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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: #f5f5f5;
}

.header {
    background-color: #f5f5f5;
    padding: 20px 40px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header-content {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    width: 40px;
    height: 40px;
    background: url('../img/logo.png') center no-repeat;
    background-size: 80% 80%;
    border-radius: 4px;
}

.header-title {
    display: flex;
    flex-direction: column;
}

.header-title h1 {
    font-size: 20px;
    font-weight: 600;
    color: #333;
}

.header-title p {
    font-size: 13px;
    color: #999;
}

.navigation {
    max-width: 1200px;
    margin: 30px auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.nav-button {
    background-color: white;
    border: 1px solid #e0e0e0;
    padding: 5px;
    text-align: center;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 16px;
    color: #555;
    font-weight: 500;
}



.nav-button.active {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    border: none;
}

.info-card {
    max-width: 900px;
    margin: 60px auto;
    padding: 0 40px;
    display: none;
}

.info-card > div:first-child {
    background-color: white;
    border-radius: 12px;
    padding: 50px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    display: flex;
    gap: 40px;
    align-items: center;
}

.info-illustration {
    flex-shrink: 0;
}

.info-content {
    flex: 1;
}

.info-title {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
    line-height: 1.4;
}

.info-text {
    font-size: 15px;
    color: #555;
    line-height: 1.6;
    margin-bottom: 25px;
}

.info-link {
    display: inline-block;
    color: #3498db;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.3s ease;
}

.info-link:hover {
    color: #2980b9;
}

.nav-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.login-container {
    max-width: 500px;
    margin: 20px auto;
    padding: 0 40px;
}

.content-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    gap: 40px;
    align-items: flex-start;
    justify-content: center;
}

.login-container.shifted {
    margin-right: 40px;
    margin-left: auto;
}

.info-card.active {
    opacity: 1;
    transform: translateX(0);
    pointer-events: all;
}

.login-box {
    background-color: white;
    border-radius: 12px;
    padding: 30px 40px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

.login-title {
    font-size: 28px;
    font-weight: 600;
    color: #333;
    margin-bottom: 40px;
    text-align: center;
}

.form-group {
    margin-bottom: 25px;
}

.form-label {
    display: block;
    font-size: 14px;
    color: #555;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 15px;
    transition: border-color 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: #3498db;
}

.login-button {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease;
    margin-top: 10px;
}

.login-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(231, 76, 60, 0.3);
}

.login-footer {
    display: flex;
    justify-content: space-between;
    margin-top: 25px;
    font-size: 14px;
}

.login-footer a {
    color: #3498db;
    text-decoration: none;
    transition: color 0.3s ease;
}

.login-footer a:hover {
    color: #2980b9;
}
.nav-button.active {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    border: none;
}

.error-message {
    color: #3498db;
    font-size: 14px;
    margin-top: 10px;
    text-align: center;
    display: none;
    padding: 10px;
    background-color: #eaf3ff;
    border-radius: 4px;
    border: 1px solid #3498db;
}

.success-message {
    color: #27ae60;
    font-size: 14px;
    margin-top: 10px;
    text-align: center;
    display: none;
    padding: 10px;
    background-color: #eaffea;
    border-radius: 4px;
    border: 1px solid #27ae60;
}

.nav-button.active {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    border: none;
}

@media screen and (max-width: 768px) {
    .header {
        padding: 15px 20px;
    }

    .header-title h1 {
        font-size: 16px;
    }

    .header-title p {
        font-size: 12px;
    }

    .logo {
        width: 35px;
        height: 35px;
    }

    .navigation {
        padding: 0 20px;
        margin: 20px auto;
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .nav-button {
        padding: 15px;
        font-size: 15px;
    }

    .info-card {
        padding: 0 20px;
        margin: 30px auto;
    }

    .info-card > div:first-child {
        flex-direction: column;
        padding: 30px 20px;
        gap: 20px;
    }

    .info-illustration svg {
        width: 100px;
        height: 100px;
    }

    .info-title {
        font-size: 16px;
        text-align: center;
    }

    .info-text {
        font-size: 14px;
    }

    .login-container {
        padding: 0 20px;
        margin: 15px auto;
    }

    .login-box {
        padding: 25px 20px;
    }

    .login-title {
        font-size: 24px;
        margin-bottom: 30px;
    }

    .form-group {
        margin-bottom: 20px;
    }

    .form-input {
        padding: 12px 14px;
        font-size: 16px; /* Предотвращает зум на iOS */
    }

    .login-button {
        padding: 14px;
        font-size: 15px;
    }

    .login-footer {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}

@media screen and (max-width: 480px) {
    .header {
        padding: 12px 15px;
    }

    .header-title h1 {
        font-size: 14px;
    }

    .header-title p {
        font-size: 11px;
    }

    .logo {
        width: 30px;
        height: 30px;
    }

    .navigation {
        padding: 0 15px;
        gap: 12px;
    }

    .nav-button {
        padding: 12px;
        font-size: 14px;
    }

    .info-card {
        padding: 0 15px;
    }

    .info-card > div:first-child {
        padding: 20px 15px;
    }

    .login-container {
        padding: 0 15px;
    }

    .login-box {
        padding: 20px 15px;
    }

    .login-title {
        font-size: 20px;
    }
}