/* ============================================================
   LeadUp AI — Blog shared styles
   Imported by every blog page. Builds on colors_and_type.css tokens.
   ============================================================ */

body { background: var(--bg-1); }

.container        { max-width: var(--container);        margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 780px;                   margin: 0 auto; padding: 0 24px; }
.container-prose  { max-width: var(--container-prose);  margin: 0 auto; padding: 0 24px; }

/* ---------- Reading progress bar ---------- */
.read-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--teal), var(--teal-hover));
  z-index: var(--z-header);
  box-shadow: 0 0 8px rgba(0,229,199,0.5);
  transition: width 80ms linear;
}

/* ---------- NAV ---------- */
.nav {
  position: sticky; top: 0; z-index: var(--z-header);
  background: rgba(10,15,13,0.72);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--border-1);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.nav-left { display: flex; align-items: center; gap: 28px; }
.nav-logo { filter: brightness(10); display: block; }
.nav-links { display: flex; gap: 2px; font-size: 13px; }
.nav-links a { color: var(--fg-3); padding: 7px 14px; border-radius: var(--r-md); font-weight: 500; text-decoration: none; transition: all 120ms var(--ease); }
.nav-links a:hover { color: var(--fg-1); background: var(--bg-4); }
.nav-links a.on { color: var(--fg-1); background: var(--bg-4); }
.nav-right { display: flex; align-items: center; gap: 8px; }
.nav-login { color: var(--fg-3); font-size: 13px; text-decoration: none; }
.nav-login:hover { color: var(--fg-1); }
.btn-sm { display: inline-flex; align-items: center; gap: 6px; background: var(--teal); color: #061210; font-weight: 600; font-size: 13px; padding: 8px 16px; border-radius: var(--r-lg); border: 0; cursor: pointer; text-decoration: none; }
.btn-sm:hover { background: var(--teal-hover); }

/* ---------- Chips ---------- */
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { font-family: var(--font-mono); font-size: 10px; padding: 3px 8px; border-radius: 9999px; font-weight: 500; letter-spacing: 0.04em; text-decoration: none; transition: all 120ms var(--ease); }
.chip-teal { background: var(--teal-tint); color: var(--teal); border: 1px solid rgba(0,229,199,0.2); }
.chip-neutral { background: var(--bg-4); color: var(--fg-3); border: 1px solid var(--border-1); }
a.chip:hover { border-color: var(--border-3); }

/* ---------- Filter tabs ---------- */
.filters { display: flex; gap: 6px; padding: 0 0 24px; border-bottom: 1px solid var(--border-1); margin-bottom: 32px; flex-wrap: wrap; }
.filter { font-family: var(--font-mono); font-size: 12px; padding: 6px 14px; border-radius: var(--r-full); background: var(--bg-3); border: 1px solid var(--border-1); color: var(--fg-3); cursor: pointer; font-weight: 500; letter-spacing: 0.04em; transition: all 120ms var(--ease); text-decoration: none; }
.filter:hover { border-color: var(--border-3); color: var(--fg-1); }
.filter.on { background: var(--teal-tint); border-color: rgba(0,229,199,0.25); color: var(--teal); }

/* ---------- Post cards ---------- */
.posts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.post { background: var(--bg-2); border: 1px solid var(--border-1); border-radius: var(--r-xl); overflow: hidden; transition: all 200ms var(--ease); text-decoration: none; color: inherit; display: flex; flex-direction: column; }
.post:hover { border-color: var(--border-3); transform: translateY(-2px); }
.post-img { height: 160px; background: var(--bg-3); position: relative; overflow: hidden; }
.post-img .grid-bg, .feat-img .grid-bg { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px); background-size: 24px 24px; }
.post-img .glow { position: absolute; width: 160px; height: 160px; border-radius: 50%; background: radial-gradient(circle, rgba(0,229,199,0.12), transparent 55%); filter: blur(16px); }
.post-img .num { position: absolute; bottom: 12px; right: 14px; font-family: var(--font-mono); font-size: 36px; font-weight: 700; color: rgba(255,255,255,0.04); letter-spacing: -0.03em; }
.post-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.post-body .chips { margin-bottom: 10px; }
.post-body h3 { font-size: 17px; font-weight: 600; letter-spacing: -0.015em; line-height: 1.2; margin: 0 0 8px; color: var(--fg-1); }
.post-body p { font-size: 13px; color: var(--fg-3); margin: 0; line-height: 1.5; flex: 1; }
.post-body .meta { display: flex; justify-content: space-between; align-items: center; margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--border-1); font-family: var(--font-mono); font-size: 10px; color: var(--fg-4); letter-spacing: 0.04em; }

/* ---------- Search box ---------- */
.search { display: flex; align-items: center; gap: 8px; background: var(--bg-3); border: 1px solid var(--border-1); border-radius: var(--r-lg); padding: 9px 14px; min-width: 280px; }
.search input { background: transparent; border: 0; outline: 0; color: var(--fg-1); font-size: 14px; flex: 1; }
.search input::placeholder { color: var(--fg-4); }
.search svg { color: var(--fg-4); width: 16px; height: 16px; flex-shrink: 0; }

/* ---------- Pagination ---------- */
.pagination { display: flex; justify-content: center; gap: 4px; }
.pg { min-width: 36px; height: 36px; padding: 0 6px; border-radius: var(--r-md); display: grid; place-items: center; font-size: 13px; font-weight: 500; color: var(--fg-3); cursor: pointer; transition: all 120ms var(--ease); text-decoration: none; }
.pg:hover { background: var(--bg-4); color: var(--fg-1); }
.pg.on { background: var(--teal-tint); color: var(--teal); }
.pg.arr { color: var(--fg-4); }

/* ---------- Avatars ---------- */
.av { border-radius: 50%; background: linear-gradient(135deg, #00E5C7, #0F1512); display: grid; place-items: center; color: #061210; font-weight: 700; flex-shrink: 0; }
.av-28 { width: 28px; height: 28px; font-size: 10px; }
.av-40 { width: 40px; height: 40px; font-size: 14px; }
.av-64 { width: 64px; height: 64px; font-size: 22px; }
.av-96 { width: 96px; height: 96px; font-size: 32px; }

/* ---------- Newsletter block ---------- */
.newsletter { background: var(--bg-2); border: 1px solid var(--border-1); border-radius: var(--r-2xl); padding: 40px; text-align: center; position: relative; overflow: hidden; }
.newsletter::before { content: ''; position: absolute; top: -100px; left: 50%; transform: translateX(-50%); width: 500px; height: 400px; background: radial-gradient(circle, rgba(0,229,199,0.1), transparent 55%); pointer-events: none; }
.newsletter h3 { font-size: 24px; font-weight: 700; letter-spacing: -0.02em; margin: 0 0 8px; position: relative; }
.newsletter h3 .acc { color: var(--teal); }
.newsletter p { font-size: 14px; color: var(--fg-3); margin: 0 0 20px; position: relative; }
.newsletter .form { display: flex; gap: 8px; justify-content: center; position: relative; }
.newsletter .input { background: var(--bg-4); border: 1px solid var(--border-2); border-radius: var(--r-lg); padding: 10px 16px; color: var(--fg-1); font-size: 14px; width: 280px; outline: none; }
.newsletter .input::placeholder { color: var(--fg-4); }
.newsletter .input:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(0,229,199,0.12); }
.newsletter .btn { background: var(--teal); color: #061210; font-weight: 700; font-size: 14px; padding: 10px 20px; border-radius: var(--r-lg); border: 0; cursor: pointer; white-space: nowrap; }
.newsletter .btn:hover { background: var(--teal-hover); }
.newsletter .note { font-family: var(--font-mono); font-size: 10px; color: var(--fg-4); margin-top: 10px; position: relative; }

/* ---------- Section heading ---------- */
.sec-title { font-size: 20px; font-weight: 600; letter-spacing: -0.015em; margin: 0 0 20px; }

/* ---------- Separator ---------- */
.sep { height: 4px; background: linear-gradient(90deg, transparent, var(--teal), transparent); opacity: 0.2; margin: 64px 0; border: 0; border-radius: 2px; }

/* ---------- Page hero (listing pages) ---------- */
.page-hero { padding: 56px 0 40px; position: relative; }
.page-hero::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(var(--grid-line) 1px, transparent 1px), linear-gradient(90deg, var(--grid-line) 1px, transparent 1px); background-size: 48px 48px; mask-image: radial-gradient(ellipse at 50% 60%, black 20%, transparent 65%); pointer-events: none; }
.page-hero-inner { position: relative; }
.page-hero h1 { font-size: clamp(36px, 5vw, 52px); font-weight: 700; letter-spacing: -0.035em; line-height: 1.04; margin: 0; }
.page-hero h1 .acc { color: var(--teal); }
.page-hero .lead { font-size: 16px; color: var(--fg-2); max-width: 540px; margin: 12px 0 0; line-height: 1.55; }
.eyebrow-mono { font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--teal); margin-bottom: 14px; }

/* ---------- Footer ---------- */
footer { padding: 32px 0; border-top: 1px solid var(--border-1); margin-top: 64px; }
.footer-inner { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 11px; color: var(--fg-4); letter-spacing: 0.04em; }
.footer-inner a { color: var(--fg-4); text-decoration: none; }
.footer-inner a:hover { color: var(--teal); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .posts { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .posts { grid-template-columns: 1fr; }
  .newsletter .form { flex-direction: column; align-items: stretch; }
  .newsletter .input { width: 100%; box-sizing: border-box; }
}

/* === startupbase.uno additions (LeadUp AI DS v3) === */

/* Text wordmark instead of the PNG nav logo (binary asset not copied) */
.nav-wordmark { display: inline-flex; align-items: center; font-size: 17px; font-weight: 600; letter-spacing: -0.02em; color: var(--fg-1); text-decoration: none; white-space: nowrap; }
.nav-wordmark:hover { color: var(--fg-1); }
.nav-wordmark .acc { color: var(--teal); }

/* Non-clickable "coming soon" post card: no hover lift, no border change */
.post--soon { cursor: default; }
.post--soon:hover { border-color: var(--border-1); transform: none; }

/* "скоро" mono chip */
.chip-soon { font-family: var(--font-mono); font-size: 10px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; padding: 3px 8px; border-radius: 9999px; border: 1px dashed var(--border-1); color: var(--fg-4); }

/* Reduced motion — mirror of the global rule in colors_and_type.css,
   scoped here so the blog keeps parity when only blog.css changes. */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ——— Логотип M4: знак + печать «startupbase.uno» + мигающий курсор ——— */
.lg { --lg-type: 1.6s; --lg-blink: 1.2s; }
.nav-wordmark.lg { display: inline-flex; align-items: center; gap: .52em; }
.lg__box { display: inline-flex; align-items: center; gap: .52em; white-space: nowrap; }
.lg__mark { width: 18px; height: 18px; flex: 0 0 auto; }
.lg__mark path { stroke-linecap: round; stroke-linejoin: round; }
.lg__mark .panel { fill: var(--bg-3); stroke: var(--border-2); }
.lg__mark .s { fill: none; stroke: var(--teal); }
.lg__mark .t { fill: var(--teal); }
.lg__mark .t.blink { animation: lg-blink var(--lg-blink) steps(1, end) infinite; }
.lg__type { position: relative; display: inline-block; white-space: nowrap; }
/* резерв полной ширины слова: навбар не прыгает ни на одном кадре */
.lg__ghost { visibility: hidden; }
.lg__clip {
  position: absolute; left: 0; top: 0; white-space: nowrap;
  clip-path: inset(0 100% 0 0);
  animation: lg-type var(--lg-type) steps(15, end) 0s both;
}
.lg__caret {
  position: absolute; top: auto; bottom: .02em; left: 0;
  width: .14em; height: .1em; border-radius: .02em; background: var(--teal);
  animation: lg-caret-move var(--lg-type) steps(15, end) 0s both,
             lg-blink var(--lg-blink) steps(1, end) var(--lg-type) infinite;
}
.lg .acc { color: var(--teal); }
.lg__word { white-space: nowrap; }
footer .lg__word { font-size: 17px; }

@keyframes lg-type { to { clip-path: inset(0 0 0 0); } }
@keyframes lg-caret-move { from { left: 0; } to { left: calc(100% - .14em); } }
@keyframes lg-blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }

/* статичный лок-ап: слово целиком, курсор видим, мигания нет */
.lg--static .lg__clip { clip-path: none; animation: none; }
.lg--static .lg__caret { left: calc(100% - .14em); animation: none; opacity: 1; }
.lg--static .lg__mark .t { animation: none; }
.lg--static .lg__mark { width: 24px; height: 24px; }

/* уменьшение движения: финальный кадр без анимации */
@media (prefers-reduced-motion: reduce) {
  .lg__clip { clip-path: none; animation: none; }
  .lg__caret { left: calc(100% - .14em); animation: none; opacity: 1; }
  /* .lg__mark .t.blink тоже выключаем: его базовая специфичность выше */
  .lg__mark .t, .lg__mark .t.blink { animation: none; opacity: 1; }
}

/* мобильный размер знака */
@media (max-width: 720px) {
  .lg__mark { width: 16px; height: 16px; }
}