/*
  Zevs Solutions LLC — Site Styles
  Lightweight, responsive, accessible, no external dependencies.
*/

:root {
  --bg: #ffffff;
  --text: #0f172a; /* slate-900 */
  --muted: #475569; /* slate-600 */
  --surface: #f8fafc; /* slate-50 */
  --border: #e2e8f0; /* slate-200 */
  --primary: #2563eb; /* blue-600 */
  --primary-600: #1d4ed8; /* blue-700 */
  --accent: #0ea5e9; /* sky-500 */
  --success: #16a34a; /* green-600 */
  --radius: 12px;
  --shadow-sm: 0 1px 2px rgba(2, 6, 23, 0.06);
  --shadow-md: 0 8px 24px rgba(2, 6, 23, 0.08);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.skip-link {
  position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden;
}
.skip-link:focus { position: static; width: auto; height: auto; padding: .5rem 1rem; background: var(--primary); color: white; }

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 0.75rem 0; }
.brand { display: flex; align-items: center; gap: .5rem; color: inherit; }
.brand:hover { text-decoration: none; }
.brand-mark { width: 28px; height: 28px; }
.brand-name { font-weight: 700; letter-spacing: .2px; }

.site-nav { display: flex; gap: 1rem; align-items: center; }
.site-nav a { padding: .5rem .75rem; border-radius: 8px; color: var(--muted); }
.site-nav a:hover { background: var(--surface); text-decoration: none; color: var(--text); }
.site-nav a.active { color: var(--text); font-weight: 600; }
.nav-toggle { display: none; font-size: 1.25rem; background: none; border: none; cursor: pointer; }

@media (max-width: 800px) {
  .nav-toggle { display: block; }
  .site-nav { position: absolute; right: 4%; top: 64px; flex-direction: column; background: white; padding: .5rem; border: 1px solid var(--border); border-radius: 12px; box-shadow: var(--shadow-md); display: none; }
  .site-nav.open { display: flex; }
}

.hero {
  background: radial-gradient(1200px 600px at 80% -10%, rgba(37, 99, 235, 0.25), transparent 60%),
              radial-gradient(800px 400px at 10% -10%, rgba(14, 165, 233, 0.25), transparent 50%),
              var(--surface);
  border-bottom: 1px solid var(--border);
}
.hero-inner { display: grid; grid-template-columns: 1.2fr 1fr; gap: 2rem; padding: 4rem 0; align-items: center; }
.hero h1 { font-size: clamp(2rem, 3.6vw, 3rem); line-height: 1.15; margin: 0 0 .75rem; }
.hero p { font-size: 1.125rem; color: var(--muted); margin: 0 0 1.25rem; }
.actions { display: flex; gap: .75rem; flex-wrap: wrap; }

@media (max-width: 900px) { .hero-inner { grid-template-columns: 1fr; padding: 3rem 0; } }

.orb { width: 120px; height: 120px; border-radius: 50%; filter: blur(10px); opacity: .6; }
.orb-1 { background: linear-gradient(135deg, var(--primary), var(--accent)); }
.orb-2 { background: linear-gradient(135deg, var(--accent), #22c55e); position: relative; left: 60px; top: 20px; }
.orb-3 { background: linear-gradient(135deg, #f59e0b, var(--primary)); position: relative; left: 10px; top: -10px; width: 80px; height: 80px; }
.hero-art { display: flex; justify-content: center; align-items: center; gap: 1rem; padding: 2rem; }

.section { padding: 3rem 0; }
.section-title { margin: 0 0 1rem; font-size: 1.75rem; }

.grid { display: grid; gap: 1rem; }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1000px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid-4 { grid-template-columns: 1fr; } }

.card { background: white; border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; box-shadow: var(--shadow-sm); }
.card h3 { margin: 0 0 .25rem; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); }

.highlight { background: linear-gradient(180deg, var(--surface), #fff); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.highlight-inner { display: grid; grid-template-columns: 1.2fr; gap: 1rem; padding: 1.5rem 0; }
.highlight .button { margin-top: .75rem; }

.steps .step { background: white; border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; position: relative; }
.step-num { position: absolute; top: -12px; left: -12px; width: 36px; height: 36px; border-radius: 50%; background: var(--primary); color: white; display: grid; place-items: center; font-weight: 700; box-shadow: var(--shadow-md); }

.button { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; padding: .6rem .9rem; border-radius: 10px; border: 1px solid var(--border); background: white; color: var(--text); font-weight: 600; text-decoration: none; box-shadow: var(--shadow-sm); }
.button:hover { text-decoration: none; transform: translateY(-1px); }
.button-primary { background: var(--primary); border-color: var(--primary-600); color: white; }
.button-primary:hover { background: var(--primary-600); }
.button-ghost { background: transparent; }

.site-footer { background: #0b1220; color: #dbeafe; padding-top: 2rem; margin-top: 2rem; }
.site-footer .brand-name { color: #fff; }
.site-footer a { color: #bfdbfe; }
.site-footer a:hover { color: #fff; text-decoration: none; }
.brand-footer .brand-mark { filter: drop-shadow(0 4px 8px rgba(37, 99, 235, 0.4)); }
.footer-grid { display: grid; gap: 1rem; grid-template-columns: 2fr 1fr 1fr; padding-bottom: 1.5rem; border-bottom: 1px solid rgba(255,255,255,.08); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 1rem 0; color: #93c5fd; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr; } }

.muted { color: var(--muted); }
.link-list { list-style: none; margin: 0; padding: 0; }
.link-list li { margin: .25rem 0; }

/* Page headers */
.page-header { background: var(--surface); border-bottom: 1px solid var(--border); }
.page-header .container { padding: 2rem 0; }
.page-header h1 { margin: 0 0 .25rem; }
.page-header p { margin: 0; color: var(--muted); }

/* Content */
.prose { color: var(--text); }
.prose h2 { margin-top: 2rem; margin-bottom: .5rem; font-size: 1.4rem; }
.prose p { margin: .5rem 0; }
.prose ul { padding-left: 1.25rem; }
.prose li { margin: .25rem 0; }

/* Forms */
form { display: grid; gap: .75rem; }
.field { display: grid; gap: .3rem; }
label { font-weight: 600; }
input[type="text"],
input[type="email"],
textarea {
  width: 100%; padding: .6rem .7rem; border-radius: 10px; border: 1px solid var(--border); background: white; font: inherit;
}
textarea { min-height: 140px; resize: vertical; }
.help { color: var(--muted); font-size: .95rem; }
.note { font-size: .95rem; color: var(--muted); }
.form-actions { display: flex; gap: .75rem; align-items: center; flex-wrap: wrap; }
.success { color: var(--success); font-weight: 600; }