/* =============================================================
   Cerebrum City — Documentation / Case Studies
   Cerebrum WordPress Theme  |  page-documentation.php
   Palette: Cyan (#0891b2 / #06b6d4 / #22d3ee) + Blue (#2d6fcf)
   Fonts: Barlow (body) + Poppins (headings)

   CONFLICT FIXES vs. default.css / theme globals:
   - All rules use high-specificity selectors or !important where
     the theme's base stylesheet overrides colour, font, spacing.
   - Background glows use position:absolute inside .doc-page
     (not fixed) to work inside the theme's scroll container.
   - Typography rules override theme h1/h2/p resets.
   ============================================================= */

/* ── Design Tokens ── */
:root {
  --navy:           #05091a;
  --glass-bg:       rgba(255,255,255,0.055);
  --glass-bg-h:     rgba(255,255,255,0.09);
  --glass-border:   rgba(255,255,255,0.10);
  --glass-border-h: rgba(255,255,255,0.20);
  --blur:           blur(10px);
  --blur-sm:        blur(12px);
  --cyan:           #0891b2;
  --cyan-mid:       #06b6d4;
  --cyan-lt:        #22d3ee;
  --cyan-xlt:       #67e8f9;
  --blue:           #2563eb;
  --blue-lt:        #60a5fa;
  --emerald:        #059669;
  --emerald-lt:     #34d399;
  --amber:          #d97706;
  --amber-lt:       #fbbf24;
  --info-bg:        rgba(37,99,235,0.07);
  --warn-bg:        rgba(217,119,6,0.07);
  --doc-white:      #f0f4ff;
  --doc-white-sec:  rgba(200,215,255,0.70);
  --doc-white-mute: rgba(160,185,230,0.42);
  --ff:             'Barlow', sans-serif;
  --ffh:            'Poppins', sans-serif;
  --sidebar:        256px;
  --ease:           0.22s cubic-bezier(.4, 0, .2, 1);
}

/* ── PAGE WRAPPER — forces dark background, overrides theme body/outer ── */
/* The theme sets a light bg on body + .outer/.viewport.
   We target .doc-page and all children to guarantee our dark context. */
.doc-page {
  position: relative;
  z-index: 1;
  display: flex !important;
  min-height: 100vh;
  background: var(--navy) !important;
  color: var(--doc-white) !important;
  font-family: var(--ff) !important;
  line-height: 1.65;
  box-sizing: border-box;
  /* isolate from theme scroll container stacking context */
  isolation: isolate;
}

/* ── Background atmosphere
   Uses position:absolute (not fixed) so it works inside
   the theme's .viewport / #scroll-container transform context. ── */
.doc-bg-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.doc-bg-glow::before {
  content: '';
  position: absolute;
  top: -5%; left: -8%; width: 55%; height: 60%;
  background: radial-gradient(ellipse, rgba(8,145,178,0.16) 0%, transparent 65%);
}
.doc-bg-glow::after {
  content: '';
  position: absolute;
  bottom: 5%; right: -5%; width: 50%; height: 50%;
  background: radial-gradient(ellipse, rgba(37,99,235,0.11) 0%, transparent 65%);
}
.doc-bg-dots {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: radial-gradient(rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, black 30%, transparent 100%);
}

/* ── Typography overrides — fight theme h1/h2/p resets ── */
.doc-page h1,
.doc-page h2,
.doc-page h3,
.doc-page h4,
.doc-page h5,
.doc-page h6 {
  font-family: var(--ffh) !important;
  color: var(--doc-white) !important;
  line-height: 1.15 !important;
  margin: 0 !important;
  padding: 0 !important;
}
.doc-page p,
.doc-page li,
.doc-page span,
.doc-page div {
  box-sizing: border-box;
}
.doc-page a {
  color: var(--cyan-lt);
  text-decoration: none;
  transition: color var(--ease);
}
.doc-page a:hover { color: var(--cyan-xlt); }

/* ── Sidebar ── */
.doc-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  width: var(--sidebar);
  flex-shrink: 0;
  overflow-y: auto;
  padding: 2.5rem 0 2rem 1.5rem;
  border-right: 1px solid var(--glass-border);
  background: rgba(5,9,26,0.6) !important;
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  scrollbar-width: thin;
  scrollbar-color: rgba(8,145,178,0.25) transparent;
  z-index: 10;
}
.doc-sidebar::-webkit-scrollbar { width: 3px; }
.doc-sidebar::-webkit-scrollbar-thumb {
  background: rgba(8,145,178,0.25); border-radius: 3px;
}

.sb-group { margin-bottom: 2rem; }

.sb-label {
  display: block;
  font-family: var(--ffh) !important;
  font-size: 9.5px !important; font-weight: 600 !important;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--doc-white-mute) !important;
  padding: 0 10px;
  margin-bottom: 6px !important;
}

.sb-link {
  display: flex !important; align-items: center; gap: 8px;
  padding: 7px 10px !important; border-radius: 6px;
  font-size: 13.5px !important; font-weight: 400 !important;
  color: var(--doc-white-sec) !important;
  text-decoration: none !important;
  transition: var(--ease);
  position: relative; cursor: pointer;
  font-family: var(--ff) !important;
  line-height: 1.4 !important;
  background: transparent !important;
}
.sb-link:hover {
  color: var(--doc-white) !important;
  background: var(--glass-bg) !important;
}
.sb-link.active {
  color: var(--cyan-lt) !important;
  background: rgba(8,145,178,0.12) !important;
}
.sb-link.active::before {
  content: '';
  position: absolute; left: 0; top: 18%; bottom: 18%;
  width: 2px;
  background: var(--cyan);
  border-radius: 2px;
}

.sb-badge {
  margin-left: auto;
  font-family: var(--ffh) !important;
  font-size: 10px !important; font-weight: 600 !important;
  padding: 2px 7px; border-radius: 4px;
  letter-spacing: .04em;
  line-height: 1.4 !important;
}
.sb-badge-new  { background: rgba(8,145,178,.14);  color: var(--cyan-lt) !important; }
.sb-badge-beta { background: rgba(245,158,11,.12); color: var(--amber-lt) !important; }
.sb-badge-ent  { background: rgba(8,145,178,.12);  color: var(--cyan-lt) !important; }

/* ── Main content ── */
.doc-main {
  flex: 1;
  min-width: 0;
  padding: 3.5rem 3rem 7rem;
  position: relative;
  z-index: 1;
}
.doc-wrap { max-width: 820px; margin: 0 auto; }

/* ── Hero ── */
.doc-hero { margin-bottom: 3.5rem; animation: docFadeUp .55s ease both; }

.doc-eyebrow {
  display: inline-flex !important; align-items: center; gap: 8px;
  font-family: var(--ffh) !important;
  font-size: 11px !important; font-weight: 600 !important;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--cyan-lt) !important;
  margin-bottom: 1.1rem !important;
  background: none !important;
}
.doc-eyebrow::before {
  content: '';
  width: 22px; height: 1px;
  background: var(--cyan-lt); opacity: .6;
  display: inline-block;
}

.doc-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem) !important;
  font-weight: 800 !important;
  line-height: 1.1 !important;
  letter-spacing: -.02em !important;
  color: var(--doc-white) !important;
  margin-bottom: 1.1rem !important;
}
.doc-hero h1 span {
  background: linear-gradient(110deg, var(--cyan-lt), var(--blue-lt)) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
  color: transparent !important;
}

.doc-hero-sub {
  font-size: 16px !important; font-weight: 300 !important;
  color: var(--doc-white-sec) !important;
  max-width: 580px; line-height: 1.75 !important;
  margin-bottom: 2rem !important;
  font-family: var(--ff) !important;
}

.doc-hero-meta {
  display: flex; align-items: center; gap: 2rem; flex-wrap: wrap;
  padding-top: 1.5rem;
  border-top: 1px solid var(--glass-border);
  font-size: 13px; color: var(--doc-white-mute);
  font-family: var(--ff) !important;
}
.doc-hero-meta-item { display: flex; align-items: center; gap: 6px; }

/* ── Quick-access row ── */
.doc-quick {
  display: grid !important;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--glass-border);
  border-radius: 20px; overflow: hidden;
  background: var(--glass-border);
  gap: 1px;
  margin-bottom: 3.5rem;
  animation: docFadeUp .55s .08s ease both;
}
.doc-qcard {
  background: rgb(10 21 51 / 53%) !important;
  backdrop-filter: var(--blur-sm);
  padding: 1.5rem 1.25rem !important;
  text-decoration: none !important; display: block;
  transition: var(--ease);
  border: none !important;
}
.doc-qcard:hover { background: var(--glass-bg-h) !important; }
.doc-qcard-ico {
  width: 38px; height: 38px; border-radius: 9px;
  margin-bottom: .9rem;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
}
.doc-qcard-title {
  font-family: var(--ffh) !important;
  font-size: 14px !important; font-weight: 600 !important;
  color: var(--doc-white) !important; margin-bottom: 4px !important;
}
.doc-qcard-desc {
  font-size: 12.5px !important;
  color: var(--doc-white-mute) !important; line-height: 1.5 !important;
  font-family: var(--ff) !important;
}

/* ── Section headings ── */
.doc-sec-tag {
  font-family: var(--ffh) !important;
  font-size: 10.5px !important; font-weight: 600 !important;
  letter-spacing: .15em; text-transform: uppercase;
  color: var(--doc-white-mute) !important;
  margin-bottom: .75rem !important;
  display: block;
}
.doc-sec-title {
  font-size: 1.45rem !important; font-weight: 700 !important;
  color: var(--doc-white) !important; letter-spacing: -.02em;
  margin-bottom: 1.5rem !important;
}

/* ── Filter chips ── */
.doc-filter {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-bottom: 1.75rem;
}
.doc-chip {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 6px 14px; border-radius: 30px;
  font-size: 12.5px !important; font-weight: 500 !important;
  font-family: var(--ff) !important;
  background: var(--glass-bg) !important;
  border: 1px solid var(--glass-border) !important;
  color: var(--doc-white-sec) !important;
  cursor: pointer; user-select: none;
  transition: var(--ease);
  line-height: 1.4 !important;
}
.doc-chip:hover {
  background: var(--glass-bg-h) !important;
  border-color: var(--glass-border-h) !important;
  color: var(--doc-white) !important;
}
.doc-chip.active {
  background: rgba(8,145,178,0.14) !important;
  border-color: rgba(8,145,178,0.45) !important;
  color: var(--cyan-lt) !important;
}

/* ── Case Study cards ── */
.doc-case-grid {
  display: grid; grid-template-columns: 1fr;
  gap: 28px;
  margin-bottom: 3.5rem;
  animation: docFadeUp .55s .16s ease both;
}

.doc-cwrap { display: flex !important; flex-direction: column; }

/* Tag above card */
.doc-ctag {
  display: inline-flex !important; align-items: center; gap: 6px;
  align-self: flex-start;
  font-family: var(--ffh) !important;
  font-size: 10px !important; font-weight: 700 !important;
  letter-spacing: .1em; text-transform: uppercase;
  padding: 5px 14px !important;
  border-radius: 8px 8px 0 0;
  border: 1px solid; border-bottom: none !important;
  line-height: 1.4 !important;
  margin: 0 !important;
}
.doc-ctag-v { border-color: rgba(8,145,178,.45) !important;  color: var(--cyan-lt) !important;    background: rgba(8,145,178,.10) !important; }
.doc-ctag-c { border-color: rgba(8,145,178,.45) !important;  color: var(--cyan-lt) !important;    background: rgba(8,145,178,.10) !important; }
.doc-ctag-e { border-color: rgba(5,150,105,.4) !important;   color: var(--emerald-lt) !important; background: rgba(5,150,105,.10) !important; }
.doc-ctag-a { border-color: rgba(217,119,6,.4) !important;   color: var(--amber-lt) !important;   background: rgba(217,119,6,.10) !important; }

/* Glass card */
.doc-ccard {
  display: flex !important; flex-direction: column;
  background: var(--glass-bg) !important;
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border) !important;
  border-radius: 0 16px 16px 16px !important;
  overflow: hidden;
  text-decoration: none !important;
  transition: var(--ease);
  position: relative;
  color: var(--doc-white) !important;
}
.doc-ccard::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.025) 0%, transparent 55%);
  pointer-events: none; z-index: 0;
}
a.doc-ccard:hover {
  background: var(--glass-bg-h) !important;
  border-color: var(--glass-border-h) !important;
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0,0,0,.35), 0 0 28px rgba(8,145,178,.14);
}

.doc-cstripe { height: 4px !important; width: 100%; flex-shrink: 0; position: relative; z-index: 1; }
.stripe-cyan    { background: linear-gradient(90deg, var(--cyan), var(--cyan-mid)) !important; }
.stripe-emerald { background: linear-gradient(90deg, var(--emerald), var(--emerald-lt)) !important; }
.stripe-amber   { background: linear-gradient(90deg, var(--amber), var(--amber-lt)) !important; }
.stripe-blue    { background: linear-gradient(90deg, var(--blue), var(--blue-lt)) !important; }

/* 2-column body */
.doc-cbody {
  display: grid !important;
  grid-template-columns: 1fr 260px;
  position: relative; z-index: 1;
}
.doc-cbody-left  { padding: 1.5rem 1.75rem; min-width: 0; }
.doc-cbody-right {
  padding: 1.5rem 1.4rem;
  border-left: 1px solid var(--glass-border);
  display: flex; align-items: flex-start;
}

.doc-carro {
  float: right; margin-left: 1rem; margin-top: 2px;
  flex-shrink: 0;
  width: 28px; height: 28px; border-radius: 7px;
  background: var(--glass-bg) !important;
  border: 1px solid var(--glass-border) !important;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 13px; color: var(--doc-white-mute) !important;
  transition: var(--ease);
  line-height: 1 !important;
}
a.doc-ccard:hover .doc-carro {
  background: var(--cyan) !important;
  border-color: var(--cyan) !important;
  color: #fff !important;
}

.doc-ctitle {
  font-size: 1rem !important; font-weight: 700 !important;
  color: var(--doc-white) !important;
  line-height: 1.3 !important; letter-spacing: -.02em;
  margin-bottom: .6rem !important;
}
.doc-cdesc {
  font-size: 13px !important; font-weight: 300 !important;
  color: var(--doc-white-sec) !important; line-height: 1.7 !important;
  font-family: var(--ff) !important;
  margin: 0 !important;
}

/* Pull quote */
.doc-cquote {
  font-size: 12.5px !important; font-weight: 400 !important;
  font-style: italic;
  color: var(--doc-white-sec) !important; line-height: 1.65 !important;
  border-left: 2px solid; padding-left: .85rem;
  font-family: var(--ff) !important;
  margin: 0 !important;
}
.doc-cquote cite {
  display: block; margin-top: .65rem !important;
  font-style: normal; font-size: 11px !important; font-weight: 600 !important;
  opacity: .58; letter-spacing: .01em;
  color: var(--doc-white-sec) !important;
}
.qborder-cyan    { border-color: rgba(8,145,178,.45); }
.qborder-emerald { border-color: rgba(5,150,105,.4); }
.qborder-amber   { border-color: rgba(217,119,6,.4); }
.qborder-blue    { border-color: rgba(37,99,235,.4); }

/* Stats row */
.doc-stats {
  display: flex !important; align-items: stretch;
  border-top: 1px solid var(--glass-border);
  position: relative; z-index: 1;
}
.doc-stat {
  flex: 1; display: flex !important; flex-direction: column; gap: 3px;
  padding: 1rem 1.5rem;
  border-right: 1px solid var(--glass-border);
}
.doc-stat:last-child { border-right: none; }
.doc-stat-val {
  font-family: var(--ffh) !important;
  font-size: .92rem !important; font-weight: 700 !important;
  line-height: 1.2 !important; display: block;
}
.doc-stat-lbl {
  font-size: 11px !important;
  color: var(--doc-white-mute) !important;
  letter-spacing: .02em; line-height: 1.4 !important;
  display: block;
  font-family: var(--ff) !important;
}
.val-cyan    { color: var(--cyan-lt) !important; }
.val-emerald { color: var(--emerald-lt) !important; }
.val-amber   { color: var(--amber-lt) !important; }
.val-blue    { color: var(--blue-lt) !important; }

/* Card footer */
.doc-cfoot {
  padding: .8rem 1.75rem;
  border-top: 1px solid var(--glass-border);
  position: relative; z-index: 1;
}

/* PDF chip */
.doc-pdf-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px; border-radius: 6px;
  font-size: 11.5px !important; font-weight: 500 !important;
  font-family: var(--ffh) !important;
  background: rgba(255,255,255,.05) !important;
  border: 1px solid var(--glass-border) !important;
  color: var(--doc-white-mute) !important;
  text-decoration: none;
  transition: var(--ease);
  cursor: pointer;
}
.doc-pdf-chip:hover {
  background: rgba(255,255,255,.09) !important;
  color: var(--doc-white) !important;
  border-color: var(--glass-border-h) !important;
}
.doc-pdf-chip svg { opacity: .6; }

/* ── Callouts ── */
.doc-callout {
  display: flex; gap: 1rem;
  padding: 1.2rem 1.5rem;
  border-radius: 14px;
  margin-bottom: 2.25rem;
  border-left: 3px solid;
  font-size: 13.5px !important; font-weight: 300 !important;
  color: var(--doc-white-sec) !important;
  line-height: 1.65 !important;
  font-family: var(--ff) !important;
}
.doc-callout strong { color: var(--doc-white) !important; font-weight: 600 !important; }
.doc-callout a { color: var(--cyan-lt) !important; text-decoration: none; }
.doc-callout a:hover { text-decoration: underline; }
.doc-callout-ico { font-size: 15px; flex-shrink: 0; margin-top: 1px; }
.doc-callout-info { background: var(--info-bg) !important; border-color: var(--blue) !important; }
.doc-callout-warn { background: var(--warn-bg) !important; border-color: var(--amber) !important; }

/* ── Architecture block ── */
.doc-arch {
  background: var(--glass-bg) !important;
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border) !important;
  border-radius: 20px;
  padding: 2rem;
  margin-bottom: 3.5rem;
  position: relative; overflow: hidden;
}
.doc-arch::after {
  content: ''; position: absolute;
  top: 0; right: 0; width: 45%; height: 100%;
  background: radial-gradient(ellipse at top right, rgba(8,145,178,.07), transparent 60%);
  pointer-events: none;
}
.doc-arch-title {
  font-size: 1rem !important; font-weight: 700 !important;
  color: var(--doc-white) !important; margin-bottom: .3rem !important;
}
.doc-arch-sub {
  font-size: 13px !important; font-weight: 300 !important;
  color: var(--doc-white-mute) !important; margin-bottom: 1.6rem !important;
  font-family: var(--ff) !important;
}

/* ── CTA strip ── */
.doc-cta {
  background: var(--glass-bg) !important;
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border) !important;
  border-radius: 20px;
  padding: 2.5rem 2rem;
  display: flex !important; align-items: center;
  justify-content: space-between;
  gap: 2rem; flex-wrap: wrap;
}
.doc-cta h3 {
  font-size: 1.3rem !important; font-weight: 700 !important;
  color: var(--doc-white) !important;
  margin-bottom: .3rem !important; letter-spacing: -.02em;
}
.doc-cta p {
  font-size: 14px !important; font-weight: 300 !important;
  color: var(--doc-white-sec) !important;
  margin: 0 !important;
  font-family: var(--ff) !important;
}

.doc-btn-primary {
  display: inline-flex !important; align-items: center; gap: 8px;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--blue) 100%) !important;
  color: #fff !important;
  font-family: var(--ffh) !important; font-weight: 600 !important;
  font-size: 13px !important;
  letter-spacing: .04em; text-transform: uppercase;
  padding: 11px 24px !important; border-radius: 7px;
  text-decoration: none !important;
  transition: opacity var(--ease); white-space: nowrap;
  border: none !important;
  line-height: 1.4 !important;
}
.doc-btn-primary:hover { opacity: .88; color: #fff !important; }

.doc-btn-secondary {
  display: inline-flex !important; align-items: center; gap: 8px;
  background: var(--glass-bg) !important;
  border: 1px solid var(--glass-border) !important;
  color: var(--doc-white-sec) !important;
  font-family: var(--ffh) !important; font-weight: 500 !important;
  font-size: 13px !important;
  padding: 11px 22px !important; border-radius: 7px;
  text-decoration: none !important;
  transition: var(--ease);
  line-height: 1.4 !important;
}
.doc-btn-secondary:hover {
  background: var(--glass-bg-h) !important;
  border-color: var(--glass-border-h) !important;
  color: var(--doc-white) !important;
}

/* ── Right TOC ── */
.doc-toc {
  position: sticky; top: 2rem;
  width: 190px; flex-shrink: 0;
  padding: 0 0 0 1.5rem;
  display: none;
  align-self: flex-start;
}
@media (min-width: 1280px) { .doc-toc { display: block; } }
.doc-toc-head {
  font-family: var(--ffh) !important;
  font-size: 9.5px !important; font-weight: 600 !important;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--doc-white-mute) !important; margin-bottom: .7rem !important;
  display: block;
}
.doc-toc-link {
  display: block; font-size: 12px !important;
  color: var(--doc-white-mute) !important; text-decoration: none !important;
  padding: 4px 0 4px 10px !important;
  border-left: 1px solid var(--glass-border);
  transition: var(--ease); line-height: 1.45 !important;
  margin-bottom: 3px;
  font-family: var(--ff) !important;
}
.doc-toc-link:hover,
.doc-toc-link.active {
  color: var(--cyan-lt) !important;
  border-color: var(--cyan) !important;
}

/* ── Responsive ── */
@media (max-width: 960px) {
  .doc-sidebar     { display: none !important; }
  .doc-main        { padding: 2rem 1.25rem 5rem; }
  .doc-quick       { grid-template-columns: repeat(2, 1fr) !important; }
  .doc-cbody       { grid-template-columns: 1fr !important; }
  .doc-cbody-right { border-left: none; border-top: 1px solid var(--glass-border); }
}
@media (max-width: 600px) {
  .doc-quick  { grid-template-columns: 1fr 1fr !important; }
  .doc-stats  { flex-direction: column !important; }
  .doc-stat   { border-right: none; border-bottom: 1px solid var(--glass-border); }
}

/* ── Animations ── */
@keyframes docFadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}


/* ── Integration with theme get_header() ────────────────────────────
   get_header() renders .navbar correctly. We only need two things:
   1. Force dark background (theme body.inner uses a light --maincolor)
   2. Push .doc-page below the theme's fixed navbar (~72px)          ── */
html, body {
  background: #05091a !important;
  margin: 0 !important;
  padding: 0 !important;
}
.doc-page {
  padding-top: 80px !important;  /* clear the theme's fixed .navbar */
}