/* ============================================================
   deepseekru.ai — SMACSS + Brutalist/Editorial
   Palette: #fff (bg), #111 (text), #2563EB (accent red-orange)
   ============================================================ */

/* --- Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  background: #fff;
  color: #111;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* --- Layout --- */
.l-wrap    { max-width: 1160px; margin: 0 auto; padding: 0 32px; }
.l-header  { border-bottom: 4px solid #111; background: #fff; position: sticky; top: 0; z-index: 100; }
.l-nav     { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 24px; }
.l-footer  { border-top: 4px solid #111; padding: 48px 0 32px; background: #111; color: #fff; }
.l-section { padding: 96px 0; }
.l-section--alt { background: #f5f5f5; }
.l-section--dark { background: #111; color: #fff; }
.l-grid-2  { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.l-grid-3  { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }

/* --- Modules --- */
.m-logo {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 22px; font-weight: 900; letter-spacing: -1px;
  text-transform: uppercase; color: #111;
  display: flex; align-items: center; gap: 6px;
}
.m-logo__accent { color: #2563EB; }
.m-logo--inv .m-logo__text { color: #fff; }

.m-nav-links { display: flex; align-items: center; gap: 0; list-style: none; }
.m-nav-link {
  font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em;
  padding: 10px 18px; border-left: 2px solid #111;
  transition: all 150ms ease; color: #444;
}
.m-nav-link:hover { background: #111; color: #fff; }
.m-nav-link:first-child { border-left: none; }

.m-btn {
  display: inline-block; padding: 14px 28px; font-size: 15px; font-weight: 900;
  text-transform: uppercase; letter-spacing: .05em; cursor: pointer; border: none;
  font-family: inherit; transition: all 150ms ease; text-decoration: none;
}
.m-btn--primary { background: #2563EB; color: #fff; }
.m-btn--primary:hover { background: #111; }
.m-btn--outline { background: transparent; border: 3px solid #111; color: #111; }
.m-btn--outline:hover { background: #111; color: #fff; }
.m-btn--inv { background: #2563EB; color: #fff; }
.m-btn--inv:hover { background: #fff; color: #111; }

.m-kicker {
  font-size: 11px; font-weight: 900; text-transform: uppercase; letter-spacing: .12em;
  color: #2563EB; margin-bottom: 14px; display: block;
}

.m-card {
  border: 3px solid #111; padding: 32px 28px;
  transition: all 150ms ease; background: #fff;
}
.m-card:hover { background: #2563EB; color: #fff; }
.m-card:hover .m-card__desc { color: rgba(255,255,255,0.8); }
.m-card__icon { font-size: 28px; margin-bottom: 16px; }
.m-card__title { font-size: 20px; font-weight: 900; margin-bottom: 10px; letter-spacing: -.02em; }
.m-card__desc { font-size: 14px; line-height: 1.65; color: #444; }

.m-hero-title {
  font-size: clamp(52px, 7vw, 96px); font-weight: 900;
  line-height: .98; letter-spacing: -.04em; margin-bottom: 32px;
  text-transform: uppercase;
}
.m-hero-title__accent { color: #2563EB; display: block; }

.m-stat-block { border: 3px solid #111; padding: 28px; }
.m-stat-val { font-size: clamp(36px, 5vw, 64px); font-weight: 900; letter-spacing: -.04em; color: #2563EB; }
.m-stat-lbl { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: #666; margin-top: 6px; }

.m-table { width: 100%; border-collapse: collapse; }
.m-table th { background: #111; color: #fff; padding: 14px 18px; text-align: left; font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.m-table td { padding: 14px 18px; border-bottom: 2px solid #111; font-size: 15px; }
.m-table tr:hover td { background: #fff0ec; }
.m-table--highlight td { color: #2563EB; font-weight: 700; }

.m-quote { border-left: 6px solid #2563EB; padding: 24px 28px; background: #fff; }
.m-quote__text { font-size: 22px; font-weight: 700; line-height: 1.4; letter-spacing: -.01em; }
.m-quote__attr { font-size: 13px; color: #666; margin-top: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; }

.m-tag { display: inline-block; border: 2px solid #111; padding: 6px 14px; font-size: 13px; font-weight: 700; margin: 4px; }
.m-tag:hover { background: #2563EB; border-color: #2563EB; color: #fff; }

.m-burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.m-burger span { display: block; width: 24px; height: 3px; background: #111; }

.m-mobile-nav { display: none; flex-direction: column; border-top: 3px solid #111; }
.m-mobile-nav.is-open { display: flex; }
.m-mobile-nav a { padding: 14px 16px; font-size: 16px; font-weight: 700; text-transform: uppercase; border-bottom: 2px solid #111; }

/* --- States --- */
.is-accent { color: #2563EB; }
.is-bold { font-weight: 900; }
.is-center { text-align: center; }
.is-hidden { display: none; }

/* --- FAQ --- */
.m-faq-item { border: 3px solid #111; margin-bottom: -3px; }
.m-faq-q { width: 100%; text-align: left; padding: 20px 24px; background: none; border: none; font-size: 16px; font-weight: 700; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-family: inherit; }
.m-faq-q:hover { background: #2563EB; color: #fff; }
.m-faq-q .is-arrow { font-size: 20px; font-weight: 900; }
.m-faq-a { max-height: 0; overflow: hidden; padding: 0 24px; font-size: 15px; color: #444; line-height: 1.7; transition: max-height .3s ease, padding .3s ease; }
.m-faq-a.is-open { max-height: 300px; padding: 0 24px 20px; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .l-grid-2 { grid-template-columns: 1fr; }
  .l-grid-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .l-section { padding: 64px 0; }
  .m-nav-links { display: none; }
  .m-burger { display: flex; }
  .l-grid-3 { grid-template-columns: 1fr; }
  .m-hero-title { font-size: clamp(40px, 12vw, 72px); }
}