/* ================================================================
   Ijen Technologies & Solutions — Design System
   ================================================================ */

/* --- Custom Properties --- */
:root {
  --bg-primary: #0a0e17;
  --bg-surface: #0f1724;
  --bg-surface-hover: #131c2e;
  --border: #1e293b;
  --border-hover: #334155;
  --text-primary: #e2e8f0;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;
  --text-dim: #475569;
  --accent: #1fa0b4;
  --accent-hover: #167d8c;
  --accent-glow: rgba(31, 160, 180, 0.15);
  --accent-border: rgba(58, 179, 196, 0.2);
  --gradient-blue: rgba(56, 97, 251, 0.08);
  --gradient-purple: rgba(99, 54, 245, 0.06);
  --gradient-teal: rgba(14, 116, 144, 0.06);
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius: 8px;
  --radius-lg: 12px;
  --max-width: 1200px;
  --nav-height: 64px;
}

/* --- Reset --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-stack);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

/* --- Background --- */
.ij-bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, var(--gradient-blue) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, var(--gradient-purple) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, var(--gradient-teal) 0%, transparent 50%);
  z-index: 0;
  pointer-events: none;
}
.ij-page { position: relative; z-index: 1; }

/* ================================================================
   NAVIGATION
   ================================================================ */
.ij-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: var(--nav-height);
  background: rgba(10, 14, 23, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.ij-nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}
.ij-nav-brand img {
  width: 40px;
  height: 40px;
  border-radius: 6px;
}
.ij-nav-brand span {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  white-space: nowrap;
}

/* --- Nav Links --- */
.ij-nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  height: 100%;
}
.ij-nav-item {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
}
.ij-nav-link {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius);
  transition: color 0.2s, background 0.2s;
  cursor: pointer;
  white-space: nowrap;
}
.ij-nav-link:hover,
.ij-nav-link.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}
.ij-nav-link .chevron {
  width: 12px;
  height: 12px;
  transition: transform 0.2s;
}
.ij-nav-item:hover .chevron,
.ij-nav-item.open .chevron {
  transform: rotate(180deg);
}

/* --- Dropdown --- */
.ij-dropdown {
  position: absolute;
  top: calc(100% - 4px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 220px;
  padding: 0.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(8px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
  pointer-events: none;
}
.ij-nav-item:hover .ij-dropdown,
.ij-nav-item.open .ij-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}
.ij-dropdown a {
  display: block;
  padding: 0.6rem 1rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
}
.ij-dropdown a:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
}
.ij-dropdown .dd-desc {
  display: block;
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-top: 2px;
}

/* --- Profile --- */
.ij-nav-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}
.ij-profile-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}
.ij-profile-btn:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}
.ij-profile-btn svg {
  width: 20px;
  height: 20px;
}
.ij-profile-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  min-width: 200px;
  padding: 0.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
  pointer-events: none;
}
.ij-profile-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}
.ij-profile-dropdown a {
  display: block;
  padding: 0.6rem 1rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
}
.ij-profile-dropdown a:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
}
.ij-profile-dropdown .dd-divider {
  height: 1px;
  background: var(--border);
  margin: 0.35rem 0;
}

/* --- Hamburger (mobile) --- */
.ij-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.ij-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-muted);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.ij-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.ij-hamburger.open span:nth-child(2) { opacity: 0; }
.ij-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --- Mobile Nav Overlay --- */
.ij-mobile-nav {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 99;
  background: rgba(10, 14, 23, 0.96);
  backdrop-filter: blur(16px);
  overflow-y: auto;
  padding: 1.5rem 2rem 3rem;
}
.ij-mobile-nav.open { display: block; }
.ij-mobile-nav .ij-mobile-section { margin-bottom: 1.5rem; }
.ij-mobile-nav .ij-mobile-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0.5rem 0;
}
.ij-mobile-nav a {
  display: block;
  padding: 0.75rem 0;
  font-size: 1rem;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(30, 41, 59, 0.5);
  transition: color 0.15s;
}
.ij-mobile-nav a:hover { color: var(--text-primary); }
.ij-mobile-nav a:last-child { border-bottom: none; }

/* ================================================================
   HERO
   ================================================================ */
.ij-hero {
  padding: 8rem 2rem 6rem;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}
.ij-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, #e2e8f0 30%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.ij-hero p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-subtle);
  max-width: 640px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}
.ij-hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ================================================================
   SECTIONS
   ================================================================ */
.ij-section {
  padding: 5rem 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
}
.ij-section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}
.ij-divider {
  width: 60px;
  height: 1px;
  background: var(--border);
  margin: 0 auto;
}

/* ================================================================
   TYPOGRAPHY
   ================================================================ */
.ij-badge {
  display: inline-block;
  padding: 0.35rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--accent-border);
  border-radius: 999px;
  margin-bottom: 1.25rem;
}
.ij-heading {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 1rem;
}
.ij-subheading {
  font-size: 1.05rem;
  color: var(--text-subtle);
  line-height: 1.7;
  max-width: 600px;
}
.ij-section-header .ij-subheading {
  margin: 0 auto;
}

/* ================================================================
   BUTTONS
   ================================================================ */
.ij-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  white-space: nowrap;
}
.ij-btn:hover {
  border-color: var(--border-hover);
  background: var(--bg-surface-hover);
}
.ij-btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  border-color: var(--accent);
  color: #fff;
}
.ij-btn-primary:hover {
  filter: brightness(1.1);
  border-color: var(--accent);
}
.ij-btn-lg {
  padding: 0.9rem 2.25rem;
  font-size: 1.05rem;
}

/* ================================================================
   CARDS / GRID
   ================================================================ */
.ij-grid {
  display: grid;
  gap: 1.5rem;
}
.ij-grid-2 { grid-template-columns: repeat(2, 1fr); }
.ij-grid-3 { grid-template-columns: repeat(3, 1fr); }
.ij-grid-4 { grid-template-columns: repeat(4, 1fr); }

.ij-card {
  padding: 2rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color 0.2s, transform 0.2s;
}
.ij-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.ij-card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--accent-glow);
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.ij-card-icon svg {
  width: 24px;
  height: 24px;
}
.ij-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}
.ij-card p {
  font-size: 0.92rem;
  color: var(--text-subtle);
  line-height: 1.65;
}
.ij-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--accent);
  margin-top: 1.25rem;
  transition: gap 0.2s;
}
.ij-card-link:hover { gap: 0.6rem; }

a.ij-card { text-decoration: none; }

/* --- Glass variant --- */
.ij-glass {
  background: rgba(15, 23, 36, 0.6);
  backdrop-filter: blur(8px);
}

/* ================================================================
   STATS
   ================================================================ */
.ij-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.ij-stat {
  text-align: center;
  padding: 2rem 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-surface);
}
.ij-stat-number {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}
.ij-stat-label {
  font-size: 0.85rem;
  color: var(--text-subtle);
}

/* ================================================================
   FEATURE LIST (for inner pages)
   ================================================================ */
.ij-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}
.ij-feature {
  display: flex;
  gap: 1rem;
}
.ij-feature-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--accent-glow);
  color: var(--accent);
}
.ij-feature-icon svg {
  width: 20px;
  height: 20px;
}
.ij-feature h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}
.ij-feature p {
  font-size: 0.9rem;
  color: var(--text-subtle);
  line-height: 1.6;
}

/* ================================================================
   PRICING TABLE
   ================================================================ */
.ij-pricing {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}
.ij-price-card {
  padding: 2.5rem 2rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
}
.ij-price-card.featured {
  border-color: var(--accent);
  position: relative;
}
.ij-price-card.featured::before {
  content: "Popular";
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.25rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #fff;
  background: var(--accent);
  border-radius: 999px;
}
.ij-price-name {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.ij-price-amount {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}
.ij-price-amount .period {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-subtle);
}
.ij-price-desc {
  color: var(--text-subtle);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}
.ij-price-features {
  text-align: left;
  margin-bottom: 2rem;
}
.ij-price-features li {
  padding: 0.5rem 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.ij-price-features li::before {
  content: "";
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  background: var(--accent-glow);
  border: 1px solid var(--accent-border);
  border-radius: 50%;
}

/* ================================================================
   CTA BANNER
   ================================================================ */
.ij-cta {
  text-align: center;
  padding: 5rem 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ================================================================
   PAGE HEADER (inner pages)
   ================================================================ */
.ij-page-header {
  padding: 7rem 2rem 4rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}
.ij-page-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--text-primary);
}
.ij-page-header p {
  font-size: 1.1rem;
  color: var(--text-subtle);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto;
}

/* ================================================================
   FORMS
   ================================================================ */
.ij-form-group { margin-bottom: 1.25rem; }
.ij-form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.ij-input,
.ij-textarea,
.ij-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  font-family: var(--font-stack);
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.2s;
}
.ij-input:focus,
.ij-textarea:focus,
.ij-select:focus {
  border-color: var(--accent);
}
.ij-textarea { resize: vertical; min-height: 120px; }

/* ================================================================
   FOOTER
   ================================================================ */
.ij-footer {
  padding: 3rem 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
}
.ij-footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.ij-footer-links a {
  font-size: 0.88rem;
  color: var(--text-subtle);
  transition: color 0.2s;
}
.ij-footer-links a:hover { color: var(--text-primary); }
.ij-footer-copy {
  font-size: 0.82rem;
  color: var(--text-dim);
}
.ij-footer-copy a {
  color: var(--text-subtle);
  transition: color 0.2s;
}
.ij-footer-copy a:hover { color: var(--text-primary); }

/* ================================================================
   PROSE (for policy/blog pages)
   ================================================================ */
.ij-prose {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 2rem 4rem;
}
.ij-prose h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 2.5rem 0 1rem;
}
.ij-prose h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 2rem 0 0.75rem;
}
.ij-prose p {
  color: var(--text-muted);
  margin-bottom: 1rem;
  line-height: 1.75;
}
.ij-prose ul, .ij-prose ol {
  margin: 1rem 0 1rem 1.5rem;
  list-style: disc;
}
.ij-prose ol { list-style: decimal; }
.ij-prose li {
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  line-height: 1.65;
}
.ij-prose a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.ij-prose a:hover { color: var(--text-primary); }
.ij-prose strong { color: var(--text-primary); }

/* ================================================================
   BLOG CARD
   ================================================================ */
.ij-blog-card {
  padding: 0;
  overflow: hidden;
}
.ij-blog-card .ij-blog-img {
  height: 180px;
  background: linear-gradient(135deg, var(--bg-surface) 0%, #1a2332 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 0.85rem;
}
.ij-blog-card .ij-blog-body {
  padding: 1.5rem;
}
.ij-blog-card .ij-blog-meta {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
}
.ij-blog-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}
.ij-blog-card p {
  font-size: 0.88rem;
  color: var(--text-subtle);
  line-height: 1.6;
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 1024px) {
  .ij-nav-links { display: none; }
  .ij-hamburger { display: flex; }
  .ij-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .ij-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .ij-hero { padding: 5rem 1.5rem 4rem; }
  .ij-section { padding: 3.5rem 1.5rem; }
  .ij-page-header { padding: 5rem 1.5rem 3rem; }
  .ij-grid-2,
  .ij-grid-3,
  .ij-grid-4 { grid-template-columns: 1fr; }
  .ij-features { grid-template-columns: 1fr; }
  .ij-stats { grid-template-columns: repeat(2, 1fr); }
  .ij-hero-actions { flex-direction: column; align-items: center; }
  .ij-nav-brand span { font-size: 0.9rem; }
  .ij-footer-links { gap: 1rem; }
}

@media (max-width: 480px) {
  .ij-stats { grid-template-columns: 1fr; }
  .ij-nav { padding: 0 1rem; }
  .ij-nav-brand span { display: none; }
}