/* ============================================================
   Ino Anti — дизайн-система сайту
   Палітра "Ink" повторює тему клієнта (src/renderer/src/styles.css)
   ============================================================ */

:root {
  --bg: #0a0c11;
  --bg-soft: #0d1017;
  --panel: #12151d;
  --panel-2: #171b25;
  --panel-3: #1f2531;
  --border: #262c39;
  --border-soft: #1b202b;
  --text: #e9ecf3;
  --muted: #97a0b4;
  --faint: #888d9d;
  --accent: #5b8cff;
  --accent-2: #7fa5ff;
  --accent-3: #a072ff;
  --ok: #3ecf8e;
  --warn: #f0b24a;
  --err: #ff6470;

  --radius: 12px;
  --radius-lg: 18px;
  --maxw: 1160px;
  --font: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Consolas, monospace;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);
  --shadow: 0 12px 36px rgba(0, 0, 0, .45);
  --shadow-lg: 0 28px 80px rgba(0, 0, 0, .6);
  --glow: 0 8px 32px rgba(91, 140, 255, .35);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background:
    radial-gradient(900px 420px at 8% -12%, #131d33 0%, transparent 60%),
    radial-gradient(700px 380px at 100% -6%, #1b1630 0%, transparent 55%),
    var(--bg);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--accent-2); text-decoration: none; transition: color .18s; }
a:hover { color: #fff; }

h1, h2, h3, h4 { line-height: 1.15; letter-spacing: -.02em; margin: 0 0 .5em; font-weight: 650; }
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1rem; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.header {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(10, 12, 17, .72);
  border-bottom: 1px solid var(--border-soft);
}
.header-inner {
  display: flex; align-items: center; gap: 28px;
  height: 72px;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.05rem; color: var(--text); letter-spacing: -.02em; }
.logo-mark {
  width: 30px; height: 30px; border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  display: grid; place-items: center; flex: none;
  box-shadow: 0 4px 16px rgba(91,140,255,.4);
}
.logo-mark svg { width: 17px; height: 17px; }
.nav { display: flex; gap: 26px; margin-left: 12px; }
.nav a { color: var(--muted); font-size: .93rem; font-weight: 500; }
.nav a:hover, .nav a.active { color: var(--text); }
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 22px; border-radius: 9px; border: 1px solid transparent;
  font: inherit; font-weight: 600; font-size: .94rem; cursor: pointer;
  transition: transform .18s, box-shadow .18s, background .18s, border-color .18s;
  white-space: nowrap;
}
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #080a10; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--glow); color: #080a10; }
.btn-secondary { background: transparent; border-color: var(--border); color: var(--text); }
.btn-secondary:hover { background: var(--panel-2); border-color: var(--accent); color: var(--text); }
.btn-ghost { background: transparent; color: var(--muted); padding: 8px 12px; }
.btn-ghost:hover { color: var(--text); background: var(--panel-2); }
.btn-lg { padding: 15px 34px; font-size: 1rem; }
.btn-sm { padding: 8px 16px; font-size: .87rem; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .5; pointer-events: none; }
.btn-danger { background: transparent; border-color: rgba(255,100,112,.4); color: var(--err); }
.btn-danger:hover { background: rgba(255,100,112,.12); color: var(--err); }

/* ---------- Sections ---------- */
.section { padding: 88px 0; }
.section-tight { padding: 56px 0; }
.section-head { max-width: 680px; margin: 0 auto 48px; text-align: center; }
.section-head p { color: var(--muted); font-size: 1.06rem; margin: 0; }
.eyebrow {
  display: inline-block; font-size: .78rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent-2); margin-bottom: 14px;
}

/* ---------- Cards ---------- */
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 28px; transition: transform .22s, box-shadow .22s, border-color .22s;
}
.card-hover:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--border); }

/* ---------- Badges ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .8rem; font-weight: 600; padding: 6px 14px; border-radius: 100px;
  background: rgba(91,140,255,.1); border: 1px solid rgba(91,140,255,.28); color: var(--accent-2);
}
.badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 0 rgba(62,207,142,.6); animation: pulse 2.4s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 7px rgba(62,207,142,0); } 100% { box-shadow: 0 0 0 0 rgba(62,207,142,0); } }

.gradient-text {
  background: linear-gradient(120deg, var(--accent) 10%, var(--accent-3) 90%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border-soft); background: var(--bg-soft); padding: 56px 0 28px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 40px; margin-bottom: 40px; }
.footer-col h4 { font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: var(--faint); margin-bottom: 16px; }
.footer-col a { display: block; color: var(--muted); font-size: .92rem; margin-bottom: 10px; }
.footer-col a:hover { color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding-top: 24px; border-top: 1px solid var(--border-soft); font-size: .86rem; color: var(--faint); flex-wrap: wrap; }
.footer-about { color: var(--muted); font-size: .92rem; margin: 14px 0 0; max-width: 320px; }

/* ---------- Forms ---------- */
.field { margin-bottom: 18px; }
.field label { display: block; font-size: .88rem; font-weight: 600; color: var(--muted); margin-bottom: 8px; }
.input, .select {
  width: 100%; padding: 12px 14px; border-radius: 9px;
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  font: inherit; font-size: .95rem; transition: border-color .18s, box-shadow .18s;
}
.input:focus, .select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(91,140,255,.16); }
.input::placeholder { color: var(--faint); }
.hint { font-size: .82rem; color: var(--faint); margin-top: 6px; }
.error-text { color: var(--err); font-size: .86rem; margin-top: 8px; }
.ok-text { color: var(--ok); font-size: .86rem; margin-top: 8px; }

/* ---------- Utilities ---------- */
.muted { color: var(--muted); }
.faint { color: var(--faint); }
.center { text-align: center; }
.mono { font-family: var(--mono); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; } .mt-4 { margin-top: 32px; }
.mb-0 { margin-bottom: 0; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }

@media (max-width: 900px) {
  .nav { display: none; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 60px 0; }
}
@media (max-width: 620px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .header-actions .btn-secondary { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* ---------- CTA band (спільний для всіх сторінок) ---------- */
.cta-band {
  position: relative; overflow: hidden;
  border-radius: 20px; padding: 44px 44px;
  background:
    radial-gradient(600px 200px at 12% 0%, rgba(91,140,255,.16), transparent 70%),
    var(--panel);
  border: 1px solid rgba(91,140,255,.22);
}
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta-inner h2 { margin-bottom: 8px; font-size: 1.6rem; }
.cta-inner p { margin: 0; color: var(--muted); max-width: 440px; font-size: .95rem; }

/* центрований варіант для сторінок без .cta-inner */
.cta-band:not(:has(.cta-inner)) { text-align: center; }
.cta-band:not(:has(.cta-inner)) h2 { margin-bottom: 12px; }
.cta-band:not(:has(.cta-inner)) p { margin: 0 auto 28px; max-width: 500px; }
.cta-note { font-size: .84rem; color: var(--faint); margin-top: 22px; display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }

/* ---------- Мобільна навігація (≤900px) ----------
   .nav ховається на вузьких екранах; без цього блоку на телефоні не було
   жодного переходу між сторінками. Кнопку й панель створює site.js. */
.menu-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 4px;
  width: 40px; height: 40px; padding: 0 9px; border-radius: 10px;
  background: var(--panel); border: 1px solid var(--border); cursor: pointer;
}
.menu-toggle span { display: block; height: 2px; width: 100%; background: var(--text); border-radius: 2px; transition: transform .18s, opacity .18s; }
.header-inner.menu-open .menu-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.header-inner.menu-open .menu-toggle span:nth-child(2) { opacity: 0; }
.header-inner.menu-open .menu-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.mobile-nav { display: none; position: absolute; left: 0; right: 0; top: 100%; z-index: 40;
  background: var(--panel); border-bottom: 1px solid var(--border); box-shadow: var(--shadow);
  padding: 10px 20px 16px; flex-direction: column; gap: 2px; }
.mobile-nav a { display: block; padding: 12px 4px; color: var(--text); font-weight: 600; border-bottom: 1px solid var(--border-soft); }
.mobile-nav a:last-child { border-bottom: none; }
.header-inner.menu-open .mobile-nav { display: flex; }
@media (max-width: 900px) {
  .menu-toggle { display: flex; }
  .header-inner { position: relative; }
}