/* ───────────────────────────────────────────────
   Finexa Blog — Bold & Colorful Theme
   ─────────────────────────────────────────────── */

/* ── Variables ── */
:root{
  --radius: 14px;
  --brand: #6f4af2;
  --brand-600: #5a38d4;
  --accent: #ff6b6b;
  --accent-2: #4ecdc4;
  --gradient: linear-gradient(135deg, #6f4af2, #ff6b6b);
  --gradient-subtle: linear-gradient(135deg, rgba(111,74,242,.08), rgba(255,107,107,.08));
  --text: #1e1e2e;
  --muted: #6b7280;
  --bg: #f5f6fa;
  --card: #ffffff;
  --border: #e2e4ec;
  --shadow: 0 4px 24px rgba(111,74,242,.06);
  --bs-body-bg: var(--bg);
  --bs-body-color: var(--text);
}

:root.dark{
  --text: #e4e4f0;
  --muted: #9b9bb4;
  --bg: #14152a;
  --card: #1e1f38;
  --border: #2d2e4a;
  --shadow: 0 4px 24px rgba(0,0,0,.25);
  --gradient-subtle: linear-gradient(135deg, rgba(111,74,242,.15), rgba(255,107,107,.12));
  --bs-body-bg: var(--bg);
  --bs-body-color: var(--text);
}

/* ── Base ── */
html, body{
  background: var(--bg);
  color: var(--text);
  font-family: "Cairo","Inter",system-ui,-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background .3s ease, color .3s ease;
}
p{ line-height: 1.85; margin: 0 0 1rem; }
h1,h2,h3,h4{ font-weight: 700; letter-spacing: .1px; }
h1{ font-size: clamp(28px, 4vw, 42px); }
h2{ font-size: clamp(22px, 2.5vw, 30px); }
h3{ font-size: clamp(18px, 2vw, 22px); }
small, .small{ color: var(--muted); }

a{ color: var(--brand); text-decoration: none; transition: color .2s ease; }
a:hover{ color: var(--brand-600); }

/* ── Navbar ── */
.blog-navbar{
  background: var(--card);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(16px) saturate(1.6);
  -webkit-backdrop-filter: blur(16px) saturate(1.6);
  transition: background .3s ease, box-shadow .3s ease;
}
.blog-navbar.scrolled{
  box-shadow: 0 2px 20px rgba(111,74,242,.08);
}
.blog-navbar .navbar-brand{ font-weight: 800; color: var(--text) !important; }
.blog-navbar .nav-link{
  color: var(--muted) !important;
  font-weight: 500;
  padding: .5rem .75rem !important;
  border-radius: 8px;
  transition: color .2s ease, background .2s ease;
}
.blog-navbar .nav-link:hover{
  color: var(--brand) !important;
  background: var(--gradient-subtle);
}
.blog-navbar .form-control{
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.blog-navbar .form-control:focus{
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(111,74,242,.12);
}
.blog-navbar .form-control::placeholder{ color: var(--muted); }

.logo-dot{
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--gradient);
  display: inline-block;
  box-shadow: 0 0 8px rgba(111,74,242,.4);
}

.border-top, .border-bottom{ border-color: var(--border) !important; }

/* ── Theme Toggle ── */
#themeToggle{
  border-radius: 10px;
  border-color: var(--border);
  color: var(--muted);
  transition: all .25s ease;
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0;
}
#themeToggle:hover{
  border-color: var(--brand);
  color: var(--brand);
  background: var(--gradient-subtle);
}

/* ── Hero Section ── */
.blog-hero{
  position: relative;
  background: var(--gradient);
  overflow: hidden;
  border-bottom: none !important;
}
.blog-hero::before{
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(600px 300px at 20% 80%, rgba(78,205,196,.3) 0%, transparent 70%),
    radial-gradient(500px 400px at 80% 20%, rgba(255,107,107,.25) 0%, transparent 70%);
  pointer-events: none;
  animation: heroShift 8s ease-in-out infinite alternate;
}
@keyframes heroShift{
  0%  { opacity: .7; transform: scale(1); }
  100%{ opacity: 1;  transform: scale(1.08); }
}
.blog-hero h1{ color: #fff; text-shadow: 0 2px 12px rgba(0,0,0,.15); }
.blog-hero p{ color: rgba(255,255,255,.85); }
.blog-hero .btn-hero{
  background: #fff;
  color: var(--brand);
  font-weight: 700;
  border: none;
  border-radius: 12px;
  padding: .65rem 1.5rem;
  box-shadow: 0 4px 16px rgba(0,0,0,.12);
  transition: transform .2s ease, box-shadow .2s ease;
}
.blog-hero .btn-hero:hover{
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,.18);
  color: var(--brand-600);
}

/* ── Cards ── */
.card-soft{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card-soft::before{
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity .25s ease;
}
.card-soft:hover{
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(111,74,242,.1);
  border-color: rgba(111,74,242,.2);
}
.card-soft:hover::before{ opacity: 1; }

/* ── Article Title ── */
.article-title a{ text-decoration: none; color: inherit; transition: color .2s ease; }
.article-title a:hover{ color: var(--brand); }

/* ── Reading Meta ── */
.reading-meta{
  color: var(--muted);
  font-size: .88rem;
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-wrap: wrap;
}
.reading-meta .bi{ color: var(--brand); font-size: .8rem; }

/* ── Tags ── */
.badge-tag{
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .3rem .75rem;
  font-size: .8rem;
  color: var(--muted);
  background: transparent;
  transition: all .2s ease;
  text-decoration: none;
}
.badge-tag:hover{
  border-color: var(--brand);
  color: #fff;
  background: var(--gradient);
}

/* ── Table of Contents ── */
.toc{
  position: sticky;
  top: 90px;
  border-radius: var(--radius);
}
.toc h3{ position: relative; padding-bottom: .5rem; }
.toc h3::after{
  content: '';
  position: absolute;
  bottom: 0; left: 0; width: 40px; height: 3px;
  border-radius: 3px;
  background: var(--gradient);
}
[dir="rtl"] .toc h3::after{ left: auto; right: 0; }
.toc a{
  display: block;
  padding: .35rem 0;
  padding-inline-start: .75rem;
  color: var(--muted);
  border-inline-start: 2px solid transparent;
  transition: all .2s ease;
}
.toc a.active,
.toc a:hover{
  color: var(--brand);
  border-inline-start-color: var(--brand);
}

/* ── Prose / Article Body ── */
.prose p{ max-width: 70ch; }
.prose img{
  max-width: 100%; height: auto;
  border-radius: 14px;
  border: 1px solid var(--border);
  box-shadow: 0 4px 20px rgba(0,0,0,.06);
}
.prose blockquote{
  border-inline-start: 4px solid transparent;
  border-image: var(--gradient) 1;
  padding: .75rem 1.25rem;
  background: var(--gradient-subtle);
  border-radius: 0 10px 10px 0;
  margin: 1.5rem 0;
}
[dir="rtl"] .prose blockquote{ border-radius: 10px 0 0 10px; }
.prose code{
  background: rgba(111,74,242,.08);
  color: var(--brand);
  padding: .2rem .45rem;
  border-radius: 6px;
  font-size: .9em;
}
.prose pre code{
  background: transparent;
  color: inherit;
  padding: 0;
}
.prose hr{
  border: none;
  height: 3px;
  background: var(--gradient);
  border-radius: 3px;
  opacity: .3;
  margin: 2rem 0;
}

/* ── Prev / Next Navigation ── */
.post-nav{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2rem;
}
.post-nav-link{
  display: flex;
  flex-direction: column;
  gap: .25rem;
  padding: 1rem 1.25rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  text-decoration: none;
  transition: all .25s ease;
}
.post-nav-link:hover{
  border-color: rgba(111,74,242,.25);
  box-shadow: 0 4px 16px rgba(111,74,242,.08);
  color: var(--brand);
}
.post-nav-label{ font-size: .78rem; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }
.post-nav-title{ font-weight: 600; }
.post-nav-link.next{ text-align: end; }

/* ── Code Blocks ── */
kbd{
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  padding: .15rem .35rem;
  border-radius: 6px;
  background: var(--card);
}
.hljs{
  background: var(--card) !important;
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 1.25rem !important;
}

/* ── Empty State ── */
.empty-state{
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--muted);
}
.empty-state .bi{
  font-size: 3rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  display: block;
}

/* ── Sidebar Section Headers ── */
.sidebar-heading{
  font-size: .85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--muted);
  margin-bottom: .75rem;
  padding-bottom: .5rem;
  position: relative;
}
.sidebar-heading::after{
  content: '';
  position: absolute;
  bottom: 0; left: 0; width: 32px; height: 3px;
  border-radius: 3px;
  background: var(--gradient);
}
[dir="rtl"] .sidebar-heading::after{ left: auto; right: 0; }

/* ── Footer ── */
.blog-footer{
  background: var(--card);
  border-top: 1px solid var(--border);
  position: relative;
}
.blog-footer::before{
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient);
}
.blog-footer a{
  color: var(--muted);
  transition: color .2s ease;
}
.blog-footer a:hover{ color: var(--brand); }

/* ── Scroll-in Animation ── */
@keyframes fadeInUp{
  from{ opacity: 0; transform: translateY(16px); }
  to  { opacity: 1; transform: translateY(0); }
}
.animate-in{
  animation: fadeInUp .45s ease both;
}
.animate-in:nth-child(2){ animation-delay: .08s; }
.animate-in:nth-child(3){ animation-delay: .16s; }
.animate-in:nth-child(4){ animation-delay: .24s; }
.animate-in:nth-child(5){ animation-delay: .32s; }
.animate-in:nth-child(6){ animation-delay: .40s; }

/* ── Utilities ── */
.gradient-text{
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}