/* ==========================================================================
   Chalukya Tiles — USER_GUIDE.html styles (standalone handbook)
   ========================================================================== */

:root {
  --ug-navy: #002147;
  --ug-navy-2: #143064;
  --ug-blue: #2f7de1;
  --ug-blue-soft: rgba(47, 125, 225, 0.12);
  --ug-text: #0a2540;
  --ug-muted: #6b7c93;
  --ug-bg: #f4f8fd;
  --ug-card: #ffffff;
  --ug-border: rgba(11, 31, 74, 0.1);
  --ug-radius: 12px;
  --ug-font: "Inter", "Poppins", system-ui, sans-serif;
  --ug-display: "Poppins", "Inter", system-ui, sans-serif;
  --ug-code-bg: #0f1b33;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--ug-font);
  color: var(--ug-text);
  background: var(--ug-bg);
  line-height: 1.65;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--ug-blue);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code,
kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
}

code {
  background: var(--ug-blue-soft);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

kbd {
  background: #e8eef7;
  border: 1px solid var(--ug-border);
  border-radius: 4px;
  padding: 0.05em 0.4em;
}

.ug-wrap {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

/* Header */
.ug-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--ug-border);
}

.ug-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
}

.ug-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.ug-brand img {
  width: 160px;
  max-width: 42vw;
  height: auto;
  background: transparent;
  padding: 0;
  border-radius: 0;
  filter: none;
}

.ug-brand strong {
  display: block;
  font-family: var(--ug-display);
  font-size: 0.95rem;
}

.ug-brand span {
  display: block;
  color: var(--ug-muted);
  font-size: 0.78rem;
}

.ug-header__links {
  display: none;
  gap: 1rem;
  font-size: 0.88rem;
  font-weight: 500;
}

@media (min-width: 900px) {
  .ug-header__links {
    display: flex;
  }
}

/* Hero */
.ug-hero {
  background: linear-gradient(145deg, var(--ug-navy) 0%, var(--ug-navy-2) 55%, #1a4a8c 100%);
  color: #fff;
  padding: 2.5rem 0 2.75rem;
}

.ug-eyebrow {
  margin: 0 0 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  opacity: 0.85;
}

.ug-hero h1 {
  font-family: var(--ug-display);
  font-size: clamp(1.6rem, 3vw, 2.35rem);
  line-height: 1.2;
  margin: 0 0 0.85rem;
  max-width: 18ch;
}

.ug-lead {
  margin: 0 0 1.1rem;
  max-width: 62ch;
  opacity: 0.92;
  font-size: 1.02rem;
}

.ug-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1rem;
}

.ug-badges span {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 0.28rem 0.7rem;
  font-size: 0.78rem;
  font-weight: 500;
}

.ug-path {
  margin: 0.35rem 0 0;
  font-size: 0.88rem;
  opacity: 0.9;
}

.ug-path code {
  background: rgba(0, 0, 0, 0.25);
  color: #e8f1ff;
}

/* Layout */
.ug-layout {
  display: grid;
  gap: 1.5rem;
  padding: 1.75rem 0 3rem;
}

@media (min-width: 960px) {
  .ug-layout {
    grid-template-columns: 240px 1fr;
    align-items: start;
  }
}

.ug-toc {
  background: var(--ug-card);
  border: 1px solid var(--ug-border);
  border-radius: var(--ug-radius);
  padding: 1rem 1.1rem;
  position: sticky;
  top: 4.5rem;
  max-height: calc(100vh - 5.5rem);
  overflow: auto;
}

.ug-toc__title {
  margin: 0 0 0.6rem;
  font-family: var(--ug-display);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ug-muted);
}

.ug-toc ol {
  margin: 0;
  padding-left: 1.15rem;
  font-size: 0.88rem;
}

.ug-toc li {
  margin: 0.35rem 0;
}

.ug-toc a {
  color: var(--ug-text);
}

.ug-toc a:hover {
  color: var(--ug-blue);
}

.ug-main section {
  background: var(--ug-card);
  border: 1px solid var(--ug-border);
  border-radius: var(--ug-radius);
  padding: 1.35rem 1.4rem 1.5rem;
  margin-bottom: 1.1rem;
  box-shadow: 0 8px 24px rgba(11, 31, 74, 0.04);
  scroll-margin-top: 5rem;
}

.ug-main h2 {
  font-family: var(--ug-display);
  font-size: 1.35rem;
  margin: 0 0 0.85rem;
  padding-bottom: 0.55rem;
  border-bottom: 2px solid var(--ug-blue-soft);
}

.ug-main h3 {
  font-family: var(--ug-display);
  font-size: 1.05rem;
  margin: 1.25rem 0 0.55rem;
  color: var(--ug-navy);
}

.ug-main p,
.ug-main li {
  color: #243b63;
}

.ug-main ul,
.ug-main ol {
  padding-left: 1.25rem;
}

.ug-steps li {
  margin: 0.4rem 0;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 0.75rem 0 0.25rem;
}

th,
td {
  text-align: left;
  padding: 0.6rem 0.55rem;
  border-bottom: 1px solid var(--ug-border);
  vertical-align: top;
}

th {
  color: var(--ug-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

/* Cards */
.ug-cards {
  display: grid;
  gap: 0.85rem;
  margin: 0.85rem 0;
}

@media (min-width: 700px) {
  .ug-cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .ug-cards article:nth-child(4) {
    grid-column: span 1;
  }
}

.ug-cards article {
  background: var(--ug-bg);
  border: 1px solid var(--ug-border);
  border-radius: 10px;
  padding: 0.9rem 1rem;
}

.ug-cards h3 {
  margin: 0 0 0.35rem;
  font-size: 0.98rem;
}

.ug-cards p {
  margin: 0;
  font-size: 0.9rem;
}

/* Code / diagrams */
.ug-code,
.ug-diagram {
  background: var(--ug-code-bg);
  color: #e7eefc;
  border-radius: 10px;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.55;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.ug-code code,
.ug-diagram code {
  background: transparent;
  color: inherit;
  padding: 0;
  white-space: pre;
}

.ug-note {
  background: #eef5ff;
  border-left: 3px solid var(--ug-blue);
  padding: 0.65rem 0.85rem;
  border-radius: 0 8px 8px 0;
  font-size: 0.92rem;
}

.ug-callout {
  background: linear-gradient(135deg, #143064, #1a4a8c);
  color: #fff;
  border-radius: 10px;
  padding: 1rem 1.1rem;
  margin-top: 0.85rem;
  font-size: 0.95rem;
}

.ug-callout code {
  background: rgba(0, 0, 0, 0.25);
  color: #fff;
}

.ug-footer {
  margin-top: 0.5rem;
  padding: 1.25rem 0 0.5rem;
  color: var(--ug-muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--ug-border);
}

.ug-footer p {
  margin: 0;
}

@media print {
  .ug-header,
  .ug-toc {
    position: static;
  }

  .ug-layout {
    display: block;
  }

  .ug-main section {
    break-inside: avoid;
    box-shadow: none;
  }
}