:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --text: #1f2937;
  --muted: #6b7280;
  --bg: #f9fafb;
  --card: #ffffff;
  --border: #e5e7eb;
  --radius: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

.container { width: min(1100px, 92%); margin: 0 auto; }

/* Header */
.header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
}
.logo { font-size: 1.4rem; font-weight: 800; text-decoration: none; color: var(--text); }
.logo span { color: var(--primary); }
.nav { display: flex; gap: 22px; }
.nav a { text-decoration: none; color: var(--muted); font-weight: 500; }
.nav a:hover { color: var(--primary); }

/* Hero */
.hero {
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: #fff;
  text-align: center;
  padding: 80px 0;
}
.hero h1 { font-size: clamp(1.8rem, 5vw, 2.8rem); margin-bottom: 12px; }
.hero p { opacity: .9; margin-bottom: 24px; font-size: 1.1rem; }

/* Buttons */
.btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background .15s;
}
.btn:hover { background: var(--primary-dark); }
.btn:disabled { opacity: .6; cursor: not-allowed; }
.btn--light { background: #fff; color: var(--primary); }
.btn--light:hover { background: #eef2ff; }
.btn--ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn--ghost:hover { background: var(--bg); }

/* Sections */
.section { padding: 60px 0; }
.section--alt { background: #fff; }
.section h2 { font-size: 1.7rem; margin-bottom: 24px; }

/* Filters */
.filters {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr auto;
  gap: 10px;
  margin-bottom: 16px;
}
input, select, textarea {
  font: inherit;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  width: 100%;
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--primary);
  outline-offset: -1px;
}
.count { color: var(--muted); margin-bottom: 14px; font-size: .95rem; }

/* Jobs */
.jobs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 18px;
}
.job {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: box-shadow .15s, transform .15s;
}
.job:hover { box-shadow: 0 8px 20px rgba(0,0,0,.08); transform: translateY(-2px); }
.job__tag {
  align-self: flex-start;
  background: #eef2ff;
  color: var(--primary);
  font-size: .8rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 999px;
}
.job h3 { font-size: 1.15rem; }
.job__company { color: var(--muted); font-size: .95rem; }
.job__meta { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: .9rem; color: var(--muted); }
.job__desc { font-size: .95rem; flex: 1; }
.job__salary { font-weight: 700; }
.job .btn { margin-top: 6px; text-align: center; }
.empty { text-align: center; color: var(--muted); padding: 40px 0; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.step { text-align: center; padding: 10px; }
.step__num {
  display: inline-flex;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
  margin-bottom: 10px;
}
.step h3 { margin-bottom: 6px; }
.step p { color: var(--muted); }

/* Footer */
.footer { background: #111827; color: #d1d5db; padding: 36px 0; }
.footer__inner { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; }
.footer strong { color: #fff; }
.footer p { font-size: .9rem; margin-top: 4px; }

/* Modal */
.modal {
  border: none;
  border-radius: var(--radius);
  padding: 0;
  width: min(520px, 94%);
  margin: auto;
}
.modal::backdrop { background: rgba(0,0,0,.5); }
.form { padding: 28px; display: flex; flex-direction: column; gap: 14px; position: relative; }
.form h3 { font-size: 1.3rem; }
.form__job { color: var(--primary); font-weight: 600; margin-top: -8px; }
.form label { display: flex; flex-direction: column; gap: 4px; font-size: .9rem; font-weight: 600; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.modal__close {
  position: absolute; top: 10px; right: 14px;
  background: none; border: none;
  font-size: 1.8rem; cursor: pointer; color: var(--muted);
}
.form__msg { min-height: 1.4em; font-size: .95rem; }
.form__msg.ok { color: #15803d; }
.form__msg.err { color: #b91c1c; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

/* Mobile */
@media (max-width: 720px) {
  .filters { grid-template-columns: 1fr; }
  .row { grid-template-columns: 1fr; }
  .nav { gap: 14px; font-size: .9rem; }
  .hero { padding: 56px 0; }
}