*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  :root {
    --navy: #0A1628; --navy-mid: #0D1E38;
    --red: #D0000A; --red-light: #F21420; --red-muted: #FF4D55;
    --white: #FFFFFF; --gray-1: #F7F9FC; --gray-2: #E8EDF5;
    --gray-text: #556070; --radius: 12px; --radius-lg: 20px;
  }
  html { scroll-behavior: smooth; }
  body { font-family: 'DM Sans', sans-serif; background: var(--white); color: var(--navy); overflow-x: hidden; font-size: 15px; line-height: 1.6; }

  /* ── NAV ── */
  nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(10,22,40,0.96); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); padding: 0 6%; display: flex; align-items: center; justify-content: space-between; height: 60px; border-bottom: 1px solid rgba(255,255,255,0.07); }
  .nav-back { display: inline-flex; align-items: center; gap: 8px; color: rgba(255,255,255,0.7); text-decoration: none; font-size: 13px; font-weight: 500; transition: color 0.2s; }
  .nav-back:hover { color: var(--white); }
  .nav-logo { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 20px; color: var(--white); text-decoration: none; }
  .nav-logo span { color: var(--red-muted); }
  .nav-digi-logo { height: 32px; width: auto; }
  .nav-cta { background: var(--red); color: var(--white); padding: 8px 18px; border-radius: 8px; font-size: 13px; font-weight: 600; text-decoration: none; transition: background 0.2s; white-space: nowrap; }
  .nav-cta:hover { background: var(--red-light); }

  /* ── HERO ── */
  .hero { min-height: 88vh; background: var(--navy); position: relative; overflow: hidden; display: flex; align-items: center; padding: 100px 6% 70px; }
  .hero-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(208,0,10,0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(208,0,10,0.06) 1px, transparent 1px), linear-gradient(rgba(46,116,245,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(46,116,245,0.03) 1px, transparent 1px); background-size: 64px 64px, 64px 64px, 32px 32px, 32px 32px; }
  .hero-glow { position: absolute; pointer-events: none; width: 600px; height: 600px; border-radius: 50%; background: radial-gradient(circle, rgba(208,0,10,0.1) 0%, transparent 70%); top: -100px; right: -100px; }
  .hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr auto; gap: 60px; align-items: center; width: 100%; max-width: 1200px; }
  .hero-tag { display: inline-flex; align-items: center; gap: 8px; background: rgba(208,0,10,0.15); border: 1px solid rgba(208,0,10,0.3); color: #FF6B70; padding: 5px 14px; border-radius: 100px; font-size: 11px; font-weight: 600; letter-spacing: 0.07em; text-transform: uppercase; margin-bottom: 1.4rem; }
  .hero-tag-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--red-muted); animation: pulse 2s infinite; }
  @keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.4;transform:scale(1.5)} }
  .hero h1 { font-family: 'Syne', sans-serif; font-size: clamp(32px, 4.5vw, 56px); font-weight: 800; line-height: 1.1; color: var(--white); margin-bottom: 1rem; }
  .hero h1 em { font-style: normal; color: var(--red-muted); }
  .hero-sub { font-size: 16px; color: rgba(255,255,255,0.65); line-height: 1.75; max-width: 520px; margin-bottom: 2rem; }
  .hero-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 2rem; }
  .hbadge { display: inline-flex; align-items: center; gap: 6px; padding: 5px 12px; border-radius: 100px; font-size: 11px; font-weight: 600; }
  .hbadge.r { background: rgba(208,0,10,0.15); border: 1px solid rgba(208,0,10,0.3); color: #FF7B80; }
  .hbadge.b { background: rgba(46,116,245,0.12); border: 1px solid rgba(46,116,245,0.25); color: #7EB3FF; }
  .hbadge.g { background: rgba(0,180,100,0.12); border: 1px solid rgba(0,180,100,0.25); color: #5DDBA5; }
  .hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; }
  .btn-red { background: var(--red); color: var(--white); padding: 13px 26px; border-radius: var(--radius); font-weight: 600; font-size: 14px; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; transition: background 0.2s, transform 0.2s; }
  .btn-red:hover { background: var(--red-light); transform: translateY(-2px); }
  .btn-ghost { background: transparent; border: 1.5px solid rgba(255,255,255,0.22); color: var(--white); padding: 13px 26px; border-radius: var(--radius); font-weight: 500; font-size: 14px; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; transition: border-color 0.2s, background 0.2s; }
  .btn-ghost:hover { border-color: var(--red-muted); background: rgba(208,0,10,0.08); }

  /* Logo box hero */
  .hero-logo-box { background: var(--white); border-radius: var(--radius-lg); padding: 32px 44px; text-align: center; flex-shrink: 0; }
  .hero-logo-box img { width: 260px; height: auto; display: block; }

  /* ── SECTIONS ── */
  section { padding: 80px 6%; }
  .section-tag { display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: #A8000A; background: rgba(208,0,10,0.07); padding: 5px 14px; border-radius: 100px; margin-bottom: 1rem; }
  .section-title { font-family: 'Syne', sans-serif; font-size: clamp(24px, 3vw, 36px); font-weight: 700; line-height: 1.2; color: var(--navy); margin-bottom: 1rem; }
  .section-sub { font-size: 15px; color: var(--gray-text); max-width: 560px; line-height: 1.8; }
  .section-title.white { color: var(--white); }
  .section-tag.on-dark { background: rgba(208,0,10,0.15); color: var(--red-muted); }
  .section-sub.on-dark { color: rgba(255,255,255,0.6); }

  /* ── ON-PREMISE ── */
  #onpremise { background: var(--navy-mid); }
  .onprem-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
  .onprem-visual { display: flex; flex-direction: column; gap: 12px; }
  .onprem-item { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius); padding: 18px 22px; display: flex; gap: 14px; align-items: flex-start; transition: border-color 0.2s; }
  .onprem-item:hover { border-color: rgba(208,0,10,0.35); }
  .onprem-item-icon { font-size: 24px; flex-shrink: 0; }
  .onprem-item-name { font-weight: 600; font-size: 14px; color: var(--white); margin-bottom: 3px; }
  .onprem-item-desc { font-size: 12px; color: rgba(255,255,255,0.6); line-height: 1.6; }

  /* ── FEATURES ── */
  #fitur { background: var(--gray-1); }
  .fitur-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 2.5rem; }
  .feat-card { background: var(--white); border: 1.5px solid var(--gray-2); border-radius: var(--radius-lg); padding: 26px; transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s; }
  .feat-card:hover { border-color: var(--red); transform: translateY(-4px); box-shadow: 0 16px 36px rgba(10,22,40,0.1); }
  .feat-icon { font-size: 28px; margin-bottom: 12px; line-height: 1; }
  .feat-name { font-family: 'Syne', sans-serif; font-size: 15px; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
  .feat-desc { font-size: 13px; color: var(--gray-text); line-height: 1.7; }

  /* ── USE CASE ── */
  #usecase { background: var(--white); }
  .usecase-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 2.5rem; }
  .uc-card { border-radius: var(--radius-lg); padding: 32px; position: relative; overflow: hidden; }
  .uc-card.edu { background: var(--navy); }
  .uc-card.corp { background: var(--navy-mid); }
  .uc-card::before { content: ''; position: absolute; bottom: -40px; right: -40px; width: 180px; height: 180px; border-radius: 50%; background: radial-gradient(circle, rgba(208,0,10,0.15) 0%, transparent 70%); pointer-events: none; }
  .uc-icon { font-size: 32px; margin-bottom: 14px; line-height: 1; }
  .uc-title { font-family: 'Syne', sans-serif; font-size: 18px; font-weight: 700; color: var(--white); margin-bottom: 8px; }
  .uc-desc { font-size: 13px; color: rgba(255,255,255,0.65); line-height: 1.7; margin-bottom: 1.2rem; }
  .uc-list { list-style: none; display: flex; flex-direction: column; gap: 6px; }
  .uc-list li { font-size: 12px; color: rgba(255,255,255,0.75); display: flex; gap: 8px; align-items: flex-start; }
  .uc-list li::before { content: '✓'; color: var(--red-muted); font-weight: 700; flex-shrink: 0; }

  /* ── PAKET ── */
  #paket { background: var(--navy); }
  .paket-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 2.5rem; }
  .paket-card { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-lg); padding: 28px; position: relative; transition: border-color 0.2s; }
  .paket-card.featured { border-color: rgba(208,0,10,0.5); background: rgba(208,0,10,0.07); }
  .paket-card:hover { border-color: rgba(208,0,10,0.4); }
  .paket-popular { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--red); color: var(--white); font-size: 10px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 3px 14px; border-radius: 100px; white-space: nowrap; }
  .paket-name { font-family: 'Syne', sans-serif; font-size: 20px; font-weight: 800; color: var(--white); margin-bottom: 4px; }
  .paket-for { font-size: 12px; color: rgba(255,255,255,0.45); margin-bottom: 18px; line-height: 1.5; }
  .paket-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
  .paket-list li { font-size: 13px; color: rgba(255,255,255,0.75); display: flex; gap: 8px; align-items: flex-start; line-height: 1.5; }
  .paket-list li::before { content: '✓'; color: var(--red-muted); font-weight: 700; flex-shrink: 0; margin-top: 1px; }
  .paket-list li.off { color: rgba(255,255,255,0.25); }
  .paket-list li.off::before { content: '—'; color: rgba(255,255,255,0.2); }

  /* ── DEMO ── */
  #demo { background: var(--gray-1); }
  .demo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 2.5rem; }
  .demo-card { background: var(--white); border: 1.5px solid var(--gray-2); border-radius: var(--radius-lg); padding: 28px; transition: border-color 0.2s, transform 0.2s; }
  .demo-card:hover { border-color: var(--red); transform: translateY(-3px); }
  .demo-num { width: 28px; height: 28px; border-radius: 50%; background: var(--red); color: var(--white); font-size: 13px; font-weight: 700; display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
  .demo-title { font-family: 'Syne', sans-serif; font-size: 15px; font-weight: 700; color: var(--navy); margin-bottom: 14px; }
  .demo-rows { display: flex; flex-direction: column; gap: 10px; margin-bottom: 18px; }
  .demo-row-label { font-size: 10px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: #999; margin-bottom: 2px; }
  .demo-row-val { font-size: 12px; font-weight: 600; color: var(--navy); font-family: 'Courier New', monospace; }
  .demo-row-val a { color: #A8000A; text-decoration: none; }
  .demo-row-val a:hover { text-decoration: underline; }
  .demo-btn { display: inline-flex; align-items: center; gap: 7px; padding: 10px 18px; border-radius: 8px; font-size: 13px; font-weight: 600; text-decoration: none; background: var(--red); color: var(--white); transition: background 0.2s, transform 0.15s; width: 100%; justify-content: center; }
  .demo-btn:hover { background: var(--red-light); transform: translateY(-1px); }
  .demo-btn.outline { background: transparent; border: 1.5px solid var(--gray-2); color: var(--navy); margin-top: 8px; }
  .demo-btn.outline:hover { border-color: var(--red); color: var(--red); }
  .demo-note { font-size: 12px; color: var(--gray-text); line-height: 1.7; margin-bottom: 16px; }

  /* ── FOOTER ── */
  footer { background: var(--navy); padding: 28px 6%; display: flex; justify-content: space-between; align-items: center; border-top: 1px solid rgba(255,255,255,0.07); flex-wrap: wrap; gap: 12px; }
  .footer-logo { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 16px; color: var(--white); }
  .footer-logo span { color: var(--red-muted); }
  .footer-copy { font-size: 12px; color: rgba(255,255,255,0.4); }
  .footer-back { font-size: 13px; color: rgba(255,255,255,0.5); text-decoration: none; }
  .footer-back:hover { color: var(--white); }

  @media (max-width: 900px) {
    .hero-inner { grid-template-columns: 1fr; }
    .hero-logo-box { display: none; }
    .onprem-inner, .usecase-grid, .paket-grid, .demo-grid { grid-template-columns: 1fr; }
    .fitur-grid { grid-template-columns: repeat(2, 1fr); }
  }
  @media (max-width: 600px) {
    section { padding: 60px 5%; }
    nav { padding: 0 5%; }
    .fitur-grid { grid-template-columns: 1fr; }
  }