:root {
  --bg: #0b1020;
  --bg-soft: #101932;
  --surface: rgba(255,255,255,0.06);
  --surface-strong: rgba(255,255,255,0.1);
  --text: #eef3ff;
  --muted: #b3bfd8;
  --line: rgba(255,255,255,0.09);
  --primary: #2359ff;
  --primary-soft: rgba(35, 89, 255, 0.16);
  --success: #1dbf73;
  --danger: #ff5f76;
  --shadow: 0 14px 50px rgba(0,0,0,0.22);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --container: min(1160px, calc(100% - 32px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(35,89,255,0.16), transparent 30%),
    radial-gradient(circle at top right, rgba(94,132,255,0.12), transparent 26%),
    linear-gradient(180deg, #091120 0%, #0c1324 100%);
  color: var(--text);
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
textarea, input, select {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}
textarea:focus, input:focus, select:focus {
  outline: 2px solid rgba(35,89,255,0.35);
  border-color: rgba(35,89,255,0.3);
}
.container { width: var(--container); margin-inline: auto; }
.narrow { width: min(820px, calc(100% - 32px)); }
.section { padding: 72px 0; }
.section.muted { background: rgba(255,255,255,0.02); border-block: 1px solid var(--line); }
.pill, .eyebrow, .tool-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: #cddaff;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
}
.eyebrow { margin-bottom: 14px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid rgba(35,89,255,0.4);
  background: linear-gradient(180deg, #3f6eff 0%, #2359ff 100%);
  color: white;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(35,89,255,0.26);
  cursor: pointer;
}
.button.secondary {
  background: rgba(255,255,255,0.04);
  border-color: var(--line);
  box-shadow: none;
}
.button.ghost {
  background: transparent;
  border-color: var(--line);
  box-shadow: none;
}
.button.small { min-height: 40px; padding-inline: 14px; font-size: 0.95rem; }
.help-text { color: var(--muted); display: block; margin-top: 12px; }
.lead { font-size: 1.125rem; line-height: 1.8; color: var(--muted); }
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(8, 13, 26, 0.76);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  min-height: 78px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.brand { display: inline-flex; align-items: center; gap: 14px; }
.brand strong { display: block; font-size: 1rem; }
.brand small { display: block; color: var(--muted); margin-top: 4px; }
.brand-mark {
  width: 46px; height: 46px; border-radius: 16px;
  display: grid; place-items: center;
  background: linear-gradient(180deg, #4575ff 0%, #194ef2 100%);
  box-shadow: 0 10px 24px rgba(35,89,255,0.25);
  font-weight: 800;
}
.main-nav { display: flex; align-items: center; gap: 18px; }
.main-nav a { color: var(--muted); }
.main-nav a.is-active, .main-nav a:hover { color: var(--text); }
.nav-toggle { display: none; }
.hero { padding: 88px 0 56px; }
.page-hero.compact { padding-bottom: 28px; }
.hero-grid, .two-col {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 28px;
}
.hero h1, .page-hero h1 {
  margin: 18px 0 18px;
  font-size: clamp(2.35rem, 5vw, 4.5rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
}
.hero-card, .content-card, .tool-card, .tool-layout > article, .result-box, .ad-box, .faq-grid details {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}
.hero-card, .content-card { padding: 28px; }
.hero-actions, .donation-links, .tool-actions, .inline-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.stats {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px;
  margin-top: 26px;
}
.stats article, .mini-stat {
  padding: 20px; border-radius: var(--radius-lg); background: rgba(255,255,255,0.04); border: 1px solid var(--line);
}
.stats strong, .mini-stat strong { display: block; font-size: 1.5rem; }
.stats span, .mini-stat span { color: var(--muted); margin-top: 8px; display: block; }
.check-list, .feature-list, .ordered-list, .footer-links { padding-left: 18px; color: var(--muted); }
.check-list li, .feature-list li, .ordered-list li, .footer-links li { margin-bottom: 10px; }
.section-heading {
  display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 28px;
}
.section-heading h2 { margin: 0; font-size: clamp(1.7rem, 4vw, 2.6rem); }
.section-heading p { color: var(--muted); max-width: 460px; }
.category-block + .category-block { margin-top: 42px; }
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.tool-card { padding: 24px; display: flex; flex-direction: column; justify-content: space-between; min-height: 220px; }
.tool-card h4 { margin: 14px 0 10px; font-size: 1.2rem; }
.tool-card p { color: var(--muted); line-height: 1.75; }
.text-link { color: #d8e2ff; font-weight: 700; margin-top: auto; }
.contact-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.prose h2 { margin-top: 30px; }
.prose p, .prose li { color: var(--muted); line-height: 1.9; }
.faq-grid { display: grid; gap: 18px; }
.faq-grid details { padding: 20px 24px; }
.faq-grid summary { cursor: pointer; font-weight: 700; }
.faq-grid p { color: var(--muted); line-height: 1.8; margin-bottom: 0; }
.ad-box { padding: 24px; min-height: 160px; display: grid; place-content: center; text-align: center; }
.site-footer { padding: 32px 0 22px; border-top: 1px solid var(--line); background: rgba(0,0,0,0.12); }
.footer-grid {
  display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 28px;
}
.footer-grid p, .footer-grid li { color: var(--muted); }
.footer-bottom { padding-top: 20px; margin-top: 14px; border-top: 1px solid var(--line); color: var(--muted); }

.tool-page .tool-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
}
.tool-page .tool-layout > article { padding: 26px; }
.tool-header { padding: 44px 0 28px; }
.tool-header h1 { font-size: clamp(2rem, 4vw, 3rem); margin: 14px 0 12px; }
.tool-header p { color: var(--muted); max-width: 820px; line-height: 1.8; }
.tool-panel + .tool-panel { margin-top: 18px; }
.form-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px;
}
.form-grid.one { grid-template-columns: 1fr; }
.form-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.field { display: grid; gap: 8px; }
.field label { font-weight: 700; }
.checkbox-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px;
}
.checkbox {
  display: flex; align-items: center; gap: 10px; padding: 12px 14px;
  border-radius: var(--radius-md); background: rgba(255,255,255,0.03); border: 1px solid var(--line);
}
.checkbox input { width: auto; }
.result-box {
  padding: 18px; min-height: 170px;
}
.result-box pre, .result-box code, .result-box textarea {
  width: 100%; min-height: 150px; white-space: pre-wrap; word-break: break-word;
  background: transparent; border: 0; color: var(--text); padding: 0; margin: 0;
}
.notice {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  color: var(--muted);
}
.notice.success { border-color: rgba(29,191,115,0.35); color: #baf2d8; }
.notice.danger { border-color: rgba(255,95,118,0.35); color: #ffc2cb; }
.result-list { display: grid; gap: 12px; margin-top: 18px; }
.result-item {
  padding: 14px 16px; border-radius: var(--radius-md); background: rgba(255,255,255,0.03); border: 1px solid var(--line);
}
.dropzone {
  padding: 34px 24px; border-radius: var(--radius-lg); border: 1px dashed rgba(255,255,255,0.22);
  background: rgba(255,255,255,0.02); text-align: center;
}
.dropzone.dragover { border-color: rgba(35,89,255,0.65); background: rgba(35,89,255,0.08); }
.file-list { display: grid; gap: 10px; margin-top: 16px; }
.file-item {
  display: flex; justify-content: space-between; gap: 12px; align-items: center;
  padding: 13px 16px; border-radius: var(--radius-md); background: rgba(255,255,255,0.03); border: 1px solid var(--line);
}
.file-meta { color: var(--muted); font-size: 0.92rem; }
.preview-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-top: 18px; }
.preview-card { padding: 14px; border-radius: var(--radius-lg); background: rgba(255,255,255,0.03); border: 1px solid var(--line); }
.preview-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 12px; }
.side-stack { display: grid; gap: 18px; }
.sidebar-card { padding: 22px; }
.sidebar-card h2, .sidebar-card h3 { margin-top: 0; }
.sidebar-card p, .sidebar-card li { color: var(--muted); line-height: 1.8; }
.kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  padding: 4px 7px; border-radius: 8px; background: rgba(255,255,255,0.06); border: 1px solid var(--line);
}
.toggle-line { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.muted-text { color: var(--muted); }
.hidden { display: none !important; }

@media (max-width: 980px) {
  .hero-grid, .two-col, .tool-page .tool-layout, .footer-grid, .card-grid, .contact-grid {
    grid-template-columns: 1fr;
  }
  .section-heading { flex-direction: column; align-items: start; }
  .main-nav {
    position: absolute; top: calc(100% + 8px); right: 16px; left: 16px;
    background: #0f1830; border: 1px solid var(--line); border-radius: var(--radius-lg);
    padding: 12px; display: none; flex-direction: column; align-items: stretch;
  }
  .main-nav.is-open { display: flex; }
  .nav-toggle {
    display: inline-flex; align-items: center; justify-content: center; width: 52px; height: 46px;
    border-radius: 14px; border: 1px solid var(--line); background: rgba(255,255,255,0.04); color: var(--text);
  }
}

@media (max-width: 720px) {
  .hero { padding-top: 52px; }
  .stats, .form-grid, .form-grid.three, .checkbox-grid { grid-template-columns: 1fr; }
  .tool-card, .hero-card, .content-card, .tool-page .tool-layout > article { padding: 22px; }
  .section { padding: 56px 0; }
}