/* CoolTextCopy: современная тема. Слой поверх shared/engine/style.css */
@font-face {
  font-family: "Inter";
  src: url("/assets/inter-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
:root {
  --bg: #fbfbfd;
  --fg: #0b0b12;
  --muted: #5b5f72;
  --card: #ffffff;
  --line: #e8e9f0;
  --fill: #f2f3f8;
  --accent: #6d28d9;
  --accent2: #db2777;
  --accent-soft: #f5f0ff;
  --accent-fg: #ffffff;
  --shadow: 0 1px 2px rgba(16, 18, 40, 0.04), 0 8px 24px rgba(16, 18, 40, 0.06);
  --glow: radial-gradient(60% 60% at 50% 0%, rgba(139, 92, 246, 0.14), rgba(139, 92, 246, 0) 70%);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #09090f;
    --fg: #f4f4fa;
    --muted: #a0a3b8;
    --card: #11121b;
    --line: #23253a;
    --fill: #171826;
    --accent: #c4b5fd;
    --accent2: #f9a8d4;
    --accent-soft: #1b1533;
    --accent-fg: #0b0b12;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 8px 28px rgba(0, 0, 0, 0.35);
    --glow: radial-gradient(60% 60% at 50% 0%, rgba(167, 139, 250, 0.2), rgba(167, 139, 250, 0) 70%);
  }
}
html { scroll-behavior: smooth; }
body {
  font-family: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-feature-settings: "cv11", "ss01", "tnum" 0;
  font-size: 16px; line-height: 1.65; letter-spacing: -0.006em;
  background: var(--bg) var(--glow) no-repeat top center / 100% 520px;
}
.wrap { max-width: 920px; }

/* шапка: липкая, полупрозрачная, навигация таблетками */
header.site {
  position: sticky; top: 0; z-index: 20; padding: 12px 0;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: saturate(180%) blur(14px); -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
header.site > .wrap > a:first-child { font-size: 1.15rem; font-weight: 760; letter-spacing: -0.035em; gap: 9px; }
header.site > .wrap > a:first-child::before {
  content: ""; width: 28px; height: 28px; border-radius: 8px; box-shadow: none;
  background: url("/assets/icon.svg") center / contain no-repeat;
}
header.site nav { display: flex; gap: 4px; flex-wrap: wrap; }
header.site nav a {
  display: inline-block; padding: 7px 13px; border-radius: 999px;
  color: var(--muted); font-size: 0.88rem; font-weight: 550; text-decoration: none;
  transition: background 0.15s, color 0.15s;
}
header.site nav a::before { content: none; }
header.site nav a:hover { background: var(--fill); color: var(--fg); }

h1 { font-size: clamp(2.1rem, 4.6vw, 3rem); line-height: 1.08; font-weight: 780; letter-spacing: -0.045em; margin: 56px 0 14px; }
.lead { font-size: 1.15rem; line-height: 1.6; color: var(--muted); max-width: 56ch; margin-bottom: 36px; }
h2 { font-size: 1.35rem; font-weight: 700; letter-spacing: -0.03em; text-transform: none; color: var(--fg); margin: 56px 0 16px; }

/* карточки */
.card { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 26px; box-shadow: var(--shadow); }
.calc { gap: 20px; }
@media (min-width: 800px) { .calc { grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); } }
label { font-size: 0.84rem; font-weight: 600; color: var(--muted); letter-spacing: 0; }
.row { gap: 8px; margin-bottom: 18px; }
input, select {
  min-height: 50px; border-radius: 12px; padding: 12px 14px; font-size: 1rem; font-weight: 500;
  background: var(--fill); border: 1px solid transparent; color: var(--fg);
}
input:hover, select:hover { border-color: var(--line); }
input:focus-visible, select:focus-visible {
  outline: none; background: var(--card); border-color: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent);
}

/* результат: главный экран */
#calc-result {
  background: linear-gradient(160deg, var(--accent-soft), var(--card) 75%);
  border-color: color-mix(in srgb, var(--accent) 22%, var(--line));
}
#calc-result p { padding: 12px 0; border-bottom: 1px dashed var(--line); }
#calc-result p:first-child { display: block; padding: 0 0 18px; border-bottom: 1px solid var(--line); }
#calc-result p:first-child .out-name { display: block; font-size: 0.84rem; font-weight: 600; margin-bottom: 4px; }
#calc-result p:first-child strong {
  display: block; text-align: left; white-space: normal; overflow-wrap: anywhere; font-size: clamp(1.7rem, 3.6vw, 2.4rem); line-height: 1.15; font-weight: 780; letter-spacing: -0.04em;
  background: linear-gradient(120deg, var(--accent), var(--accent2)); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
#calc-result strong { color: var(--fg); font-weight: 650; font-size: 1.08rem; }
.out-name { font-size: 0.92rem; }

.formula {
  background: var(--fill); border: 0; border-radius: 14px; padding: 16px 18px; font-size: 0.9rem; line-height: 1.6;
}

details { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 0 20px; margin: 0 0 10px; transition: border-color 0.15s, box-shadow 0.15s; }
details:first-of-type { border-top: 1px solid var(--line); }
details[open] { box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--accent) 28%, var(--line)); }
summary { padding: 17px 0; font-weight: 600; letter-spacing: -0.015em; }
summary::after {
  content: "+"; flex: none; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center;
  background: var(--fill); color: var(--fg); font-size: 1.1rem; font-weight: 500; line-height: 1;
}
details[open] summary::after { content: "−"; background: var(--accent); color: var(--accent-fg); }
details p { line-height: 1.7; }

/* карточки инструментов: главная и «связанные» */
ul.tools { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; border: 0; }
ul.tools li { border: 0; }
ul.tools a {
  display: flex; flex-direction: column; gap: 6px; height: 100%; position: relative;
  padding: 18px 20px 20px; background: var(--card); border: 1px solid var(--line); border-radius: 18px;
  color: var(--fg); transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
}
ul.tools a strong { font-size: 1.02rem; font-weight: 650; letter-spacing: -0.02em; padding-right: 26px; }
ul.tools a span {
  color: var(--muted); font-size: 0.9rem; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
ul.tools a::after {
  content: "↗"; position: absolute; top: 16px; right: 18px; color: var(--muted); font-size: 1rem; transform: none;
  transition: color 0.18s, transform 0.18s;
}
ul.tools a:hover, ul.tools a:focus-visible {
  transform: translateY(-3px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); color: var(--fg);
}
ul.tools a:hover::after, ul.tools a:focus-visible::after { color: var(--accent); transform: translate(2px, -2px); }
ul.tools a:only-child { padding: 14px 18px; }
main > h2 + ul.tools, #work, #dates, #everyday { scroll-margin-top: 80px; }

.note { font-size: 0.82rem; }
footer.site { border-top: 1px solid var(--line); margin-top: 88px; }

@media (max-width: 560px) {
  h1 { margin-top: 36px; }
  .card { padding: 20px; border-radius: 18px; }
  header.site nav a { padding: 6px 10px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* карточки v2: короткая подпись в одну строку без обрезки */
ul.tools a { gap: 3px; padding: 16px 18px; }
ul.tools a strong { font-size: 0.94rem; padding-right: 0; }
ul.tools a span { display: block; -webkit-line-clamp: unset; overflow: visible; font-size: 0.88rem; line-height: 1.4; }
ul.tools a::after { top: 15px; right: 16px; }

@media (max-width: 799px) {
  header.site { position: static; }
  header.site nav { gap: 2px; margin-left: -10px; }
  header.site nav a { padding: 11px 12px; font-size: 0.92rem; }
  h1 { margin-top: 28px; }
  h2 { margin-top: 40px; }
  ul.tools { grid-template-columns: 1fr; gap: 8px; }
  ul.tools a { padding: 13px 16px; border-radius: 14px; }
  ul.tools a strong { padding-right: 24px; }
  .card { padding: 18px; }
}

/* калькулятор: одна панель, слева ввод, справа результат */
.calc {
  gap: 0; align-items: stretch; background: var(--card); border: 1px solid var(--line);
  border-radius: 24px; box-shadow: var(--shadow); overflow: hidden;
}
.calc > .card { border: 0; border-radius: 0; box-shadow: none; background: transparent; padding: 28px; }
.calc #calc-result {
  position: static; min-height: 0;
  background: linear-gradient(160deg, var(--accent-soft), color-mix(in srgb, var(--accent-soft) 40%, var(--card)));
}
@media (min-width: 800px) {
  .calc { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); }
  .calc #calc-result { border-left: 1px solid var(--line); }
}
@media (max-width: 799px) {
  .calc > .card { padding: 20px; }
  .calc #calc-result:not(.long) { border-bottom: 1px solid var(--line); }
  .calc #calc-result.long { border-top: 1px solid var(--line); }
}
label { font-size: 0.9rem; font-weight: 600; color: var(--fg); letter-spacing: -0.005em; }
.row { gap: 7px; margin-bottom: 20px; }
input, select {
  min-height: 54px; background: var(--card); border: 1.5px solid color-mix(in srgb, var(--fg) 16%, var(--line));
  border-radius: 14px; padding: 12px 16px; font-size: 1.08rem; font-weight: 550; font-variant-numeric: tabular-nums;
}
input:hover, select:hover { border-color: color-mix(in srgb, var(--fg) 34%, var(--line)); }
input:focus-visible, select:focus-visible { background: var(--card); border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 20%, transparent); }
.field .unit { right: 16px; font-size: 0.86rem; font-weight: 600; letter-spacing: 0.01em; }
.field input { padding-right: calc(var(--u, 0ch) + 34px); }

/* разделение секций: линия с акцентной отметкой над каждым заголовком, акцент у формулы, пунктир перед примечанием */
main > h2 {
  position: relative; margin: 72px 0 20px; padding-top: 28px;
  border-top: 1px solid var(--line);
}
main > h2::before {
  content: ""; position: absolute; top: -2px; left: 0; width: 44px; height: 3px; border-radius: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
}
.formula { box-shadow: inset 3px 0 0 var(--accent); }
.note { margin-top: 56px; padding-top: 18px; border-top: 1px dashed var(--line); }
@media (max-width: 799px) {
  main > h2 { margin-top: 52px; padding-top: 22px; }
  .note { margin-top: 40px; }
}