prose li, .prose dd { color: var(--muted); font-size: 15.5px; }
.prose ul, .prose ol { padding-left: 22px; margin: 12px 0; display: flex; flex-direction: column; gap: 6px; }
.prose a { color: var(--accent); }
.post h1 { font-size: clamp(26px, 4vw, 38px); line-height: 1.2; letter-spacing: -.02em; }
.post-meta { font-size: 13.5px; margin: 10px 0 24px; }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; align-items: start; }
.check-list { list-style: none; display: flex; flex-direction: column; gap: 8px; font-size: 14px; color: var(--muted); }
.check-list li::before { content: "✓"; color: var(--accent); font-weight: 700; margin-right: 8px; }

/* Tiles */
.tile-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
.tile-grid.wide { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
.tile {
  display: flex; align-items: center; gap: 10px;
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px 14px; color: var(--text); text-decoration: none;
  font-size: 14px; font-weight: 600; transition: border-color .15s;
}
.tile:hover { border-color: var(--accent); }
.tile .avatar {
  flex-shrink: 0; width: 32px; height: 32px; border-radius: 8px;
  background: rgba(34, 197, 94, .12); color: var(--accent);
  display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700;
}

/* Blog cards */
.post-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 16px; }
.post-card {
  display: block; background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px; text-decoration: none;
  transition: border-color .15s, transform .1s;
}
.post-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.post-card .post-date { font-size: 12px; color: var(--muted); display: block; margin-bottom: 10px; }
.post-card h3 { font-size: 16px; color: var(--text); margin-bottom: 8px; line-height: 1.4; }
.post-card p { font-size: 13.5px; color: var(--muted); }

/* Glossary */
.glossary dt { font-weight: 700; color: var(--text); margin-top: 18px; font-size: 15.5px; }
.glossary dd { margin: 4px 0 0 0; padding-left: 0; }

.nav a.active { color: var(--accent); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 14, 20, .85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.logo {
  display: flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 17px; color: var(--text); text-decoration: none;
}
.logo svg { color: var(--accent); }
.nav { display: flex; gap: 24px; }
.nav a { color: var(--muted); text-decoration: none; font-size: 14px; transition: color .15s; }
.nav a:hover { color: var(--text); }

@media (max-width: 640px) { .nav { display: none; } }

/* Buttons */
.btn {
  display: inline-block; border: none; cursor: pointer; text-decoration: none;
  font-size: 15px; font-weight: 600; padding: 12px 22px; border-radius: 8px;
  transition: background .15s, transform .1s; text-align: center;
}
.btn:active { transform: scale(.98); }
.btn-primary { background: var(--accent); color: #05230f; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-lg { padding: 15px 30px; font-size: 17px; }

/* Hero */
.hero { padding: 64px 20px 40px; text-align: center; }
.pill {
  display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: .3px;
  color: var(--accent); border: 1px solid rgba(34, 197, 94, .35);
  background: rgba(34, 197, 94, .08); padding: 5px 14px; border-radius: 99px; margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(28px, 5vw, 46px); line-height: 1.15; letter-spacing: -.02em;
  max-width: 800px; margin: 0 auto 16px;
}
.hero-sub { color: var(--muted); max-width: 640px; margin: 0 auto 32px; font-size: 17px; }

/* Tool card */
.tool-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; max-width: 720px; margin: 0 auto; text-align: left;
}
.opt-row { display: flex; align-items: center; gap: 10px; font-size: 14px; margin-bottom: 16px; cursor: pointer; user-select: none; }
.opt-row em { color: var(--muted); font-style: normal; font-size: 12px; }
.opt-row input { accent-color: var(--accent); width: 16px; height: 16px; }

.dropzone {
  border: 2px dashed var(--border); border-radius: var(--radius);
  padding: 44px 20px; text-align: center; cursor: pointer;
  transition: border-color .15s, background .15s; color: var(--muted);
}
.dropzone:hover, .dropzone:focus-visible, .dropzone.dragover {
  border-color: var(--accent); background: rgba(34, 197, 94, .05); outline: none;
}
.dz-title { color: var(--text); font-weight: 600; margin-top: 10px; }
.dz-sub { font-size: 13px; margin-top: 4px; }

.hint { font-size: 12.5px; color: var(--muted); margin-top: 12px; }

.steps-mini { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 20px; font-size: 13px; color: var(--muted); }
.privacy-note { font-size: 13px; color: var(--muted); margin-top: 18px; }

/* Results */
.results { margin-top: 18px; display: flex; flex-direction: column; gap: 10px; }
.result {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px;
}
.result .r-name { font-weight: 600; font-size: 14px; word-break: break-all; }
.result .r-meta { width: 100%; order: 5; display: flex; flex-wrap: wrap; gap: 6px; }
.badge {
  font-size: 11px; font-weight: 600; padding: 3px 9px; border-radius: 99px;
  background: rgba(239, 68, 68, .12); color: #f87171; border: 1px solid rgba(239, 68, 68, .25);
}
.badge.ok { background: rgba(34, 197, 94, .1); color: var(--accent); border-color: rgba(34, 197, 94, .3); }
.badge.info { background: rgba(59, 130, 246, .1); color: #60a5fa; border-color: rgba(59, 130, 246, .3); }
.r-size { font-size: 12.5px; color: var(--muted); }
.result .btn { margin-left: auto; }
.r-error { color: var(--danger); font-size: 13px; width: 100%; }

.batch-bar {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  margin-top: 14px; padding: 12px 14px; border: 1px solid var(--border);
  border-radius: 10px; background: var(--bg); font-size: 14px;
}

/* Sections */
.section { padding: 56px 20px 8px; }
.section h2 { font-size: clamp(22px, 3.4vw, 30px); letter-spacing: -.01em; margin-bottom: 14px; }
.section p { color: var(--muted); max-width: 800px; }

.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; padding-bottom: 8px; }
.grid-title { grid-column: 1 / -1; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px;
}
.card h3 { font-size: 16px; margin-bottom: 8px; }
.card p { font-size: 14px; }

.steps { list-style: decimal; padding-left: 22px; color: var(--muted); display: flex; flex-direction: column; gap: 8px; max-width: 800px; margin-bottom: 18px; }
.steps strong { color: var(--text); }

/* FAQ */
#faq details {
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  margin-bottom: 10px; overflow: hidden;
}
#faq summary {
  cursor: pointer; padding: 15px 18px; font-weight: 600; font-size: 15px; list-style: none;
  display: flex; justify-content: space-between; align-items: center;
}
#faq summary::after { content: "+"; color: var(--accent); font-size: 18px; }
#faq details[open] summary::after { content: "−"; }
#faq details p { padding: 0 18px 15px; font-size: 14px; }

/* CTA band */
.cta-band {
  margin-top: 70px; padding: 60px 20px; text-align: center;
  border-top: 1px solid var(--border);
  background: radial-gradient(ellipse at top, rgba(34, 197, 94, .07), transparent 65%);
}
.cta-band h2 { font-size: clamp(24px, 4vw, 34px); }
.cta-band p { color: var(--muted); margin: 10px 0 26px; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 48px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(5, 1fr); gap: 28px; }
.footer-logo { font-weight: 700; margin-bottom: 8px; }
.footer-grid h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--text); margin-bottom: 12px; }
.footer-grid a { display: block; color: var(--muted); text-decoration: none; font-size: 14px; padding: 3px 0; }
.footer-grid a:hover { color: var(--text); }
.copyright { margin-top: 36px; font-size: 13px; border-top: 1px solid var(--border); padding-top: 20px; }
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

/* ================= Brand logo ================= */
.brand-logo { height: 26px; width: auto; display: block; }
.footer-logo-img { height: 30px; width: auto; display: block; margin-bottom: 10px; }
.section-tiles { margin-top: 18px; }

/* ================= Boxed articles (blogs, guides, legal) ================= */
.prose {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 44px);
  max-width: 920px;
  margin: 48px auto 12px;
}

/* ================= Shared form controls ================= */
.inp {
  width: 100%; background: var(--bg); border: 1px solid var(--border);
  color: var(--text); border-radius: 8px; padding: 10px 12px;
  font-size: 14px; font-family: inherit;
}
.inp:focus { outline: none; border-color: var(--accent); }
textarea.inp { resize: vertical; line-height: 1.5; }
.inp-num { width: 90px; }
input[type="range"], input[type="radio"], input[type="checkbox"] { accent-color: var(--accent); }
.frow { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.frow label { font-size: 12px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--muted); }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }
.small { font-size: 12.5px; }
.mt8 { margin-top: 8px; }

/* ================= Chips ================= */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  cursor: pointer; border: 1px solid var(--border); background: var(--bg);
  color: var(--muted); padding: 6px 13px; border-radius: 99px;
  font-size: 13px; font-weight: 600; font-family: inherit; user-select: none;
}
.chip:hover { border-color: var(--accent); color: var(--text); }
.chip.on { background: rgba(34, 197, 94, .12); color: var(--accent); border-color: rgba(34, 197, 94, .4); }

/* ================= Content Studio ================= */
.cs-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 22px; }
@media (max-width: 860px) { .cs-grid { grid-template-columns: 1fr; } }
.cs-block { margin-top: 20px; }
.cs-block h3 { font-size: 14px; margin-bottom: 10px; color: var(--text); }
.cs-toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 10px; }
.meter { margin-bottom: 10px; }
.meter-top { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.bar { height: 6px; background: var(--bg); border: 1px solid var(--border); border-radius: 99px; overflow: hidden; }
.bar i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .15s; }
.bar i.over { background: var(--danger); }
.thread-item {
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; font-size: 13px; color: var(--muted);
  margin-top: 8px; white-space: pre-wrap; word-break: break-word;
}

/* ================= Calculators ================= */
.calc-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 16px; }
.calc-out { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: 6px; min-height: 74px; }
.stat span { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.stat b { display: block; font-size: 24px; color: var(--accent); line-height: 1.2; }

/* ================= Converter controls ================= */
.conv-controls {
  display: flex; flex-wrap: wrap; align-items: center; gap: 16px;
  margin: 16px 0 4px; padding-bottom: 14px; border-bottom: 1px solid var(--border);
  font-size: 13.5px; color: var(--muted);
}
.rad { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; color: var(--text); font-weight: 600; }
.rad input[type="number"] { font-weight: 400; }

/* ================= Prompt tools ================= */
.sp-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.prompt-pre {
  white-space: pre-wrap; word-break: break-word;
  background: var(--bg); border: 1px solid var(--border); border-radius: 10px;
  padding: 18px; font-size: 13.5px; color: var(--text); line-height: 1.55;
  max-height: 380px; overflow: auto; margin: 0;
}
.dir-card {
  display: flex; flex-direction: column; gap: 8px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; text-decoration: none; transition: border-color .15s;
}
.dir-card:hover { border-color: var(--accent); }
.dir-card .avatar {
  width: 38px; height: 38px; border-radius: 10px;
  background: rgba(34, 197, 94, .12); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700;
}
.dir-card h3 { font-size: 16px; color: var(--text); }
.dir-card p { font-size: 13.5px; color: var(--muted); }
.dir-card .go { color: var(--accent); font-size: 13px; font-weight: 600; margin-top: auto; }

/* Auth + account + admin */
#auth-nav-slot { margin-left: auto; }
#auth-nav-slot:empty { display: none; }
#auth-nav-slot .nav-link { color: var(--muted); text-decoration: none; font-size: 14px; transition: color .15s; }
#auth-nav-slot .nav-link:hover { color: var(--text); }
#auth-nav-slot .nav-link.active { color: var(--text); font-weight: 600; }

.auth-form .field { margin-bottom: 16px; }
.auth-form .field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 4px; color: var(--muted); }
.auth-form .field input {
  width: 100%; padding: 10px 14px;
  background: var(--card); border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); font-size: 15px; transition: border-color .15s;
}
.auth-form .field input:focus { border-color: var(--accent); outline: none; }
.error-text { color: #ef4444; font-size: 14px; min-height: 20px; margin-bottom: 12px; }

.account-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 24px; margin-bottom: 32px; }
.account-card p { margin: 8px 0; color: var(--muted); }
.account-card strong { color: var(--text); }

.results-list .result { display: flex; align-items: baseline; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.results-list .result:last-child { border-bottom: none; }

.admin-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 16px; margin-bottom: 32px; }
.admin-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; text-align: center; }
.admin-card b { display: block; font-size: 28px; color: var(--accent); margin-bottom: 4px; }
.admin-card span { font-size: 13px; color: var(--muted); }

.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--muted); padding: 8px 16px; border-radius: 8px; cursor: pointer; font-size: 14px; }
.btn-ghost:hover { border-color: var(--accent); color: var(--text); }