/* =============================================
   CloudEstimator.io — Shared Site CSS
   ============================================= */
:root {
  --bg:     #060c18;
  --bg2:    #0b1524;
  --bg3:    #0f1e35;
  --bg4:    #152540;
  --border: rgba(255,255,255,0.08);
  --border2:rgba(255,255,255,0.15);
  --accent: #2563eb;
  --accent2:#60a5fa;
  --green:  #059669;
  --green2: #34d399;
  --amber:  #d97706;
  --amber2: #fbbf24;
  --red2:   #f87171;
  --purple: #7c3aed;
  --cyan2:  #22d3ee;
  /* Brighter text for dark-bg readability */
  --text:   #f8fafc;
  --text2:  #cbd5e1;
  --text3:  #94a3b8;
  --aws:    #ff9900;
  --azure:  #0078d4;
  --gcp:    #4285f4;
  /* Inter = clearest UI font at all sizes on dark backgrounds
     Plus Jakarta Sans = bold display headings with strong contrast
     Fira Code = wide, readable monospace numbers */
  --font-display: 'Plus Jakarta Sans', 'Inter', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'Fira Code', 'JetBrains Mono', monospace;
  --max-w: 1140px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* ── HEADER ── */
.site-header {
  background: linear-gradient(90deg, #0b1524, #0d1e38);
  border-bottom: 1px solid rgba(37,99,235,0.25);
  position: sticky; top: 0; z-index: 200;
  padding: 0 24px; height: 58px;
  display: flex; align-items: center;
}
.hinner {
  max-width: var(--max-w); margin: 0 auto; width: 100%;
  display: flex; align-items: center; gap: 24px;
}
.site-logo {
  font-family: var(--font-display); font-size: 17px; font-weight: 700;
  color: var(--text); text-decoration: none; white-space: nowrap;
}
.site-logo span { color: var(--accent2); }
.site-nav { display: flex; align-items: center; gap: 4px; flex: 1; }
.site-nav > a {
  color: var(--text2); text-decoration: none; font-size: 13px; font-weight: 500;
  padding: 6px 10px; border-radius: 6px; transition: all .15s;
}
.site-nav > a:hover, .site-nav > a.active { color: var(--text); background: rgba(255,255,255,0.06); }
.nav-dropdown { position: relative; }
.nav-dropbtn {
  background: none; border: none; color: var(--text2); font-family: var(--font-body);
  font-size: 13px; font-weight: 500; padding: 6px 10px; border-radius: 6px;
  cursor: pointer; transition: all .15s;
}
.nav-dropbtn:hover { color: var(--text); background: rgba(255,255,255,0.06); }
.nav-dropdown-content {
  display: none; position: absolute; top: 100%; left: 0;
  /* padding-top bridges the gap between button and menu so hover doesn't break */
  padding-top: 8px;
  min-width: 240px; z-index: 300;
}
.nav-dropdown-content-inner {
  background: #0f1e35; border: 1px solid var(--border2); border-radius: 12px;
  padding: 8px; box-shadow: 0 20px 40px rgba(0,0,0,.5);
}
.nav-dropdown:hover .nav-dropdown-content { display: block; }
.nav-dropdown-content a {
  display: block; padding: 9px 12px; color: var(--text2); text-decoration: none;
  font-size: 13px; border-radius: 8px; transition: all .15s;
}
.nav-dropdown-content a:hover { background: rgba(37,99,235,0.15); color: var(--accent2); }
.nav-cta {
  background: var(--accent); color: #fff; text-decoration: none;
  padding: 7px 16px; border-radius: 8px; font-size: 13px; font-weight: 600;
  white-space: nowrap; transition: background .15s;
}
.nav-cta:hover { background: #1d4ed8; }

/* ── FOOTER ── */
.site-footer {
  background: var(--bg2); border-top: 1px solid var(--border);
  padding: 48px 24px 32px;
}
.footer-inner {
  max-width: var(--max-w); margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px;
}
.footer-brand p { color: var(--text3); font-size: 13px; margin-top: 8px; line-height: 1.6; }
.footer-col h4 { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--text3); margin-bottom: 12px; }
.footer-col a { display: block; color: var(--text2); text-decoration: none; font-size: 13px; margin-bottom: 7px; transition: color .15s; }
.footer-col a:hover { color: var(--accent2); }
.footer-bottom { max-width: var(--max-w); margin: 32px auto 0; padding-top: 20px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--text3); }
.footer-bottom a { color: var(--text3); text-decoration: none; margin-left: 16px; }
.footer-bottom a:hover { color: var(--text2); }

/* ── GUIDE LAYOUT ── */
.guide-wrap { max-width: var(--max-w); margin: 0 auto; padding: 48px 24px 80px; display: grid; grid-template-columns: 1fr 280px; gap: 48px; }
.guide-content h1 { font-family: var(--font-display); font-size: 36px; font-weight: 800; line-height: 1.2; margin-bottom: 12px; letter-spacing: -0.02em; }
.guide-content .guide-meta { font-size: 13px; color: var(--text3); margin-bottom: 32px; display: flex; align-items: center; gap: 16px; }
.guide-content .guide-meta span { display: flex; align-items: center; gap: 5px; }
.guide-content h2 { font-family: var(--font-display); font-size: 22px; font-weight: 700; margin: 40px 0 12px; color: var(--text); letter-spacing: -0.01em; }
.guide-content h3 { font-size: 17px; font-weight: 600; margin: 28px 0 10px; color: var(--accent2); }
.guide-content p { color: var(--text2); margin-bottom: 16px; font-size: 15px; line-height: 1.75; }
.guide-content ul, .guide-content ol { padding-left: 24px; color: var(--text2); margin-bottom: 16px; font-size: 15px; }
.guide-content li { margin-bottom: 8px; line-height: 1.7; }
.guide-content strong { color: var(--text); font-weight: 600; }
.guide-content code { font-family: var(--font-mono); font-size: 13px; background: var(--bg3); border: 1px solid var(--border); padding: 2px 7px; border-radius: 4px; color: var(--accent2); }
.guide-content pre { background: var(--bg3); border: 1px solid var(--border); border-radius: 10px; padding: 18px; overflow-x: auto; margin: 16px 0; }
.guide-content pre code { background: none; border: none; padding: 0; }
.guide-toc { background: var(--bg2); border: 1px solid var(--border); border-radius: 14px; padding: 20px; position: sticky; top: 80px; height: fit-content; }
.guide-toc h3 { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--text3); margin-bottom: 12px; }
.guide-toc a { display: block; color: var(--text2); text-decoration: none; font-size: 13px; padding: 6px 0 6px 12px; border-left: 2px solid var(--border); margin-bottom: 2px; transition: all .15s; line-height: 1.4; }
.guide-toc a:hover { color: var(--accent2); border-left-color: var(--accent); }

/* ── SHARED COMPONENTS ── */
.page-hero {
  background: linear-gradient(135deg, rgba(37,99,235,0.12), rgba(124,58,237,0.06));
  border-bottom: 1px solid rgba(37,99,235,0.2);
  padding: 48px 24px 40px;
  text-align: center;
}
.page-hero h1 { font-family: var(--font-display); font-size: 40px; font-weight: 800; line-height: 1.15; margin-bottom: 12px; }
.page-hero p { font-size: 17px; color: var(--text2); max-width: 600px; margin: 0 auto; }
.breadcrumb { max-width: var(--max-w); margin: 0 auto; padding: 12px 24px; font-size: 12px; color: var(--text3); }
.breadcrumb a { color: var(--text3); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent2); }

.info-box { background: rgba(37,99,235,0.08); border: 1px solid rgba(37,99,235,0.25); border-radius: 12px; padding: 16px 20px; margin: 20px 0; }
.info-box.green { background: rgba(5,150,105,0.08); border-color: rgba(5,150,105,0.25); }
.info-box.amber { background: rgba(217,119,6,0.08); border-color: rgba(217,119,6,0.25); }
.info-box.red   { background: rgba(220,38,38,0.08); border-color: rgba(220,38,38,0.25); }

.data-table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.data-table th { background: var(--bg3); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--text3); padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); }
.data-table td { padding: 11px 14px; font-size: 14px; border-bottom: 1px solid rgba(255,255,255,0.04); color: var(--text2); }
.data-table tr:last-child td { border-bottom: none; }
.data-table td strong { color: var(--text); }
.data-table .mono { font-family: var(--font-mono); color: var(--accent2); }
.data-table .green-td { color: var(--green2); font-family: var(--font-mono); }
.data-table .amber-td { color: var(--amber2); font-family: var(--font-mono); }

.card { background: var(--bg2); border: 1px solid var(--border); border-radius: 14px; padding: 20px 22px; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 20px 0; }
.card-grid.two { grid-template-columns: 1fr 1fr; }
.card-grid.four { grid-template-columns: repeat(4, 1fr); }
.stat-card { background: var(--bg3); border: 1px solid var(--border); border-radius: 12px; padding: 18px; }
.stat-card .stat-val { font-family: var(--font-mono); font-size: 26px; font-weight: 500; color: var(--accent2); }
.stat-card .stat-lbl { font-size: 12px; color: var(--text3); margin-top: 3px; }
.stat-card .stat-sub { font-size: 13px; color: var(--text2); margin-top: 6px; }

.cta-box { background: linear-gradient(135deg, rgba(37,99,235,0.15), rgba(124,58,237,0.1)); border: 1px solid rgba(37,99,235,0.3); border-radius: 16px; padding: 28px 32px; text-align: center; margin: 32px 0; }
.cta-box h3 { font-family: var(--font-display); font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.cta-box p { color: var(--text2); margin-bottom: 18px; }
.btn-primary { display: inline-flex; align-items: center; gap: 8px; background: linear-gradient(135deg, #2563eb, #7c3aed); color: #fff; text-decoration: none; padding: 12px 24px; border-radius: 10px; font-weight: 600; font-size: 14px; transition: opacity .15s; }
.btn-primary:hover { opacity: .9; }

/* ── TOOL PAGES ── */
.tool-wrap { max-width: 1280px; margin: 0 auto; }

/* ── RESPONSIVE ── */
@media(max-width: 900px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .guide-wrap { grid-template-columns: 1fr; }
  .guide-toc { position: static; }
  .card-grid { grid-template-columns: 1fr 1fr; }
  .card-grid.four { grid-template-columns: 1fr 1fr; }
  .page-hero h1 { font-size: 28px; }
}
@media(max-width: 600px) {
  .site-nav > a { display: none; }
  .footer-inner { grid-template-columns: 1fr; }
  .card-grid, .card-grid.two, .card-grid.four { grid-template-columns: 1fr; }
  .page-hero h1 { font-size: 24px; }
  .guide-content h1 { font-size: 26px; }
}