/* About / landing page */
.ab { max-width: 1080px; margin: 0 auto; padding: 8px 20px 40px; }
.ab-hl { color: var(--brand-dark, #1a56c4); }
[data-theme="dark"] .ab-hl { color: var(--brand, #4285f4); }
.ab h1 { font-size: clamp(1.9rem, 4.6vw, 3.1rem); line-height: 1.1; letter-spacing: -.02em; font-weight: 800; margin: 14px 0 16px; }
.ab h2 { font-size: clamp(1.5rem, 3.2vw, 2.2rem); line-height: 1.18; letter-spacing: -.015em; font-weight: 800; margin: 0 0 12px; }
.ab h3 { margin: 0; }

/* hero */
.ab-hero { text-align: center; padding: 36px 0 24px; }
.ab-kicker { display: inline-flex; align-items: center; gap: 6px; background: color-mix(in srgb, var(--brand, #4285f4) 14%, var(--card, #fff)); color: var(--text); border: 1px solid color-mix(in srgb, var(--brand, #4285f4) 35%, transparent); padding: 6px 14px; border-radius: 999px; font-size: .78rem; font-weight: 700; letter-spacing: .03em; }
.ab-lead { max-width: 780px; margin: 0 auto 26px; font-size: 1.05rem; line-height: 1.7; color: var(--muted); }
.ab-tool { max-width: 780px; margin: 0 auto; padding: 18px; background: var(--card, #fff); border: 1px solid var(--border); border-radius: 22px; box-shadow: 0 18px 44px -18px rgba(35,31,31,.25); text-align: left; }
.ab-inputwrap { display: flex; align-items: center; gap: 10px; border: 2px solid var(--border); border-radius: 14px; padding: 0 16px; background: var(--bg); transition: border-color .15s, box-shadow .15s; color: var(--muted); }
.ab-inputwrap:focus-within { border-color: var(--brand, #4285f4); box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand, #4285f4) 22%, transparent); }
.ab-inputwrap input { flex: 1; border: 0; background: transparent; padding: 16px 0; font: 500 1rem Montserrat, sans-serif; color: var(--text); min-width: 0; outline: none; box-shadow: none; }
.ab-btns { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.ab-tool .ab-btns .btn, .ab-cta .ab-btns .btn { flex: 1 1 200px; justify-content: center; text-align: center; padding: 14px 20px; }
.ab-micro { margin: 12px 2px 0; font-size: .82rem; color: var(--muted); text-align: center; }

/* sections */
.ab-sec { padding: 52px 0 6px; }
.ab-sub { max-width: 780px; color: var(--muted); line-height: 1.7; margin: 0 0 28px; font-size: 1.02rem; }

/* feature cards */
.ab-grid { display: grid; gap: 18px; grid-template-columns: repeat(2, 1fr); }
.ab-card { background: var(--card, #fff); border: 1px solid var(--border); border-radius: 20px; padding: 24px; transition: transform .18s, box-shadow .18s, border-color .18s; display: flex; flex-direction: column; }
.ab-card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--brand, #4285f4) 55%, var(--border)); box-shadow: 0 16px 36px -20px rgba(35,31,31,.35); }
.ab-card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.ab-ico { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; background: var(--brand, #4285f4); color:var(--brand-ink,#fff); }
.ab-num { font-weight: 800; font-size: 2.2rem; line-height: 1; color: color-mix(in srgb, var(--text) 10%, transparent); }
.ab-label { margin: 0 0 4px; font-size: .74rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--brand-dark, #1a56c4); }
.ab-card h3 { font-size: 1.15rem; line-height: 1.3; font-weight: 800; margin-bottom: 10px; }
.ab-card p { margin: 0 0 10px; color: var(--muted); line-height: 1.65; font-size: .95rem; }
.ab-list { list-style: none; padding: 0; margin: 6px 0 0; display: grid; gap: 10px; }
.ab-list li { display: flex; gap: 10px; align-items: flex-start; font-size: .92rem; line-height: 1.55; color: var(--muted); }
.ab-list li svg { flex: none; margin-top: 3px; color: var(--brand, #4285f4); }
.ab-list strong { color: var(--text); }

/* comparison */
.ab-yes { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; color: #15803d; }
[data-theme="dark"] .ab-yes { color: #4ade80; }
.ab-muted { color: var(--muted); }
.ab-fine { font-size: .76rem; color: var(--muted); margin: -12px 0 0; }
.ab .bt-scroll { margin: 8px 0 24px; }

/* steps */
.ab-steps { list-style: none; counter-reset: s; padding: 0; margin: 24px 0 0; display: grid; gap: 14px; grid-template-columns: repeat(3, 1fr); }
.ab-steps li { display: flex; flex-direction: column; gap: 12px; background: var(--card, #fff); border: 1px solid var(--border); border-radius: 20px; padding: 24px; }
.ab-step-n { width: 40px; height: 40px; border-radius: 50%; background: #1f2937; color: #fff; display: grid; place-items: center; font-weight: 800; }
[data-theme="dark"] .ab-step-n { background: var(--brand, #4285f4); color:var(--brand-ink,#fff); }
.ab-steps h3 { font-size: 1.05rem; font-weight: 800; margin-bottom: 8px; line-height: 1.3; }
.ab-steps p { margin: 0; color: var(--muted); line-height: 1.65; font-size: .94rem; }

/* faq */
.ab-faq { display: grid; gap: 10px; max-width: 860px; margin-top: 22px; }
.ab-faq details { background: var(--card, #fff); border: 1px solid var(--border); border-radius: 16px; padding: 0 20px; transition: border-color .15s; }
.ab-faq details[open] { border-color: color-mix(in srgb, var(--brand, #4285f4) 60%, var(--border)); }
.ab-faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 14px; padding: 18px 0; }
.ab-faq summary::-webkit-details-marker { display: none; }
.ab-faq summary h3 { font-size: 1rem; font-weight: 700; line-height: 1.4; }
.ab-faq p { margin: 0 0 18px; color: var(--muted); line-height: 1.7; }
.ab-plus { flex: none; width: 28px; height: 28px; border-radius: 50%; background: color-mix(in srgb, var(--brand, #4285f4) 16%, var(--card)); position: relative; }
.ab-plus::before, .ab-plus::after { content: ""; position: absolute; left: 50%; top: 50%; width: 12px; height: 2px; background: var(--text); transform: translate(-50%, -50%); transition: transform .2s; }
.ab-plus::after { transform: translate(-50%, -50%) rotate(90deg); }
details[open] .ab-plus::after { transform: translate(-50%, -50%) rotate(0); }
.ab summary:focus-visible, .ab a:focus-visible, .ab button:focus-visible { outline: 3px solid var(--brand, #4285f4); outline-offset: 3px; border-radius: 10px; }

/* CTA + about */
.ab-cta { margin-top: 56px; padding: 40px 28px; border-radius: 26px; text-align: center; background: #1f2937; color: #fff; }
.ab-cta h2 { color: #fff; }
.ab-cta p { max-width: 640px; margin: 0 auto 22px; color: #d6d2d0; line-height: 1.7; }
.ab-cta .ab-btns { justify-content: center; max-width: 520px; margin: 0 auto; }
.ab-cta .btn-secondary { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.4); }
.ab-cta .btn-secondary:hover { background: rgba(255,255,255,.12); }
.ab-about { max-width: 780px; margin: 44px auto 0; text-align: center; }
.ab-about h2 { font-size: 1.2rem; }
.ab-about p { color: var(--muted); line-height: 1.75; }

@media (max-width: 860px) {
  .ab-grid, .ab-steps { grid-template-columns: 1fr; }
  .ab { padding-inline: 16px; }
  .ab-hero { padding-top: 20px; }
  .ab-tool { padding: 14px; border-radius: 18px; }
  .ab-cta { padding: 32px 18px; }
}
@media (prefers-reduced-motion: reduce) { .ab-card { transition: none; } .ab-card:hover { transform: none; } }