/* ============================================================
   TEMPLATE TUTORIAL – OBOTZONE
   Global style untuk semua halaman tutorial
   ============================================================ */

:root {
  --bg: #020617;
  --bg-top: #1e293b;
  --card: #0f172a;
  --accent: #38bdf8;
  --accent-strong: #0ea5e9;
  --accent-soft: rgba(56, 189, 248, 0.12);
  --text: #e5e7eb;
  --muted: #94a3b8;
  --radius-lg: 18px;
  --radius-md: 12px;
  --border: rgba(148, 163, 184, 0.25);
  --shadow: 0 18px 45px rgba(0, 0, 0, 0.45);
}

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

body {
  font-family: system-ui, sans-serif;
  background: radial-gradient(circle at top, var(--bg-top) 0, var(--bg) 50%);
  color: var(--text);
  line-height: 1.65;
  padding: 24px 16px 40px;
  display: flex;
  justify-content: center;
}

.page {
  width: 100%;
  max-width: 1080px;
}

/* ======================
   HEADER
====================== */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 22px;
  flex-wrap: wrap;
  gap: 12px;
}

.brand {
  display: flex;
  gap: 10px;
  align-items: center;
}

.brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 20%, #38bdf8, #0ea5e9 45%, #0369a1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  color: #e0f2fe;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25);
}

.brand-text-main {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: .03em;
}

.brand-text-sub {
  font-size: 11px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--muted);
}

.tutorial-tag {
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  background: rgba(15,23,42,0.6);
}

.tutorial-tag .badge {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 11px;
  font-weight: 600;
}

/* ======================
   MAIN LAYOUT
====================== */
.layout {
  display: grid;
  grid-template-columns: 1.8fr 0.9fr;
  gap: 24px;
}
@media(max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
}

/* ======================
   LEFT CONTENT PANEL
====================== */
.card-main {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 26px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.breadcrumb {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 12px;
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.pill {
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(15,23,42,0.9);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(56,189,248,0.2);
}

h1 {
  font-size: 26px;
  margin-bottom: 10px;
}

.subtitle {
  font-size: 14px;
  color: var(--muted);
  max-width: 600px;
  margin-bottom: 20px;
}

/* ======================
   CONTENT ARTICLE
====================== */
.content {
  background: rgba(15,23,42,0.92);
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(148,163,184,0.18);
  font-size: 14px;
}

.content h2 {
  font-size: 17px;
  margin-top: 16px;
  margin-bottom: 6px;
}

.content ul {
  margin: 6px 0 12px 20px;
}

.content li {
  margin-bottom: 5px;
}

.highlight {
  margin: 12px 0;
  padding: 12px;
  background: rgba(56,189,248,0.08);
  border-left: 3px solid var(--accent-strong);
  border-radius: var(--radius-md);
  font-size: 13px;
}

/* ======================
   SIDEBAR
====================== */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.box {
  background: rgba(15,23,42,0.92);
  border-radius: var(--radius-md);
  border: 1px solid rgba(148,163,184,0.18);
  padding: 16px;
  font-size: 13px;
}

.box-title {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .16em;
  margin-bottom: 8px;
  color: var(--muted);
}

.toc ul {
  list-style: none;
}

.toc li {
  margin-bottom: 6px;
}

.toc a {
  color: var(--text);
  text-decoration: none;
}

/* ======================
   FOOTER NAVIGATION
====================== */
.footer-nav {
  margin-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  font-size: 13px;
  gap: 10px;
}

.btn-next {
  padding: 6px 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent-strong), #22c55e);
  color: #0b1120;
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 10px 28px rgba(34,197,94,0.35);
}