/* ===== KNOXDL STYLESHEET ===== */
/* Inspired by Hyperliquid.xyz — dark bg, #42ffb5 accent green, clean typography */

:root {
  --bg: #0a0e0c;
  --bg-surface: #111714;
  --bg-card: #141a17;
  --bg-card-hover: #1a2320;
  --border: rgba(66,255,181,0.1);
  --border-strong: rgba(66,255,181,0.2);
  --accent: #42ffb5;
  --accent-dim: rgba(66,255,181,0.12);
  --accent-glow: rgba(66,255,181,0.06);
  --text-primary: #e8f5f0;
  --text-secondary: #7a9e8e;
  --text-muted: #4a6357;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 18px;
  --max-w: 1100px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }

/* ===== LAYOUT ===== */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== NAVBAR ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,14,12,0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 400;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--accent); }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: 0.2s;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  padding: 12px 24px 20px;
  gap: 2px;
  border-top: 1px solid var(--border);
}

.nav-mobile a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 15px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}

.nav-mobile a:hover { color: var(--accent); }
.nav-mobile.open { display: flex; }

/* ===== HERO ===== */
.hero {
  position: relative;
  padding: 80px 0 72px;
  overflow: hidden;
  text-align: center;
}

.hero-glow {
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 500px;
  background: radial-gradient(ellipse at center, rgba(66,255,181,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-block;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid var(--border-strong);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
  padding: 5px 14px;
  margin-bottom: 24px;
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 58px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: var(--text-primary);
  margin-bottom: 18px;
}

.hero-title .accent { color: var(--accent); }

.hero-sub {
  color: var(--text-secondary);
  font-size: 17px;
  max-width: 540px;
  margin: 0 auto 40px;
  line-height: 1.65;
}

/* ===== DOWNLOADER CARD ===== */
.downloader-card {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 28px;
  max-width: 680px;
  margin: 0 auto;
  box-shadow: 0 0 0 1px rgba(66,255,181,0.04), 0 20px 60px rgba(0,0,0,0.4);
}

.input-row {
  display: flex;
  gap: 10px;
}

.url-input {
  flex: 1;
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 14px;
  padding: 12px 16px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  min-width: 0;
}

.url-input::placeholder { color: var(--text-muted); }

.url-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(66,255,181,0.08);
}

.btn-primary {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #071209;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  padding: 12px 22px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.18s, transform 0.12s;
  flex-shrink: 0;
}

.btn-primary:hover { background: #62ffbf; }
.btn-primary:active { transform: scale(0.97); }

/* ===== STATUS / RESULTS ===== */
.status-area {
  margin-top: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-strong);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
  flex-shrink: 0;
}

@keyframes spin { to { transform: rotate(360deg); } }

.status-text {
  color: var(--text-secondary);
  font-size: 14px;
}

.quality-results { margin-top: 20px; }

.quality-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}

.quality-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.quality-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  padding: 10px 16px;
  cursor: pointer;
  text-decoration: none;
  transition: border-color 0.2s, background 0.2s;
}

.quality-btn:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent);
}

.quality-btn.best {
  border-color: var(--accent);
  color: var(--accent);
}

.quality-btn .badge {
  background: var(--accent);
  color: #071209;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.error-msg {
  margin-top: 16px;
  background: rgba(226,75,74,0.1);
  border: 1px solid rgba(226,75,74,0.3);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: #f09595;
  font-size: 14px;
}

.disclaimer {
  color: var(--text-muted);
  font-size: 12px;
  margin-top: 20px;
  text-align: center;
}

/* ===== AD SLOTS ===== */
.ad-slot {
  padding: 16px 0;
  text-align: center;
  min-height: 100px;
}

/* ===== SECTIONS ===== */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-surface); }

.section-header {
  text-align: center;
  margin-bottom: 52px;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.5vw, 38px);
  font-weight: 600;
  letter-spacing: -0.8px;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 16px;
  max-width: 480px;
  margin: 0 auto;
}

/* ===== STEPS GRID ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
  transition: border-color 0.25s, background 0.25s;
}

.step-card:hover {
  border-color: var(--border-strong);
  background: var(--bg-card-hover);
}

.step-num {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 700;
  color: var(--accent-dim);
  line-height: 1;
  margin-bottom: 14px;
  background: linear-gradient(135deg, var(--accent) 0%, rgba(66,255,181,0.3) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.step-card h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.step-card p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.65;
}

/* ===== FEATURES GRID ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.25s, background 0.25s;
}

.feature-card:hover {
  border-color: var(--border-strong);
  background: var(--bg-card-hover);
}

.feature-icon {
  width: 42px;
  height: 42px;
  background: var(--accent-glow);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.feature-icon svg {
  width: 20px;
  height: 20px;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.65;
}

/* ===== PROSE ===== */
.prose-section {
  max-width: 720px;
  margin: 0 auto;
}

.prose-section h2 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.4px;
  color: var(--text-primary);
  margin-top: 40px;
  margin-bottom: 14px;
}

.prose-section h2:first-child { margin-top: 0; }

.prose-section p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 16px;
}

.prose-section a { color: var(--accent); text-decoration: none; }
.prose-section a:hover { text-decoration: underline; }

/* ===== FAQ ===== */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.2s;
}

.faq-item:has(.faq-a.open) { border-color: var(--border-strong); }

.faq-q {
  width: 100%;
  background: var(--bg-card);
  border: none;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  padding: 18px 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  text-align: left;
  transition: background 0.2s;
}

.faq-q:hover { background: var(--bg-card-hover); }

.faq-arrow {
  width: 16px;
  height: 16px;
  stroke: var(--text-muted);
  flex-shrink: 0;
  transition: transform 0.25s;
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  background: var(--bg-surface);
}

.faq-a.open { max-height: 400px; }

.faq-a p {
  padding: 14px 20px 18px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
}

.faq-a a { color: var(--accent); text-decoration: none; }
.faq-a a:hover { text-decoration: underline; }

.faq-q.active .faq-arrow { transform: rotate(180deg); }

/* ===== FOOTER ===== */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
}

.footer-tagline {
  color: var(--text-muted);
  font-size: 13px;
  margin-top: 6px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--accent); }

.footer-legal {
  color: var(--text-muted);
  font-size: 12px;
  max-width: 600px;
  line-height: 1.6;
}

.footer-legal a { color: var(--text-secondary); text-decoration: none; }
.footer-legal a:hover { color: var(--accent); }

/* ===== INNER PAGES (privacy, terms) ===== */
.page-hero {
  padding: 60px 0 40px;
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 8px;
}

.page-hero p {
  color: var(--text-muted);
  font-size: 14px;
}

.page-content {
  max-width: 760px;
  margin: 0 auto;
  padding: 52px 24px 80px;
}

.page-content h2 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 40px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.page-content h2:first-child { margin-top: 0; }

.page-content p, .page-content li {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 12px;
}

.page-content ul {
  padding-left: 20px;
  margin-bottom: 16px;
}

.page-content a { color: var(--accent); text-decoration: none; }
.page-content a:hover { text-decoration: underline; }

.page-content strong { color: var(--text-primary); font-weight: 500; }

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  .hero { padding: 52px 0 48px; }

  .downloader-card { padding: 20px 16px; }

  .input-row { flex-direction: column; }

  .btn-primary { width: 100%; justify-content: center; }

  .section { padding: 52px 0; }

  .steps-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
}