/* ============================================================
   FBATools / DengTTSTools shared stylesheet
   2026-06-26 v3 —vivid gradient hero, glass calc window, color-edge tool cards
   ============================================================ */

:root {
  /* base typography + spacing (kept stable for subpages) */
  --bg:           #FBFBFA;
  --surface:      #FFFFFF;
  --surface-soft: #F7F6F3;
  --ink:          #2F3437;
  --ink-soft:     #787774;
  --ink-dim:      #B4B2AD;
  --line:         #EAEAEA;
  --line-soft:    #F0EFEC;
  --accent:       #111111;
  --accent-2:     #333333;

  --font-display: 'Newsreader', 'Lyon Text', 'Instrument Serif', Georgia, serif;
  --font-body:    'Geist', 'Inter Tight', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:    'Geist Mono', 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --r-sm: 4px;
  --r-md: 6px;
  --r-lg: 12px;

  --s-1: 4px; --s-2: 8px; --s-3: 12px; --s-4: 16px;
  --s-5: 24px; --s-6: 32px; --s-7: 48px; --s-8: 64px; --s-9: 96px; --s-10: 128px;

  --max-w: 1080px;
  --content-w: 720px;
}

/* ----- Home page theme overrides (gradient + dark hero) ----- */
body.home {
  --bg:           #0B0B0F;
  --surface:      #FFFFFF;
  --surface-soft: #F7F6F3;
  --ink:          #111114;
  --ink-soft:     #5A5A66;
  --ink-dim:      #9B9BAA;
  --line:         #ECECEC;
  --line-soft:    #F4F4F2;
  --accent:       #111114;
  --accent-2:     #333339;
  --font-display: 'Newsreader', 'Lyon Text', 'Instrument Serif', Georgia, serif;
  --font-body:    'Geist', 'Inter Tight', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:    'Geist Mono', 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
a {
  color: inherit;
  text-decoration: none;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color .15s ease;
}
a:hover { color: var(--accent); text-decoration: underline; text-decoration-color: var(--line); }
::selection { background: #111; color: #fff; }
body.home ::selection { background: #FF7A45; color: #fff; }
img, svg { display: block; max-width: 100%; height: auto; }

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  top: -40px;
  left: 16px;
  padding: 8px 14px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--r-sm);
  font-size: 14px;
  z-index: 100;
  transition: top .15s ease;
}
.skip-link:focus { top: 16px; }

/* ---------- Layout ---------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
main { scroll-margin-top: 80px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 251, 250, 0.85);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line-soft);
}
body.home .site-header {
  background: rgba(11, 11, 15, 0.55);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  backdrop-filter: saturate(160%) blur(14px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}
body.home .header-inner { padding: 16px 0; }
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
body.home .logo { color: #fff; }
.logo img, .logo svg { width: 28px; height: 28px; border-radius: 7px; }
.main-nav {
  display: flex;
  gap: 4px;
  font-size: 14px;
}
.main-nav a {
  color: var(--ink-soft);
  padding: 8px 12px;
  border-radius: var(--r-sm);
  transition: color .15s ease, background .15s ease;
  text-decoration: none;
}
.main-nav a:hover {
  color: var(--ink);
  background: var(--surface-soft);
  text-decoration: none;
}
.main-nav a[aria-current="page"] {
  color: var(--ink);
  background: var(--surface-soft);
}
body.home .main-nav a { color: rgba(255, 255, 255, 0.72); }
body.home .main-nav a:hover { color: #fff; background: rgba(255, 255, 255, 0.08); }
body.home .main-nav a[aria-current="page"] { color: #fff; background: rgba(255, 255, 255, 0.1); }

@media (max-width: 640px) {
  .main-nav { gap: 0; }
  .main-nav a { padding: 6px 8px; font-size: 13px; }
  .header-inner { padding: 14px 0; }
}

/* ---------- Subpage primitives (about / blog / tools) ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--tag-green-fg, #346538);
  background: var(--tag-green-bg, #EDF3EC);
  padding: 5px 10px;
  border-radius: 9999px;
  margin-bottom: var(--s-5);
}

/* ============================================================
   HOME PAGE —v3 vivid redesign
   ============================================================ */
body.home { color: #111114; overflow-x: hidden; }

/* ----- Home hero: vibrant gradient, centered text, glass calc preview ----- */
.hero-v3 {
  position: relative;
  padding: 140px 0 100px;
  color: #fff;
  text-align: center;
  isolation: isolate;
  overflow: hidden;
}
.hero-v3::before {
  content: "";
  position: absolute; inset: 0;
  z-index: -2;
  /* brand-driven gradient; sites override --hero-grad-1..4 */
  background:
    radial-gradient(80% 60% at 50% 0%, var(--hero-glow-1, #FF7A45) 0%, transparent 60%),
    radial-gradient(60% 50% at 15% 30%, var(--hero-glow-2, #FF4D8D) 0%, transparent 55%),
    radial-gradient(70% 60% at 90% 40%, var(--hero-glow-3, #8B5CF6) 0%, transparent 60%),
    radial-gradient(80% 50% at 50% 100%, var(--hero-glow-4, #1E1B4B) 0%, transparent 70%),
    linear-gradient(180deg, #0B0B0F 0%, #14121E 60%, #0B0B0F 100%);
}
.hero-v3::after {
  content: "";
  position: absolute; inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 35%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 35%, #000 30%, transparent 80%);
  pointer-events: none;
}
.hero-v3 .container { max-width: 1180px; }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px 7px 8px;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: #fff;
  letter-spacing: 0.02em;
}
.hero-eyebrow .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #4ADE80;
  box-shadow: 0 0 12px #4ADE80;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.025em;
  font-weight: 500;
  margin: 24px auto 0;
  max-width: 980px;
  color: #fff;
}
.hero-title em {
  font-style: italic;
  background: linear-gradient(135deg, #FFD1A8 0%, #FF7A45 50%, #FF4D8D 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lede {
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.78);
  max-width: 640px;
  margin: 20px auto 0;
}
.hero-cta-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin: 32px 0 56px;
  flex-wrap: wrap;
}

/* glass calculator preview window */
.calc-window {
  position: relative;
  max-width: 880px;
  margin: 0 auto;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(30, 27, 75, 0.88));
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  box-shadow:
    0 30px 80px -20px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(255, 255, 255, 0.04) inset,
    0 1px 0 rgba(255, 255, 255, 0.1) inset;
  overflow: hidden;
  text-align: left;
}
.calc-titlebar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.25);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.calc-titlebar .traffic {
  display: flex; gap: 6px;
}
.calc-titlebar .traffic span {
  width: 11px; height: 11px; border-radius: 50%;
  background: #FF5F57;
  box-shadow: 18px 0 0 #FEBC2E, 36px 0 0 #28C840;
}
.calc-titlebar .calc-name {
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
  margin-left: 6px;
}
.calc-titlebar .calc-badge {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: #4ADE80;
  background: rgba(74, 222, 128, 0.12);
  border: 1px solid rgba(74, 222, 128, 0.25);
  padding: 3px 8px;
  border-radius: 9999px;
}
.calc-body {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0;
}
@media (max-width: 720px) {
  .calc-body { grid-template-columns: 1fr; }
}
.calc-inputs,
.calc-results {
  padding: 28px 28px 32px;
}
.calc-inputs { border-right: 1px solid rgba(255, 255, 255, 0.08); }
@media (max-width: 720px) {
  .calc-inputs { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
}
.calc-field { margin-bottom: 16px; }
.calc-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 6px;
}
.calc-field .input {
  display: flex; align-items: center;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  padding: 14px 18px;
  min-height: 48px;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.3);
  font-family: var(--font-mono);
  font-size: 15px;
  color: #fff;
}
.calc-field .input .prefix { color: rgba(255, 255, 255, 0.5); margin-right: 4px; }

.calc-results {
  display: flex; flex-direction: column;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 100%);
}
.calc-result-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
  font-family: var(--font-mono);
  font-size: 14px;
}
.calc-result-row:last-child { border-bottom: 0; }
.calc-result-row .lbl { color: rgba(255, 255, 255, 0.8); }
.calc-result-row .val { color: #fff; font-weight: 500; }
.calc-result-row.highlight {
  margin-top: auto;
  padding: 18px 20px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(255, 122, 69, 0.18), rgba(255, 77, 141, 0.18));
  border: 1px solid rgba(255, 122, 69, 0.4);
  font-size: 16px;
}
.calc-result-row.highlight .lbl { color: #FFD1A8; font-family: var(--font-body); font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; }
.calc-result-row.highlight .val { color: #fff; font-size: 22px; font-weight: 600; }

.hero-meta {
  margin: 32px 0 0;
  display: inline-flex; gap: 14px; align-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  flex-wrap: wrap;
  justify-content: center;
}
.hero-meta .dot-sep { width: 4px; height: 4px; border-radius: 50%; background: rgba(255, 255, 255, 0.3); }

/* ----- Buttons (vivid) ----- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn .arr { transition: transform .2s ease; }
.btn:hover .arr { transform: translateX(3px); }

.btn-primary {
  background: #fff;
  color: #111114;
  box-shadow: 0 10px 30px -8px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.5) inset;
}
.btn-primary:hover {
  background: #fff;
  color: #111114;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 14px 36px -8px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.5) inset;
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  text-decoration: none;
  border-color: rgba(255, 255, 255, 0.24);
}

/* ----- Home sections ----- */
.home-section {
  padding: 96px 0;
  background: #FFFFFF;
}
.home-section.alt { background: #F7F6F3; }
.home-section.dark { background: #0B0B0F; color: #fff; }
.home-section .container { max-width: 1180px; }

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--brand-1, #F97316);
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.6vw, 2.8rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 500;
  margin: 0 0 16px;
  max-width: 720px;
}
.section-sub {
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 640px;
  margin: 0 0 56px;
}
.home-section.dark .section-title { color: #FFFFFF; }
.home-section.dark .section-sub { color: rgba(255, 255, 255, 0.7); }

/* ----- Bento: gapless color-edge grid ----- */
.bento-v3 {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-auto-flow: dense;
  gap: 16px;
}
@media (max-width: 900px) {
  .bento-v3 { grid-template-columns: repeat(2, 1fr); }
}
.bento-card {
  position: relative;
  padding: 28px;
  background: #fff;
  border-radius: 16px;
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  min-height: 240px;
  display: flex; flex-direction: column;
}.bento-card.card-short { min-height: 200px; }
.bento-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px -16px rgba(15, 15, 30, 0.18);
  border-color: transparent;
}
.bento-card.span-4 { grid-column: span 4; }
.bento-card.span-3 { grid-column: span 3; }
.bento-card.span-2 { grid-column: span 2; }
@media (max-width: 900px) {
  .bento-card.span-4,
  .bento-card.span-3,
  .bento-card.span-2 { grid-column: span 2; }
}
.bento-card .num {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  margin-bottom: 18px;
}
.bento-card h3 { color: #111114; }
.bento-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 1.2;
  letter-spacing: -0.015em;
  font-weight: 500;
  margin: 0 0 10px;
  color: var(--ink);
}
.bento-card p {
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0;
}
.bento-card .card-edge {
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--brand-1, #F97316), var(--brand-2, #DB2777));
  opacity: 0.9;
}
.bento-card .card-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand-1, #F97316), var(--brand-2, #DB2777));
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  margin-bottom: 18px;
}
.bento-card .card-icon svg { width: 20px; height: 20px; }

/* ----- Tool cards grid (color edge variant) ----- */
.tools-v3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 900px) {
  .tools-v3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .tools-v3 { grid-template-columns: 1fr; }
}
.tool-v3 {
  position: relative;
  display: flex; flex-direction: column;
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  text-decoration: none;
  color: inherit;
  transition: all .2s ease;
  min-height: 240px;
}
.tool-v3::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--tool-edge, linear-gradient(90deg, #F97316, #DB2777));
  border-radius: 16px 16px 0 0;
}
.tool-v3:hover {
  text-decoration: none;
  transform: translateY(-3px);
  box-shadow: 0 24px 50px -20px rgba(15, 15, 30, 0.22);
  border-color: transparent;
}
.tool-v3 .tool-icon {
  width: 44px; height: 44px;
  border-radius: 11px;
  background: var(--tool-tint, rgba(249, 115, 22, 0.1));
  color: var(--tool-color, #F97316);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.tool-v3 .tool-icon svg { width: 22px; height: 22px; }
.tool-v3 h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  line-height: 1.2;
  letter-spacing: -0.015em;
  font-weight: 500;
  margin: 0 0 8px;
  color: var(--ink);
}
.tool-v3 p {
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink-soft);
  margin: 0 0 18px;
  flex: 1;
}
.tool-v3 .arrow {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 500;
  color: var(--tool-color, #F97316);
}
.tool-v3 .arrow svg { transition: transform .2s ease; }
.tool-v3:hover .arrow svg { transform: translateX(4px); }

/* ----- FAQ (clean accordion) ----- */
.faq-v3 {
  max-width: 760px;
  margin: 0 auto;
}
.faq-v3 details {
  border-bottom: 1px solid var(--line);
}
.faq-v3 summary {
  list-style: none;
  cursor: pointer;
  padding: 24px 0;
  display: flex; justify-content: space-between; align-items: center; gap: 24px;
  font-family: var(--font-display);
  font-size: 1.2rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
  font-weight: 500;
  color: var(--ink);
  transition: color .15s ease;
}
.faq-v3 summary::-webkit-details-marker { display: none; }
.faq-v3 summary:hover { color: var(--brand-1, #F97316); }
.faq-v3 summary .sign {
  width: 28px; height: 28px;
  flex-shrink: 0;
  position: relative;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: all .2s ease;
}
.faq-v3 summary .sign::before,
.faq-v3 summary .sign::after {
  content: "";
  position: absolute;
  background: var(--ink);
  transition: transform .25s ease;
}
.faq-v3 summary .sign::before {
  top: 50%; left: 7px; right: 7px;
  height: 1.5px;
  transform: translateY(-50%);
}
.faq-v3 summary .sign::after {
  left: 50%; top: 7px; bottom: 7px;
  width: 1.5px;
  transform: translateX(-50%);
}
.faq-v3 details[open] summary .sign::after { transform: translateX(-50%) scaleY(0); }
.faq-v3 details[open] summary .sign { background: var(--brand-1, #F97316); border-color: var(--brand-1, #F97316); }
.faq-v3 details[open] summary .sign::before { background: #fff; }
.faq-v3 .answer {
  padding: 0 0 24px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink-soft);
  max-width: 64ch;
}
.home-section.dark .faq-v3 summary { color: #fff; }
.home-section.dark .faq-v3 summary .sign { border-color: rgba(255, 255, 255, 0.2); }
.home-section.dark .faq-v3 summary .sign::before { background: #fff; }
.home-section.dark .faq-v3 details { border-color: rgba(255, 255, 255, 0.1); }
.home-section.dark .faq-v3 .answer { color: rgba(255, 255, 255, 0.7); }

/* ----- Trust strip (subtle) ----- */
.trust-strip {
  display: flex; gap: 28px; flex-wrap: wrap;
  align-items: center; justify-content: center;
  padding: 32px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}
.trust-strip span { display: inline-flex; align-items: center; gap: 8px; }
.trust-strip .check { color: var(--brand-1, #F97316); }

/* ---------- Footer (kept from before) ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 0;
  padding: var(--s-8) 0 var(--s-6);
  background: var(--surface-soft);
}
body.home .site-footer { background: #0B0B0F; color: rgba(255, 255, 255, 0.6); border-top: 1px solid rgba(255, 255, 255, 0.08); }
.footer-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px var(--s-7);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--s-7);
}
@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--s-5); }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}
.footer-brand .logo { margin-bottom: var(--s-3); color: var(--ink); }
body.home .footer-brand .logo { color: #fff; }
.footer-brand p {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0;
  max-width: 32ch;
  line-height: 1.55;
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  margin: 0 0 var(--s-4);
  font-weight: 500;
}
body.home .footer-col h4 { color: rgba(255, 255, 255, 0.45); }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { font-size: 14px; color: var(--ink); text-decoration: none; }
.footer-col a:hover { color: var(--accent); text-decoration: underline; text-decoration-color: var(--line); }
body.home .footer-col a { color: rgba(255, 255, 255, 0.85); }
body.home .footer-col a:hover { color: #fff; }
.copyright {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--s-5) 24px 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-soft);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
body.home .copyright { border-top: 1px solid rgba(255, 255, 255, 0.08); color: rgba(255, 255, 255, 0.5); }
.copyright .links { display: flex; gap: 16px; }
.copyright .links a { color: var(--ink-soft); }
.copyright .links a:hover { color: var(--ink); }
body.home .copyright .links a { color: rgba(255, 255, 255, 0.5); }
body.home .copyright .links a:hover { color: #fff; }

/* ---------- Print ---------- */
@media print {
  body { background: #fff; color: #000; }
  .site-header, .site-footer, .skip-link, .cta-row { display: none; }
  a { color: #000; text-decoration: underline; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------- Focus ---------- */
:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
  border-radius: 2px;
}
body.home :focus-visible { outline-color: #fff; }


/* ============================================================
   v3 ADDITIVE —hero stats, kbd, hover tilt, tab demo upgrade
   Keeps all existing classes intact.
   ============================================================ */

/* kbd badge */
.kbd {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 22px; height: 22px; padding: 0 6px;
  font-family: var(--font-mono);
  font-size: .72rem; font-weight: 500;
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-bottom-width: 2px;
  border-radius: 4px;
  vertical-align: middle;
  line-height: 1;
}

/* hero stats row */
.hero-stats {
  display: flex; flex-wrap: wrap; gap: 36px;
  margin: 40px 0 0;
  padding: 24px 28px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  max-width: 880px; margin-left: auto; margin-right: auto;
  font-family: var(--font-mono);
  backdrop-filter: blur(8px);
}
.hero-stat { flex: 1; min-width: 120px; }
.hero-stat .n {
  font-size: 1.6rem; font-weight: 600; color: #fff;
  display: block; line-height: 1.1;
  letter-spacing: -0.02em;
}
.hero-stat .n .unit { font-size: .8rem; color: rgba(255,255,255,0.55); margin-left: 2px; }
.hero-stat .l {
  font-size: .7rem; color: rgba(255,255,255,0.55);
  letter-spacing: .1em; text-transform: uppercase;
  margin-top: 6px; display: block;
}
.hero-stat .accent { color: var(--brand-1, #F97316); }

/* upgrade calc-window to be a tabbed demo */
.demo-tabs-bar {
  display: flex; align-items: center;
  background: rgba(0, 0, 0, 0.35);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0 16px 0 16px;
  gap: 4px;
}
.demo-tabs-bar .demo-traffic {
  display: flex; gap: 6px;
  padding: 12px 16px 12px 0;
  margin-right: 4px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}
.demo-tabs-bar .demo-traffic span {
  width: 11px; height: 11px; border-radius: 50%;
  background: #FF5F57;
  box-shadow: 18px 0 0 #FEBC2E, 36px 0 0 #28C840;
}
.demo-tab {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 16px;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  font-family: var(--font-mono);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  cursor: pointer;
  white-space: nowrap;
  transition: color .12s ease, border-color .12s ease;
}
.demo-tab:hover { color: rgba(255, 255, 255, 0.9); }
.demo-tab.is-active {
  color: #fff;
  border-bottom-color: var(--brand-1, #F97316);
}
.demo-tab .demo-tab-kbd { color: rgba(255, 255, 255, 0.35); margin-left: 4px; font-size: 11px; }
.demo-tabpanel { display: none; }
.demo-tabpanel.is-active { display: block; animation: tabfade .25s ease; }
@keyframes tabfade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

.demo-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 8px;
  background: rgba(74, 222, 128, 0.12);
  border: 1px solid rgba(74, 222, 128, 0.3);
  color: #4ADE80;
  border-radius: 9999px;
  font-family: var(--font-mono);
  font-size: 11px;
  margin-left: auto;
  padding: 12px 16px;
}
.demo-pill::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: #4ADE80; box-shadow: 0 0 6px #4ADE80;
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

/* code highlighting tokens for the demo */
.tok-str { color: #FFD1A8; }
.tok-num { color: #60A5FA; }
.tok-key { color: #C084FC; }
.tok-com { color: rgba(255, 255, 255, 0.4); font-style: italic; }
.tok-bool { color: #F472B6; }
.tok-pun { color: rgba(255, 255, 255, 0.6); }
.tok-fn  { color: #FBBF24; }
.tok-ok  { color: #4ADE80; font-weight: 600; }

/* tool-v3 hover tilt */
.tool-v3 { transform-style: preserve-3d; }
.tool-v3:hover { transform: translateY(-4px) rotateX(1.5deg); }

/* calculator result highlight with gradient */
.calc-result-row.highlight {
  background: linear-gradient(135deg, var(--brand-1, #F97316), var(--brand-2, #DB2777));
  color: #fff;
}
.calc-result-row.highlight .lbl,
.calc-result-row.highlight .val { color: #fff; }

/* make bento cards feel more "alive" on hover */
.bento-card { transform-style: preserve-3d; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.bento-card:hover { transform: translateY(-3px) rotateX(1deg); }

/* big stat counter on hover */
.bento-card .stat-big {
  display: block;
  font-family: var(--font-mono);
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--brand-1, #F97316);
  line-height: 1;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
/* ============================================================
   Tool pages: calculator layout + form + results + features
   ============================================================ */
.calc-page {
  padding-top: var(--s-7);
  padding-bottom: var(--s-8);
}
.calc-page > .eyebrow {
  margin-bottom: var(--s-3);
}
.calc-page h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.6vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
  font-weight: 500;
  margin: 0 0 12px;
}
.calc-page .subtitle {
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  line-height: 1.55;
  max-width: 68ch;
  margin: 0 0 var(--s-6);
}

.calc-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-5);
}
@media (min-width: 860px) {
  .calc-layout {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.calc-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
  box-shadow: 0 1px 2px rgba(15, 15, 30, 0.04);
}
.calc-card + .calc-card {
  margin-top: 0;
}
.calc-card h2 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: -0.015em;
  font-weight: 500;
  margin: 0 0 var(--s-4);
}

.form-row {
  margin-bottom: 16px;
}
.form-row label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin-bottom: 6px;
}
.form-row input,
.form-row select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 15px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.form-row input:focus,
.form-row select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(15, 15, 30, 0.08);
}
.form-row .hint {
  margin-top: 6px;
  color: var(--ink-dim);
  font-size: 13px;
  line-height: 1.45;
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 15px;
}
.result-row:last-child {
  border-bottom: 0;
}
.result-row .label {
  color: var(--ink-soft);
}
.result-row .value {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--ink);
  text-align: right;
}
.result-row.negative .value {
  color: #C0263A;
}
.result-row.highlight {
  margin-top: 10px;
  padding: 16px 18px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(17, 17, 20, 0.92), rgba(45, 35, 60, 0.92));
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #fff;
}
.result-row.highlight .label {
  color: rgba(255, 255, 255, 0.75);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.result-row.highlight .value {
  color: #fff;
  font-size: 20px;
  font-weight: 600;
}
@media (max-width: 480px) {
  .result-row.highlight .value {
    font-size: 18px;
  }
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  margin-bottom: var(--s-4);
}
.section-header h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: -0.015em;
  font-weight: 500;
  margin: 0;
}
.section-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-dim);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: var(--s-5);
}
@media (max-width: 900px) {
  .features { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .features { grid-template-columns: 1fr; }
}
.feature {
  padding: 18px;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  background: var(--surface);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.feature:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px -18px rgba(15, 15, 30, 0.18);
  border-color: transparent;
}
.feature .icon {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--brand-1, #111114);
  background: var(--surface-soft);
  padding: 6px 10px;
  border-radius: 9999px;
  display: inline-block;
  margin-bottom: 12px;
}
.feature h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  font-weight: 500;
  margin: 0 0 8px;
}
.feature p {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.55;
  margin: 0;
}

.faq {
  max-width: 760px;
  margin-top: var(--s-6);
}
.faq details {
  border-bottom: 1px solid var(--line);
}
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  font-family: var(--font-display);
  font-size: 1.15rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
  font-weight: 500;
  color: var(--ink);
  transition: color .15s ease;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary:hover {
  color: var(--brand-1, #111114);
}
.faq summary .sign {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--line);
  position: relative;
  flex-shrink: 0;
}
.faq summary .sign::before,
.faq summary .sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--ink);
  transform: translate(-50%, -50%);
  transition: transform .2s ease;
}
.faq summary .sign::before {
  width: 10px;
  height: 2px;
}
.faq summary .sign::after {
  width: 2px;
  height: 10px;
}
.faq details[open] summary .sign::after {
  transform: translate(-50%, -50%) rotate(90deg);
}
.faq details[open] summary .sign {
  border-color: var(--brand-1, #111114);
}
.faq details[open] summary {
  color: var(--brand-1, #111114);
}
.faq p {
  padding: 0 0 22px;
  color: var(--ink-soft);
  line-height: 1.6;
}

.source-note {
  color: var(--ink-dim);
  font-size: .78rem;
  font-family: var(--font-mono);
  margin-top: var(--s-4);
  line-height: 1.5;
}
.section-lede {
  color: var(--ink-soft);
  max-width: 65ch;
  line-height: 1.6;
  margin: 0 0 var(--s-5);
}


/* tool-page H1 (standalone, not inside .tool-header) */
body.tool-calc .tool-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 500;
  margin: 0 0 24px;
  color: #fff;
  max-width: 880px;
}

/* tool-page dark calculator shell */
body.tool-calc {
  --bg: #0B0B0F;
  --ink: #111114;
  --ink-soft: #9B9BAA;
  --ink-dim: #9B9BAA;
  --line: rgba(255, 255, 255, 0.1);
  --line-soft: rgba(255, 255, 255, 0.06);
  --accent: #F97316;
  --accent-2: #DB2777;
  --hero-glow-1: #FF7A45;
  --hero-glow-2: #FF4D8D;
  --hero-glow-3: #8B5CF6;
  --hero-glow-4: #1E1B4B;
  background: linear-gradient(180deg, #0B0B0F 0%, #14121E 60%, #0B0B0F 100%);
  color: #fff;
}

body.tool-calc .site-header {
  background: rgba(11, 11, 15, 0.55);
  border-bottom-color: rgba(255, 255, 255, 0.06);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
}
body.tool-calc .logo { color: #fff; }
body.tool-calc .main-nav a {
  color: rgba(255, 255, 255, 0.72);
}
body.tool-calc .main-nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}
body.tool-calc .main-nav a[aria-current="page"] {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

body.tool-calc main.tool-calc {
  position: relative;
  padding: 96px 0 64px;
  color: #fff;
  isolation: isolate;
  overflow: hidden;
}
body.tool-calc main.tool-calc::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(80% 60% at 50% 0%, var(--hero-glow-1, #FF7A45) 0%, transparent 60%),
    radial-gradient(60% 50% at 15% 30%, var(--hero-glow-2, #FF4D8D) 0%, transparent 55%),
    radial-gradient(70% 60% at 90% 40%, var(--hero-glow-3, #8B5CF6) 0%, transparent 60%),
    radial-gradient(80% 50% at 50% 100%, var(--hero-glow-4, #1E1B4B) 0%, transparent 70%),
    linear-gradient(180deg, #0B0B0F 0%, #14121E 60%, #0B0B0F 100%);
  pointer-events: none;
}
body.tool-calc main.tool-calc > .container { position: relative; }

body.tool-calc .tool-header {
  max-width: 880px;
  margin: 0 auto 28px;
  text-align: left;
}
body.tool-calc .tool-header .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px 7px 8px;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: #fff;
  letter-spacing: 0.02em;
  margin-bottom: 18px;
}
body.tool-calc .tool-header .eyebrow .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4ADE80;
  box-shadow: 0 0 12px #4ADE80;
}
body.tool-calc .tool-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.6vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
  font-weight: 500;
  margin: 0 0 12px;
  color: #fff;
}
body.tool-calc .tool-header .subtitle {
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  line-height: 1.55;
  max-width: 68ch;
  margin: 0;
}

.calc-window {
  position: relative;
  max-width: 880px;
  margin: 0 auto;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(30, 27, 75, 0.88));
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  box-shadow:
    0 30px 80px -20px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(255, 255, 255, 0.04) inset,
    0 1px 0 rgba(255, 255, 255, 0.1) inset;
  overflow: hidden;
  text-align: left;
}
.calc-titlebar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.25);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.calc-titlebar .traffic span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #FF5F57;
  box-shadow: 18px 0 0 #FEBC2E, 36px 0 0 #28C840;
}
.calc-titlebar .calc-name {
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
  margin-left: 6px;
}
.calc-titlebar .calc-badge {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: #4ADE80;
  background: rgba(74, 222, 128, 0.12);
  border: 1px solid rgba(74, 222, 128, 0.25);
  padding: 3px 8px;
  border-radius: 9999px;
}
.calc-body {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0;
}
@media (max-width: 720px) {
  .calc-body { grid-template-columns: 1fr; }
}
.calc-inputs,
.calc-results {
  padding: 28px 28px 32px;
}
.calc-inputs { border-right: 1px solid rgba(255, 255, 255, 0.08); }
@media (max-width: 720px) {
  .calc-inputs { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
}
.calc-field { margin-bottom: 16px; }
.calc-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 6px;
}
.calc-field .input,
body.tool-calc .form-row input,
body.tool-calc .form-row select {
  display: flex;
  align-items: center;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  padding: 14px 18px;
  min-height: 48px;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.3);
  font-family: var(--font-mono);
  font-size: 15px;
  color: #fff;
  width: 100%;
}
.calc-field .input .prefix { color: rgba(255, 255, 255, 0.5); margin-right: 4px; }
.calc-results {
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 100%);
}
.calc-result-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
  font-family: var(--font-mono);
  font-size: 14px;
}
.calc-result-row:last-child { border-bottom: 0; }
.calc-result-row .lbl { color: rgba(255, 255, 255, 0.8); }
.calc-result-row .val { color: #fff; font-weight: 500; }
.calc-result-row.highlight {
  margin-top: auto;
  padding: 18px 20px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(255, 122, 69, 0.18), rgba(255, 77, 141, 0.18));
  border: 1px solid rgba(255, 122, 69, 0.4);
  font-size: 16px;
}
.calc-result-row.highlight .lbl {
  color: #FFD1A8;
  font-family: var(--font-body);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.calc-result-row.highlight .val {
  color: #fff;
  font-size: 22px;
  font-weight: 600;
}

body.tool-calc .site-footer {
  background: #0B0B0F;
  color: rgba(255, 255, 255, 0.6);
  border-top-color: rgba(255, 255, 255, 0.08);
}
body.tool-calc .footer-brand .logo { color: #fff; }
body.tool-calc .footer-col h4 { color: rgba(255, 255, 255, 0.45); }
body.tool-calc .footer-col a { color: rgba(255, 255, 255, 0.75); }
body.tool-calc .footer-col a:hover { color: #fff; }
body.tool-calc .copyright { color: rgba(255, 255, 255, 0.45); }

@media (max-width: 720px) {
  body.tool-calc main.tool-calc { padding: 72px 0 48px; }
}

/* ===== Copy results button (deng/fbatools tool pages) ===== */
.calc-results-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--s-2);
}
.calc-results-title {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.6);
}
.copy-results-btn {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  padding: 6px 12px;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, transform .12s ease;
}
.copy-results-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--brand-1, #F97316);
}
.copy-results-btn:focus-visible {
  outline: 2px solid var(--brand-1, #F97316);
  outline-offset: 2px;
}
.copy-results-btn.copied {
  color: #4ADE80;
  border-color: #4ADE80;
  background: rgba(74, 222, 128, 0.08);
}

/* ===== Next step recommendation bar (deng/fbatools tool pages) ===== */
.nextstep {
  max-width: 880px;
  margin: var(--s-6) auto 0;
}
.nextstep-head {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--s-3);
}
.nextstep-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-3);
}
.nextstep-card {
  position: relative;
  display: block;
  padding: var(--s-4);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  text-decoration: none;
  color: #fff;
  transition: border-color .2s ease, background .2s ease, transform .2s ease, box-shadow .2s ease;
}
.nextstep-card:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: var(--brand-1, #F97316);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -12px rgba(0, 0, 0, 0.5);
  text-decoration: none;
  color: #fff;
}
.nextstep-name {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  color: #fff;
  margin-bottom: 4px;
  padding-right: 22px;
  letter-spacing: -0.01em;
}
.nextstep-desc {
  display: block;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.45;
}
.nextstep-arrow {
  position: absolute;
  top: var(--s-4); right: var(--s-4);
  color: rgba(255, 255, 255, 0.4);
  transition: color .2s ease, transform .2s ease;
}
.nextstep-card:hover .nextstep-arrow { color: var(--brand-1, #F97316); transform: translateX(3px); }
.nextstep-card:focus-visible { outline: 2px solid var(--brand-1, #F97316); outline-offset: 2px; }
@media (max-width: 720px) {
  .nextstep-grid { grid-template-columns: 1fr; }
}

/* ===== Email subscribe (deng/fbatools) ===== */
.subscribe-form {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}
.subscribe-form input[type=email] {
  flex: 1;
  min-width: 220px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 10px;
  font-family: var(--font-mono);
  font-size: 15px;
  color: #fff;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.subscribe-form input[type=email]::placeholder { color: rgba(255, 255, 255, 0.4); }
.subscribe-form input[type=email]:focus {
  outline: none;
  border-color: var(--brand-1, #F97316);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.2);
}
.subscribe-form .btn { flex-shrink: 0; }
.subscribe-done {
  font-family: var(--font-mono);
  font-size: 14px;
  color: #4ADE80;
  display: none;
  margin-top: 16px;
}
.subscribe-wrap.done .subscribe-form { display: none; }
.subscribe-wrap.done .subscribe-done { display: block; }

/* inline subscribe (tool pages, after next-step) */
.subscribe-inline {
  max-width: 880px;
  margin: var(--s-5) auto 0;
  padding: var(--s-4) var(--s-5);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
}
.subscribe-inline .si-label {
  font-family: var(--font-mono);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  margin: 0 0 10px;
}
.subscribe-inline .subscribe-form {
  margin: 0;
  max-width: none;
  justify-content: flex-start;
}
.subscribe-inline .subscribe-form input[type=email] { min-width: 180px; }
.subscribe-inline .subscribe-done { margin-top: 10px; }