/* ============================================================
   ClonX — base.css
   Дизайн-токени, скидання, типографіка, утиліти
   ============================================================ */

:root {
  /* Palette — чистий чорно-білий преміум */
  --c-bg:            #000000;
  --c-bg-soft:       #050505;
  --c-surface:       #0a0a0a;
  --c-surface-2:     #141414;
  --c-border:        rgba(255, 255, 255, 0.08);
  --c-border-strong: rgba(255, 255, 255, 0.18);

  --c-text:          #ffffff;
  --c-text-dim:      #a3a3a3;
  --c-text-faint:    #5c5c5c;

  --c-accent:        #ffffff;
  --c-accent-2:      #c9d1cd;
  --c-accent-soft:   rgba(255, 255, 255, 0.08);

  /* Typography */
  --f-display: "Unbounded", sans-serif;
  --f-body:    "Manrope", sans-serif;
  --f-mono:    "JetBrains Mono", monospace;

  /* Layout */
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --nav-height: 72px;

  /* Motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--f-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.is-loading { overflow: hidden; }

h1, h2, h3, h4, .navbar-brand {
  font-family: var(--f-display);
  font-weight: 600;
  letter-spacing: -0.02em;
}

a { color: var(--c-accent); text-decoration: none; transition: color 0.25s; }
a:hover { color: var(--c-accent-2); }

.mono { font-family: var(--f-mono); }

::selection { background: var(--c-accent); color: #06130c; }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--c-bg); }
::-webkit-scrollbar-thumb {
  background: var(--c-surface-2);
  border-radius: 8px;
  border: 2px solid var(--c-bg);
}
::-webkit-scrollbar-thumb:hover { background: #2a3530; }

/* Layout helpers */
.container-narrow { max-width: 820px; }
.container-flush { max-width: 1440px; margin-inline: auto; padding-inline: 16px; }

/* Text gradient — сріблястий відблиск на білому */
.text-gradient {
  background: linear-gradient(100deg, #ffffff 20%, #8f9693 50%, #ffffff 80%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: shimmer 7s linear infinite;
}

@keyframes shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

/* Section scaffolding */
.section { padding: clamp(80px, 10vw, 140px) 0; position: relative; }

.section-head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-eyebrow {
  display: inline-block;
  color: var(--c-accent);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(1.6rem, 3.4vw, 2.5rem);
  font-weight: 600;
  line-height: 1.18;
  margin: 0 0 16px;
}

.section-sub {
  color: var(--c-text-dim);
  font-size: 1.05rem;
  margin: 0;
}