@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --primary: #0052FF;
  --primary-hover: #0047E1;
  --primary-active: #003FCC;
  --light-blue: #4C8DFF;
  --soft-blue: #E8F0FF;
  --deep-navy: #001A72;
  --white: #FFFFFF;
  --off-white: #F8F9FB;
  --light-gray: #EEF1F5;
  --medium-gray: #B0B7C3;
  --slate-gray: #5B616E;
  --dark-gray: #2A2E35;
  --near-black: #0A0B0D;
  --success: #16C784;
  --success-hover: #12B374;
  --soft-green: #E9FFF5;
  --warning: #F5A524;
  --soft-orange: #FFF5E5;
  --error: #EA3943;
  --soft-red: #FFF0F1;
  --dark-bg: #0D1117;
  --dark-card: #161B22;
  --dark-border: #2D333B;
  --dark-text: #F0F6FC;
  --dark-text-secondary: #8B949E;
  --dark-accent: #3B82F6;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0,0,0,0.32);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.18);
  --transition: all 0.2s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--dark-bg);
  color: var(--dark-text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: var(--light-blue); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary); }

/* ── NAVBAR ── */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(13,17,23,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--dark-border);
  padding: 0 2rem;
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}

.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.3rem; font-weight: 800; color: var(--dark-text);
  letter-spacing: -0.5px;
}

.nav-logo .logo-icon {
  width: 36px; height: 36px;
  background: var(--primary);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
}

.nav-logo span { color: var(--primary); }

.nav-links { display: flex; align-items: center; gap: 1.5rem; }
.nav-links a {
  color: var(--dark-text-secondary);
  font-size: 0.9rem; font-weight: 500;
  padding: 6px 12px; border-radius: var(--radius-sm);
}
.nav-links a:hover { color: var(--dark-text); background: var(--dark-card); }
.nav-links a.active { color: var(--primary); }

.nav-btn {
  background: var(--primary);
  color: var(--white) !important;
  padding: 8px 18px !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 600 !important;
}
.nav-btn:hover { background: var(--primary-hover) !important; color: var(--white) !important; }

/* ── HERO ── */
.hero {
  padding: 80px 2rem 60px;
  text-align: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(0,82,255,0.18) 0%, transparent 70%);
}

.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(0,82,255,0.12);
  border: 1px solid rgba(0,82,255,0.3);
  color: var(--light-blue);
  font-size: 0.8rem; font-weight: 600;
  padding: 6px 14px; border-radius: 50px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800; line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 1rem;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--primary), var(--light-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.1rem; color: var(--dark-text-secondary);
  max-width: 560px; margin: 0 auto 2.5rem;
}

/* ── SEARCH ── */
.search-wrap {
  max-width: 600px; margin: 0 auto 3rem;
  position: relative;
}

.search-wrap input {
  width: 100%;
  background: var(--dark-card);
  border: 1.5px solid var(--dark-border);
  color: var(--dark-text);
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  padding: 16px 56px 16px 50px;
  border-radius: 50px;
  outline: none;
  transition: var(--transition);
}

.search-wrap input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,82,255,0.15); }
.search-wrap input::placeholder { color: var(--dark-text-secondary); }

.search-icon {
  position: absolute; left: 18px; top: 50%; transform: translateY(-50%);
  color: var(--dark-text-secondary); font-size: 1.1rem;
}

.search-btn {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  background: var(--primary); color: var(--white);
  border: none; border-radius: 50px;
  padding: 8px 20px; font-weight: 600; font-size: 0.9rem;
  cursor: pointer; transition: var(--transition);
}
.search-btn:hover { background: var(--primary-hover); }

/* ── CARDS & GRID ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

.section { padding: 60px 0; }
.section-title {
  font-size: 1.6rem; font-weight: 800;
  margin-bottom: 0.5rem; letter-spacing: -0.5px;
}
.section-sub { color: var(--dark-text-secondary); margin-bottom: 2.5rem; font-size: 0.95rem; }

.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.25rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.25rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 1.25rem; }

.card {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: var(--transition);
  cursor: pointer;
}
.card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(0,82,255,0.15);
}

.card-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; margin-bottom: 1rem;
}

.card-icon.blue { background: rgba(0,82,255,0.15); }
.card-icon.green { background: rgba(22,199,132,0.15); }
.card-icon.orange { background: rgba(245,165,36,0.15); }
.card-icon.red { background: rgba(234,57,67,0.15); }
.card-icon.purple { background: rgba(139,92,246,0.15); }
.card-icon.teal { background: rgba(20,184,166,0.15); }

.card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.4rem; }
.card p { color: var(--dark-text-secondary); font-size: 0.875rem; line-height: 1.5; }
.card .card-count { color: var(--medium-gray); font-size: 0.8rem; margin-top: 0.75rem; }
.card .arrow { color: var(--primary); font-size: 0.85rem; margin-top: 0.75rem; display: block; font-weight: 600; }

/* ── STATUS BADGE ── */
.badge {
  display: inline-block;
  padding: 3px 10px; border-radius: 50px;
  font-size: 0.75rem; font-weight: 600;
}
.badge-success { background: var(--soft-green); color: var(--success); }
.badge-warning { background: var(--soft-orange); color: var(--warning); }
.badge-error { background: var(--soft-red); color: var(--error); }
.badge-blue { background: rgba(0,82,255,0.12); color: var(--light-blue); }
.badge-gray { background: var(--dark-border); color: var(--dark-text-secondary); }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius-sm);
  font-family: 'Inter', sans-serif;
  font-weight: 600; font-size: 0.95rem;
  cursor: pointer; transition: var(--transition);
  border: none; text-decoration: none;
}
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-hover); color: var(--white); transform: translateY(-1px); }
.btn-secondary { background: var(--dark-card); color: var(--dark-text); border: 1px solid var(--dark-border); }
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); }
.btn-success { background: var(--success); color: var(--white); }
.btn-success:hover { background: var(--success-hover); color: var(--white); }
.btn-lg { padding: 15px 32px; font-size: 1rem; border-radius: var(--radius); }
.btn-full { width: 100%; justify-content: center; }

/* ── FORM ELEMENTS ── */
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block; font-size: 0.875rem; font-weight: 600;
  color: var(--dark-text); margin-bottom: 0.5rem;
}
.form-group label span { color: var(--error); }

.form-control {
  width: 100%;
  background: var(--dark-card);
  border: 1.5px solid var(--dark-border);
  color: var(--dark-text);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  outline: none;
  transition: var(--transition);
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,82,255,0.12); }
.form-control::placeholder { color: var(--dark-text-secondary); }

select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 140px; }

/* ── FAQ ── */
.faq-item {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
  overflow: hidden;
}
.faq-question {
  padding: 1.1rem 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
  cursor: pointer; font-weight: 600; font-size: 0.95rem;
  transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-question .faq-icon { color: var(--primary); font-size: 1.1rem; transition: var(--transition); }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  padding: 0 1.5rem;
  color: var(--dark-text-secondary);
  font-size: 0.9rem; line-height: 1.7;
  max-height: 0; overflow: hidden;
  transition: max-height 0.35s ease, padding 0.2s;
}
.faq-item.open .faq-answer { max-height: 500px; padding: 0 1.5rem 1.2rem; }

/* ── STAT CARDS ── */
.stat-card {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
}
.stat-value { font-size: 2rem; font-weight: 800; color: var(--primary); }
.stat-label { color: var(--dark-text-secondary); font-size: 0.85rem; margin-top: 0.25rem; }

/* ── FOOTER ── */
footer {
  background: var(--dark-card);
  border-top: 1px solid var(--dark-border);
  padding: 3rem 2rem 1.5rem;
  margin-top: 4rem;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem; max-width: 1200px; margin: 0 auto 2rem;
}
.footer-col h4 { font-size: 0.875rem; font-weight: 700; margin-bottom: 1rem; color: var(--dark-text); }
.footer-col a {
  display: block; color: var(--dark-text-secondary);
  font-size: 0.85rem; margin-bottom: 0.5rem;
}
.footer-col a:hover { color: var(--primary); }
.footer-col p { color: var(--dark-text-secondary); font-size: 0.85rem; line-height: 1.7; }
.footer-bottom {
  border-top: 1px solid var(--dark-border);
  padding-top: 1.5rem; text-align: center;
  color: var(--dark-text-secondary); font-size: 0.82rem;
  max-width: 1200px; margin: 0 auto;
}
.footer-status { display: flex; align-items: center; justify-content: center; gap: 6px; margin-top: 0.5rem; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1}50%{opacity:0.4} }

/* ── PAGE HEADER ── */
.page-header {
  padding: 50px 0 40px;
  border-bottom: 1px solid var(--dark-border);
  margin-bottom: 3rem;
}
.page-header h1 { font-size: 2rem; font-weight: 800; letter-spacing: -0.5px; }
.page-header p { color: var(--dark-text-secondary); margin-top: 0.4rem; }

/* ── ALERTS ── */
.alert {
  padding: 1rem 1.25rem; border-radius: var(--radius-sm);
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 0.9rem; margin-bottom: 1.25rem;
}
.alert-success { background: var(--soft-green); color: #0a7a4e; border-left: 4px solid var(--success); }
.alert-warning { background: var(--soft-orange); color: #8a5a00; border-left: 4px solid var(--warning); }
.alert-error { background: var(--soft-red); color: #a0151d; border-left: 4px solid var(--error); }
.alert-info { background: var(--soft-blue); color: var(--deep-navy); border-left: 4px solid var(--primary); }

/* ── TIMELINE ── */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before { content:''; position:absolute; left:7px; top:0; bottom:0; width:2px; background: var(--dark-border); }
.timeline-item { position: relative; margin-bottom: 1.5rem; }
.timeline-dot {
  position: absolute; left: -1.85rem; top: 4px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--primary); border: 2px solid var(--dark-bg);
}
.timeline-dot.success { background: var(--success); }
.timeline-dot.warning { background: var(--warning); }
.timeline-time { font-size: 0.78rem; color: var(--dark-text-secondary); margin-bottom: 2px; }
.timeline-text { font-size: 0.9rem; }

/* ── TABS ── */
.tabs { display: flex; gap: 0.5rem; border-bottom: 1px solid var(--dark-border); margin-bottom: 2rem; }
.tab-btn {
  padding: 10px 20px; background: none; border: none;
  color: var(--dark-text-secondary); font-family: 'Inter', sans-serif;
  font-size: 0.9rem; font-weight: 600; cursor: pointer;
  border-bottom: 2px solid transparent; margin-bottom: -1px;
  transition: var(--transition);
}
.tab-btn:hover { color: var(--dark-text); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }




/* ── RESPONSIVE UTILITIES & LAYOUTS ── */
.layout-sidebar-right {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 2rem;
  align-items: start;
}

.layout-sidebar-left {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 2rem;
  align-items: start;
}

.layout-two-column {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
  align-items: start;
}

.status-four-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2.5rem;
}

/* ── MOBILE MENU SYSTEM ── */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--dark-text);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
  transition: var(--transition);
  z-index: 110;
}
.mobile-menu-toggle:hover {
  color: var(--primary);
}

.nav-drawer {
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  background: rgba(22, 27, 34, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--dark-border);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  z-index: 99;
  transform: translateY(-10px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.nav-drawer.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.nav-drawer a {
  color: var(--dark-text-secondary);
  font-size: 1.05rem;
  font-weight: 500;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition);
}

.nav-drawer a:hover, .nav-drawer a.active {
  color: var(--dark-text);
  background: rgba(255, 255, 255, 0.05);
}

.nav-drawer a.nav-btn-mobile {
  background: var(--primary);
  color: var(--white);
  justify-content: center;
  font-weight: 600;
  margin-top: 0.5rem;
}
.nav-drawer a.nav-btn-mobile:hover {
  background: var(--primary-hover);
}

/* ── RESPONSIVE MEDIA QUERIES ── */
@media (max-width: 992px) {
  .layout-sidebar-right {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .layout-two-column {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 900px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .status-four-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .layout-sidebar-left {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .nav-links {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
  }
}

@media (max-width: 600px) {
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .status-four-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .navbar { padding: 0 1.25rem; }
  .hero { padding: 50px 1.25rem 40px; }
  .hero h1 { font-size: 2.2rem; }
  .tabs {
    overflow-x: auto;
    white-space: nowrap;
    flex-wrap: nowrap;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
  }
  .tab-btn {
    flex-shrink: 0;
  }
}

@media (max-width: 480px) {

}


/* ── KB ARTICLE BODY TYPOGRAPHY ── */
.kb-article-content h2 {
  font-size: 1.15rem; font-weight: 700;
  margin: 2rem 0 0.75rem; padding-top: 1rem;
  color: var(--dark-text);
  border-bottom: 1px solid var(--dark-border);
  padding-bottom: 0.5rem;
}
.kb-article-content h3 {
  font-size: 1rem; font-weight: 700;
  margin: 1.5rem 0 0.5rem;
}
.kb-article-content p {
  color: var(--dark-text-secondary);
  margin-bottom: 1rem; line-height: 1.8;
}
.kb-article-content ul, .kb-article-content ol {
  padding-left: 1.5rem; margin-bottom: 1rem;
  color: var(--dark-text-secondary);
  display: flex; flex-direction: column; gap: 0.4rem;
}
.kb-article-content li { line-height: 1.7; }
.kb-article-content strong { color: var(--dark-text); }
.kb-article-content code {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 0.875em;
  color: var(--light-blue);
}