/* style.css - Основные стили для всего сайта */

/* ===== СБРОС СТИЛЕЙ ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: #333333;
    background-color: #f5f7fa;
    min-height: 100vh;
}

/* ===== ТИПОГРАФИЯ ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: #1a237e;
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.75rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
}

a {
    color: #3f51b5;
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: #283593;
}

/* ===== КОНТЕЙНЕРЫ ===== */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== УТИЛИТЫ ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.flex-column { flex-direction: column; }
.justify-content-between { justify-content: space-between; }
.justify-content-center { justify-content: center; }
.align-items-center { align-items: center; }
.align-items-start { align-items: flex-start; }
.align-items-end { align-items: flex-end; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

.bg-white { background-color: #ffffff; }
.bg-light { background-color: #f8f9fa; }
.bg-primary { background-color: #3f51b5; }
.bg-success { background-color: #4caf50; }
.bg-danger { background-color: #f44336; }
.bg-warning { background-color: #ff9800; }

.text-white { color: #ffffff; }
.text-primary { color: #3f51b5; }
.text-success { color: #4caf50; }
.text-danger { color: #f44336; }
.text-muted { color: #6c757d; }

.rounded { border-radius: 6px; }
.rounded-lg { border-radius: 12px; }
.rounded-circle { border-radius: 50%; }

.shadow-sm { box-shadow: 0 2px 4px rgba(0,0,0,0.1); }
.shadow { box-shadow: 0 4px 8px rgba(0,0,0,0.1); }
.shadow-lg { box-shadow: 0 8px 16px rgba(0,0,0,0.1); }

/* ===== ФОРМЫ ===== */
.form-control {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    line-height: 1.5;
    color: #495057;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid #ced4da;
    border-radius: 6px;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
    border-color: #3f51b5;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(63, 81, 181, 0.25);
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #333;
}

/* ===== АДАПТИВНОСТЬ ===== */
@media (max-width: 1200px) {
    .container {
        max-width: 1140px;
    }
}

@media (max-width: 992px) {
    .container {
        max-width: 960px;
    }
    
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
}

@media (max-width: 768px) {
    .container {
        max-width: 720px;
        padding: 0 15px;
    }
}

@media (max-width: 576px) {
    .container {
        max-width: 540px;
        padding: 0 10px;
    }
    
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.1rem; }
}