/* --- static/css/style.css --- */

/* --- Подключение шрифта --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* --- ОСНОВА: Цвета и Типографика --- */
:root {
    --primary-color: #2563EB;      /* Уверенный синий */
    --primary-hover-color: #1D4ED8; /* Темный синий для наведения */
    --dark-color: #0F172A;         /* Очень темный для заголовков */
    --text-color: #334155;         /* Мягкий серый для текста */
    --light-gray-bg: #F8FAFC;      /* Очень светлый фон для секций */
    --border-color: #E2E8F0;       /* Тонкий цвет для рамок */
    --white-color: #FFFFFF;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white-color);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 96px 0;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--dark-color);
    line-height: 1.2;
    margin-bottom: 1rem;
    font-weight: 700;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; text-align: center; }
h3 { font-size: 1.25rem; font-weight: 600; }
p { margin-bottom: 1.5rem; color: var(--text-color); }

/* --- ЭЛЕМЕНТЫ: Кнопки, Карточки, Шапка --- */

.btn {
    display: inline-block;
    padding: 14px 28px;
    background: var(--primary-color);
    color: var(--white-color);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.2s ease-in-out;
    border: 1px solid transparent;
}

.btn:hover {
    background: var(--primary-hover-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.2);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--white-color);
    border-color: var(--primary-color);
}

.navbar {
    background: var(--white-color);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
}
.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.navbar .logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.navbar .logo span {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark-color);
}

.navbar .logo-img {
  height: 32px;
  width: auto;
  display: block;
}
.navbar .nav-links {
    display: flex;
    list-style: none;
    align-items: center;
}
.navbar .nav-links li {
    margin-left: 25px;
}
.navbar .nav-links a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
}

/* --- СЕКЦИИ --- */

.hero {
    background: var(--white-color);
    text-align: center;
    padding: 80px 0;
}
.hero .subtitle {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto 40px;
}
.hero .cta-note {
    margin-top: 15px;
    color: #64748B;
}

.problems-grid, .features-grid, .testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 64px;
}

.problem-card, .feature-card, .testimonial-card {
    background: var(--white-color);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease-in-out;
}

.link-card {
    display: block;
    text-decoration: none;
    color: inherit;
}

.link-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.07), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
    border-color: #CBD5E1;
}

.problem-card h3 i {
    color: var(--primary-color);
    margin-right: 10px;
}

.solution, .how-it-works, .features {
    background-color: var(--light-gray-bg);
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
    text-align: center;
}
.solution-card .icon { font-size: 3rem; margin-bottom: 15px; color: var(--primary-color); }

.how-it-works-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 50px;
    text-align: center;
}
.step-card .number {
    display: inline-block;
    width: 50px;
    height: 50px;
    line-height: 50px;
    border-radius: 50%;
    background: var(--primary-color);
    color: var(--white-color);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.final-cta-wrapper {
    padding: 96px 0;
    background: var(--light-gray-bg);
}

.final-cta {
    background: var(--dark-color);
    color: var(--white-color);
    text-align: center;
    border-radius: 16px;
    padding: 64px 20px;
}
.final-cta h2 { color: var(--white-color); }
.final-cta p {
    max-width: 600px;
    margin: 0 auto 30px;
    color: #94A3B8;
}

.footer {
    background: var(--white-color);
    color: #64748B;
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}
.footer p { margin-bottom: 0; }
.footer a { color: var(--text-color); text-decoration: none; }
.footer a:hover { color: var(--primary-color); }

.testimonial-card {
    border-left: 4px solid var(--primary-color);
}
.testimonial-card p {
    font-style: italic;
    margin-bottom: 20px;
}
.testimonial-author {
    display: flex;
    align-items: center;
}
.testimonial-author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 15px;
    object-fit: cover;
}
.author-info strong {
    display: block;
    color: var(--dark-color);
}

/* --- Стили для выпадающего меню в шапке --- */
.navbar .nav-links .dropdown {
    position: relative;
    display: inline-block;
}

.navbar .nav-links .dropdown .dropdown-toggle {
    cursor: pointer;
}

.navbar .nav-links .dropdown .dropdown-menu {
    display: none;
    position: absolute;
    background-color: var(--white-color);
    min-width: 240px;
    box-shadow: 0 8px 16px 0 rgba(15, 23, 42, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    z-index: 1000;
    list-style: none;
    padding: 8px 0;
    margin-top: 10px;
    right: 0; 
}

.navbar .nav-links .dropdown:hover .dropdown-menu {
    display: block;
}

.navbar .nav-links .dropdown-menu li a {
    color: var(--text-color);
    padding: 12px 20px;
    text-decoration: none;
    display: block;
    font-weight: 500;
    font-size: 0.95rem;
}

.navbar .nav-links .dropdown-menu li a:hover {
    background-color: var(--light-gray-bg);
    color: var(--primary-color);
}

.navbar .nav-links .dropdown-menu hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 8px 0;
}

/* --- Адаптивность --- */
@media (max-width: 768px) {
    section { padding: 64px 0; }
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.8rem; }
    .navbar .nav-links { display: none; }
    .solution-grid, .how-it-works-grid, .features-grid, .problems-grid, .testimonials-grid { grid-template-columns: 1fr; }
}