/* shared/components.css — Light/Dark aware, optimised for readability in both modes */
.site-header {
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: blur(12px);
  background: var(--header-bg);
  border-bottom: 1px solid var(--border-subtle);
}
.site-header .inner {
  max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
  height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { font: 700 15px var(--font-sans); color: var(--text-primary); letter-spacing: -0.02em; }
.brand span { color: var(--text-muted); font-weight: 500; }
.nav { display: flex; gap: 6px; align-items: center; }
.nav a {
  font: 500 14px var(--font-sans); color: var(--text-secondary);
  padding: 6px 10px; border-radius: 999px; text-decoration: none;
}
.nav a:hover { color: var(--text-primary); background: var(--surface-raised); text-decoration: none; }
.nav a[aria-current="page"] { color: var(--text-primary); background: var(--surface-raised); box-shadow: inset 0 -2px 0 var(--accent); font-weight: 600; }
:root.light .nav a { color: #334155; }
:root.light .nav a:hover { color: var(--text-primary); background: #E2E8F0; }
:root.light .nav a[aria-current="page"] { background: #E2E8F0; color: #0F172A; }
.nav-cta { margin-left: 8px; }
/* Header CTA buttons — isolate from .nav a pill styles and ensure AA contrast */
.nav a.btn,
.nav .btn {
  padding: 9px 16px;
  border-radius: 999px;
  font: 600 13px var(--font-sans);
  line-height: 1;
  border-width: 1px;
  border-style: solid;
  text-decoration: none;
  white-space: nowrap;
}
.nav a.btn:hover,
.nav .btn:hover { text-decoration: none; }
.nav .btn-primary {
  color: var(--btn-primary-text);
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 1px 3px rgba(0,0,0,0.16);
}
.nav .btn-primary:hover {
  background: var(--accent-hover);
  color: var(--btn-primary-text);
  filter: none;
}
.nav .btn-primary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
/* explicit light-mode CTA — white text on dark blue for maximum legibility */
:root.light .nav a.btn-primary,
:root.light .nav .btn-primary {
  color: #FFFFFF;
  background: #1E3A8A;
  border-color: #1E3A8A;
}
:root.light .nav a.btn-primary:hover,
:root.light .nav .btn-primary:hover {
  color: #FFFFFF;
  background: #1E40AF;
  border-color: #1E40AF;
}
@media (prefers-color-scheme: light) {
  :root:not(.dark) .nav a.btn-primary,
  :root:not(.dark) .nav .btn-primary {
    color: #FFFFFF;
    background: #1E3A8A;
    border-color: #1E3A8A;
  }
  :root:not(.dark) .nav a.btn-primary:hover,
  :root:not(.dark) .nav .btn-primary:hover {
    color: #FFFFFF;
    background: #1E40AF;
  }
}
.nav-dropdown { position: relative; display: inline-flex; align-items: center; }
.nav-dropdown.login-dropdown .dropdown-menu { min-width: 220px; right: 0; left: auto; }
.nav-dropdown > button {
  font: 500 14px var(--font-sans); color: var(--text-secondary);
  background: transparent; border: none; cursor: pointer;
  padding: 6px 10px; border-radius: 999px; display: inline-flex; gap: 6px; align-items: center;
}
.nav-dropdown > button:hover { color: var(--text-primary); background: var(--surface-raised); }
.nav-dropdown > button[aria-expanded="true"] { color: var(--text-primary); background: var(--surface-raised); }
.nav-dropdown .caret { font-size: 11px; transition: transform 150ms ease; }
.nav-dropdown[aria-expanded="true"] .caret { transform: rotate(180deg); }
.dropdown-menu {
  position: absolute; top: calc(100% + 10px); left: 0; min-width: 240px;
  background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); padding: 8px; display: none; z-index: 50;
}
.nav-dropdown.open .dropdown-menu { display: block; }
.dropdown-menu a { display: block; padding: 10px 12px; border-radius: 8px; color: var(--text-secondary); font: 500 13px var(--font-sans); text-decoration: none; }
.dropdown-menu a:hover { background: var(--surface-raised); color: var(--text-primary); text-decoration: none; }
.dropdown-menu .dropdown-label { font: 600 11px var(--font-sans); letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); padding: 8px 12px 4px; }
.dropdown-menu .dropdown-divider { height: 1px; background: var(--border-subtle); margin: 8px 0; }
.dropdown-menu .muted-note { font-size: 12px; color: var(--text-muted); padding: 2px 12px 6px; }
@media (max-width: 880px) {
  .nav-dropdown { width: 100%; }
  .dropdown-menu { position: static; box-shadow: none; border: none; padding: 0 0 0 12px; background: transparent; }
}
.menu-btn { display: none; background: none; border: 1px solid var(--border); color: var(--text-primary); padding: 8px 10px; border-radius: 10px; }
@media (max-width: 880px) {
  .nav { display: none; }
  .nav.open { display: flex; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; background: var(--bg-elevated); padding: 16px; border-bottom: 1px solid var(--border); }
  .menu-btn { display: inline-flex; }
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 18px; border-radius: 999px; font: 600 14px var(--font-sans);
  border: 1px solid transparent; cursor: pointer; text-decoration: none; white-space: nowrap;
}
.btn-primary { background: var(--accent); color: var(--btn-primary-text); border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); text-decoration: none; filter: brightness(1.03); }
.btn-secondary { background: var(--surface); color: var(--text-primary); border-color: var(--border); box-shadow: 0 1px 2px rgba(0,0,0,0.06); }
.btn-secondary:hover { background: var(--surface-raised); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover { color: var(--text-primary); background: var(--surface-raised); }

.hero {
  padding: 96px 0 48px; text-align: center;
  background: radial-gradient(600px 300px at 50% 0%, rgba(18,48,96,0.22), transparent 70%);
}
.hero h1 {
  margin: 16px auto 14px; max-width: 16ch;
  font: 700 clamp(36px, 5vw, 56px)/1.05 var(--font-sans);
  letter-spacing: -0.03em; color: var(--text-primary);
}
.hero .lead {
  max-width: 60ch; margin: 0 auto 28px;
  font-size: clamp(16px, 1.8vw, 19px); color: var(--text-secondary); line-height: 1.6;
}
.hero-ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.trustbar {
  margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--border-subtle);
  font: 500 11px var(--font-sans); letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted);
  display: flex; gap: 10px; flex-wrap: wrap; justify-content: center;
}
.badge-super {
  display: inline-flex; padding: 6px 10px; border-radius: 999px;
  background: var(--accent-subtle); color: var(--text-primary); border: 1px solid var(--border);
  font: 600 12px var(--font-mono);
}
:root.light .badge-super { color: var(--accent); border-color: rgba(30,58,138,0.18); }

.section { padding: 88px 0; border-top: 1px solid var(--border-subtle); }
.section h2 { font: 700 28px/1.15 var(--font-sans); letter-spacing: -0.02em; color: var(--text-primary); margin: 0 0 10px; }
.section .section-lead { color: var(--text-secondary); max-width: 62ch; margin: 0 0 28px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .grid-3 { grid-template-columns: 1fr; } .section { padding: 64px 0; } .hero { padding: 64px 0 36px; } }

.card-outer {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 22px; transition: background 150ms ease, transform 150ms ease; box-shadow: var(--shadow-card);
}
.card-outer:hover { background: var(--surface-hover); transform: translateY(-1px); }
:root.light .card-outer { border-color: var(--border); background: var(--surface); }
.card-outer h3 { margin: 0 0 8px; font: 600 16px var(--font-sans); color: var(--text-primary); }
.card-outer p { margin: 0; font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.card-click { cursor: pointer; }
.card-accent { border-left: 3px solid var(--accent); }
.card-accent.success { border-left-color: var(--success); }
.card-accent.warning { border-left-color: var(--warning); }
.card-accent.identity { border-left-color: var(--module-identity); }
.card-accent.observe { border-left-color: var(--module-observe); }
.card-accent.dns { border-left-color: var(--module-dns); }
.card-accent.smtp { border-left-color: var(--module-smtp); }
.card-accent.tls { border-left-color: var(--module-tls); }
.card-accent.utils { border-left-color: var(--module-utils); }
.card-meta { margin-top: 14px; display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.card-meta a { font: 600 13px var(--font-sans); }
.module-heading { margin: 0; font: 600 15px var(--font-sans); color: var(--text-primary); letter-spacing: -0.01em; }
.module-heading .mono { font-size: 12px; color: var(--text-muted); font-weight: 500; }
.module-detail { margin: 2px 0 0; font-size: 13px; color: var(--text-muted); font-weight: 500; letter-spacing: 0.01em; }
.deploy-card .module-heading { font-size: 14px; }
.deploy-card .module-detail { margin-top: 4px; }

.form-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 20px; box-shadow: var(--shadow-card); border-left: 3px solid var(--border); }
.form-card.warning { border-left-color: var(--warning); }
.form-card.accent { border-left-color: var(--accent); }
label { display: block; font: 500 13px var(--font-sans); color: var(--text-secondary); margin-bottom: 6px; }
input, select, textarea {
  width: 100%; padding: 11px 12px; border-radius: var(--radius-md);
  background: var(--surface-raised); border: 1px solid var(--border); color: var(--text-primary);
  font: 400 14px var(--font-sans);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-ring); }
.help { font-size: 13px; color: var(--text-muted); margin-top: 8px; }

.site-footer {
  border-top: 1px solid var(--border-subtle); padding: 36px 0; margin-top: 0;
  font-size: 13px; color: var(--text-muted);
}
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 24px; }
@media (max-width: 780px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid a { color: var(--text-secondary); }
.footer-grid a:hover { color: var(--text-primary); }

/* modal */
.modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.62); display: none; place-items: center; z-index: 60; padding: 24px; }
.modal-backdrop.open { display: grid; }
.modal { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-lg); max-width: 560px; width: 100%; padding: 24px; box-shadow: var(--shadow); }
.modal h3 { margin: 0 0 8px; color: var(--text-primary); }
.modal p { color: var(--text-secondary); font-size: 14px; }
.modal .close { float: right; background: transparent; border: 1px solid var(--border); color: var(--text-primary); border-radius: 999px; padding: 6px 10px; cursor: pointer; }

/* table-like deploy */
.deploy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 860px) { .deploy-grid { grid-template-columns: 1fr; } }
.deploy-card { background: var(--surface-raised); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 18px; border-left-width: 3px; }
.deploy-card h4 { margin: 0 0 6px; color: var(--text-primary); font-size: 14px; }
.deploy-card dl { margin: 0; font-size: 13px; color: var(--text-secondary); }
.deploy-card dt { font-weight: 600; color: var(--text-secondary); margin-top: 10px; }
.deploy-card dd { margin: 2px 0 0 0; color: var(--text-muted); }