*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg:      #0a0e0f;
  --bg2:     #0f1415;
  --bg3:     #141a1b;
  --card:    rgba(20,30,32,0.9);
  --border:  rgba(255,255,255,0.07);
  --green:   #00e676;
  --green2:  #00c853;
  --gold:    #ffd700;
  --silver:  #b0bec5;
  --white:   #f0f4f5;
  --muted:   #7a9099;
  --danger:  #f44336;
  --warning: #ff9800;
  --info:    #29b6f6;
  --radius:  12px;
  --shadow:  0 8px 32px rgba(0,0,0,0.5);
  --trans:   0.2s cubic-bezier(.4,0,.2,1);
}
html { scroll-behavior: smooth; }
body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--white);
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: #2a3a3e; border-radius: 99px; }

/* HEADER */
header {
  background: rgba(10,14,15,.95);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(20px);
}
.header-inner {
  max-width: 860px; margin: 0 auto;
  height: 60px; display: flex; align-items: center; justify-content: space-between;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.2rem; font-weight: 800;
}
.logo span { color: var(--green); }
.header-nav { display: flex; align-items: center; gap: 8px; }
.nav-link {
  padding: 7px 14px; border-radius: 8px;
  font-size: 13px; font-weight: 600; color: var(--muted);
  transition: all var(--trans); border: 1px solid transparent;
}
.nav-link:hover { color: var(--white); background: rgba(255,255,255,.05); }
.nav-link.active { color: var(--green); border-color: rgba(0,230,118,.25); background: rgba(0,230,118,.07); }

/* HERO */
.hero-banner {
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(0,200,83,.1) 0%, transparent 70%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
  border-bottom: 1px solid var(--border);
  padding: 48px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero-grid-bg {
  position: absolute; inset: 0; opacity: .04;
  background-image: linear-gradient(var(--green) 1px, transparent 1px),
                    linear-gradient(90deg, var(--green) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}
.hero-banner h1 {
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  font-weight: 800; line-height: 1.15; position: relative;
}
.hero-banner h1 em { color: var(--green); font-style: normal; }
.hero-banner p {
  color: var(--muted); max-width: 520px; margin: 12px auto 0;
  line-height: 1.7; font-size: 1rem; position: relative;
}
.season-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(0,230,118,.1); border: 1px solid rgba(0,230,118,.25);
  border-radius: 99px; padding: 5px 14px; font-size: 11px;
  font-weight: 700; color: var(--green); text-transform: uppercase;
  letter-spacing: .1em; margin-bottom: 18px; position: relative;
}

/* MAIN */
main { max-width: 860px; margin: 0 auto; padding: 40px 24px 80px; }

/* TABLE OF CONTENTS */
.toc-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px 28px;
  backdrop-filter: blur(16px);
  margin-bottom: 32px;
}
.toc-title {
  font-size: 11px; font-weight: 800; text-transform: uppercase;
  letter-spacing: .12em; color: var(--green); margin-bottom: 14px;
  display: flex; align-items: center; gap: 8px;
}
.toc-list {
  display: flex; flex-direction: column; gap: 4px;
  list-style: none;
}
.toc-list li a {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 10px; border-radius: 8px;
  font-size: 13px; color: var(--muted); font-weight: 600;
  transition: all var(--trans);
  border: 1px solid transparent;
}
.toc-list li a:hover {
  color: var(--white); background: rgba(255,255,255,.04);
  border-color: var(--border);
}
.toc-num {
  width: 22px; height: 22px; border-radius: 6px;
  background: rgba(0,230,118,.1); color: var(--green);
  display: flex; align-items: center; justify-content: center;
  font-size: 10px; font-weight: 800; flex-shrink: 0;
}

/* SECTION CARD */
.reg-section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  backdrop-filter: blur(16px);
  margin-bottom: 12px;
  transition: border-color var(--trans);
}
.reg-section:focus-within,
.reg-section.open { border-color: rgba(0,230,118,.2); }

.reg-header {
  padding: 18px 24px;
  cursor: pointer; user-select: none;
  display: flex; align-items: center; gap: 14px;
  transition: background var(--trans);
}
.reg-header:hover { background: rgba(255,255,255,.03); }

.reg-section-num {
  width: 32px; height: 32px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 800; flex-shrink: 0;
  background: rgba(0,230,118,.1); color: var(--green);
  border: 1px solid rgba(0,230,118,.2);
  transition: all var(--trans);
}
.reg-section.open .reg-section-num {
  background: var(--green); color: #000;
  box-shadow: 0 0 12px rgba(0,230,118,.4);
}

.reg-section-title {
  flex: 1;
  font-size: 15px; font-weight: 700;
}
.reg-section-subtitle {
  font-size: 11px; color: var(--muted); font-weight: 400; margin-top: 2px;
}

.chevron {
  color: var(--muted); flex-shrink: 0;
  transition: transform var(--trans);
}
.reg-section.open .chevron { transform: rotate(180deg); color: var(--green); }

.reg-body {
  max-height: 0; overflow: hidden;
  transition: max-height .35s cubic-bezier(.4,0,.2,1);
}
.reg-section.open .reg-body { max-height: 2000px; }

.reg-body-inner {
  padding: 0 24px 24px;
  border-top: 1px solid var(--border);
}

/* POINTS */
.points-list { list-style: none; display: flex; flex-direction: column; gap: 8px; margin-top: 16px; }

.point-item {
  display: flex; align-items: flex-start; gap: 12px;
  background: rgba(255,255,255,.02);
  border: 1px solid var(--border);
  border-radius: 10px; padding: 12px 14px;
  font-size: 13px; line-height: 1.65;
  transition: border-color var(--trans), background var(--trans);
}
.point-item:hover {
  border-color: rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
}

.point-icon {
  flex-shrink: 0; margin-top: 1px;
  width: 18px; height: 18px;
}
.point-icon.ok   { color: var(--green); }
.point-icon.warn { color: var(--warning); }
.point-icon.err  { color: var(--danger); }
.point-icon.info { color: var(--info); }

.point-content { flex: 1; }
.point-num {
  width: 22px; height: 22px; border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 10px; font-weight: 800; flex-shrink: 0; margin-top: 1px;
  background: rgba(255,255,255,.06); color: var(--muted);
}

/* SUBPOINTS */
.subpoints-list {
  list-style: none; margin-top: 8px;
  display: flex; flex-direction: column; gap: 5px;
  padding-left: 4px;
}
.subpoint-item {
  display: flex; align-items: flex-start; gap: 8px;
  font-size: 12px; line-height: 1.6; color: var(--muted);
  padding: 6px 10px;
  border-left: 2px solid var(--border);
  border-radius: 0 6px 6px 0;
  background: rgba(255,255,255,.015);
  transition: border-color var(--trans);
}
.subpoint-item:hover { border-left-color: rgba(0,230,118,.3); color: var(--white); }
.subpoint-bullet {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--muted); flex-shrink: 0; margin-top: 6px;
}

/* BADGES */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px; border-radius: 99px; font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .05em; vertical-align: middle;
  margin-left: 6px;
}
.badge-green  { background: rgba(0,230,118,.12); color: var(--green); border: 1px solid rgba(0,230,118,.25); }
.badge-orange { background: rgba(255,152,0,.12); color: var(--warning); border: 1px solid rgba(255,152,0,.25); }
.badge-red    { background: rgba(244,67,54,.12); color: #ef5350; border: 1px solid rgba(244,67,54,.25); }
.badge-blue   { background: rgba(41,182,246,.12); color: var(--info); border: 1px solid rgba(41,182,246,.25); }

/* INFO BOX */
.info-box {
  border-radius: 10px; padding: 13px 16px;
  display: flex; align-items: flex-start; gap: 12px;
  font-size: 13px; line-height: 1.6; margin-top: 14px;
}
.info-box.green  { background: rgba(0,230,118,.06); border: 1px solid rgba(0,230,118,.2); }
.info-box.orange { background: rgba(255,152,0,.06); border: 1px solid rgba(255,152,0,.2); }
.info-box.blue   { background: rgba(41,182,246,.06); border: 1px solid rgba(41,182,246,.2); }
.info-box.red    { background: rgba(244,67,54,.06); border: 1px solid rgba(244,67,54,.2); }
.info-box svg { flex-shrink: 0; margin-top: 1px; }

/* DIVIDER */
.divider { border: none; border-top: 1px solid var(--border); margin: 18px 0; }

/* FOOTER */
.reg-footer {
  margin-top: 40px; padding: 24px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 18px; text-align: center;
  backdrop-filter: blur(16px);
}
.reg-footer p { font-size: 12px; color: var(--muted); line-height: 1.7; }
.reg-footer strong { color: var(--white); }

/* BTN */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 24px; border-radius: var(--radius); border: none;
  font-size: 14px; font-weight: 700; transition: all var(--trans);
}
.btn-primary { background: linear-gradient(135deg, var(--green2), var(--green)); color: #000; }
.btn-primary:hover { filter: brightness(1.1); transform: translateY(-1px); box-shadow: 0 4px 20px rgba(0,200,83,.35); }
.btn-ghost { background: rgba(255,255,255,.05); border: 1px solid var(--border); color: var(--white); }
.btn-ghost:hover { background: rgba(255,255,255,.1); }

@media (max-width: 640px) {
  main { padding: 24px 16px 60px; }
  .hero-banner { padding: 36px 16px; }
  .toc-card, .reg-section { border-radius: 14px; }
  .reg-header { padding: 14px 16px; }
  .reg-body-inner { padding: 0 16px 18px; }
}