/* ============================================================
   Zahalski.dev — promo landing for Hermes AI-employee service
   Все настройки темы — в CSS-переменных ниже: меняя их,
   получаем новую цветовую схему/шрифты без правки разметки.
   ============================================================ */
:root {
  /* Brand */
  --z-accent: #fff000;              /* фирменный «жёлтый» {A}Z при наведении */
  --z-accent-contrast: #212832;

  /* Surfaces */
  --z-dark: #212832;                /* цвет шапки/подвала zahalski.dev */
  --z-dark-deep: #151a21;           /* затемнение для градиентов */
  --z-primary: #0d6efd;             /* основной цвет сайта */
  --z-primary-dark: #0a58ca;
  --z-bg: #ffffff;
  --z-bg-soft: #f6f8fb;
  --z-text: #212832;
  --z-muted: #6c757d;
  --z-border: #e4e8ee;

  /* Type */
  --z-font-logo: "Bebas Neue", "Oswald", sans-serif;   /* только латиница ({A}Z) */
  --z-font-head: "Oswald", "Open Sans", sans-serif;    /* дисплейный, есть кириллица */
  --z-font-body: "Open Sans", system-ui, -apple-system, sans-serif;
  --z-hero-size: clamp(2.8rem, 7vw, 5.2rem);
  --z-section-size: clamp(1.7rem, 3vw, 2.4rem);
  --z-tracking-head: 0.04em;

  /* Shape & space */
  --z-radius: 14px;
  --z-radius-sm: 10px;
  --z-shadow: 0 10px 30px rgba(21, 26, 33, 0.10);
  --z-shadow-lg: 0 18px 50px rgba(21, 26, 33, 0.18);

  /* Motion */
  --z-anim-fast: 160ms ease;
  --z-anim: 280ms ease;
}

/* Bootstrap rebrand через переменные */
:root {
  --bs-primary: var(--z-primary);
  --bs-primary-rgb: 13, 110, 253;
  --bs-dark: var(--z-dark);
  --bs-dark-rgb: 33, 40, 50;
  --bs-body-color: var(--z-text);
  --bs-body-bg: var(--z-bg);
  --bs-border-color: var(--z-border);
  --bs-body-font-family: var(--z-font-body);
  --bs-link-color: var(--z-primary);
  --bs-link-hover-color: var(--z-primary-dark);
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--z-font-body);
  color: var(--z-text);
  background: var(--z-bg);
  overflow-x: hidden;
}
h1, h2, .section-title { font-family: var(--z-font-body); }

section { scroll-margin-top: 84px; }

/* ---------- Navbar ---------- */
.navbar.awz-bg-dark { background: var(--z-dark); transition: box-shadow var(--z-anim), padding var(--z-anim); padding-block: .6rem; }
.navbar.scrolled { box-shadow: var(--z-shadow); }
.navbar .nav-link { color: rgba(255,255,255,.75); font-weight: 600; }
.navbar .nav-link:hover, .navbar .nav-link.active { color: var(--z-accent); }

/* ---------- {A}Z logo ---------- */
.logo { text-decoration: none; color: #fff; display: inline-flex; align-items: baseline; line-height: 1; font-family: var(--z-font-logo); letter-spacing: .02em; }
.logo .brace { font-size: 1.35rem; opacity: .9; }
.logo .letter { font-size: 1.6rem; font-weight: 700; }
.logo:hover { color: var(--z-accent); }
.footer-logo:hover { color: var(--z-accent); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  color: #fff;
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(var(--bs-primary-rgb), .55), transparent 60%),
    radial-gradient(900px 420px at 10% 110%, rgba(var(--bs-primary-rgb), .28), transparent 55%),
    linear-gradient(135deg, var(--z-dark-deep) 0%, var(--z-dark) 55%, #2b3a52 100%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(45deg, rgba(255,255,255,.03) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.03) 50%, rgba(255,255,255,.03) 75%, transparent 75%, transparent);
  background-size: 1.25rem 1.25rem;
}
.hero > .container { position: relative; z-index: 1; }
.hero-kicker { text-transform: uppercase; letter-spacing: var(--z-tracking-head); font-size: .78rem; color: rgba(255,255,255,.82); font-weight: 600; }
.hero-title {
  font-family: var(--z-font-head);
  font-size: var(--z-hero-size);
  letter-spacing: .03em;
  line-height: 1.04;
  text-transform: uppercase;
  margin: 0;
}
.hero-title .accent { color: var(--z-accent); }
.hero-sub { color: rgba(255,255,255,.85); max-width: 46rem; margin-inline: auto; font-size: clamp(1.02rem, 1.6vw, 1.22rem); }
.hero-badges .badge {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.18);
  color: #fff; font-weight: 600; font-size: .8rem; padding: .55em 1em; margin: .2rem;
  backdrop-filter: blur(4px);
}

/* ---------- Buttons ---------- */
.btn-accent { background: var(--z-accent); border-color: var(--z-accent); color: var(--z-accent-contrast); font-weight: 700; }
.btn-accent:hover, .btn-accent:focus { background: #e6d900; border-color: #e6d900; color: var(--z-accent-contrast); }
.btn-primary { --bs-btn-bg: var(--z-primary); --bs-btn-border-color: var(--z-primary); --bs-btn-hover-bg: var(--z-primary-dark); --bs-btn-hover-border-color: var(--z-primary-dark); }

/* ---------- Sections ---------- */
.section-title { font-size: var(--z-section-size); font-weight: 700; letter-spacing: -.01em; }
.section-title::after { content: ""; display: block; width: 64px; height: 4px; border-radius: 4px; background: var(--z-primary); margin: .8rem auto 0; }
#rate .section-title::after { margin-left: 0; }

/* ---------- Feature / case cards ---------- */
.feature-card, .case-card { border: 1px solid var(--z-border); border-radius: var(--z-radius); box-shadow: none; transition: transform var(--z-anim), box-shadow var(--z-anim); }
.feature-card:hover, .case-card:hover { transform: translateY(-6px); box-shadow: var(--z-shadow-lg); }
.feature-icon {
  width: 58px; height: 58px; border-radius: var(--z-radius-sm);
  display: grid; place-items: center; font-size: 1.6rem; margin-bottom: 1.1rem;
  color: var(--z-primary); background: rgba(var(--bs-primary-rgb), .1);
}
.case-metric {
  font-family: var(--z-font-head); letter-spacing: .04em; font-size: 1.5rem;
  color: var(--z-primary); text-transform: uppercase; line-height: 1.1;
}
.case-card .card-text { color: var(--z-muted); }
.case-link { margin-top: 1rem; font-weight: 600; text-decoration: none; color: var(--z-primary); }
.case-link:hover { color: var(--z-primary-dark); text-decoration: underline; }

/* ---------- Rate ---------- */
.rate-points li { padding: .55rem 0 .55rem 2rem; position: relative; font-weight: 600; }
.rate-points i { position: absolute; left: 0; top: .65rem; color: var(--z-primary); }
.rate-card {
  border: none; border-radius: var(--z-radius); color: #fff; box-shadow: var(--z-shadow-lg);
  background: linear-gradient(135deg, var(--z-dark-deep), var(--z-dark) 60%, #33415c);
}
.rate-main { font-family: var(--z-font-head); font-size: clamp(2.6rem, 5vw, 3.6rem); letter-spacing: .04em; text-transform: uppercase; line-height: 1; }
.rate-sep { color: var(--z-accent); }
.rate-alt { font-size: 1.05rem; color: rgba(255,255,255,.75); margin-top: .4rem; }

/* ---------- Steps ---------- */
.step-box { background: #fff; border: 1px solid var(--z-border); border-radius: var(--z-radius); padding: 1.6rem; height: 100%; }
.step-num { font-family: var(--z-font-head); font-size: 2.2rem; color: rgba(var(--bs-primary-rgb), .35); display: block; line-height: 1; margin-bottom: .5rem; letter-spacing: .05em; }

/* ---------- Contact ---------- */
.contact-block {
  background:
    radial-gradient(900px 400px at 50% 120%, rgba(var(--bs-primary-rgb), .5), transparent 60%),
    linear-gradient(135deg, var(--z-dark-deep), var(--z-dark));
}
.contact-block .section-title::after { display: none; }

/* ---------- Footer ---------- */
.footer-dark { background: var(--z-dark-deep); color: rgba(255,255,255,.6); }

/* ---------- Reveal-on-scroll (jQuery) ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 600ms ease, transform 600ms ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}