body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background: #0d1117;
    color: #f0f6fc;
}
.container {
    text-align: center;
    padding: 5rem 2rem;
}
.hero {
    background: linear-gradient(135deg, #1f2937, #111827);
}
h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}
h2 {
    font-size: 2rem;
    text-align: center;
    margin-top: 3rem;
}
.btn {
    display: inline-block;
    margin-top: 1rem;
    padding: 1rem 2rem;
    background: #2563eb;
    color: white;
    text-decoration: none;
    border-radius: 8px;
}
.cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}
.card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1.5rem;
    width: 280px;
    backdrop-filter: blur(10px);
}
form {
    max-width: 500px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 2rem;
}
input, textarea {
    padding: 1rem;
    border: none;
    border-radius: 8px;
}
button {
    padding: 1rem;
    background: #10b981;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}
@media (max-width: 768px) {
    .container {
        padding: 2rem 1rem;
    }
    h1 {
        font-size: 2rem;
    }
    h2 {
        font-size: 1.3rem;
        margin-top: 2rem;
    }
    .cards, .steps-cards, .testimonial-cards {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }
    .card, .step-card, .testimonial-card, .highlight {
        width: 100%;
        max-width: 380px;
        min-width: 0;
        margin-left: auto;
        margin-right: auto;
        box-sizing: border-box;
    }
    .features,
    .problems,
    .about,
    .steps,
    .tools,
    .faq,
    .footer,
    .contact,
    .cases {
        padding: 2rem 1rem;
    }
    .cta {
        padding: 2rem 1rem;
        margin: 2rem 0;
        max-width: 100%;
    }
    form {
        padding: 1rem;
    }
    input, textarea {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem 0.5rem;
    }
    h1 {
        font-size: 1.3rem;
    }
    h2 {
        font-size: 1.1rem;
    }
    .btn, .btn-primary, .btn-secondary {
        padding: 0.8rem 1.2rem;
        font-size: 1rem;
    }
    .card, .step-card, .testimonial-card, .highlight {
        max-width: 95vw;
        margin-left: auto;
        margin-right: auto;
    }
    .cta {
        font-size: 1rem;
        padding: 1rem 0.5rem;
    }
    form {
        padding: 0.5rem;
    }
}

.about, .steps, .tools, .faq, .footer {
    text-align: center;
    padding: 4rem 2rem;
}
.footer {
    background: #0a0a0a;
    color: #999;
}
.faq .card strong {
    display: block;
    margin-bottom: 0.5rem;
    color: #fff;
}

.bg-dark {
    background: #0d1117;
    padding: 4rem 2rem;
}

.bg-light {
    background: #1f2937;
    padding: 4rem 2rem;
}

/* Новые кнопки */
.btn-primary {
    background: #2563eb;
    color: white;
    border: none;
}

.btn-primary:hover {
    background: #1d4ed8;
}

.btn-secondary {
    background: transparent;
    border: 2px solid #2563eb;
    color: #2563eb;
}

.btn-secondary:hover {
    background: #2563eb;
    color: white;
}

/* Кейсы */
.cases .card {
    background: rgba(37, 99, 235, 0.05);
    border: 1px solid rgba(37, 99, 235, 0.2);
}

/* Выравнивание заголовков */
.cases h3 {
    margin-top: 0;
    margin-bottom: 0.5rem;
}

.contact {
    text-align: center;
    padding: 4rem 2rem;
}

.contact p {
    max-width: 600px;
    margin: 0 auto 2rem auto;
    font-size: 1.1rem;
    line-height: 1.5;
}

.features,
.problems {
    text-align: center;
    padding-bottom: 2rem;
}

.features .btn,
.problems .btn {
    margin-top: 2rem;
    display: inline-block;
}

.cases {
    padding: 3rem 2rem;
    background: #161b22; /* немного светлее фона */
    text-align: center;
}

.cases .cards {
    justify-content: center; /* выравнивание карточек по центру */
    margin-bottom: 2rem; /* отступ под карточками */
    gap: 1.5rem;
    flex-wrap: wrap;
}

.cases .card {
    max-width: 320px;
    flex: 1 1 280px;
}

.cases a.btn {
    display: inline-block;
    margin: 0 auto;
    padding: 1rem 2.5rem;
    background: #3b82f6; /* яркий синий */
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.cases a.btn:hover {
    background: #2563eb;
}

html {
  scroll-behavior: smooth;
}

.results .highlight {
  background: linear-gradient(135deg, #2563eb, #4f46e5);
  color: white;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.5);
  font-weight: 700;
}

.steps-cards, .testimonial-cards {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.step-card, .testimonial-card {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  padding: 2rem;
  width: 260px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.step-card img {
  width: 60px;
  margin-bottom: 1rem;
}

.testimonial-card img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin-bottom: 1rem;
}

.btn-primary {
  background: #2563eb;
  transition: background-color 0.3s ease, transform 0.2s ease;
}
.btn-primary:hover {
  background: #4f46e5;
  transform: scale(1.05);
}

.cta {
    color: #e0e6f0;
    background: rgba(37, 99, 235, 0.15); /* мягкий синий фон */
    border-radius: 12px;
    margin: 3rem auto;
    max-width: 700px;
    box-shadow: 0 8px 24px rgb(37 99 235 / 0.3);
}