/* ============================================================
   Operon Studio — Website UI Kit components
   Import AFTER colors_and_type.css
   ============================================================ */

/* Container rails */
.container { max-width: var(--rail); margin: 0 auto; padding: 0 var(--gutter); }
.container-narrow { max-width: var(--rail-narrow); margin: 0 auto; padding: 0 var(--gutter); }
.container-wide   { max-width: var(--rail-wide);   margin: 0 auto; padding: 0 var(--gutter); }

/* ============================================================
   Nav
   ============================================================ */
.op-nav {
  position: sticky; top: 0; z-index: 40;
  background: rgba(251, 249, 245, 0.82);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--rule);
}
.op-nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; padding: 0 var(--gutter); max-width: var(--rail-wide); margin: 0 auto;
}
.op-nav-brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.op-nav-brand img { height: 24px; width: auto; }
.op-nav-links { display: flex; gap: var(--s-6); align-items: center; }
.op-nav-link {
  font-size: 14px; font-weight: 500; color: var(--ink-2);
  text-decoration: none; padding: 6px 0; position: relative;
  transition: color var(--dur-base) var(--ease);
}
.op-nav-link:hover { color: var(--ember-deep); }
.op-nav-cta { display: flex; gap: var(--s-3); align-items: center; }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-sans); font-size: 14px; font-weight: 500;
  letter-spacing: -0.005em;
  padding: 10px 20px; border-radius: var(--r-pill);
  border: 1px solid transparent; cursor: pointer;
  transition: all var(--dur-base) var(--ease);
  text-decoration: none; white-space: nowrap;
}
.btn-lg { padding: 14px 28px; font-size: 15px; }
.btn-sm { padding: 7px 14px; font-size: 13px; }

.btn-primary   { background: var(--ember); color: #fff; border-color: var(--ember); }
.btn-primary:hover   { background: var(--ember-deep); border-color: var(--ember-deep); transform: translateY(-1px); }
.btn-secondary { background: #fff; color: var(--ink-2); border-color: var(--ink-5); }
.btn-secondary:hover { border-color: var(--ink-3); background: var(--paper); }
.btn-ghost     { background: transparent; color: var(--ink-2); }
.btn-ghost:hover     { background: var(--paper-2); color: var(--ink); }
.btn-inverse   { background: var(--obsidian); color: #fff; border-color: var(--obsidian); }
.btn-inverse:hover   { background: var(--obsidian-2); }

/* On obsidian backgrounds */
.on-obsidian .btn-secondary { background: transparent; color: #fff; border-color: rgba(255,255,255,0.3); }
.on-obsidian .btn-secondary:hover { border-color: rgba(255,255,255,0.6); }
.on-obsidian .btn-ghost { color: rgba(255,255,255,0.8); }
.on-obsidian .btn-ghost:hover { background: rgba(255,255,255,0.06); color: #fff; }

/* ============================================================
   Section scaffolding
   ============================================================ */
.section { padding: var(--s-9) 0; }
.section-sm { padding: var(--s-7) 0; }
.section-lg { padding: calc(var(--s-9) + var(--s-5)) 0; }
.section.obsidian { background: var(--obsidian); color: #fff; }
.section.obsidian h1, .section.obsidian h2, .section.obsidian h3 { color: #fff; }
.section.obsidian p { color: rgba(255,255,255,0.76); }
.section.paper-2 { background: var(--paper-2); }

.hair-top { border-top: 1px solid var(--rule); }
.hair-top-ember { position: relative; }
.hair-top-ember::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--ember) 20%, var(--ember) 80%, transparent);
}

/* Eyebrow +1 ember chevron variant */
.eyebrow-ember { color: var(--ember-deep); }
.eyebrow-ember::before { background: var(--ember); opacity: 1; }

/* ============================================================
   Cards
   ============================================================ */
.card {
  position: relative;
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: var(--s-6);
  transition: all var(--dur-base) var(--ease);
}
.card:hover { box-shadow: var(--shadow-2); transform: translateY(-1px); }
.card h3 { margin-bottom: var(--s-3); font-size: 24px; }
.card p { font-size: 14px; color: var(--ink-3); margin-bottom: 0; }

/* Three Planes cards (categorical colored top-bar) */
.card-plane::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  border-radius: var(--r-md) var(--r-md) 0 0;
}
.card-plane.builder::before { background: var(--builder); }
.card-plane.runtime::before { background: var(--runtime); }
.card-plane.control::before { background: var(--control); }

.plane-label { font-family: var(--font-sans); font-size: 11px; font-weight: 500; letter-spacing: 0.16em; text-transform: uppercase; margin-bottom: var(--s-3); display: inline-block; }
.plane-label.builder { color: var(--builder); }
.plane-label.runtime { color: var(--runtime); }
.plane-label.control { color: var(--control); }

.card-flat { background: var(--paper); border: 1px solid var(--rule); border-radius: var(--r-md); padding: var(--s-5); }
.card-bordered-ember { border: 1px solid var(--ember); border-radius: var(--r-md); padding: var(--s-6); background: #fff; }

/* ============================================================
   Badges & chips
   ============================================================ */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: var(--r-pill);
  font-size: 11px; font-weight: 500; letter-spacing: 0.02em;
  border: 1px solid transparent;
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; }
.badge-ok     { background: var(--control-tint); color: var(--control); }
.badge-ok .dot{ background: var(--control); }
.badge-warn   { background: #FAEEDB; color: var(--caution); }
.badge-warn .dot { background: var(--caution); }
.badge-crit   { background: #F5DDD8; color: var(--critical); }
.badge-crit .dot { background: var(--critical); }
.badge-new    { background: var(--ember-tint); color: var(--ember-deep); }
.badge-beta   { background: #fff; color: var(--ink-3); border-color: var(--rule); }

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border: 1px solid var(--rule); border-radius: var(--r-pill);
  background: #fff; font-size: 12px; color: var(--ink-2);
}

/* ============================================================
   Form fields
   ============================================================ */
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 12px; color: var(--ink-3); font-weight: 500; }
.field input, .field select, .field textarea {
  font-family: inherit; font-size: 14px;
  padding: 10px 12px; border: 1px solid var(--rule); border-radius: var(--r-xs);
  background: #fff; color: var(--ink);
  transition: border-color var(--dur-base) var(--ease);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--ember); }

/* ============================================================
   Pull-quote
   ============================================================ */
.pullquote {
  font-family: var(--font-display); font-size: clamp(28px, 3.2vw, 44px);
  line-height: 1.15; color: var(--ink-2); letter-spacing: -0.015em;
  max-width: 22ch; text-wrap: balance;
}
.pullquote cite { display: block; margin-top: var(--s-5); font-family: var(--font-sans); font-size: 13px; color: var(--ink-4); font-style: normal; letter-spacing: 0.02em; }

/* ============================================================
   Stat
   ============================================================ */
.stat { }
.stat .num { font-family: var(--font-display); font-size: 56px; line-height: 1; color: var(--ink-2); letter-spacing: -0.02em; }
.stat .lab { font-size: 12px; color: var(--ink-3); margin-top: 10px; letter-spacing: 0.04em; text-transform: uppercase; font-weight: 500; }

/* ============================================================
   Footer
   ============================================================ */
.op-footer { background: var(--obsidian); color: rgba(255,255,255,0.72); padding: var(--s-9) 0 var(--s-6); }
.op-footer a { color: rgba(255,255,255,0.85); text-decoration: none; }
.op-footer a:hover { color: #fff; }
.op-footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: var(--s-6); padding-bottom: var(--s-7); border-bottom: 1px solid rgba(255,255,255,0.08); }
.op-footer h5 { font-family: var(--font-sans); font-size: 11px; font-weight: 500; letter-spacing: 0.16em; text-transform: uppercase; color: rgba(255,255,255,0.5); margin: 0 0 var(--s-4); }
.op-footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
.op-footer-meta { display: flex; justify-content: space-between; padding-top: var(--s-5); font-size: 12px; color: rgba(255,255,255,0.4); }

/* ============================================================
   Utility
   ============================================================ */
.muted { color: var(--ink-3); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-6); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-5); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s-5); }
.flex-between { display: flex; justify-content: space-between; align-items: center; gap: var(--s-5); }
.mt-6 { margin-top: var(--s-6); } .mt-7 { margin-top: var(--s-7); } .mt-8 { margin-top: var(--s-8); }
.mb-3 { margin-bottom: var(--s-3); } .mb-5 { margin-bottom: var(--s-5); } .mb-6 { margin-bottom: var(--s-6); }

/* Responsive collapse */
@media (max-width: 920px) {
  .op-nav-links, .op-nav-cta { display: none; }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .op-footer-grid { grid-template-columns: 1fr 1fr; }
}