:root {
  --indigo: #293481;
  --teal: #0e8286;
  --ink: #1b1b2f;
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --border: #e2e5ee;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Vazirmatn", "Tahoma", sans-serif;
  color: var(--ink);
  background: var(--bg);
  direction: rtl;
  line-height: 1.8;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--indigo);
  text-decoration: none;
}

.nav__logo img { height: 36px; width: 36px; }

.nav__links {
  display: flex;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__links a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
}

.nav__links a:hover { color: var(--teal); }

.hero {
  background: linear-gradient(135deg, var(--indigo), var(--teal));
  color: #fff;
  padding: 64px 0;
  text-align: center;
}

.hero h1 { font-size: 2.2rem; margin: 0 0 12px; }
.hero p { font-size: 1.1rem; opacity: 0.92; margin: 0 0 24px; }

.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  border: 2px solid transparent;
}

.btn-primary {
  background: #fff;
  color: var(--indigo);
}

.btn-primary:hover { opacity: 0.9; }

.section { padding: 56px 0; }
.section h2 { text-align: center; font-size: 1.6rem; margin-bottom: 32px; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  background: var(--bg-soft);
}

.card h3 { margin-top: 0; color: var(--indigo); }

.footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  text-align: center;
  color: #666;
  font-size: 0.9rem;
}

.form { max-width: 520px; margin: 0 auto; }

.form__field { margin-bottom: 18px; }

.form__field label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
}

.form__field input,
.form__field select,
.form__field textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 1rem;
}

.form__error {
  background: #fdecea;
  color: #a12622;
  border: 1px solid #f5c6c3;
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 20px;
}

.form__success {
  background: #e8f6f0;
  color: #0e6b4f;
  border: 1px solid #bfe6d8;
  border-radius: 8px;
  padding: 20px;
  text-align: center;
}

.field-error {
  color: #a12622;
  font-size: 0.85rem;
  margin-top: 4px;
}